var app = (function(exports) {
  "use strict"

  function noop() {}
  function safe_not_equal(a, b) {
    return a != a
      ? b == b
      : a !== b || (a && typeof a === "object") || typeof a === "function"
  }

  const subscriber_queue = []
  /**
   * Create a `Writable` store that allows both updating and reading by subscription.
   * @param {*=}value initial value
   * @param {StartStopNotifier=}start start and stop notifications for subscriptions
   */
  function writable(value, start = noop) {
    let stop
    const subscribers = []
    function set(new_value) {
      if (safe_not_equal(value, new_value)) {
        value = new_value
        if (stop) {
          // store is ready
          const run_queue = !subscriber_queue.length
          for (let i = 0; i < subscribers.length; i += 1) {
            const s = subscribers[i]
            s[1]()
            subscriber_queue.push(s, value)
          }
          if (run_queue) {
            for (let i = 0; i < subscriber_queue.length; i += 2) {
              subscriber_queue[i][0](subscriber_queue[i + 1])
            }
            subscriber_queue.length = 0
          }
        }
      }
    }
    function update(fn) {
      set(fn(value))
    }
    function subscribe(run, invalidate = noop) {
      const subscriber = [run, invalidate]
      subscribers.push(subscriber)
      if (subscribers.length === 1) {
        stop = start(set) || noop
      }
      run(value)
      return () => {
        const index = subscribers.indexOf(subscriber)
        if (index !== -1) {
          subscribers.splice(index, 1)
        }
        if (subscribers.length === 0) {
          stop()
          stop = null
        }
      }
    }
    return { set, update, subscribe }
  }

  const createCoreApp = (appDefinition, user) => {
    const app = {
      datastore: null,
      crypto: null,
      publish: () => {},
      hierarchy: appDefinition.hierarchy,
      actions: appDefinition.actions,
      user,
    }

    return app
  }

  var commonjsGlobal =
    typeof globalThis !== "undefined"
      ? globalThis
      : typeof window !== "undefined"
      ? window
      : typeof global !== "undefined"
      ? global
      : typeof self !== "undefined"
      ? self
      : {}

  function commonjsRequire() {
    throw new Error(
      "Dynamic requires are not currently supported by rollup-plugin-commonjs"
    )
  }

  function createCommonjsModule(fn, module) {
    return (
      (module = { exports: {} }), fn(module, module.exports), module.exports
    )
  }

  var lodash_min = createCommonjsModule(function(module, exports) {
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          case 3:
            return n.call(t, r[0], r[1], r[2])
        }
        return n.apply(t, r)
      }
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          t(e, o, r(o), n)
        }
        return e
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      function r(n, t) {
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          ++r < e && false !== t(n[r], r, n);

        );
        return n
      }
      function e(n, t) {
        for (
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          r-- && false !== t(n[r], r, n);

        );
        return n
      }
      function u(n, t) {
        for (var r = -1, e = null == n ? 0 : n.length; ++r < e; )
          if (!t(n[r], r, n)) return false
        return true
      }
      function i(n, t) {
        for (
          var r = -1, e = null == n ? 0 : n.length, u = 0, i = [];
          ++r < e;

        ) {
          var o = n[r]
          t(o, r, n) && (i[u++] = o)
        }
        return i
      }
      function o(n, t) {
        return !(null == n || !n.length) && -1 < v(n, t, 0)
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        return false
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        return n
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        return false
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      }
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        }
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          return null == n ? T : n[t]
        }
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      function w(n, t) {
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      function m(n, t) {
        for (var r, e = -1, u = n.length; ++e < u; ) {
          var i = t(n[e])
          i !== T && (r = r === T ? i : r + i)
        }
        return r
      }
      function A(n, t) {
        for (var r = -1, e = Array(n); ++r < n; ) e[r] = t(r)
        return e
      }
      function E(n, t) {
        return c(t, function(t) {
          return [t, n[t]]
        })
      }
      function k(n) {
        return function(t) {
          return n(t)
        }
      }
      function S(n, t) {
        return c(t, function(t) {
          return n[t]
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      }
      function O(n, t) {
        return n.has(t)
      }
      function I(n, t) {
        for (var r = -1, e = n.length; ++r < e && -1 < v(t, n[r], 0); );
        return r
      }
      function R(n, t) {
        for (var r = n.length; r-- && -1 < v(t, n[r], 0); );
        return r
      }
      function z(n) {
        return "\\" + Un[n]
      }
      function W(n) {
        var t = -1,
          r = Array(n.size)
        return (
          n.forEach(function(n, e) {
            r[++t] = [e, n]
          }),
          r
        )
      }
      function B(n, t) {
        return function(r) {
          return n(t(r))
        }
      }
      function L(n, t) {
        for (var r = -1, e = n.length, u = 0, i = []; ++r < e; ) {
          var o = n[r]
          ;(o !== t && "__lodash_placeholder__" !== o) ||
            ((n[r] = "__lodash_placeholder__"), (i[u++] = r))
        }
        return i
      }
      function U(n) {
        var t = -1,
          r = Array(n.size)
        return (
          n.forEach(function(n) {
            r[++t] = n
          }),
          r
        )
      }
      function C(n) {
        var t = -1,
          r = Array(n.size)
        return (
          n.forEach(function(n) {
            r[++t] = [n, n]
          }),
          r
        )
      }
      function D(n) {
        if (Rn.test(n)) {
          for (var t = (On.lastIndex = 0); On.test(n); ) ++t
          n = t
        } else n = Qn(n)
        return n
      }
      function M(n) {
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      }
      var T,
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        F = NaN,
        N = [
          ["ary", 128],
          ["bind", 1],
          ["bindKey", 2],
          ["curry", 8],
          ["curryRight", 16],
          ["flip", 512],
          ["partial", 32],
          ["partialRight", 64],
          ["rearg", 256],
        ],
        P = /\b__p\+='';/g,
        Z = /\b(__p\+=)''\+/g,
        q = /(__e\(.*?\)|\b__t\))\+'';/g,
        V = /&(?:amp|lt|gt|quot|#39);/g,
        K = /[&<>"']/g,
        G = RegExp(V.source),
        H = RegExp(K.source),
        J = /<%-([\s\S]+?)%>/g,
        Y = /<%([\s\S]+?)%>/g,
        Q = /<%=([\s\S]+?)%>/g,
        X = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/,
        nn = /^\w*$/,
        tn = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g,
        rn = /[\\^$.*+?()[\]{}|]/g,
        en = RegExp(rn.source),
        un = /^\s+|\s+$/g,
        on = /^\s+/,
        fn = /\s+$/,
        cn = /\{(?:\n\/\* \[wrapped with .+\] \*\/)?\n?/,
        an = /\{\n\/\* \[wrapped with (.+)\] \*/,
        ln = /,? & /,
        sn = /[^\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\x7f]+/g,
        hn = /\\(\\)?/g,
        pn = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g,
        _n = /\w*$/,
        vn = /^[-+]0x[0-9a-f]+$/i,
        gn = /^0b[01]+$/i,
        dn = /^\[object .+?Constructor\]$/,
        yn = /^0o[0-7]+$/i,
        bn = /^(?:0|[1-9]\d*)$/,
        xn = /[\xc0-\xd6\xd8-\xf6\xf8-\xff\u0100-\u017f]/g,
        jn = /($^)/,
        wn = /['\n\r\u2028\u2029\\]/g,
        mn =
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        An =
          "(?:[\\u2700-\\u27bf]|(?:\\ud83c[\\udde6-\\uddff]){2}|[\\ud800-\\udbff][\\udc00-\\udfff])" +
          mn,
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        kn = RegExp("['\u2019]", "g"),
        Sn = RegExp("[\\u0300-\\u036f\\ufe20-\\ufe2f\\u20d0-\\u20ff]", "g"),
        On = RegExp(
          "\\ud83c[\\udffb-\\udfff](?=\\ud83c[\\udffb-\\udfff])|" + En + mn,
          "g"
        ),
        In = RegExp(
          [
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            An,
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        ] = Bn["[object Boolean]"] = Bn["[object DataView]"] = Bn[
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          "[object Map]"
        ] = Bn["[object Number]"] = Bn["[object Object]"] = Bn[
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          á: "a",
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          É: "E",
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          Ë: "E",
          è: "e",
          é: "e",
          ê: "e",
          ë: "e",
          Ì: "I",
          Í: "I",
          Î: "I",
          Ï: "I",
          ì: "i",
          í: "i",
          î: "i",
          ï: "i",
          Ñ: "N",
          ñ: "n",
          Ò: "O",
          Ó: "O",
          Ô: "O",
          Õ: "O",
          Ö: "O",
          Ø: "O",
          ò: "o",
          ó: "o",
          ô: "o",
          õ: "o",
          ö: "o",
          ø: "o",
          Ù: "U",
          Ú: "U",
          Û: "U",
          Ü: "U",
          ù: "u",
          ú: "u",
          û: "u",
          ü: "u",
          Ý: "Y",
          ý: "y",
          ÿ: "y",
          Æ: "Ae",
          æ: "ae",
          Þ: "Th",
          þ: "th",
          ß: "ss",
          Ā: "A",
          Ă: "A",
          Ą: "A",
          ā: "a",
          ă: "a",
          ą: "a",
          Ć: "C",
          Ĉ: "C",
          Ċ: "C",
          Č: "C",
          ć: "c",
          ĉ: "c",
          ċ: "c",
          č: "c",
          Ď: "D",
          Đ: "D",
          ď: "d",
          đ: "d",
          Ē: "E",
          Ĕ: "E",
          Ė: "E",
          Ę: "E",
          Ě: "E",
          ē: "e",
          ĕ: "e",
          ė: "e",
          ę: "e",
          ě: "e",
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          Ğ: "G",
          Ġ: "G",
          Ģ: "G",
          ĝ: "g",
          ğ: "g",
          ġ: "g",
          ģ: "g",
          Ĥ: "H",
          Ħ: "H",
          ĥ: "h",
          ħ: "h",
          Ĩ: "I",
          Ī: "I",
          Ĭ: "I",
          Į: "I",
          İ: "I",
          ĩ: "i",
          ī: "i",
          ĭ: "i",
          į: "i",
          ı: "i",
          Ĵ: "J",
          ĵ: "j",
          Ķ: "K",
          ķ: "k",
          ĸ: "k",
          Ĺ: "L",
          Ļ: "L",
          Ľ: "L",
          Ŀ: "L",
          Ł: "L",
          ĺ: "l",
          ļ: "l",
          ľ: "l",
          ŀ: "l",
          ł: "l",
          Ń: "N",
          Ņ: "N",
          Ň: "N",
          Ŋ: "N",
          ń: "n",
          ņ: "n",
          ň: "n",
          ŋ: "n",
          Ō: "O",
          Ŏ: "O",
          Ő: "O",
          ō: "o",
          ŏ: "o",
          ő: "o",
          Ŕ: "R",
          Ŗ: "R",
          Ř: "R",
          ŕ: "r",
          ŗ: "r",
          ř: "r",
          Ś: "S",
          Ŝ: "S",
          Ş: "S",
          Š: "S",
          ś: "s",
          ŝ: "s",
          ş: "s",
          š: "s",
          Ţ: "T",
          Ť: "T",
          Ŧ: "T",
          ţ: "t",
          ť: "t",
          ŧ: "t",
          Ũ: "U",
          Ū: "U",
          Ŭ: "U",
          Ů: "U",
          Ű: "U",
          Ų: "U",
          ũ: "u",
          ū: "u",
          ŭ: "u",
          ů: "u",
          ű: "u",
          ų: "u",
          Ŵ: "W",
          ŵ: "w",
          Ŷ: "Y",
          ŷ: "y",
          Ÿ: "Y",
          Ź: "Z",
          Ż: "Z",
          Ž: "Z",
          ź: "z",
          ż: "z",
          ž: "z",
          IJ: "IJ",
          ij: "ij",
          Œ: "Oe",
          œ: "oe",
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          ſ: "s",
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          function It(n, t) {
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                l = Ku(i),
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            ) {
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              a && t && (p = c(p, k(t))),
                (s = Ci(p.length, s)),
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                t(e, r(n), u, i)
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              e
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          function Lt(t, r, e) {
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              (t = 2 > r.length ? t : kt(t, hr(r, 0, -1))),
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              null == r ? T : n(r, t, e)
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          function Ut(n) {
            return yu(n) && "[object Arguments]" == Ot(n)
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          function Ct(n) {
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          function Dt(n) {
            return yu(n) && "[object Date]" == Ot(n)
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          function Mt(n, t, r, e, u) {
            if (n === t) t = true
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              )
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              )
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                e = 1 == r || 3 == r
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                u = An[e ? "take" + ("last" == t ? "Right" : "") : t],
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            r("pop push shift sort splice unshift".split(" "), function(n) {
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  var _mapping = createCommonjsModule(function(module, exports) {
    /** Used to map aliases to their real names. */
    exports.aliasToReal = {
      // Lodash aliases.
      each: "forEach",
      eachRight: "forEachRight",
      entries: "toPairs",
      entriesIn: "toPairsIn",
      extend: "assignIn",
      extendAll: "assignInAll",
      extendAllWith: "assignInAllWith",
      extendWith: "assignInWith",
      first: "head",

      // Methods that are curried variants of others.
      conforms: "conformsTo",
      matches: "isMatch",
      property: "get",

      // Ramda aliases.
      __: "placeholder",
      F: "stubFalse",
      T: "stubTrue",
      all: "every",
      allPass: "overEvery",
      always: "constant",
      any: "some",
      anyPass: "overSome",
      apply: "spread",
      assoc: "set",
      assocPath: "set",
      complement: "negate",
      compose: "flowRight",
      contains: "includes",
      dissoc: "unset",
      dissocPath: "unset",
      dropLast: "dropRight",
      dropLastWhile: "dropRightWhile",
      equals: "isEqual",
      identical: "eq",
      indexBy: "keyBy",
      init: "initial",
      invertObj: "invert",
      juxt: "over",
      omitAll: "omit",
      nAry: "ary",
      path: "get",
      pathEq: "matchesProperty",
      pathOr: "getOr",
      paths: "at",
      pickAll: "pick",
      pipe: "flow",
      pluck: "map",
      prop: "get",
      propEq: "matchesProperty",
      propOr: "getOr",
      props: "at",
      symmetricDifference: "xor",
      symmetricDifferenceBy: "xorBy",
      symmetricDifferenceWith: "xorWith",
      takeLast: "takeRight",
      takeLastWhile: "takeRightWhile",
      unapply: "rest",
      unnest: "flatten",
      useWith: "overArgs",
      where: "conformsTo",
      whereEq: "isMatch",
      zipObj: "zipObject",
    }

    /** Used to map ary to method names. */
    exports.aryMethod = {
      "1": [
        "assignAll",
        "assignInAll",
        "attempt",
        "castArray",
        "ceil",
        "create",
        "curry",
        "curryRight",
        "defaultsAll",
        "defaultsDeepAll",
        "floor",
        "flow",
        "flowRight",
        "fromPairs",
        "invert",
        "iteratee",
        "memoize",
        "method",
        "mergeAll",
        "methodOf",
        "mixin",
        "nthArg",
        "over",
        "overEvery",
        "overSome",
        "rest",
        "reverse",
        "round",
        "runInContext",
        "spread",
        "template",
        "trim",
        "trimEnd",
        "trimStart",
        "uniqueId",
        "words",
        "zipAll",
      ],
      "2": [
        "add",
        "after",
        "ary",
        "assign",
        "assignAllWith",
        "assignIn",
        "assignInAllWith",
        "at",
        "before",
        "bind",
        "bindAll",
        "bindKey",
        "chunk",
        "cloneDeepWith",
        "cloneWith",
        "concat",
        "conformsTo",
        "countBy",
        "curryN",
        "curryRightN",
        "debounce",
        "defaults",
        "defaultsDeep",
        "defaultTo",
        "delay",
        "difference",
        "divide",
        "drop",
        "dropRight",
        "dropRightWhile",
        "dropWhile",
        "endsWith",
        "eq",
        "every",
        "filter",
        "find",
        "findIndex",
        "findKey",
        "findLast",
        "findLastIndex",
        "findLastKey",
        "flatMap",
        "flatMapDeep",
        "flattenDepth",
        "forEach",
        "forEachRight",
        "forIn",
        "forInRight",
        "forOwn",
        "forOwnRight",
        "get",
        "groupBy",
        "gt",
        "gte",
        "has",
        "hasIn",
        "includes",
        "indexOf",
        "intersection",
        "invertBy",
        "invoke",
        "invokeMap",
        "isEqual",
        "isMatch",
        "join",
        "keyBy",
        "lastIndexOf",
        "lt",
        "lte",
        "map",
        "mapKeys",
        "mapValues",
        "matchesProperty",
        "maxBy",
        "meanBy",
        "merge",
        "mergeAllWith",
        "minBy",
        "multiply",
        "nth",
        "omit",
        "omitBy",
        "overArgs",
        "pad",
        "padEnd",
        "padStart",
        "parseInt",
        "partial",
        "partialRight",
        "partition",
        "pick",
        "pickBy",
        "propertyOf",
        "pull",
        "pullAll",
        "pullAt",
        "random",
        "range",
        "rangeRight",
        "rearg",
        "reject",
        "remove",
        "repeat",
        "restFrom",
        "result",
        "sampleSize",
        "some",
        "sortBy",
        "sortedIndex",
        "sortedIndexOf",
        "sortedLastIndex",
        "sortedLastIndexOf",
        "sortedUniqBy",
        "split",
        "spreadFrom",
        "startsWith",
        "subtract",
        "sumBy",
        "take",
        "takeRight",
        "takeRightWhile",
        "takeWhile",
        "tap",
        "throttle",
        "thru",
        "times",
        "trimChars",
        "trimCharsEnd",
        "trimCharsStart",
        "truncate",
        "union",
        "uniqBy",
        "uniqWith",
        "unset",
        "unzipWith",
        "without",
        "wrap",
        "xor",
        "zip",
        "zipObject",
        "zipObjectDeep",
      ],
      "3": [
        "assignInWith",
        "assignWith",
        "clamp",
        "differenceBy",
        "differenceWith",
        "findFrom",
        "findIndexFrom",
        "findLastFrom",
        "findLastIndexFrom",
        "getOr",
        "includesFrom",
        "indexOfFrom",
        "inRange",
        "intersectionBy",
        "intersectionWith",
        "invokeArgs",
        "invokeArgsMap",
        "isEqualWith",
        "isMatchWith",
        "flatMapDepth",
        "lastIndexOfFrom",
        "mergeWith",
        "orderBy",
        "padChars",
        "padCharsEnd",
        "padCharsStart",
        "pullAllBy",
        "pullAllWith",
        "rangeStep",
        "rangeStepRight",
        "reduce",
        "reduceRight",
        "replace",
        "set",
        "slice",
        "sortedIndexBy",
        "sortedLastIndexBy",
        "transform",
        "unionBy",
        "unionWith",
        "update",
        "xorBy",
        "xorWith",
        "zipWith",
      ],
      "4": ["fill", "setWith", "updateWith"],
    }

    /** Used to map ary to rearg configs. */
    exports.aryRearg = {
      "2": [1, 0],
      "3": [2, 0, 1],
      "4": [3, 2, 0, 1],
    }

    /** Used to map method names to their iteratee ary. */
    exports.iterateeAry = {
      dropRightWhile: 1,
      dropWhile: 1,
      every: 1,
      filter: 1,
      find: 1,
      findFrom: 1,
      findIndex: 1,
      findIndexFrom: 1,
      findKey: 1,
      findLast: 1,
      findLastFrom: 1,
      findLastIndex: 1,
      findLastIndexFrom: 1,
      findLastKey: 1,
      flatMap: 1,
      flatMapDeep: 1,
      flatMapDepth: 1,
      forEach: 1,
      forEachRight: 1,
      forIn: 1,
      forInRight: 1,
      forOwn: 1,
      forOwnRight: 1,
      map: 1,
      mapKeys: 1,
      mapValues: 1,
      partition: 1,
      reduce: 2,
      reduceRight: 2,
      reject: 1,
      remove: 1,
      some: 1,
      takeRightWhile: 1,
      takeWhile: 1,
      times: 1,
      transform: 2,
    }

    /** Used to map method names to iteratee rearg configs. */
    exports.iterateeRearg = {
      mapKeys: [1],
      reduceRight: [1, 0],
    }

    /** Used to map method names to rearg configs. */
    exports.methodRearg = {
      assignInAllWith: [1, 0],
      assignInWith: [1, 2, 0],
      assignAllWith: [1, 0],
      assignWith: [1, 2, 0],
      differenceBy: [1, 2, 0],
      differenceWith: [1, 2, 0],
      getOr: [2, 1, 0],
      intersectionBy: [1, 2, 0],
      intersectionWith: [1, 2, 0],
      isEqualWith: [1, 2, 0],
      isMatchWith: [2, 1, 0],
      mergeAllWith: [1, 0],
      mergeWith: [1, 2, 0],
      padChars: [2, 1, 0],
      padCharsEnd: [2, 1, 0],
      padCharsStart: [2, 1, 0],
      pullAllBy: [2, 1, 0],
      pullAllWith: [2, 1, 0],
      rangeStep: [1, 2, 0],
      rangeStepRight: [1, 2, 0],
      setWith: [3, 1, 2, 0],
      sortedIndexBy: [2, 1, 0],
      sortedLastIndexBy: [2, 1, 0],
      unionBy: [1, 2, 0],
      unionWith: [1, 2, 0],
      updateWith: [3, 1, 2, 0],
      xorBy: [1, 2, 0],
      xorWith: [1, 2, 0],
      zipWith: [1, 2, 0],
    }

    /** Used to map method names to spread configs. */
    exports.methodSpread = {
      assignAll: { start: 0 },
      assignAllWith: { start: 0 },
      assignInAll: { start: 0 },
      assignInAllWith: { start: 0 },
      defaultsAll: { start: 0 },
      defaultsDeepAll: { start: 0 },
      invokeArgs: { start: 2 },
      invokeArgsMap: { start: 2 },
      mergeAll: { start: 0 },
      mergeAllWith: { start: 0 },
      partial: { start: 1 },
      partialRight: { start: 1 },
      without: { start: 1 },
      zipAll: { start: 0 },
    }

    /** Used to identify methods which mutate arrays or objects. */
    exports.mutate = {
      array: {
        fill: true,
        pull: true,
        pullAll: true,
        pullAllBy: true,
        pullAllWith: true,
        pullAt: true,
        remove: true,
        reverse: true,
      },
      object: {
        assign: true,
        assignAll: true,
        assignAllWith: true,
        assignIn: true,
        assignInAll: true,
        assignInAllWith: true,
        assignInWith: true,
        assignWith: true,
        defaults: true,
        defaultsAll: true,
        defaultsDeep: true,
        defaultsDeepAll: true,
        merge: true,
        mergeAll: true,
        mergeAllWith: true,
        mergeWith: true,
      },
      set: {
        set: true,
        setWith: true,
        unset: true,
        update: true,
        updateWith: true,
      },
    }

    /** Used to map real names to their aliases. */
    exports.realToAlias = (function() {
      var hasOwnProperty = Object.prototype.hasOwnProperty,
        object = exports.aliasToReal,
        result = {}

      for (var key in object) {
        var value = object[key]
        if (hasOwnProperty.call(result, value)) {
          result[value].push(key)
        } else {
          result[value] = [key]
        }
      }
      return result
    })()

    /** Used to map method names to other names. */
    exports.remap = {
      assignAll: "assign",
      assignAllWith: "assignWith",
      assignInAll: "assignIn",
      assignInAllWith: "assignInWith",
      curryN: "curry",
      curryRightN: "curryRight",
      defaultsAll: "defaults",
      defaultsDeepAll: "defaultsDeep",
      findFrom: "find",
      findIndexFrom: "findIndex",
      findLastFrom: "findLast",
      findLastIndexFrom: "findLastIndex",
      getOr: "get",
      includesFrom: "includes",
      indexOfFrom: "indexOf",
      invokeArgs: "invoke",
      invokeArgsMap: "invokeMap",
      lastIndexOfFrom: "lastIndexOf",
      mergeAll: "merge",
      mergeAllWith: "mergeWith",
      padChars: "pad",
      padCharsEnd: "padEnd",
      padCharsStart: "padStart",
      propertyOf: "get",
      rangeStep: "range",
      rangeStepRight: "rangeRight",
      restFrom: "rest",
      spreadFrom: "spread",
      trimChars: "trim",
      trimCharsEnd: "trimEnd",
      trimCharsStart: "trimStart",
      zipAll: "zip",
    }

    /** Used to track methods that skip fixing their arity. */
    exports.skipFixed = {
      castArray: true,
      flow: true,
      flowRight: true,
      iteratee: true,
      mixin: true,
      rearg: true,
      runInContext: true,
    }

    /** Used to track methods that skip rearranging arguments. */
    exports.skipRearg = {
      add: true,
      assign: true,
      assignIn: true,
      bind: true,
      bindKey: true,
      concat: true,
      difference: true,
      divide: true,
      eq: true,
      gt: true,
      gte: true,
      isEqual: true,
      lt: true,
      lte: true,
      matchesProperty: true,
      merge: true,
      multiply: true,
      overArgs: true,
      partial: true,
      partialRight: true,
      propertyOf: true,
      random: true,
      range: true,
      rangeRight: true,
      subtract: true,
      zip: true,
      zipObject: true,
      zipObjectDeep: true,
    }
  })
  var _mapping_1 = _mapping.aliasToReal
  var _mapping_2 = _mapping.aryMethod
  var _mapping_3 = _mapping.aryRearg
  var _mapping_4 = _mapping.iterateeAry
  var _mapping_5 = _mapping.iterateeRearg
  var _mapping_6 = _mapping.methodRearg
  var _mapping_7 = _mapping.methodSpread
  var _mapping_8 = _mapping.mutate
  var _mapping_9 = _mapping.realToAlias
  var _mapping_10 = _mapping.remap
  var _mapping_11 = _mapping.skipFixed
  var _mapping_12 = _mapping.skipRearg

  /**
   * The default argument placeholder value for methods.
   *
   * @type {Object}
   */
  var placeholder = {}

  /** Built-in value reference. */
  var push = Array.prototype.push

  /**
   * Creates a function, with an arity of `n`, that invokes `func` with the
   * arguments it receives.
   *
   * @private
   * @param {Function} func The function to wrap.
   * @param {number} n The arity of the new function.
   * @returns {Function} Returns the new function.
   */
  function baseArity(func, n) {
    return n == 2
      ? function(a, b) {
          return func.apply(undefined, arguments)
        }
      : function(a) {
          return func.apply(undefined, arguments)
        }
  }

  /**
   * Creates a function that invokes `func`, with up to `n` arguments, ignoring
   * any additional arguments.
   *
   * @private
   * @param {Function} func The function to cap arguments for.
   * @param {number} n The arity cap.
   * @returns {Function} Returns the new function.
   */
  function baseAry(func, n) {
    return n == 2
      ? function(a, b) {
          return func(a, b)
        }
      : function(a) {
          return func(a)
        }
  }

  /**
   * Creates a clone of `array`.
   *
   * @private
   * @param {Array} array The array to clone.
   * @returns {Array} Returns the cloned array.
   */
  function cloneArray(array) {
    var length = array ? array.length : 0,
      result = Array(length)

    while (length--) {
      result[length] = array[length]
    }
    return result
  }

  /**
   * Creates a function that clones a given object using the assignment `func`.
   *
   * @private
   * @param {Function} func The assignment function.
   * @returns {Function} Returns the new cloner function.
   */
  function createCloner(func) {
    return function(object) {
      return func({}, object)
    }
  }

  /**
   * A specialized version of `_.spread` which flattens the spread array into
   * the arguments of the invoked `func`.
   *
   * @private
   * @param {Function} func The function to spread arguments over.
   * @param {number} start The start position of the spread.
   * @returns {Function} Returns the new function.
   */
  function flatSpread(func, start) {
    return function() {
      var length = arguments.length,
        lastIndex = length - 1,
        args = Array(length)

      while (length--) {
        args[length] = arguments[length]
      }
      var array = args[start],
        otherArgs = args.slice(0, start)

      if (array) {
        push.apply(otherArgs, array)
      }
      if (start != lastIndex) {
        push.apply(otherArgs, args.slice(start + 1))
      }
      return func.apply(this, otherArgs)
    }
  }

  /**
   * Creates a function that wraps `func` and uses `cloner` to clone the first
   * argument it receives.
   *
   * @private
   * @param {Function} func The function to wrap.
   * @param {Function} cloner The function to clone arguments.
   * @returns {Function} Returns the new immutable function.
   */
  function wrapImmutable(func, cloner) {
    return function() {
      var length = arguments.length
      if (!length) {
        return
      }
      var args = Array(length)
      while (length--) {
        args[length] = arguments[length]
      }
      var result = (args[0] = cloner.apply(undefined, args))
      func.apply(undefined, args)
      return result
    }
  }

  /**
   * The base implementation of `convert` which accepts a `util` object of methods
   * required to perform conversions.
   *
   * @param {Object} util The util object.
   * @param {string} name The name of the function to convert.
   * @param {Function} func The function to convert.
   * @param {Object} [options] The options object.
   * @param {boolean} [options.cap=true] Specify capping iteratee arguments.
   * @param {boolean} [options.curry=true] Specify currying.
   * @param {boolean} [options.fixed=true] Specify fixed arity.
   * @param {boolean} [options.immutable=true] Specify immutable operations.
   * @param {boolean} [options.rearg=true] Specify rearranging arguments.
   * @returns {Function|Object} Returns the converted function or object.
   */
  function baseConvert(util, name, func, options) {
    var isLib = typeof name == "function",
      isObj = name === Object(name)

    if (isObj) {
      options = func
      func = name
      name = undefined
    }
    if (func == null) {
      throw new TypeError()
    }
    options || (options = {})

    var config = {
      cap: "cap" in options ? options.cap : true,
      curry: "curry" in options ? options.curry : true,
      fixed: "fixed" in options ? options.fixed : true,
      immutable: "immutable" in options ? options.immutable : true,
      rearg: "rearg" in options ? options.rearg : true,
    }

    var defaultHolder = isLib ? func : placeholder,
      forceCurry = "curry" in options && options.curry,
      forceFixed = "fixed" in options && options.fixed,
      forceRearg = "rearg" in options && options.rearg,
      pristine = isLib ? func.runInContext() : undefined

    var helpers = isLib
      ? func
      : {
          ary: util.ary,
          assign: util.assign,
          clone: util.clone,
          curry: util.curry,
          forEach: util.forEach,
          isArray: util.isArray,
          isError: util.isError,
          isFunction: util.isFunction,
          isWeakMap: util.isWeakMap,
          iteratee: util.iteratee,
          keys: util.keys,
          rearg: util.rearg,
          toInteger: util.toInteger,
          toPath: util.toPath,
        }

    var ary = helpers.ary,
      assign = helpers.assign,
      clone = helpers.clone,
      curry = helpers.curry,
      each = helpers.forEach,
      isArray = helpers.isArray,
      isError = helpers.isError,
      isFunction = helpers.isFunction,
      isWeakMap = helpers.isWeakMap,
      keys = helpers.keys,
      rearg = helpers.rearg,
      toInteger = helpers.toInteger,
      toPath = helpers.toPath

    var aryMethodKeys = keys(_mapping.aryMethod)

    var wrappers = {
      castArray: function(castArray) {
        return function() {
          var value = arguments[0]
          return isArray(value)
            ? castArray(cloneArray(value))
            : castArray.apply(undefined, arguments)
        }
      },
      iteratee: function(iteratee) {
        return function() {
          var func = arguments[0],
            arity = arguments[1],
            result = iteratee(func, arity),
            length = result.length

          if (config.cap && typeof arity == "number") {
            arity = arity > 2 ? arity - 2 : 1
            return length && length <= arity ? result : baseAry(result, arity)
          }
          return result
        }
      },
      mixin: function(mixin) {
        return function(source) {
          var func = this
          if (!isFunction(func)) {
            return mixin(func, Object(source))
          }
          var pairs = []
          each(keys(source), function(key) {
            if (isFunction(source[key])) {
              pairs.push([key, func.prototype[key]])
            }
          })

          mixin(func, Object(source))

          each(pairs, function(pair) {
            var value = pair[1]
            if (isFunction(value)) {
              func.prototype[pair[0]] = value
            } else {
              delete func.prototype[pair[0]]
            }
          })
          return func
        }
      },
      nthArg: function(nthArg) {
        return function(n) {
          var arity = n < 0 ? 1 : toInteger(n) + 1
          return curry(nthArg(n), arity)
        }
      },
      rearg: function(rearg) {
        return function(func, indexes) {
          var arity = indexes ? indexes.length : 0
          return curry(rearg(func, indexes), arity)
        }
      },
      runInContext: function(runInContext) {
        return function(context) {
          return baseConvert(util, runInContext(context), options)
        }
      },
    }

    /*--------------------------------------------------------------------------*/

    /**
     * Casts `func` to a function with an arity capped iteratee if needed.
     *
     * @private
     * @param {string} name The name of the function to inspect.
     * @param {Function} func The function to inspect.
     * @returns {Function} Returns the cast function.
     */
    function castCap(name, func) {
      if (config.cap) {
        var indexes = _mapping.iterateeRearg[name]
        if (indexes) {
          return iterateeRearg(func, indexes)
        }
        var n = !isLib && _mapping.iterateeAry[name]
        if (n) {
          return iterateeAry(func, n)
        }
      }
      return func
    }

    /**
     * Casts `func` to a curried function if needed.
     *
     * @private
     * @param {string} name The name of the function to inspect.
     * @param {Function} func The function to inspect.
     * @param {number} n The arity of `func`.
     * @returns {Function} Returns the cast function.
     */
    function castCurry(name, func, n) {
      return forceCurry || (config.curry && n > 1) ? curry(func, n) : func
    }

    /**
     * Casts `func` to a fixed arity function if needed.
     *
     * @private
     * @param {string} name The name of the function to inspect.
     * @param {Function} func The function to inspect.
     * @param {number} n The arity cap.
     * @returns {Function} Returns the cast function.
     */
    function castFixed(name, func, n) {
      if (config.fixed && (forceFixed || !_mapping.skipFixed[name])) {
        var data = _mapping.methodSpread[name],
          start = data && data.start

        return start === undefined ? ary(func, n) : flatSpread(func, start)
      }
      return func
    }

    /**
     * Casts `func` to an rearged function if needed.
     *
     * @private
     * @param {string} name The name of the function to inspect.
     * @param {Function} func The function to inspect.
     * @param {number} n The arity of `func`.
     * @returns {Function} Returns the cast function.
     */
    function castRearg(name, func, n) {
      return config.rearg && n > 1 && (forceRearg || !_mapping.skipRearg[name])
        ? rearg(func, _mapping.methodRearg[name] || _mapping.aryRearg[n])
        : func
    }

    /**
     * Creates a clone of `object` by `path`.
     *
     * @private
     * @param {Object} object The object to clone.
     * @param {Array|string} path The path to clone by.
     * @returns {Object} Returns the cloned object.
     */
    function cloneByPath(object, path) {
      path = toPath(path)

      var index = -1,
        length = path.length,
        lastIndex = length - 1,
        result = clone(Object(object)),
        nested = result

      while (nested != null && ++index < length) {
        var key = path[index],
          value = nested[key]

        if (
          value != null &&
          !(isFunction(value) || isError(value) || isWeakMap(value))
        ) {
          nested[key] = clone(index == lastIndex ? value : Object(value))
        }
        nested = nested[key]
      }
      return result
    }

    /**
     * Converts `lodash` to an immutable auto-curried iteratee-first data-last
     * version with conversion `options` applied.
     *
     * @param {Object} [options] The options object. See `baseConvert` for more details.
     * @returns {Function} Returns the converted `lodash`.
     */
    function convertLib(options) {
      return _.runInContext.convert(options)(undefined)
    }

    /**
     * Create a converter function for `func` of `name`.
     *
     * @param {string} name The name of the function to convert.
     * @param {Function} func The function to convert.
     * @returns {Function} Returns the new converter function.
     */
    function createConverter(name, func) {
      var realName = _mapping.aliasToReal[name] || name,
        methodName = _mapping.remap[realName] || realName,
        oldOptions = options

      return function(options) {
        var newUtil = isLib ? pristine : helpers,
          newFunc = isLib ? pristine[methodName] : func,
          newOptions = assign(assign({}, oldOptions), options)

        return baseConvert(newUtil, realName, newFunc, newOptions)
      }
    }

    /**
     * Creates a function that wraps `func` to invoke its iteratee, with up to `n`
     * arguments, ignoring any additional arguments.
     *
     * @private
     * @param {Function} func The function to cap iteratee arguments for.
     * @param {number} n The arity cap.
     * @returns {Function} Returns the new function.
     */
    function iterateeAry(func, n) {
      return overArg(func, function(func) {
        return typeof func == "function" ? baseAry(func, n) : func
      })
    }

    /**
     * Creates a function that wraps `func` to invoke its iteratee with arguments
     * arranged according to the specified `indexes` where the argument value at
     * the first index is provided as the first argument, the argument value at
     * the second index is provided as the second argument, and so on.
     *
     * @private
     * @param {Function} func The function to rearrange iteratee arguments for.
     * @param {number[]} indexes The arranged argument indexes.
     * @returns {Function} Returns the new function.
     */
    function iterateeRearg(func, indexes) {
      return overArg(func, function(func) {
        var n = indexes.length
        return baseArity(rearg(baseAry(func, n), indexes), n)
      })
    }

    /**
     * Creates a function that invokes `func` with its first argument transformed.
     *
     * @private
     * @param {Function} func The function to wrap.
     * @param {Function} transform The argument transform.
     * @returns {Function} Returns the new function.
     */
    function overArg(func, transform) {
      return function() {
        var length = arguments.length
        if (!length) {
          return func()
        }
        var args = Array(length)
        while (length--) {
          args[length] = arguments[length]
        }
        var index = config.rearg ? 0 : length - 1
        args[index] = transform(args[index])
        return func.apply(undefined, args)
      }
    }

    /**
     * Creates a function that wraps `func` and applys the conversions
     * rules by `name`.
     *
     * @private
     * @param {string} name The name of the function to wrap.
     * @param {Function} func The function to wrap.
     * @returns {Function} Returns the converted function.
     */
    function wrap(name, func, placeholder) {
      var result,
        realName = _mapping.aliasToReal[name] || name,
        wrapped = func,
        wrapper = wrappers[realName]

      if (wrapper) {
        wrapped = wrapper(func)
      } else if (config.immutable) {
        if (_mapping.mutate.array[realName]) {
          wrapped = wrapImmutable(func, cloneArray)
        } else if (_mapping.mutate.object[realName]) {
          wrapped = wrapImmutable(func, createCloner(func))
        } else if (_mapping.mutate.set[realName]) {
          wrapped = wrapImmutable(func, cloneByPath)
        }
      }
      each(aryMethodKeys, function(aryKey) {
        each(_mapping.aryMethod[aryKey], function(otherName) {
          if (realName == otherName) {
            var data = _mapping.methodSpread[realName],
              afterRearg = data && data.afterRearg

            result = afterRearg
              ? castFixed(
                  realName,
                  castRearg(realName, wrapped, aryKey),
                  aryKey
                )
              : castRearg(
                  realName,
                  castFixed(realName, wrapped, aryKey),
                  aryKey
                )

            result = castCap(realName, result)
            result = castCurry(realName, result, aryKey)
            return false
          }
        })
        return !result
      })

      result || (result = wrapped)
      if (result == func) {
        result = forceCurry
          ? curry(result, 1)
          : function() {
              return func.apply(this, arguments)
            }
      }
      result.convert = createConverter(realName, func)
      result.placeholder = func.placeholder = placeholder

      return result
    }

    /*--------------------------------------------------------------------------*/

    if (!isObj) {
      return wrap(name, func, defaultHolder)
    }
    var _ = func

    // Convert methods by ary cap.
    var pairs = []
    each(aryMethodKeys, function(aryKey) {
      each(_mapping.aryMethod[aryKey], function(key) {
        var func = _[_mapping.remap[key] || key]
        if (func) {
          pairs.push([key, wrap(key, func, _)])
        }
      })
    })

    // Convert remaining methods.
    each(keys(_), function(key) {
      var func = _[key]
      if (typeof func == "function") {
        var length = pairs.length
        while (length--) {
          if (pairs[length][0] == key) {
            return
          }
        }
        func.convert = createConverter(key, func)
        pairs.push([key, func])
      }
    })

    // Assign to `_` leaving `_.prototype` unchanged to allow chaining.
    each(pairs, function(pair) {
      _[pair[0]] = pair[1]
    })

    _.convert = convertLib
    _.placeholder = _

    // Assign aliases.
    each(keys(_), function(key) {
      each(_mapping.realToAlias[key] || [], function(alias) {
        _[alias] = _[key]
      })
    })

    return _
  }

  var _baseConvert = baseConvert

  var _ = lodash_min.runInContext()
  var fp = _baseConvert(_, _)
  var fp_1 = fp.find
  var fp_2 = fp.isUndefined
  var fp_3 = fp.split
  var fp_4 = fp.max
  var fp_5 = fp.last
  var fp_6 = fp.union
  var fp_7 = fp.reduce
  var fp_8 = fp.isObject
  var fp_9 = fp.cloneDeep
  var fp_10 = fp.some
  var fp_11 = fp.isArray
  var fp_12 = fp.map
  var fp_13 = fp.filter
  var fp_14 = fp.keys
  var fp_15 = fp.isFunction
  var fp_16 = fp.isEmpty
  var fp_17 = fp.countBy
  var fp_18 = fp.join
  var fp_19 = fp.includes
  var fp_20 = fp.flatten
  var fp_21 = fp.constant
  var fp_22 = fp.first
  var fp_23 = fp.intersection
  var fp_24 = fp.take
  var fp_25 = fp.has
  var fp_26 = fp.mapValues
  var fp_27 = fp.isString
  var fp_28 = fp.isBoolean
  var fp_29 = fp.isNull
  var fp_30 = fp.isNumber
  var fp_31 = fp.isObjectLike
  var fp_32 = fp.isDate
  var fp_33 = fp.clone
  var fp_34 = fp.values
  var fp_35 = fp.keyBy
  var fp_36 = fp.isNaN
  var fp_37 = fp.isInteger
  var fp_38 = fp.toNumber

  // Found this seed-based random generator somewhere
  // Based on The Central Randomizer 1.3 (C) 1997 by Paul Houle (houle@msc.cornell.edu)

  var seed = 1

  /**
   * return a random number based on a seed
   * @param seed
   * @returns {number}
   */
  function getNextValue() {
    seed = (seed * 9301 + 49297) % 233280
    return seed / 233280.0
  }

  function setSeed(_seed_) {
    seed = _seed_
  }

  var randomFromSeed = {
    nextValue: getNextValue,
    seed: setSeed,
  }

  var ORIGINAL =
    "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-"
  var alphabet
  var previousSeed

  var shuffled

  function reset() {
    shuffled = false
  }

  function setCharacters(_alphabet_) {
    if (!_alphabet_) {
      if (alphabet !== ORIGINAL) {
        alphabet = ORIGINAL
        reset()
      }
      return
    }

    if (_alphabet_ === alphabet) {
      return
    }

    if (_alphabet_.length !== ORIGINAL.length) {
      throw new Error(
        "Custom alphabet for shortid must be " +
          ORIGINAL.length +
          " unique characters. You submitted " +
          _alphabet_.length +
          " characters: " +
          _alphabet_
      )
    }

    var unique = _alphabet_.split("").filter(function(item, ind, arr) {
      return ind !== arr.lastIndexOf(item)
    })

    if (unique.length) {
      throw new Error(
        "Custom alphabet for shortid must be " +
          ORIGINAL.length +
          " unique characters. These characters were not unique: " +
          unique.join(", ")
      )
    }

    alphabet = _alphabet_
    reset()
  }

  function characters(_alphabet_) {
    setCharacters(_alphabet_)
    return alphabet
  }

  function setSeed$1(seed) {
    randomFromSeed.seed(seed)
    if (previousSeed !== seed) {
      reset()
      previousSeed = seed
    }
  }

  function shuffle() {
    if (!alphabet) {
      setCharacters(ORIGINAL)
    }

    var sourceArray = alphabet.split("")
    var targetArray = []
    var r = randomFromSeed.nextValue()
    var characterIndex

    while (sourceArray.length > 0) {
      r = randomFromSeed.nextValue()
      characterIndex = Math.floor(r * sourceArray.length)
      targetArray.push(sourceArray.splice(characterIndex, 1)[0])
    }
    return targetArray.join("")
  }

  function getShuffled() {
    if (shuffled) {
      return shuffled
    }
    shuffled = shuffle()
    return shuffled
  }

  /**
   * lookup shuffled letter
   * @param index
   * @returns {string}
   */
  function lookup(index) {
    var alphabetShuffled = getShuffled()
    return alphabetShuffled[index]
  }

  function get() {
    return alphabet || ORIGINAL
  }

  var alphabet_1 = {
    get: get,
    characters: characters,
    seed: setSeed$1,
    lookup: lookup,
    shuffled: getShuffled,
  }

  var crypto = typeof window === "object" && (window.crypto || window.msCrypto) // IE 11 uses window.msCrypto

  var randomByte

  if (!crypto || !crypto.getRandomValues) {
    randomByte = function(size) {
      var bytes = []
      for (var i = 0; i < size; i++) {
        bytes.push(Math.floor(Math.random() * 256))
      }
      return bytes
    }
  } else {
    randomByte = function(size) {
      return crypto.getRandomValues(new Uint8Array(size))
    }
  }

  var randomByteBrowser = randomByte

  var format_browser = function(random, alphabet, size) {
    var mask = (2 << (Math.log(alphabet.length - 1) / Math.LN2)) - 1
    var step = -~((1.6 * mask * size) / alphabet.length)
    var id = ""

    while (true) {
      var i = step
      var bytes = random(i)
      while (i--) {
        id += alphabet[bytes[i] & mask] || ""
        if (id.length === +size) return id
      }
    }
  }

  function generate(number) {
    var loopCounter = 0
    var done

    var str = ""

    while (!done) {
      str = str + format_browser(randomByteBrowser, alphabet_1.get(), 1)
      done = number < Math.pow(16, loopCounter + 1)
      loopCounter++
    }
    return str
  }

  var generate_1 = generate

  // Ignore all milliseconds before a certain time to reduce the size of the date entropy without sacrificing uniqueness.
  // This number should be updated every year or so to keep the generated id short.
  // To regenerate `new Date() - 0` and bump the version. Always bump the version!
  var REDUCE_TIME = 1567752802062

  // don't change unless we change the algos or REDUCE_TIME
  // must be an integer and less than 16
  var version = 7

  // Counter is used when shortid is called multiple times in one second.
  var counter

  // Remember the last time shortid was called in case counter is needed.
  var previousSeconds

  /**
   * Generate unique id
   * Returns string id
   */
  function build(clusterWorkerId) {
    var str = ""

    var seconds = Math.floor((Date.now() - REDUCE_TIME) * 0.001)

    if (seconds === previousSeconds) {
      counter++
    } else {
      counter = 0
      previousSeconds = seconds
    }

    str = str + generate_1(version)
    str = str + generate_1(clusterWorkerId)
    if (counter > 0) {
      str = str + generate_1(counter)
    }
    str = str + generate_1(seconds)
    return str
  }

  var build_1 = build

  function isShortId(id) {
    if (!id || typeof id !== "string" || id.length < 6) {
      return false
    }

    var nonAlphabetic = new RegExp(
      "[^" + alphabet_1.get().replace(/[|\\{}()[\]^$+*?.-]/g, "\\$&") + "]"
    )
    return !nonAlphabetic.test(id)
  }

  var isValid = isShortId

  var lib = createCommonjsModule(function(module) {
    // if you are using cluster or multiple servers use this to make each instance
    // has a unique value for worker
    // Note: I don't know if this is automatically set when using third
    // party cluster solutions such as pm2.
    var clusterWorkerId = 0

    /**
     * Set the seed.
     * Highly recommended if you don't want people to try to figure out your id schema.
     * exposed as shortid.seed(int)
     * @param seed Integer value to seed the random alphabet.  ALWAYS USE THE SAME SEED or you might get overlaps.
     */
    function seed(seedValue) {
      alphabet_1.seed(seedValue)
      return module.exports
    }

    /**
     * Set the cluster worker or machine id
     * exposed as shortid.worker(int)
     * @param workerId worker must be positive integer.  Number less than 16 is recommended.
     * returns shortid module so it can be chained.
     */
    function worker(workerId) {
      clusterWorkerId = workerId
      return module.exports
    }

    /**
     *
     * sets new characters to use in the alphabet
     * returns the shuffled alphabet
     */
    function characters(newCharacters) {
      if (newCharacters !== undefined) {
        alphabet_1.characters(newCharacters)
      }

      return alphabet_1.shuffled()
    }

    /**
     * Generate unique id
     * Returns string id
     */
    function generate() {
      return build_1(clusterWorkerId)
    }

    // Export all other functions as properties of the generate function
    module.exports = generate
    module.exports.generate = generate
    module.exports.seed = seed
    module.exports.worker = worker
    module.exports.characters = characters
    module.exports.isValid = isValid
  })
  var lib_1 = lib.generate
  var lib_2 = lib.seed
  var lib_3 = lib.worker
  var lib_4 = lib.characters
  var lib_5 = lib.isValid

  var shortid = lib
  var shortid_1 = shortid.generate

  var lodash = createCommonjsModule(function(module, exports) {
    ;(function() {
      /** Used as a safe reference for `undefined` in pre-ES5 environments. */
      var undefined$1

      /** Used as the semantic version number. */
      var VERSION = "4.17.15"

      /** Used as the size to enable large array optimizations. */
      var LARGE_ARRAY_SIZE = 200

      /** Error message constants. */
      var CORE_ERROR_TEXT =
          "Unsupported core-js use. Try https://npms.io/search?q=ponyfill.",
        FUNC_ERROR_TEXT = "Expected a function"

      /** Used to stand-in for `undefined` hash values. */
      var HASH_UNDEFINED = "__lodash_hash_undefined__"

      /** Used as the maximum memoize cache size. */
      var MAX_MEMOIZE_SIZE = 500

      /** Used as the internal argument placeholder. */
      var PLACEHOLDER = "__lodash_placeholder__"

      /** Used to compose bitmasks for cloning. */
      var CLONE_DEEP_FLAG = 1,
        CLONE_FLAT_FLAG = 2,
        CLONE_SYMBOLS_FLAG = 4

      /** Used to compose bitmasks for value comparisons. */
      var COMPARE_PARTIAL_FLAG = 1,
        COMPARE_UNORDERED_FLAG = 2

      /** Used to compose bitmasks for function metadata. */
      var WRAP_BIND_FLAG = 1,
        WRAP_BIND_KEY_FLAG = 2,
        WRAP_CURRY_BOUND_FLAG = 4,
        WRAP_CURRY_FLAG = 8,
        WRAP_CURRY_RIGHT_FLAG = 16,
        WRAP_PARTIAL_FLAG = 32,
        WRAP_PARTIAL_RIGHT_FLAG = 64,
        WRAP_ARY_FLAG = 128,
        WRAP_REARG_FLAG = 256,
        WRAP_FLIP_FLAG = 512

      /** Used as default options for `_.truncate`. */
      var DEFAULT_TRUNC_LENGTH = 30,
        DEFAULT_TRUNC_OMISSION = "..."

      /** Used to detect hot functions by number of calls within a span of milliseconds. */
      var HOT_COUNT = 800,
        HOT_SPAN = 16

      /** Used to indicate the type of lazy iteratees. */
      var LAZY_FILTER_FLAG = 1,
        LAZY_MAP_FLAG = 2,
        LAZY_WHILE_FLAG = 3

      /** Used as references for various `Number` constants. */
      var INFINITY = 1 / 0,
        MAX_SAFE_INTEGER = 9007199254740991,
        MAX_INTEGER = 1.7976931348623157e308,
        NAN = 0 / 0

      /** Used as references for the maximum length and index of an array. */
      var MAX_ARRAY_LENGTH = 4294967295,
        MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1,
        HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1

      /** Used to associate wrap methods with their bit flags. */
      var wrapFlags = [
        ["ary", WRAP_ARY_FLAG],
        ["bind", WRAP_BIND_FLAG],
        ["bindKey", WRAP_BIND_KEY_FLAG],
        ["curry", WRAP_CURRY_FLAG],
        ["curryRight", WRAP_CURRY_RIGHT_FLAG],
        ["flip", WRAP_FLIP_FLAG],
        ["partial", WRAP_PARTIAL_FLAG],
        ["partialRight", WRAP_PARTIAL_RIGHT_FLAG],
        ["rearg", WRAP_REARG_FLAG],
      ]

      /** `Object#toString` result references. */
      var argsTag = "[object Arguments]",
        arrayTag = "[object Array]",
        asyncTag = "[object AsyncFunction]",
        boolTag = "[object Boolean]",
        dateTag = "[object Date]",
        domExcTag = "[object DOMException]",
        errorTag = "[object Error]",
        funcTag = "[object Function]",
        genTag = "[object GeneratorFunction]",
        mapTag = "[object Map]",
        numberTag = "[object Number]",
        nullTag = "[object Null]",
        objectTag = "[object Object]",
        promiseTag = "[object Promise]",
        proxyTag = "[object Proxy]",
        regexpTag = "[object RegExp]",
        setTag = "[object Set]",
        stringTag = "[object String]",
        symbolTag = "[object Symbol]",
        undefinedTag = "[object Undefined]",
        weakMapTag = "[object WeakMap]",
        weakSetTag = "[object WeakSet]"

      var arrayBufferTag = "[object ArrayBuffer]",
        dataViewTag = "[object DataView]",
        float32Tag = "[object Float32Array]",
        float64Tag = "[object Float64Array]",
        int8Tag = "[object Int8Array]",
        int16Tag = "[object Int16Array]",
        int32Tag = "[object Int32Array]",
        uint8Tag = "[object Uint8Array]",
        uint8ClampedTag = "[object Uint8ClampedArray]",
        uint16Tag = "[object Uint16Array]",
        uint32Tag = "[object Uint32Array]"

      /** Used to match empty string literals in compiled template source. */
      var reEmptyStringLeading = /\b__p \+= '';/g,
        reEmptyStringMiddle = /\b(__p \+=) '' \+/g,
        reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g

      /** Used to match HTML entities and HTML characters. */
      var reEscapedHtml = /&(?:amp|lt|gt|quot|#39);/g,
        reUnescapedHtml = /[&<>"']/g,
        reHasEscapedHtml = RegExp(reEscapedHtml.source),
        reHasUnescapedHtml = RegExp(reUnescapedHtml.source)

      /** Used to match template delimiters. */
      var reEscape = /<%-([\s\S]+?)%>/g,
        reEvaluate = /<%([\s\S]+?)%>/g,
        reInterpolate = /<%=([\s\S]+?)%>/g

      /** Used to match property names within property paths. */
      var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/,
        reIsPlainProp = /^\w*$/,
        rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g

      /**
       * Used to match `RegExp`
       * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).
       */
      var reRegExpChar = /[\\^$.*+?()[\]{}|]/g,
        reHasRegExpChar = RegExp(reRegExpChar.source)

      /** Used to match leading and trailing whitespace. */
      var reTrim = /^\s+|\s+$/g,
        reTrimStart = /^\s+/,
        reTrimEnd = /\s+$/

      /** Used to match wrap detail comments. */
      var reWrapComment = /\{(?:\n\/\* \[wrapped with .+\] \*\/)?\n?/,
        reWrapDetails = /\{\n\/\* \[wrapped with (.+)\] \*/,
        reSplitDetails = /,? & /

      /** Used to match words composed of alphanumeric characters. */
      var reAsciiWord = /[^\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\x7f]+/g

      /** Used to match backslashes in property paths. */
      var reEscapeChar = /\\(\\)?/g

      /**
       * Used to match
       * [ES template delimiters](http://ecma-international.org/ecma-262/7.0/#sec-template-literal-lexical-components).
       */
      var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g

      /** Used to match `RegExp` flags from their coerced string values. */
      var reFlags = /\w*$/

      /** Used to detect bad signed hexadecimal string values. */
      var reIsBadHex = /^[-+]0x[0-9a-f]+$/i

      /** Used to detect binary string values. */
      var reIsBinary = /^0b[01]+$/i

      /** Used to detect host constructors (Safari). */
      var reIsHostCtor = /^\[object .+?Constructor\]$/

      /** Used to detect octal string values. */
      var reIsOctal = /^0o[0-7]+$/i

      /** Used to detect unsigned integer values. */
      var reIsUint = /^(?:0|[1-9]\d*)$/

      /** Used to match Latin Unicode letters (excluding mathematical operators). */
      var reLatin = /[\xc0-\xd6\xd8-\xf6\xf8-\xff\u0100-\u017f]/g

      /** Used to ensure capturing order of template delimiters. */
      var reNoMatch = /($^)/

      /** Used to match unescaped characters in compiled string literals. */
      var reUnescapedString = /['\n\r\u2028\u2029\\]/g

      /** Used to compose unicode character classes. */
      var rsAstralRange = "\\ud800-\\udfff",
        rsComboMarksRange = "\\u0300-\\u036f",
        reComboHalfMarksRange = "\\ufe20-\\ufe2f",
        rsComboSymbolsRange = "\\u20d0-\\u20ff",
        rsComboRange =
          rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange,
        rsDingbatRange = "\\u2700-\\u27bf",
        rsLowerRange = "a-z\\xdf-\\xf6\\xf8-\\xff",
        rsMathOpRange = "\\xac\\xb1\\xd7\\xf7",
        rsNonCharRange = "\\x00-\\x2f\\x3a-\\x40\\x5b-\\x60\\x7b-\\xbf",
        rsPunctuationRange = "\\u2000-\\u206f",
        rsSpaceRange =
          " \\t\\x0b\\f\\xa0\\ufeff\\n\\r\\u2028\\u2029\\u1680\\u180e\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200a\\u202f\\u205f\\u3000",
        rsUpperRange = "A-Z\\xc0-\\xd6\\xd8-\\xde",
        rsVarRange = "\\ufe0e\\ufe0f",
        rsBreakRange =
          rsMathOpRange + rsNonCharRange + rsPunctuationRange + rsSpaceRange

      /** Used to compose unicode capture groups. */
      var rsApos = "['\u2019]",
        rsAstral = "[" + rsAstralRange + "]",
        rsBreak = "[" + rsBreakRange + "]",
        rsCombo = "[" + rsComboRange + "]",
        rsDigits = "\\d+",
        rsDingbat = "[" + rsDingbatRange + "]",
        rsLower = "[" + rsLowerRange + "]",
        rsMisc =
          "[^" +
          rsAstralRange +
          rsBreakRange +
          rsDigits +
          rsDingbatRange +
          rsLowerRange +
          rsUpperRange +
          "]",
        rsFitz = "\\ud83c[\\udffb-\\udfff]",
        rsModifier = "(?:" + rsCombo + "|" + rsFitz + ")",
        rsNonAstral = "[^" + rsAstralRange + "]",
        rsRegional = "(?:\\ud83c[\\udde6-\\uddff]){2}",
        rsSurrPair = "[\\ud800-\\udbff][\\udc00-\\udfff]",
        rsUpper = "[" + rsUpperRange + "]",
        rsZWJ = "\\u200d"

      /** Used to compose unicode regexes. */
      var rsMiscLower = "(?:" + rsLower + "|" + rsMisc + ")",
        rsMiscUpper = "(?:" + rsUpper + "|" + rsMisc + ")",
        rsOptContrLower = "(?:" + rsApos + "(?:d|ll|m|re|s|t|ve))?",
        rsOptContrUpper = "(?:" + rsApos + "(?:D|LL|M|RE|S|T|VE))?",
        reOptMod = rsModifier + "?",
        rsOptVar = "[" + rsVarRange + "]?",
        rsOptJoin =
          "(?:" +
          rsZWJ +
          "(?:" +
          [rsNonAstral, rsRegional, rsSurrPair].join("|") +
          ")" +
          rsOptVar +
          reOptMod +
          ")*",
        rsOrdLower = "\\d*(?:1st|2nd|3rd|(?![123])\\dth)(?=\\b|[A-Z_])",
        rsOrdUpper = "\\d*(?:1ST|2ND|3RD|(?![123])\\dTH)(?=\\b|[a-z_])",
        rsSeq = rsOptVar + reOptMod + rsOptJoin,
        rsEmoji =
          "(?:" + [rsDingbat, rsRegional, rsSurrPair].join("|") + ")" + rsSeq,
        rsSymbol =
          "(?:" +
          [
            rsNonAstral + rsCombo + "?",
            rsCombo,
            rsRegional,
            rsSurrPair,
            rsAstral,
          ].join("|") +
          ")"

      /** Used to match apostrophes. */
      var reApos = RegExp(rsApos, "g")

      /**
       * Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks) and
       * [combining diacritical marks for symbols](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks_for_Symbols).
       */
      var reComboMark = RegExp(rsCombo, "g")

      /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */
      var reUnicode = RegExp(
        rsFitz + "(?=" + rsFitz + ")|" + rsSymbol + rsSeq,
        "g"
      )

      /** Used to match complex or compound words. */
      var reUnicodeWord = RegExp(
        [
          rsUpper +
            "?" +
            rsLower +
            "+" +
            rsOptContrLower +
            "(?=" +
            [rsBreak, rsUpper, "$"].join("|") +
            ")",
          rsMiscUpper +
            "+" +
            rsOptContrUpper +
            "(?=" +
            [rsBreak, rsUpper + rsMiscLower, "$"].join("|") +
            ")",
          rsUpper + "?" + rsMiscLower + "+" + rsOptContrLower,
          rsUpper + "+" + rsOptContrUpper,
          rsOrdUpper,
          rsOrdLower,
          rsDigits,
          rsEmoji,
        ].join("|"),
        "g"
      )

      /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */
      var reHasUnicode = RegExp(
        "[" + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + "]"
      )

      /** Used to detect strings that need a more robust regexp to match words. */
      var reHasUnicodeWord = /[a-z][A-Z]|[A-Z]{2}[a-z]|[0-9][a-zA-Z]|[a-zA-Z][0-9]|[^a-zA-Z0-9 ]/

      /** Used to assign default `context` object properties. */
      var contextProps = [
        "Array",
        "Buffer",
        "DataView",
        "Date",
        "Error",
        "Float32Array",
        "Float64Array",
        "Function",
        "Int8Array",
        "Int16Array",
        "Int32Array",
        "Map",
        "Math",
        "Object",
        "Promise",
        "RegExp",
        "Set",
        "String",
        "Symbol",
        "TypeError",
        "Uint8Array",
        "Uint8ClampedArray",
        "Uint16Array",
        "Uint32Array",
        "WeakMap",
        "_",
        "clearTimeout",
        "isFinite",
        "parseInt",
        "setTimeout",
      ]

      /** Used to make template sourceURLs easier to identify. */
      var templateCounter = -1

      /** Used to identify `toStringTag` values of typed arrays. */
      var typedArrayTags = {}
      typedArrayTags[float32Tag] = typedArrayTags[float64Tag] = typedArrayTags[
        int8Tag
      ] = typedArrayTags[int16Tag] = typedArrayTags[int32Tag] = typedArrayTags[
        uint8Tag
      ] = typedArrayTags[uint8ClampedTag] = typedArrayTags[
        uint16Tag
      ] = typedArrayTags[uint32Tag] = true
      typedArrayTags[argsTag] = typedArrayTags[arrayTag] = typedArrayTags[
        arrayBufferTag
      ] = typedArrayTags[boolTag] = typedArrayTags[
        dataViewTag
      ] = typedArrayTags[dateTag] = typedArrayTags[errorTag] = typedArrayTags[
        funcTag
      ] = typedArrayTags[mapTag] = typedArrayTags[numberTag] = typedArrayTags[
        objectTag
      ] = typedArrayTags[regexpTag] = typedArrayTags[setTag] = typedArrayTags[
        stringTag
      ] = typedArrayTags[weakMapTag] = false

      /** Used to identify `toStringTag` values supported by `_.clone`. */
      var cloneableTags = {}
      cloneableTags[argsTag] = cloneableTags[arrayTag] = cloneableTags[
        arrayBufferTag
      ] = cloneableTags[dataViewTag] = cloneableTags[boolTag] = cloneableTags[
        dateTag
      ] = cloneableTags[float32Tag] = cloneableTags[float64Tag] = cloneableTags[
        int8Tag
      ] = cloneableTags[int16Tag] = cloneableTags[int32Tag] = cloneableTags[
        mapTag
      ] = cloneableTags[numberTag] = cloneableTags[objectTag] = cloneableTags[
        regexpTag
      ] = cloneableTags[setTag] = cloneableTags[stringTag] = cloneableTags[
        symbolTag
      ] = cloneableTags[uint8Tag] = cloneableTags[
        uint8ClampedTag
      ] = cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true
      cloneableTags[errorTag] = cloneableTags[funcTag] = cloneableTags[
        weakMapTag
      ] = false

      /** Used to map Latin Unicode letters to basic Latin letters. */
      var deburredLetters = {
        // Latin-1 Supplement block.
        À: "A",
        Á: "A",
        Â: "A",
        Ã: "A",
        Ä: "A",
        Å: "A",
        à: "a",
        á: "a",
        â: "a",
        ã: "a",
        ä: "a",
        å: "a",
        Ç: "C",
        ç: "c",
        Ð: "D",
        ð: "d",
        È: "E",
        É: "E",
        Ê: "E",
        Ë: "E",
        è: "e",
        é: "e",
        ê: "e",
        ë: "e",
        Ì: "I",
        Í: "I",
        Î: "I",
        Ï: "I",
        ì: "i",
        í: "i",
        î: "i",
        ï: "i",
        Ñ: "N",
        ñ: "n",
        Ò: "O",
        Ó: "O",
        Ô: "O",
        Õ: "O",
        Ö: "O",
        Ø: "O",
        ò: "o",
        ó: "o",
        ô: "o",
        õ: "o",
        ö: "o",
        ø: "o",
        Ù: "U",
        Ú: "U",
        Û: "U",
        Ü: "U",
        ù: "u",
        ú: "u",
        û: "u",
        ü: "u",
        Ý: "Y",
        ý: "y",
        ÿ: "y",
        Æ: "Ae",
        æ: "ae",
        Þ: "Th",
        þ: "th",
        ß: "ss",
        // Latin Extended-A block.
        Ā: "A",
        Ă: "A",
        Ą: "A",
        ā: "a",
        ă: "a",
        ą: "a",
        Ć: "C",
        Ĉ: "C",
        Ċ: "C",
        Č: "C",
        ć: "c",
        ĉ: "c",
        ċ: "c",
        č: "c",
        Ď: "D",
        Đ: "D",
        ď: "d",
        đ: "d",
        Ē: "E",
        Ĕ: "E",
        Ė: "E",
        Ę: "E",
        Ě: "E",
        ē: "e",
        ĕ: "e",
        ė: "e",
        ę: "e",
        ě: "e",
        Ĝ: "G",
        Ğ: "G",
        Ġ: "G",
        Ģ: "G",
        ĝ: "g",
        ğ: "g",
        ġ: "g",
        ģ: "g",
        Ĥ: "H",
        Ħ: "H",
        ĥ: "h",
        ħ: "h",
        Ĩ: "I",
        Ī: "I",
        Ĭ: "I",
        Į: "I",
        İ: "I",
        ĩ: "i",
        ī: "i",
        ĭ: "i",
        į: "i",
        ı: "i",
        Ĵ: "J",
        ĵ: "j",
        Ķ: "K",
        ķ: "k",
        ĸ: "k",
        Ĺ: "L",
        Ļ: "L",
        Ľ: "L",
        Ŀ: "L",
        Ł: "L",
        ĺ: "l",
        ļ: "l",
        ľ: "l",
        ŀ: "l",
        ł: "l",
        Ń: "N",
        Ņ: "N",
        Ň: "N",
        Ŋ: "N",
        ń: "n",
        ņ: "n",
        ň: "n",
        ŋ: "n",
        Ō: "O",
        Ŏ: "O",
        Ő: "O",
        ō: "o",
        ŏ: "o",
        ő: "o",
        Ŕ: "R",
        Ŗ: "R",
        Ř: "R",
        ŕ: "r",
        ŗ: "r",
        ř: "r",
        Ś: "S",
        Ŝ: "S",
        Ş: "S",
        Š: "S",
        ś: "s",
        ŝ: "s",
        ş: "s",
        š: "s",
        Ţ: "T",
        Ť: "T",
        Ŧ: "T",
        ţ: "t",
        ť: "t",
        ŧ: "t",
        Ũ: "U",
        Ū: "U",
        Ŭ: "U",
        Ů: "U",
        Ű: "U",
        Ų: "U",
        ũ: "u",
        ū: "u",
        ŭ: "u",
        ů: "u",
        ű: "u",
        ų: "u",
        Ŵ: "W",
        ŵ: "w",
        Ŷ: "Y",
        ŷ: "y",
        Ÿ: "Y",
        Ź: "Z",
        Ż: "Z",
        Ž: "Z",
        ź: "z",
        ż: "z",
        ž: "z",
        IJ: "IJ",
        ij: "ij",
        Œ: "Oe",
        œ: "oe",
        ʼn: "'n",
        ſ: "s",
      }

      /** Used to map characters to HTML entities. */
      var htmlEscapes = {
        "&": "&amp;",
        "<": "&lt;",
        ">": "&gt;",
        '"': "&quot;",
        "'": "&#39;",
      }

      /** Used to map HTML entities to characters. */
      var htmlUnescapes = {
        "&amp;": "&",
        "&lt;": "<",
        "&gt;": ">",
        "&quot;": '"',
        "&#39;": "'",
      }

      /** Used to escape characters for inclusion in compiled string literals. */
      var stringEscapes = {
        "\\": "\\",
        "'": "'",
        "\n": "n",
        "\r": "r",
        "\u2028": "u2028",
        "\u2029": "u2029",
      }

      /** Built-in method references without a dependency on `root`. */
      var freeParseFloat = parseFloat,
        freeParseInt = parseInt

      /** Detect free variable `global` from Node.js. */
      var freeGlobal =
        typeof commonjsGlobal == "object" &&
        commonjsGlobal &&
        commonjsGlobal.Object === Object &&
        commonjsGlobal

      /** Detect free variable `self`. */
      var freeSelf =
        typeof self == "object" && self && self.Object === Object && self

      /** Used as a reference to the global object. */
      var root = freeGlobal || freeSelf || Function("return this")()

      /** Detect free variable `exports`. */
      var freeExports = exports && !exports.nodeType && exports

      /** Detect free variable `module`. */
      var freeModule =
        freeExports &&
        "object" == "object" &&
        module &&
        !module.nodeType &&
        module

      /** Detect the popular CommonJS extension `module.exports`. */
      var moduleExports = freeModule && freeModule.exports === freeExports

      /** Detect free variable `process` from Node.js. */
      var freeProcess = moduleExports && freeGlobal.process

      /** Used to access faster Node.js helpers. */
      var nodeUtil = (function() {
        try {
          // Use `util.types` for Node.js 10+.
          var types =
            freeModule && freeModule.require && freeModule.require("util").types

          if (types) {
            return types
          }

          // Legacy `process.binding('util')` for Node.js < 10.
          return (
            freeProcess && freeProcess.binding && freeProcess.binding("util")
          )
        } catch (e) {}
      })()

      /* Node.js helper references. */
      var nodeIsArrayBuffer = nodeUtil && nodeUtil.isArrayBuffer,
        nodeIsDate = nodeUtil && nodeUtil.isDate,
        nodeIsMap = nodeUtil && nodeUtil.isMap,
        nodeIsRegExp = nodeUtil && nodeUtil.isRegExp,
        nodeIsSet = nodeUtil && nodeUtil.isSet,
        nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray

      /*--------------------------------------------------------------------------*/

      /**
       * A faster alternative to `Function#apply`, this function invokes `func`
       * with the `this` binding of `thisArg` and the arguments of `args`.
       *
       * @private
       * @param {Function} func The function to invoke.
       * @param {*} thisArg The `this` binding of `func`.
       * @param {Array} args The arguments to invoke `func` with.
       * @returns {*} Returns the result of `func`.
       */
      function apply(func, thisArg, args) {
        switch (args.length) {
          case 0:
            return func.call(thisArg)
          case 1:
            return func.call(thisArg, args[0])
          case 2:
            return func.call(thisArg, args[0], args[1])
          case 3:
            return func.call(thisArg, args[0], args[1], args[2])
        }
        return func.apply(thisArg, args)
      }

      /**
       * A specialized version of `baseAggregator` for arrays.
       *
       * @private
       * @param {Array} [array] The array to iterate over.
       * @param {Function} setter The function to set `accumulator` values.
       * @param {Function} iteratee The iteratee to transform keys.
       * @param {Object} accumulator The initial aggregated object.
       * @returns {Function} Returns `accumulator`.
       */
      function arrayAggregator(array, setter, iteratee, accumulator) {
        var index = -1,
          length = array == null ? 0 : array.length

        while (++index < length) {
          var value = array[index]
          setter(accumulator, value, iteratee(value), array)
        }
        return accumulator
      }

      /**
       * A specialized version of `_.forEach` for arrays without support for
       * iteratee shorthands.
       *
       * @private
       * @param {Array} [array] The array to iterate over.
       * @param {Function} iteratee The function invoked per iteration.
       * @returns {Array} Returns `array`.
       */
      function arrayEach(array, iteratee) {
        var index = -1,
          length = array == null ? 0 : array.length

        while (++index < length) {
          if (iteratee(array[index], index, array) === false) {
            break
          }
        }
        return array
      }

      /**
       * A specialized version of `_.forEachRight` for arrays without support for
       * iteratee shorthands.
       *
       * @private
       * @param {Array} [array] The array to iterate over.
       * @param {Function} iteratee The function invoked per iteration.
       * @returns {Array} Returns `array`.
       */
      function arrayEachRight(array, iteratee) {
        var length = array == null ? 0 : array.length

        while (length--) {
          if (iteratee(array[length], length, array) === false) {
            break
          }
        }
        return array
      }

      /**
       * A specialized version of `_.every` for arrays without support for
       * iteratee shorthands.
       *
       * @private
       * @param {Array} [array] The array to iterate over.
       * @param {Function} predicate The function invoked per iteration.
       * @returns {boolean} Returns `true` if all elements pass the predicate check,
       *  else `false`.
       */
      function arrayEvery(array, predicate) {
        var index = -1,
          length = array == null ? 0 : array.length

        while (++index < length) {
          if (!predicate(array[index], index, array)) {
            return false
          }
        }
        return true
      }

      /**
       * A specialized version of `_.filter` for arrays without support for
       * iteratee shorthands.
       *
       * @private
       * @param {Array} [array] The array to iterate over.
       * @param {Function} predicate The function invoked per iteration.
       * @returns {Array} Returns the new filtered array.
       */
      function arrayFilter(array, predicate) {
        var index = -1,
          length = array == null ? 0 : array.length,
          resIndex = 0,
          result = []

        while (++index < length) {
          var value = array[index]
          if (predicate(value, index, array)) {
            result[resIndex++] = value
          }
        }
        return result
      }

      /**
       * A specialized version of `_.includes` for arrays without support for
       * specifying an index to search from.
       *
       * @private
       * @param {Array} [array] The array to inspect.
       * @param {*} target The value to search for.
       * @returns {boolean} Returns `true` if `target` is found, else `false`.
       */
      function arrayIncludes(array, value) {
        var length = array == null ? 0 : array.length
        return !!length && baseIndexOf(array, value, 0) > -1
      }

      /**
       * This function is like `arrayIncludes` except that it accepts a comparator.
       *
       * @private
       * @param {Array} [array] The array to inspect.
       * @param {*} target The value to search for.
       * @param {Function} comparator The comparator invoked per element.
       * @returns {boolean} Returns `true` if `target` is found, else `false`.
       */
      function arrayIncludesWith(array, value, comparator) {
        var index = -1,
          length = array == null ? 0 : array.length

        while (++index < length) {
          if (comparator(value, array[index])) {
            return true
          }
        }
        return false
      }

      /**
       * A specialized version of `_.map` for arrays without support for iteratee
       * shorthands.
       *
       * @private
       * @param {Array} [array] The array to iterate over.
       * @param {Function} iteratee The function invoked per iteration.
       * @returns {Array} Returns the new mapped array.
       */
      function arrayMap(array, iteratee) {
        var index = -1,
          length = array == null ? 0 : array.length,
          result = Array(length)

        while (++index < length) {
          result[index] = iteratee(array[index], index, array)
        }
        return result
      }

      /**
       * Appends the elements of `values` to `array`.
       *
       * @private
       * @param {Array} array The array to modify.
       * @param {Array} values The values to append.
       * @returns {Array} Returns `array`.
       */
      function arrayPush(array, values) {
        var index = -1,
          length = values.length,
          offset = array.length

        while (++index < length) {
          array[offset + index] = values[index]
        }
        return array
      }

      /**
       * A specialized version of `_.reduce` for arrays without support for
       * iteratee shorthands.
       *
       * @private
       * @param {Array} [array] The array to iterate over.
       * @param {Function} iteratee The function invoked per iteration.
       * @param {*} [accumulator] The initial value.
       * @param {boolean} [initAccum] Specify using the first element of `array` as
       *  the initial value.
       * @returns {*} Returns the accumulated value.
       */
      function arrayReduce(array, iteratee, accumulator, initAccum) {
        var index = -1,
          length = array == null ? 0 : array.length

        if (initAccum && length) {
          accumulator = array[++index]
        }
        while (++index < length) {
          accumulator = iteratee(accumulator, array[index], index, array)
        }
        return accumulator
      }

      /**
       * A specialized version of `_.reduceRight` for arrays without support for
       * iteratee shorthands.
       *
       * @private
       * @param {Array} [array] The array to iterate over.
       * @param {Function} iteratee The function invoked per iteration.
       * @param {*} [accumulator] The initial value.
       * @param {boolean} [initAccum] Specify using the last element of `array` as
       *  the initial value.
       * @returns {*} Returns the accumulated value.
       */
      function arrayReduceRight(array, iteratee, accumulator, initAccum) {
        var length = array == null ? 0 : array.length
        if (initAccum && length) {
          accumulator = array[--length]
        }
        while (length--) {
          accumulator = iteratee(accumulator, array[length], length, array)
        }
        return accumulator
      }

      /**
       * A specialized version of `_.some` for arrays without support for iteratee
       * shorthands.
       *
       * @private
       * @param {Array} [array] The array to iterate over.
       * @param {Function} predicate The function invoked per iteration.
       * @returns {boolean} Returns `true` if any element passes the predicate check,
       *  else `false`.
       */
      function arraySome(array, predicate) {
        var index = -1,
          length = array == null ? 0 : array.length

        while (++index < length) {
          if (predicate(array[index], index, array)) {
            return true
          }
        }
        return false
      }

      /**
       * Gets the size of an ASCII `string`.
       *
       * @private
       * @param {string} string The string inspect.
       * @returns {number} Returns the string size.
       */
      var asciiSize = baseProperty("length")

      /**
       * Converts an ASCII `string` to an array.
       *
       * @private
       * @param {string} string The string to convert.
       * @returns {Array} Returns the converted array.
       */
      function asciiToArray(string) {
        return string.split("")
      }

      /**
       * Splits an ASCII `string` into an array of its words.
       *
       * @private
       * @param {string} The string to inspect.
       * @returns {Array} Returns the words of `string`.
       */
      function asciiWords(string) {
        return string.match(reAsciiWord) || []
      }

      /**
       * The base implementation of methods like `_.findKey` and `_.findLastKey`,
       * without support for iteratee shorthands, which iterates over `collection`
       * using `eachFunc`.
       *
       * @private
       * @param {Array|Object} collection The collection to inspect.
       * @param {Function} predicate The function invoked per iteration.
       * @param {Function} eachFunc The function to iterate over `collection`.
       * @returns {*} Returns the found element or its key, else `undefined`.
       */
      function baseFindKey(collection, predicate, eachFunc) {
        var result
        eachFunc(collection, function(value, key, collection) {
          if (predicate(value, key, collection)) {
            result = key
            return false
          }
        })
        return result
      }

      /**
       * The base implementation of `_.findIndex` and `_.findLastIndex` without
       * support for iteratee shorthands.
       *
       * @private
       * @param {Array} array The array to inspect.
       * @param {Function} predicate The function invoked per iteration.
       * @param {number} fromIndex The index to search from.
       * @param {boolean} [fromRight] Specify iterating from right to left.
       * @returns {number} Returns the index of the matched value, else `-1`.
       */
      function baseFindIndex(array, predicate, fromIndex, fromRight) {
        var length = array.length,
          index = fromIndex + (fromRight ? 1 : -1)

        while (fromRight ? index-- : ++index < length) {
          if (predicate(array[index], index, array)) {
            return index
          }
        }
        return -1
      }

      /**
       * The base implementation of `_.indexOf` without `fromIndex` bounds checks.
       *
       * @private
       * @param {Array} array The array to inspect.
       * @param {*} value The value to search for.
       * @param {number} fromIndex The index to search from.
       * @returns {number} Returns the index of the matched value, else `-1`.
       */
      function baseIndexOf(array, value, fromIndex) {
        return value === value
          ? strictIndexOf(array, value, fromIndex)
          : baseFindIndex(array, baseIsNaN, fromIndex)
      }

      /**
       * This function is like `baseIndexOf` except that it accepts a comparator.
       *
       * @private
       * @param {Array} array The array to inspect.
       * @param {*} value The value to search for.
       * @param {number} fromIndex The index to search from.
       * @param {Function} comparator The comparator invoked per element.
       * @returns {number} Returns the index of the matched value, else `-1`.
       */
      function baseIndexOfWith(array, value, fromIndex, comparator) {
        var index = fromIndex - 1,
          length = array.length

        while (++index < length) {
          if (comparator(array[index], value)) {
            return index
          }
        }
        return -1
      }

      /**
       * The base implementation of `_.isNaN` without support for number objects.
       *
       * @private
       * @param {*} value The value to check.
       * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.
       */
      function baseIsNaN(value) {
        return value !== value
      }

      /**
       * The base implementation of `_.mean` and `_.meanBy` without support for
       * iteratee shorthands.
       *
       * @private
       * @param {Array} array The array to iterate over.
       * @param {Function} iteratee The function invoked per iteration.
       * @returns {number} Returns the mean.
       */
      function baseMean(array, iteratee) {
        var length = array == null ? 0 : array.length
        return length ? baseSum(array, iteratee) / length : NAN
      }

      /**
       * The base implementation of `_.property` without support for deep paths.
       *
       * @private
       * @param {string} key The key of the property to get.
       * @returns {Function} Returns the new accessor function.
       */
      function baseProperty(key) {
        return function(object) {
          return object == null ? undefined$1 : object[key]
        }
      }

      /**
       * The base implementation of `_.propertyOf` without support for deep paths.
       *
       * @private
       * @param {Object} object The object to query.
       * @returns {Function} Returns the new accessor function.
       */
      function basePropertyOf(object) {
        return function(key) {
          return object == null ? undefined$1 : object[key]
        }
      }

      /**
       * The base implementation of `_.reduce` and `_.reduceRight`, without support
       * for iteratee shorthands, which iterates over `collection` using `eachFunc`.
       *
       * @private
       * @param {Array|Object} collection The collection to iterate over.
       * @param {Function} iteratee The function invoked per iteration.
       * @param {*} accumulator The initial value.
       * @param {boolean} initAccum Specify using the first or last element of
       *  `collection` as the initial value.
       * @param {Function} eachFunc The function to iterate over `collection`.
       * @returns {*} Returns the accumulated value.
       */
      function baseReduce(
        collection,
        iteratee,
        accumulator,
        initAccum,
        eachFunc
      ) {
        eachFunc(collection, function(value, index, collection) {
          accumulator = initAccum
            ? ((initAccum = false), value)
            : iteratee(accumulator, value, index, collection)
        })
        return accumulator
      }

      /**
       * The base implementation of `_.sortBy` which uses `comparer` to define the
       * sort order of `array` and replaces criteria objects with their corresponding
       * values.
       *
       * @private
       * @param {Array} array The array to sort.
       * @param {Function} comparer The function to define sort order.
       * @returns {Array} Returns `array`.
       */
      function baseSortBy(array, comparer) {
        var length = array.length

        array.sort(comparer)
        while (length--) {
          array[length] = array[length].value
        }
        return array
      }

      /**
       * The base implementation of `_.sum` and `_.sumBy` without support for
       * iteratee shorthands.
       *
       * @private
       * @param {Array} array The array to iterate over.
       * @param {Function} iteratee The function invoked per iteration.
       * @returns {number} Returns the sum.
       */
      function baseSum(array, iteratee) {
        var result,
          index = -1,
          length = array.length

        while (++index < length) {
          var current = iteratee(array[index])
          if (current !== undefined$1) {
            result = result === undefined$1 ? current : result + current
          }
        }
        return result
      }

      /**
       * The base implementation of `_.times` without support for iteratee shorthands
       * or max array length checks.
       *
       * @private
       * @param {number} n The number of times to invoke `iteratee`.
       * @param {Function} iteratee The function invoked per iteration.
       * @returns {Array} Returns the array of results.
       */
      function baseTimes(n, iteratee) {
        var index = -1,
          result = Array(n)

        while (++index < n) {
          result[index] = iteratee(index)
        }
        return result
      }

      /**
       * The base implementation of `_.toPairs` and `_.toPairsIn` which creates an array
       * of key-value pairs for `object` corresponding to the property names of `props`.
       *
       * @private
       * @param {Object} object The object to query.
       * @param {Array} props The property names to get values for.
       * @returns {Object} Returns the key-value pairs.
       */
      function baseToPairs(object, props) {
        return arrayMap(props, function(key) {
          return [key, object[key]]
        })
      }

      /**
       * The base implementation of `_.unary` without support for storing metadata.
       *
       * @private
       * @param {Function} func The function to cap arguments for.
       * @returns {Function} Returns the new capped function.
       */
      function baseUnary(func) {
        return function(value) {
          return func(value)
        }
      }

      /**
       * The base implementation of `_.values` and `_.valuesIn` which creates an
       * array of `object` property values corresponding to the property names
       * of `props`.
       *
       * @private
       * @param {Object} object The object to query.
       * @param {Array} props The property names to get values for.
       * @returns {Object} Returns the array of property values.
       */
      function baseValues(object, props) {
        return arrayMap(props, function(key) {
          return object[key]
        })
      }

      /**
       * Checks if a `cache` value for `key` exists.
       *
       * @private
       * @param {Object} cache The cache to query.
       * @param {string} key The key of the entry to check.
       * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
       */
      function cacheHas(cache, key) {
        return cache.has(key)
      }

      /**
       * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol
       * that is not found in the character symbols.
       *
       * @private
       * @param {Array} strSymbols The string symbols to inspect.
       * @param {Array} chrSymbols The character symbols to find.
       * @returns {number} Returns the index of the first unmatched string symbol.
       */
      function charsStartIndex(strSymbols, chrSymbols) {
        var index = -1,
          length = strSymbols.length

        while (
          ++index < length &&
          baseIndexOf(chrSymbols, strSymbols[index], 0) > -1
        ) {}
        return index
      }

      /**
       * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol
       * that is not found in the character symbols.
       *
       * @private
       * @param {Array} strSymbols The string symbols to inspect.
       * @param {Array} chrSymbols The character symbols to find.
       * @returns {number} Returns the index of the last unmatched string symbol.
       */
      function charsEndIndex(strSymbols, chrSymbols) {
        var index = strSymbols.length

        while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}
        return index
      }

      /**
       * Gets the number of `placeholder` occurrences in `array`.
       *
       * @private
       * @param {Array} array The array to inspect.
       * @param {*} placeholder The placeholder to search for.
       * @returns {number} Returns the placeholder count.
       */
      function countHolders(array, placeholder) {
        var length = array.length,
          result = 0

        while (length--) {
          if (array[length] === placeholder) {
            ++result
          }
        }
        return result
      }

      /**
       * Used by `_.deburr` to convert Latin-1 Supplement and Latin Extended-A
       * letters to basic Latin letters.
       *
       * @private
       * @param {string} letter The matched letter to deburr.
       * @returns {string} Returns the deburred letter.
       */
      var deburrLetter = basePropertyOf(deburredLetters)

      /**
       * Used by `_.escape` to convert characters to HTML entities.
       *
       * @private
       * @param {string} chr The matched character to escape.
       * @returns {string} Returns the escaped character.
       */
      var escapeHtmlChar = basePropertyOf(htmlEscapes)

      /**
       * Used by `_.template` to escape characters for inclusion in compiled string literals.
       *
       * @private
       * @param {string} chr The matched character to escape.
       * @returns {string} Returns the escaped character.
       */
      function escapeStringChar(chr) {
        return "\\" + stringEscapes[chr]
      }

      /**
       * Gets the value at `key` of `object`.
       *
       * @private
       * @param {Object} [object] The object to query.
       * @param {string} key The key of the property to get.
       * @returns {*} Returns the property value.
       */
      function getValue(object, key) {
        return object == null ? undefined$1 : object[key]
      }

      /**
       * Checks if `string` contains Unicode symbols.
       *
       * @private
       * @param {string} string The string to inspect.
       * @returns {boolean} Returns `true` if a symbol is found, else `false`.
       */
      function hasUnicode(string) {
        return reHasUnicode.test(string)
      }

      /**
       * Checks if `string` contains a word composed of Unicode symbols.
       *
       * @private
       * @param {string} string The string to inspect.
       * @returns {boolean} Returns `true` if a word is found, else `false`.
       */
      function hasUnicodeWord(string) {
        return reHasUnicodeWord.test(string)
      }

      /**
       * Converts `iterator` to an array.
       *
       * @private
       * @param {Object} iterator The iterator to convert.
       * @returns {Array} Returns the converted array.
       */
      function iteratorToArray(iterator) {
        var data,
          result = []

        while (!(data = iterator.next()).done) {
          result.push(data.value)
        }
        return result
      }

      /**
       * Converts `map` to its key-value pairs.
       *
       * @private
       * @param {Object} map The map to convert.
       * @returns {Array} Returns the key-value pairs.
       */
      function mapToArray(map) {
        var index = -1,
          result = Array(map.size)

        map.forEach(function(value, key) {
          result[++index] = [key, value]
        })
        return result
      }

      /**
       * Creates a unary function that invokes `func` with its argument transformed.
       *
       * @private
       * @param {Function} func The function to wrap.
       * @param {Function} transform The argument transform.
       * @returns {Function} Returns the new function.
       */
      function overArg(func, transform) {
        return function(arg) {
          return func(transform(arg))
        }
      }

      /**
       * Replaces all `placeholder` elements in `array` with an internal placeholder
       * and returns an array of their indexes.
       *
       * @private
       * @param {Array} array The array to modify.
       * @param {*} placeholder The placeholder to replace.
       * @returns {Array} Returns the new array of placeholder indexes.
       */
      function replaceHolders(array, placeholder) {
        var index = -1,
          length = array.length,
          resIndex = 0,
          result = []

        while (++index < length) {
          var value = array[index]
          if (value === placeholder || value === PLACEHOLDER) {
            array[index] = PLACEHOLDER
            result[resIndex++] = index
          }
        }
        return result
      }

      /**
       * Converts `set` to an array of its values.
       *
       * @private
       * @param {Object} set The set to convert.
       * @returns {Array} Returns the values.
       */
      function setToArray(set) {
        var index = -1,
          result = Array(set.size)

        set.forEach(function(value) {
          result[++index] = value
        })
        return result
      }

      /**
       * Converts `set` to its value-value pairs.
       *
       * @private
       * @param {Object} set The set to convert.
       * @returns {Array} Returns the value-value pairs.
       */
      function setToPairs(set) {
        var index = -1,
          result = Array(set.size)

        set.forEach(function(value) {
          result[++index] = [value, value]
        })
        return result
      }

      /**
       * A specialized version of `_.indexOf` which performs strict equality
       * comparisons of values, i.e. `===`.
       *
       * @private
       * @param {Array} array The array to inspect.
       * @param {*} value The value to search for.
       * @param {number} fromIndex The index to search from.
       * @returns {number} Returns the index of the matched value, else `-1`.
       */
      function strictIndexOf(array, value, fromIndex) {
        var index = fromIndex - 1,
          length = array.length

        while (++index < length) {
          if (array[index] === value) {
            return index
          }
        }
        return -1
      }

      /**
       * A specialized version of `_.lastIndexOf` which performs strict equality
       * comparisons of values, i.e. `===`.
       *
       * @private
       * @param {Array} array The array to inspect.
       * @param {*} value The value to search for.
       * @param {number} fromIndex The index to search from.
       * @returns {number} Returns the index of the matched value, else `-1`.
       */
      function strictLastIndexOf(array, value, fromIndex) {
        var index = fromIndex + 1
        while (index--) {
          if (array[index] === value) {
            return index
          }
        }
        return index
      }

      /**
       * Gets the number of symbols in `string`.
       *
       * @private
       * @param {string} string The string to inspect.
       * @returns {number} Returns the string size.
       */
      function stringSize(string) {
        return hasUnicode(string) ? unicodeSize(string) : asciiSize(string)
      }

      /**
       * Converts `string` to an array.
       *
       * @private
       * @param {string} string The string to convert.
       * @returns {Array} Returns the converted array.
       */
      function stringToArray(string) {
        return hasUnicode(string)
          ? unicodeToArray(string)
          : asciiToArray(string)
      }

      /**
       * Used by `_.unescape` to convert HTML entities to characters.
       *
       * @private
       * @param {string} chr The matched character to unescape.
       * @returns {string} Returns the unescaped character.
       */
      var unescapeHtmlChar = basePropertyOf(htmlUnescapes)

      /**
       * Gets the size of a Unicode `string`.
       *
       * @private
       * @param {string} string The string inspect.
       * @returns {number} Returns the string size.
       */
      function unicodeSize(string) {
        var result = (reUnicode.lastIndex = 0)
        while (reUnicode.test(string)) {
          ++result
        }
        return result
      }

      /**
       * Converts a Unicode `string` to an array.
       *
       * @private
       * @param {string} string The string to convert.
       * @returns {Array} Returns the converted array.
       */
      function unicodeToArray(string) {
        return string.match(reUnicode) || []
      }

      /**
       * Splits a Unicode `string` into an array of its words.
       *
       * @private
       * @param {string} The string to inspect.
       * @returns {Array} Returns the words of `string`.
       */
      function unicodeWords(string) {
        return string.match(reUnicodeWord) || []
      }

      /*--------------------------------------------------------------------------*/

      /**
       * Create a new pristine `lodash` function using the `context` object.
       *
       * @static
       * @memberOf _
       * @since 1.1.0
       * @category Util
       * @param {Object} [context=root] The context object.
       * @returns {Function} Returns a new `lodash` function.
       * @example
       *
       * _.mixin({ 'foo': _.constant('foo') });
       *
       * var lodash = _.runInContext();
       * lodash.mixin({ 'bar': lodash.constant('bar') });
       *
       * _.isFunction(_.foo);
       * // => true
       * _.isFunction(_.bar);
       * // => false
       *
       * lodash.isFunction(lodash.foo);
       * // => false
       * lodash.isFunction(lodash.bar);
       * // => true
       *
       * // Create a suped-up `defer` in Node.js.
       * var defer = _.runInContext({ 'setTimeout': setImmediate }).defer;
       */
      var runInContext = function runInContext(context) {
        context =
          context == null
            ? root
            : _.defaults(root.Object(), context, _.pick(root, contextProps))

        /** Built-in constructor references. */
        var Array = context.Array,
          Date = context.Date,
          Error = context.Error,
          Function = context.Function,
          Math = context.Math,
          Object = context.Object,
          RegExp = context.RegExp,
          String = context.String,
          TypeError = context.TypeError

        /** Used for built-in method references. */
        var arrayProto = Array.prototype,
          funcProto = Function.prototype,
          objectProto = Object.prototype

        /** Used to detect overreaching core-js shims. */
        var coreJsData = context["__core-js_shared__"]

        /** Used to resolve the decompiled source of functions. */
        var funcToString = funcProto.toString

        /** Used to check objects for own properties. */
        var hasOwnProperty = objectProto.hasOwnProperty

        /** Used to generate unique IDs. */
        var idCounter = 0

        /** Used to detect methods masquerading as native. */
        var maskSrcKey = (function() {
          var uid = /[^.]+$/.exec(
            (coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO) || ""
          )
          return uid ? "Symbol(src)_1." + uid : ""
        })()

        /**
         * Used to resolve the
         * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
         * of values.
         */
        var nativeObjectToString = objectProto.toString

        /** Used to infer the `Object` constructor. */
        var objectCtorString = funcToString.call(Object)

        /** Used to restore the original `_` reference in `_.noConflict`. */
        var oldDash = root._

        /** Used to detect if a method is native. */
        var reIsNative = RegExp(
          "^" +
            funcToString
              .call(hasOwnProperty)
              .replace(reRegExpChar, "\\$&")
              .replace(
                /hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g,
                "$1.*?"
              ) +
            "$"
        )

        /** Built-in value references. */
        var Buffer = moduleExports ? context.Buffer : undefined$1,
          Symbol = context.Symbol,
          Uint8Array = context.Uint8Array,
          allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined$1,
          getPrototype = overArg(Object.getPrototypeOf, Object),
          objectCreate = Object.create,
          propertyIsEnumerable = objectProto.propertyIsEnumerable,
          splice = arrayProto.splice,
          spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined$1,
          symIterator = Symbol ? Symbol.iterator : undefined$1,
          symToStringTag = Symbol ? Symbol.toStringTag : undefined$1

        var defineProperty = (function() {
          try {
            var func = getNative(Object, "defineProperty")
            func({}, "", {})
            return func
          } catch (e) {}
        })()

        /** Mocked built-ins. */
        var ctxClearTimeout =
            context.clearTimeout !== root.clearTimeout && context.clearTimeout,
          ctxNow = Date && Date.now !== root.Date.now && Date.now,
          ctxSetTimeout =
            context.setTimeout !== root.setTimeout && context.setTimeout

        /* Built-in method references for those with the same name as other `lodash` methods. */
        var nativeCeil = Math.ceil,
          nativeFloor = Math.floor,
          nativeGetSymbols = Object.getOwnPropertySymbols,
          nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined$1,
          nativeIsFinite = context.isFinite,
          nativeJoin = arrayProto.join,
          nativeKeys = overArg(Object.keys, Object),
          nativeMax = Math.max,
          nativeMin = Math.min,
          nativeNow = Date.now,
          nativeParseInt = context.parseInt,
          nativeRandom = Math.random,
          nativeReverse = arrayProto.reverse

        /* Built-in method references that are verified to be native. */
        var DataView = getNative(context, "DataView"),
          Map = getNative(context, "Map"),
          Promise = getNative(context, "Promise"),
          Set = getNative(context, "Set"),
          WeakMap = getNative(context, "WeakMap"),
          nativeCreate = getNative(Object, "create")

        /** Used to store function metadata. */
        var metaMap = WeakMap && new WeakMap()

        /** Used to lookup unminified function names. */
        var realNames = {}

        /** Used to detect maps, sets, and weakmaps. */
        var dataViewCtorString = toSource(DataView),
          mapCtorString = toSource(Map),
          promiseCtorString = toSource(Promise),
          setCtorString = toSource(Set),
          weakMapCtorString = toSource(WeakMap)

        /** Used to convert symbols to primitives and strings. */
        var symbolProto = Symbol ? Symbol.prototype : undefined$1,
          symbolValueOf = symbolProto ? symbolProto.valueOf : undefined$1,
          symbolToString = symbolProto ? symbolProto.toString : undefined$1

        /*------------------------------------------------------------------------*/

        /**
         * Creates a `lodash` object which wraps `value` to enable implicit method
         * chain sequences. Methods that operate on and return arrays, collections,
         * and functions can be chained together. Methods that retrieve a single value
         * or may return a primitive value will automatically end the chain sequence
         * and return the unwrapped value. Otherwise, the value must be unwrapped
         * with `_#value`.
         *
         * Explicit chain sequences, which must be unwrapped with `_#value`, may be
         * enabled using `_.chain`.
         *
         * The execution of chained methods is lazy, that is, it's deferred until
         * `_#value` is implicitly or explicitly called.
         *
         * Lazy evaluation allows several methods to support shortcut fusion.
         * Shortcut fusion is an optimization to merge iteratee calls; this avoids
         * the creation of intermediate arrays and can greatly reduce the number of
         * iteratee executions. Sections of a chain sequence qualify for shortcut
         * fusion if the section is applied to an array and iteratees accept only
         * one argument. The heuristic for whether a section qualifies for shortcut
         * fusion is subject to change.
         *
         * Chaining is supported in custom builds as long as the `_#value` method is
         * directly or indirectly included in the build.
         *
         * In addition to lodash methods, wrappers have `Array` and `String` methods.
         *
         * The wrapper `Array` methods are:
         * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift`
         *
         * The wrapper `String` methods are:
         * `replace` and `split`
         *
         * The wrapper methods that support shortcut fusion are:
         * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`,
         * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`,
         * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray`
         *
         * The chainable wrapper methods are:
         * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`,
         * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`,
         * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`,
         * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`,
         * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`,
         * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`,
         * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`,
         * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`,
         * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`,
         * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`,
         * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`,
         * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`,
         * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`,
         * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`,
         * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`,
         * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`,
         * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`,
         * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`,
         * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`,
         * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`,
         * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`,
         * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`,
         * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`,
         * `zipObject`, `zipObjectDeep`, and `zipWith`
         *
         * The wrapper methods that are **not** chainable by default are:
         * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`,
         * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`,
         * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`,
         * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`,
         * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`,
         * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`,
         * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`,
         * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`,
         * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`,
         * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`,
         * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`,
         * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`,
         * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`,
         * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`,
         * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`,
         * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`,
         * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`,
         * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`,
         * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`,
         * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`,
         * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`,
         * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`,
         * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`,
         * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`,
         * `upperFirst`, `value`, and `words`
         *
         * @name _
         * @constructor
         * @category Seq
         * @param {*} value The value to wrap in a `lodash` instance.
         * @returns {Object} Returns the new `lodash` wrapper instance.
         * @example
         *
         * function square(n) {
         *   return n * n;
         * }
         *
         * var wrapped = _([1, 2, 3]);
         *
         * // Returns an unwrapped value.
         * wrapped.reduce(_.add);
         * // => 6
         *
         * // Returns a wrapped value.
         * var squares = wrapped.map(square);
         *
         * _.isArray(squares);
         * // => false
         *
         * _.isArray(squares.value());
         * // => true
         */
        function lodash(value) {
          if (
            isObjectLike(value) &&
            !isArray(value) &&
            !(value instanceof LazyWrapper)
          ) {
            if (value instanceof LodashWrapper) {
              return value
            }
            if (hasOwnProperty.call(value, "__wrapped__")) {
              return wrapperClone(value)
            }
          }
          return new LodashWrapper(value)
        }

        /**
         * The base implementation of `_.create` without support for assigning
         * properties to the created object.
         *
         * @private
         * @param {Object} proto The object to inherit from.
         * @returns {Object} Returns the new object.
         */
        var baseCreate = (function() {
          function object() {}
          return function(proto) {
            if (!isObject(proto)) {
              return {}
            }
            if (objectCreate) {
              return objectCreate(proto)
            }
            object.prototype = proto
            var result = new object()
            object.prototype = undefined$1
            return result
          }
        })()

        /**
         * The function whose prototype chain sequence wrappers inherit from.
         *
         * @private
         */
        function baseLodash() {
          // No operation performed.
        }

        /**
         * The base constructor for creating `lodash` wrapper objects.
         *
         * @private
         * @param {*} value The value to wrap.
         * @param {boolean} [chainAll] Enable explicit method chain sequences.
         */
        function LodashWrapper(value, chainAll) {
          this.__wrapped__ = value
          this.__actions__ = []
          this.__chain__ = !!chainAll
          this.__index__ = 0
          this.__values__ = undefined$1
        }

        /**
         * By default, the template delimiters used by lodash are like those in
         * embedded Ruby (ERB) as well as ES2015 template strings. Change the
         * following template settings to use alternative delimiters.
         *
         * @static
         * @memberOf _
         * @type {Object}
         */
        lodash.templateSettings = {
          /**
           * Used to detect `data` property values to be HTML-escaped.
           *
           * @memberOf _.templateSettings
           * @type {RegExp}
           */
          escape: reEscape,

          /**
           * Used to detect code to be evaluated.
           *
           * @memberOf _.templateSettings
           * @type {RegExp}
           */
          evaluate: reEvaluate,

          /**
           * Used to detect `data` property values to inject.
           *
           * @memberOf _.templateSettings
           * @type {RegExp}
           */
          interpolate: reInterpolate,

          /**
           * Used to reference the data object in the template text.
           *
           * @memberOf _.templateSettings
           * @type {string}
           */
          variable: "",

          /**
           * Used to import variables into the compiled template.
           *
           * @memberOf _.templateSettings
           * @type {Object}
           */
          imports: {
            /**
             * A reference to the `lodash` function.
             *
             * @memberOf _.templateSettings.imports
             * @type {Function}
             */
            _: lodash,
          },
        }

        // Ensure wrappers are instances of `baseLodash`.
        lodash.prototype = baseLodash.prototype
        lodash.prototype.constructor = lodash

        LodashWrapper.prototype = baseCreate(baseLodash.prototype)
        LodashWrapper.prototype.constructor = LodashWrapper

        /*------------------------------------------------------------------------*/

        /**
         * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation.
         *
         * @private
         * @constructor
         * @param {*} value The value to wrap.
         */
        function LazyWrapper(value) {
          this.__wrapped__ = value
          this.__actions__ = []
          this.__dir__ = 1
          this.__filtered__ = false
          this.__iteratees__ = []
          this.__takeCount__ = MAX_ARRAY_LENGTH
          this.__views__ = []
        }

        /**
         * Creates a clone of the lazy wrapper object.
         *
         * @private
         * @name clone
         * @memberOf LazyWrapper
         * @returns {Object} Returns the cloned `LazyWrapper` object.
         */
        function lazyClone() {
          var result = new LazyWrapper(this.__wrapped__)
          result.__actions__ = copyArray(this.__actions__)
          result.__dir__ = this.__dir__
          result.__filtered__ = this.__filtered__
          result.__iteratees__ = copyArray(this.__iteratees__)
          result.__takeCount__ = this.__takeCount__
          result.__views__ = copyArray(this.__views__)
          return result
        }

        /**
         * Reverses the direction of lazy iteration.
         *
         * @private
         * @name reverse
         * @memberOf LazyWrapper
         * @returns {Object} Returns the new reversed `LazyWrapper` object.
         */
        function lazyReverse() {
          if (this.__filtered__) {
            var result = new LazyWrapper(this)
            result.__dir__ = -1
            result.__filtered__ = true
          } else {
            result = this.clone()
            result.__dir__ *= -1
          }
          return result
        }

        /**
         * Extracts the unwrapped value from its lazy wrapper.
         *
         * @private
         * @name value
         * @memberOf LazyWrapper
         * @returns {*} Returns the unwrapped value.
         */
        function lazyValue() {
          var array = this.__wrapped__.value(),
            dir = this.__dir__,
            isArr = isArray(array),
            isRight = dir < 0,
            arrLength = isArr ? array.length : 0,
            view = getView(0, arrLength, this.__views__),
            start = view.start,
            end = view.end,
            length = end - start,
            index = isRight ? end : start - 1,
            iteratees = this.__iteratees__,
            iterLength = iteratees.length,
            resIndex = 0,
            takeCount = nativeMin(length, this.__takeCount__)

          if (
            !isArr ||
            (!isRight && arrLength == length && takeCount == length)
          ) {
            return baseWrapperValue(array, this.__actions__)
          }
          var result = []

          outer: while (length-- && resIndex < takeCount) {
            index += dir

            var iterIndex = -1,
              value = array[index]

            while (++iterIndex < iterLength) {
              var data = iteratees[iterIndex],
                iteratee = data.iteratee,
                type = data.type,
                computed = iteratee(value)

              if (type == LAZY_MAP_FLAG) {
                value = computed
              } else if (!computed) {
                if (type == LAZY_FILTER_FLAG) {
                  continue outer
                } else {
                  break outer
                }
              }
            }
            result[resIndex++] = value
          }
          return result
        }

        // Ensure `LazyWrapper` is an instance of `baseLodash`.
        LazyWrapper.prototype = baseCreate(baseLodash.prototype)
        LazyWrapper.prototype.constructor = LazyWrapper

        /*------------------------------------------------------------------------*/

        /**
         * Creates a hash object.
         *
         * @private
         * @constructor
         * @param {Array} [entries] The key-value pairs to cache.
         */
        function Hash(entries) {
          var index = -1,
            length = entries == null ? 0 : entries.length

          this.clear()
          while (++index < length) {
            var entry = entries[index]
            this.set(entry[0], entry[1])
          }
        }

        /**
         * Removes all key-value entries from the hash.
         *
         * @private
         * @name clear
         * @memberOf Hash
         */
        function hashClear() {
          this.__data__ = nativeCreate ? nativeCreate(null) : {}
          this.size = 0
        }

        /**
         * Removes `key` and its value from the hash.
         *
         * @private
         * @name delete
         * @memberOf Hash
         * @param {Object} hash The hash to modify.
         * @param {string} key The key of the value to remove.
         * @returns {boolean} Returns `true` if the entry was removed, else `false`.
         */
        function hashDelete(key) {
          var result = this.has(key) && delete this.__data__[key]
          this.size -= result ? 1 : 0
          return result
        }

        /**
         * Gets the hash value for `key`.
         *
         * @private
         * @name get
         * @memberOf Hash
         * @param {string} key The key of the value to get.
         * @returns {*} Returns the entry value.
         */
        function hashGet(key) {
          var data = this.__data__
          if (nativeCreate) {
            var result = data[key]
            return result === HASH_UNDEFINED ? undefined$1 : result
          }
          return hasOwnProperty.call(data, key) ? data[key] : undefined$1
        }

        /**
         * Checks if a hash value for `key` exists.
         *
         * @private
         * @name has
         * @memberOf Hash
         * @param {string} key The key of the entry to check.
         * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
         */
        function hashHas(key) {
          var data = this.__data__
          return nativeCreate
            ? data[key] !== undefined$1
            : hasOwnProperty.call(data, key)
        }

        /**
         * Sets the hash `key` to `value`.
         *
         * @private
         * @name set
         * @memberOf Hash
         * @param {string} key The key of the value to set.
         * @param {*} value The value to set.
         * @returns {Object} Returns the hash instance.
         */
        function hashSet(key, value) {
          var data = this.__data__
          this.size += this.has(key) ? 0 : 1
          data[key] =
            nativeCreate && value === undefined$1 ? HASH_UNDEFINED : value
          return this
        }

        // Add methods to `Hash`.
        Hash.prototype.clear = hashClear
        Hash.prototype["delete"] = hashDelete
        Hash.prototype.get = hashGet
        Hash.prototype.has = hashHas
        Hash.prototype.set = hashSet

        /*------------------------------------------------------------------------*/

        /**
         * Creates an list cache object.
         *
         * @private
         * @constructor
         * @param {Array} [entries] The key-value pairs to cache.
         */
        function ListCache(entries) {
          var index = -1,
            length = entries == null ? 0 : entries.length

          this.clear()
          while (++index < length) {
            var entry = entries[index]
            this.set(entry[0], entry[1])
          }
        }

        /**
         * Removes all key-value entries from the list cache.
         *
         * @private
         * @name clear
         * @memberOf ListCache
         */
        function listCacheClear() {
          this.__data__ = []
          this.size = 0
        }

        /**
         * Removes `key` and its value from the list cache.
         *
         * @private
         * @name delete
         * @memberOf ListCache
         * @param {string} key The key of the value to remove.
         * @returns {boolean} Returns `true` if the entry was removed, else `false`.
         */
        function listCacheDelete(key) {
          var data = this.__data__,
            index = assocIndexOf(data, key)

          if (index < 0) {
            return false
          }
          var lastIndex = data.length - 1
          if (index == lastIndex) {
            data.pop()
          } else {
            splice.call(data, index, 1)
          }
          --this.size
          return true
        }

        /**
         * Gets the list cache value for `key`.
         *
         * @private
         * @name get
         * @memberOf ListCache
         * @param {string} key The key of the value to get.
         * @returns {*} Returns the entry value.
         */
        function listCacheGet(key) {
          var data = this.__data__,
            index = assocIndexOf(data, key)

          return index < 0 ? undefined$1 : data[index][1]
        }

        /**
         * Checks if a list cache value for `key` exists.
         *
         * @private
         * @name has
         * @memberOf ListCache
         * @param {string} key The key of the entry to check.
         * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
         */
        function listCacheHas(key) {
          return assocIndexOf(this.__data__, key) > -1
        }

        /**
         * Sets the list cache `key` to `value`.
         *
         * @private
         * @name set
         * @memberOf ListCache
         * @param {string} key The key of the value to set.
         * @param {*} value The value to set.
         * @returns {Object} Returns the list cache instance.
         */
        function listCacheSet(key, value) {
          var data = this.__data__,
            index = assocIndexOf(data, key)

          if (index < 0) {
            ++this.size
            data.push([key, value])
          } else {
            data[index][1] = value
          }
          return this
        }

        // Add methods to `ListCache`.
        ListCache.prototype.clear = listCacheClear
        ListCache.prototype["delete"] = listCacheDelete
        ListCache.prototype.get = listCacheGet
        ListCache.prototype.has = listCacheHas
        ListCache.prototype.set = listCacheSet

        /*------------------------------------------------------------------------*/

        /**
         * Creates a map cache object to store key-value pairs.
         *
         * @private
         * @constructor
         * @param {Array} [entries] The key-value pairs to cache.
         */
        function MapCache(entries) {
          var index = -1,
            length = entries == null ? 0 : entries.length

          this.clear()
          while (++index < length) {
            var entry = entries[index]
            this.set(entry[0], entry[1])
          }
        }

        /**
         * Removes all key-value entries from the map.
         *
         * @private
         * @name clear
         * @memberOf MapCache
         */
        function mapCacheClear() {
          this.size = 0
          this.__data__ = {
            hash: new Hash(),
            map: new (Map || ListCache)(),
            string: new Hash(),
          }
        }

        /**
         * Removes `key` and its value from the map.
         *
         * @private
         * @name delete
         * @memberOf MapCache
         * @param {string} key The key of the value to remove.
         * @returns {boolean} Returns `true` if the entry was removed, else `false`.
         */
        function mapCacheDelete(key) {
          var result = getMapData(this, key)["delete"](key)
          this.size -= result ? 1 : 0
          return result
        }

        /**
         * Gets the map value for `key`.
         *
         * @private
         * @name get
         * @memberOf MapCache
         * @param {string} key The key of the value to get.
         * @returns {*} Returns the entry value.
         */
        function mapCacheGet(key) {
          return getMapData(this, key).get(key)
        }

        /**
         * Checks if a map value for `key` exists.
         *
         * @private
         * @name has
         * @memberOf MapCache
         * @param {string} key The key of the entry to check.
         * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
         */
        function mapCacheHas(key) {
          return getMapData(this, key).has(key)
        }

        /**
         * Sets the map `key` to `value`.
         *
         * @private
         * @name set
         * @memberOf MapCache
         * @param {string} key The key of the value to set.
         * @param {*} value The value to set.
         * @returns {Object} Returns the map cache instance.
         */
        function mapCacheSet(key, value) {
          var data = getMapData(this, key),
            size = data.size

          data.set(key, value)
          this.size += data.size == size ? 0 : 1
          return this
        }

        // Add methods to `MapCache`.
        MapCache.prototype.clear = mapCacheClear
        MapCache.prototype["delete"] = mapCacheDelete
        MapCache.prototype.get = mapCacheGet
        MapCache.prototype.has = mapCacheHas
        MapCache.prototype.set = mapCacheSet

        /*------------------------------------------------------------------------*/

        /**
         *
         * Creates an array cache object to store unique values.
         *
         * @private
         * @constructor
         * @param {Array} [values] The values to cache.
         */
        function SetCache(values) {
          var index = -1,
            length = values == null ? 0 : values.length

          this.__data__ = new MapCache()
          while (++index < length) {
            this.add(values[index])
          }
        }

        /**
         * Adds `value` to the array cache.
         *
         * @private
         * @name add
         * @memberOf SetCache
         * @alias push
         * @param {*} value The value to cache.
         * @returns {Object} Returns the cache instance.
         */
        function setCacheAdd(value) {
          this.__data__.set(value, HASH_UNDEFINED)
          return this
        }

        /**
         * Checks if `value` is in the array cache.
         *
         * @private
         * @name has
         * @memberOf SetCache
         * @param {*} value The value to search for.
         * @returns {number} Returns `true` if `value` is found, else `false`.
         */
        function setCacheHas(value) {
          return this.__data__.has(value)
        }

        // Add methods to `SetCache`.
        SetCache.prototype.add = SetCache.prototype.push = setCacheAdd
        SetCache.prototype.has = setCacheHas

        /*------------------------------------------------------------------------*/

        /**
         * Creates a stack cache object to store key-value pairs.
         *
         * @private
         * @constructor
         * @param {Array} [entries] The key-value pairs to cache.
         */
        function Stack(entries) {
          var data = (this.__data__ = new ListCache(entries))
          this.size = data.size
        }

        /**
         * Removes all key-value entries from the stack.
         *
         * @private
         * @name clear
         * @memberOf Stack
         */
        function stackClear() {
          this.__data__ = new ListCache()
          this.size = 0
        }

        /**
         * Removes `key` and its value from the stack.
         *
         * @private
         * @name delete
         * @memberOf Stack
         * @param {string} key The key of the value to remove.
         * @returns {boolean} Returns `true` if the entry was removed, else `false`.
         */
        function stackDelete(key) {
          var data = this.__data__,
            result = data["delete"](key)

          this.size = data.size
          return result
        }

        /**
         * Gets the stack value for `key`.
         *
         * @private
         * @name get
         * @memberOf Stack
         * @param {string} key The key of the value to get.
         * @returns {*} Returns the entry value.
         */
        function stackGet(key) {
          return this.__data__.get(key)
        }

        /**
         * Checks if a stack value for `key` exists.
         *
         * @private
         * @name has
         * @memberOf Stack
         * @param {string} key The key of the entry to check.
         * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
         */
        function stackHas(key) {
          return this.__data__.has(key)
        }

        /**
         * Sets the stack `key` to `value`.
         *
         * @private
         * @name set
         * @memberOf Stack
         * @param {string} key The key of the value to set.
         * @param {*} value The value to set.
         * @returns {Object} Returns the stack cache instance.
         */
        function stackSet(key, value) {
          var data = this.__data__
          if (data instanceof ListCache) {
            var pairs = data.__data__
            if (!Map || pairs.length < LARGE_ARRAY_SIZE - 1) {
              pairs.push([key, value])
              this.size = ++data.size
              return this
            }
            data = this.__data__ = new MapCache(pairs)
          }
          data.set(key, value)
          this.size = data.size
          return this
        }

        // Add methods to `Stack`.
        Stack.prototype.clear = stackClear
        Stack.prototype["delete"] = stackDelete
        Stack.prototype.get = stackGet
        Stack.prototype.has = stackHas
        Stack.prototype.set = stackSet

        /*------------------------------------------------------------------------*/

        /**
         * Creates an array of the enumerable property names of the array-like `value`.
         *
         * @private
         * @param {*} value The value to query.
         * @param {boolean} inherited Specify returning inherited property names.
         * @returns {Array} Returns the array of property names.
         */
        function arrayLikeKeys(value, inherited) {
          var isArr = isArray(value),
            isArg = !isArr && isArguments(value),
            isBuff = !isArr && !isArg && isBuffer(value),
            isType = !isArr && !isArg && !isBuff && isTypedArray(value),
            skipIndexes = isArr || isArg || isBuff || isType,
            result = skipIndexes ? baseTimes(value.length, String) : [],
            length = result.length

          for (var key in value) {
            if (
              (inherited || hasOwnProperty.call(value, key)) &&
              !(
                skipIndexes &&
                // Safari 9 has enumerable `arguments.length` in strict mode.
                (key == "length" ||
                  // Node.js 0.10 has enumerable non-index properties on buffers.
                  (isBuff && (key == "offset" || key == "parent")) ||
                  // PhantomJS 2 has enumerable non-index properties on typed arrays.
                  (isType &&
                    (key == "buffer" ||
                      key == "byteLength" ||
                      key == "byteOffset")) ||
                  // Skip index properties.
                  isIndex(key, length))
              )
            ) {
              result.push(key)
            }
          }
          return result
        }

        /**
         * A specialized version of `_.sample` for arrays.
         *
         * @private
         * @param {Array} array The array to sample.
         * @returns {*} Returns the random element.
         */
        function arraySample(array) {
          var length = array.length
          return length ? array[baseRandom(0, length - 1)] : undefined$1
        }

        /**
         * A specialized version of `_.sampleSize` for arrays.
         *
         * @private
         * @param {Array} array The array to sample.
         * @param {number} n The number of elements to sample.
         * @returns {Array} Returns the random elements.
         */
        function arraySampleSize(array, n) {
          return shuffleSelf(copyArray(array), baseClamp(n, 0, array.length))
        }

        /**
         * A specialized version of `_.shuffle` for arrays.
         *
         * @private
         * @param {Array} array The array to shuffle.
         * @returns {Array} Returns the new shuffled array.
         */
        function arrayShuffle(array) {
          return shuffleSelf(copyArray(array))
        }

        /**
         * This function is like `assignValue` except that it doesn't assign
         * `undefined` values.
         *
         * @private
         * @param {Object} object The object to modify.
         * @param {string} key The key of the property to assign.
         * @param {*} value The value to assign.
         */
        function assignMergeValue(object, key, value) {
          if (
            (value !== undefined$1 && !eq(object[key], value)) ||
            (value === undefined$1 && !(key in object))
          ) {
            baseAssignValue(object, key, value)
          }
        }

        /**
         * Assigns `value` to `key` of `object` if the existing value is not equivalent
         * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
         * for equality comparisons.
         *
         * @private
         * @param {Object} object The object to modify.
         * @param {string} key The key of the property to assign.
         * @param {*} value The value to assign.
         */
        function assignValue(object, key, value) {
          var objValue = object[key]
          if (
            !(hasOwnProperty.call(object, key) && eq(objValue, value)) ||
            (value === undefined$1 && !(key in object))
          ) {
            baseAssignValue(object, key, value)
          }
        }

        /**
         * Gets the index at which the `key` is found in `array` of key-value pairs.
         *
         * @private
         * @param {Array} array The array to inspect.
         * @param {*} key The key to search for.
         * @returns {number} Returns the index of the matched value, else `-1`.
         */
        function assocIndexOf(array, key) {
          var length = array.length
          while (length--) {
            if (eq(array[length][0], key)) {
              return length
            }
          }
          return -1
        }

        /**
         * Aggregates elements of `collection` on `accumulator` with keys transformed
         * by `iteratee` and values set by `setter`.
         *
         * @private
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} setter The function to set `accumulator` values.
         * @param {Function} iteratee The iteratee to transform keys.
         * @param {Object} accumulator The initial aggregated object.
         * @returns {Function} Returns `accumulator`.
         */
        function baseAggregator(collection, setter, iteratee, accumulator) {
          baseEach(collection, function(value, key, collection) {
            setter(accumulator, value, iteratee(value), collection)
          })
          return accumulator
        }

        /**
         * The base implementation of `_.assign` without support for multiple sources
         * or `customizer` functions.
         *
         * @private
         * @param {Object} object The destination object.
         * @param {Object} source The source object.
         * @returns {Object} Returns `object`.
         */
        function baseAssign(object, source) {
          return object && copyObject(source, keys(source), object)
        }

        /**
         * The base implementation of `_.assignIn` without support for multiple sources
         * or `customizer` functions.
         *
         * @private
         * @param {Object} object The destination object.
         * @param {Object} source The source object.
         * @returns {Object} Returns `object`.
         */
        function baseAssignIn(object, source) {
          return object && copyObject(source, keysIn(source), object)
        }

        /**
         * The base implementation of `assignValue` and `assignMergeValue` without
         * value checks.
         *
         * @private
         * @param {Object} object The object to modify.
         * @param {string} key The key of the property to assign.
         * @param {*} value The value to assign.
         */
        function baseAssignValue(object, key, value) {
          if (key == "__proto__" && defineProperty) {
            defineProperty(object, key, {
              configurable: true,
              enumerable: true,
              value: value,
              writable: true,
            })
          } else {
            object[key] = value
          }
        }

        /**
         * The base implementation of `_.at` without support for individual paths.
         *
         * @private
         * @param {Object} object The object to iterate over.
         * @param {string[]} paths The property paths to pick.
         * @returns {Array} Returns the picked elements.
         */
        function baseAt(object, paths) {
          var index = -1,
            length = paths.length,
            result = Array(length),
            skip = object == null

          while (++index < length) {
            result[index] = skip ? undefined$1 : get(object, paths[index])
          }
          return result
        }

        /**
         * The base implementation of `_.clamp` which doesn't coerce arguments.
         *
         * @private
         * @param {number} number The number to clamp.
         * @param {number} [lower] The lower bound.
         * @param {number} upper The upper bound.
         * @returns {number} Returns the clamped number.
         */
        function baseClamp(number, lower, upper) {
          if (number === number) {
            if (upper !== undefined$1) {
              number = number <= upper ? number : upper
            }
            if (lower !== undefined$1) {
              number = number >= lower ? number : lower
            }
          }
          return number
        }

        /**
         * The base implementation of `_.clone` and `_.cloneDeep` which tracks
         * traversed objects.
         *
         * @private
         * @param {*} value The value to clone.
         * @param {boolean} bitmask The bitmask flags.
         *  1 - Deep clone
         *  2 - Flatten inherited properties
         *  4 - Clone symbols
         * @param {Function} [customizer] The function to customize cloning.
         * @param {string} [key] The key of `value`.
         * @param {Object} [object] The parent object of `value`.
         * @param {Object} [stack] Tracks traversed objects and their clone counterparts.
         * @returns {*} Returns the cloned value.
         */
        function baseClone(value, bitmask, customizer, key, object, stack) {
          var result,
            isDeep = bitmask & CLONE_DEEP_FLAG,
            isFlat = bitmask & CLONE_FLAT_FLAG,
            isFull = bitmask & CLONE_SYMBOLS_FLAG

          if (customizer) {
            result = object
              ? customizer(value, key, object, stack)
              : customizer(value)
          }
          if (result !== undefined$1) {
            return result
          }
          if (!isObject(value)) {
            return value
          }
          var isArr = isArray(value)
          if (isArr) {
            result = initCloneArray(value)
            if (!isDeep) {
              return copyArray(value, result)
            }
          } else {
            var tag = getTag(value),
              isFunc = tag == funcTag || tag == genTag

            if (isBuffer(value)) {
              return cloneBuffer(value, isDeep)
            }
            if (tag == objectTag || tag == argsTag || (isFunc && !object)) {
              result = isFlat || isFunc ? {} : initCloneObject(value)
              if (!isDeep) {
                return isFlat
                  ? copySymbolsIn(value, baseAssignIn(result, value))
                  : copySymbols(value, baseAssign(result, value))
              }
            } else {
              if (!cloneableTags[tag]) {
                return object ? value : {}
              }
              result = initCloneByTag(value, tag, isDeep)
            }
          }
          // Check for circular references and return its corresponding clone.
          stack || (stack = new Stack())
          var stacked = stack.get(value)
          if (stacked) {
            return stacked
          }
          stack.set(value, result)

          if (isSet(value)) {
            value.forEach(function(subValue) {
              result.add(
                baseClone(subValue, bitmask, customizer, subValue, value, stack)
              )
            })
          } else if (isMap(value)) {
            value.forEach(function(subValue, key) {
              result.set(
                key,
                baseClone(subValue, bitmask, customizer, key, value, stack)
              )
            })
          }

          var keysFunc = isFull
            ? isFlat
              ? getAllKeysIn
              : getAllKeys
            : isFlat
            ? keysIn
            : keys

          var props = isArr ? undefined$1 : keysFunc(value)
          arrayEach(props || value, function(subValue, key) {
            if (props) {
              key = subValue
              subValue = value[key]
            }
            // Recursively populate clone (susceptible to call stack limits).
            assignValue(
              result,
              key,
              baseClone(subValue, bitmask, customizer, key, value, stack)
            )
          })
          return result
        }

        /**
         * The base implementation of `_.conforms` which doesn't clone `source`.
         *
         * @private
         * @param {Object} source The object of property predicates to conform to.
         * @returns {Function} Returns the new spec function.
         */
        function baseConforms(source) {
          var props = keys(source)
          return function(object) {
            return baseConformsTo(object, source, props)
          }
        }

        /**
         * The base implementation of `_.conformsTo` which accepts `props` to check.
         *
         * @private
         * @param {Object} object The object to inspect.
         * @param {Object} source The object of property predicates to conform to.
         * @returns {boolean} Returns `true` if `object` conforms, else `false`.
         */
        function baseConformsTo(object, source, props) {
          var length = props.length
          if (object == null) {
            return !length
          }
          object = Object(object)
          while (length--) {
            var key = props[length],
              predicate = source[key],
              value = object[key]

            if (
              (value === undefined$1 && !(key in object)) ||
              !predicate(value)
            ) {
              return false
            }
          }
          return true
        }

        /**
         * The base implementation of `_.delay` and `_.defer` which accepts `args`
         * to provide to `func`.
         *
         * @private
         * @param {Function} func The function to delay.
         * @param {number} wait The number of milliseconds to delay invocation.
         * @param {Array} args The arguments to provide to `func`.
         * @returns {number|Object} Returns the timer id or timeout object.
         */
        function baseDelay(func, wait, args) {
          if (typeof func != "function") {
            throw new TypeError(FUNC_ERROR_TEXT)
          }
          return setTimeout(function() {
            func.apply(undefined$1, args)
          }, wait)
        }

        /**
         * The base implementation of methods like `_.difference` without support
         * for excluding multiple arrays or iteratee shorthands.
         *
         * @private
         * @param {Array} array The array to inspect.
         * @param {Array} values The values to exclude.
         * @param {Function} [iteratee] The iteratee invoked per element.
         * @param {Function} [comparator] The comparator invoked per element.
         * @returns {Array} Returns the new array of filtered values.
         */
        function baseDifference(array, values, iteratee, comparator) {
          var index = -1,
            includes = arrayIncludes,
            isCommon = true,
            length = array.length,
            result = [],
            valuesLength = values.length

          if (!length) {
            return result
          }
          if (iteratee) {
            values = arrayMap(values, baseUnary(iteratee))
          }
          if (comparator) {
            includes = arrayIncludesWith
            isCommon = false
          } else if (values.length >= LARGE_ARRAY_SIZE) {
            includes = cacheHas
            isCommon = false
            values = new SetCache(values)
          }
          outer: while (++index < length) {
            var value = array[index],
              computed = iteratee == null ? value : iteratee(value)

            value = comparator || value !== 0 ? value : 0
            if (isCommon && computed === computed) {
              var valuesIndex = valuesLength
              while (valuesIndex--) {
                if (values[valuesIndex] === computed) {
                  continue outer
                }
              }
              result.push(value)
            } else if (!includes(values, computed, comparator)) {
              result.push(value)
            }
          }
          return result
        }

        /**
         * The base implementation of `_.forEach` without support for iteratee shorthands.
         *
         * @private
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} iteratee The function invoked per iteration.
         * @returns {Array|Object} Returns `collection`.
         */
        var baseEach = createBaseEach(baseForOwn)

        /**
         * The base implementation of `_.forEachRight` without support for iteratee shorthands.
         *
         * @private
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} iteratee The function invoked per iteration.
         * @returns {Array|Object} Returns `collection`.
         */
        var baseEachRight = createBaseEach(baseForOwnRight, true)

        /**
         * The base implementation of `_.every` without support for iteratee shorthands.
         *
         * @private
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} predicate The function invoked per iteration.
         * @returns {boolean} Returns `true` if all elements pass the predicate check,
         *  else `false`
         */
        function baseEvery(collection, predicate) {
          var result = true
          baseEach(collection, function(value, index, collection) {
            result = !!predicate(value, index, collection)
            return result
          })
          return result
        }

        /**
         * The base implementation of methods like `_.max` and `_.min` which accepts a
         * `comparator` to determine the extremum value.
         *
         * @private
         * @param {Array} array The array to iterate over.
         * @param {Function} iteratee The iteratee invoked per iteration.
         * @param {Function} comparator The comparator used to compare values.
         * @returns {*} Returns the extremum value.
         */
        function baseExtremum(array, iteratee, comparator) {
          var index = -1,
            length = array.length

          while (++index < length) {
            var value = array[index],
              current = iteratee(value)

            if (
              current != null &&
              (computed === undefined$1
                ? current === current && !isSymbol(current)
                : comparator(current, computed))
            ) {
              var computed = current,
                result = value
            }
          }
          return result
        }

        /**
         * The base implementation of `_.fill` without an iteratee call guard.
         *
         * @private
         * @param {Array} array The array to fill.
         * @param {*} value The value to fill `array` with.
         * @param {number} [start=0] The start position.
         * @param {number} [end=array.length] The end position.
         * @returns {Array} Returns `array`.
         */
        function baseFill(array, value, start, end) {
          var length = array.length

          start = toInteger(start)
          if (start < 0) {
            start = -start > length ? 0 : length + start
          }
          end = end === undefined$1 || end > length ? length : toInteger(end)
          if (end < 0) {
            end += length
          }
          end = start > end ? 0 : toLength(end)
          while (start < end) {
            array[start++] = value
          }
          return array
        }

        /**
         * The base implementation of `_.filter` without support for iteratee shorthands.
         *
         * @private
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} predicate The function invoked per iteration.
         * @returns {Array} Returns the new filtered array.
         */
        function baseFilter(collection, predicate) {
          var result = []
          baseEach(collection, function(value, index, collection) {
            if (predicate(value, index, collection)) {
              result.push(value)
            }
          })
          return result
        }

        /**
         * The base implementation of `_.flatten` with support for restricting flattening.
         *
         * @private
         * @param {Array} array The array to flatten.
         * @param {number} depth The maximum recursion depth.
         * @param {boolean} [predicate=isFlattenable] The function invoked per iteration.
         * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks.
         * @param {Array} [result=[]] The initial result value.
         * @returns {Array} Returns the new flattened array.
         */
        function baseFlatten(array, depth, predicate, isStrict, result) {
          var index = -1,
            length = array.length

          predicate || (predicate = isFlattenable)
          result || (result = [])

          while (++index < length) {
            var value = array[index]
            if (depth > 0 && predicate(value)) {
              if (depth > 1) {
                // Recursively flatten arrays (susceptible to call stack limits).
                baseFlatten(value, depth - 1, predicate, isStrict, result)
              } else {
                arrayPush(result, value)
              }
            } else if (!isStrict) {
              result[result.length] = value
            }
          }
          return result
        }

        /**
         * The base implementation of `baseForOwn` which iterates over `object`
         * properties returned by `keysFunc` and invokes `iteratee` for each property.
         * Iteratee functions may exit iteration early by explicitly returning `false`.
         *
         * @private
         * @param {Object} object The object to iterate over.
         * @param {Function} iteratee The function invoked per iteration.
         * @param {Function} keysFunc The function to get the keys of `object`.
         * @returns {Object} Returns `object`.
         */
        var baseFor = createBaseFor()

        /**
         * This function is like `baseFor` except that it iterates over properties
         * in the opposite order.
         *
         * @private
         * @param {Object} object The object to iterate over.
         * @param {Function} iteratee The function invoked per iteration.
         * @param {Function} keysFunc The function to get the keys of `object`.
         * @returns {Object} Returns `object`.
         */
        var baseForRight = createBaseFor(true)

        /**
         * The base implementation of `_.forOwn` without support for iteratee shorthands.
         *
         * @private
         * @param {Object} object The object to iterate over.
         * @param {Function} iteratee The function invoked per iteration.
         * @returns {Object} Returns `object`.
         */
        function baseForOwn(object, iteratee) {
          return object && baseFor(object, iteratee, keys)
        }

        /**
         * The base implementation of `_.forOwnRight` without support for iteratee shorthands.
         *
         * @private
         * @param {Object} object The object to iterate over.
         * @param {Function} iteratee The function invoked per iteration.
         * @returns {Object} Returns `object`.
         */
        function baseForOwnRight(object, iteratee) {
          return object && baseForRight(object, iteratee, keys)
        }

        /**
         * The base implementation of `_.functions` which creates an array of
         * `object` function property names filtered from `props`.
         *
         * @private
         * @param {Object} object The object to inspect.
         * @param {Array} props The property names to filter.
         * @returns {Array} Returns the function names.
         */
        function baseFunctions(object, props) {
          return arrayFilter(props, function(key) {
            return isFunction(object[key])
          })
        }

        /**
         * The base implementation of `_.get` without support for default values.
         *
         * @private
         * @param {Object} object The object to query.
         * @param {Array|string} path The path of the property to get.
         * @returns {*} Returns the resolved value.
         */
        function baseGet(object, path) {
          path = castPath(path, object)

          var index = 0,
            length = path.length

          while (object != null && index < length) {
            object = object[toKey(path[index++])]
          }
          return index && index == length ? object : undefined$1
        }

        /**
         * The base implementation of `getAllKeys` and `getAllKeysIn` which uses
         * `keysFunc` and `symbolsFunc` to get the enumerable property names and
         * symbols of `object`.
         *
         * @private
         * @param {Object} object The object to query.
         * @param {Function} keysFunc The function to get the keys of `object`.
         * @param {Function} symbolsFunc The function to get the symbols of `object`.
         * @returns {Array} Returns the array of property names and symbols.
         */
        function baseGetAllKeys(object, keysFunc, symbolsFunc) {
          var result = keysFunc(object)
          return isArray(object)
            ? result
            : arrayPush(result, symbolsFunc(object))
        }

        /**
         * The base implementation of `getTag` without fallbacks for buggy environments.
         *
         * @private
         * @param {*} value The value to query.
         * @returns {string} Returns the `toStringTag`.
         */
        function baseGetTag(value) {
          if (value == null) {
            return value === undefined$1 ? undefinedTag : nullTag
          }
          return symToStringTag && symToStringTag in Object(value)
            ? getRawTag(value)
            : objectToString(value)
        }

        /**
         * The base implementation of `_.gt` which doesn't coerce arguments.
         *
         * @private
         * @param {*} value The value to compare.
         * @param {*} other The other value to compare.
         * @returns {boolean} Returns `true` if `value` is greater than `other`,
         *  else `false`.
         */
        function baseGt(value, other) {
          return value > other
        }

        /**
         * The base implementation of `_.has` without support for deep paths.
         *
         * @private
         * @param {Object} [object] The object to query.
         * @param {Array|string} key The key to check.
         * @returns {boolean} Returns `true` if `key` exists, else `false`.
         */
        function baseHas(object, key) {
          return object != null && hasOwnProperty.call(object, key)
        }

        /**
         * The base implementation of `_.hasIn` without support for deep paths.
         *
         * @private
         * @param {Object} [object] The object to query.
         * @param {Array|string} key The key to check.
         * @returns {boolean} Returns `true` if `key` exists, else `false`.
         */
        function baseHasIn(object, key) {
          return object != null && key in Object(object)
        }

        /**
         * The base implementation of `_.inRange` which doesn't coerce arguments.
         *
         * @private
         * @param {number} number The number to check.
         * @param {number} start The start of the range.
         * @param {number} end The end of the range.
         * @returns {boolean} Returns `true` if `number` is in the range, else `false`.
         */
        function baseInRange(number, start, end) {
          return (
            number >= nativeMin(start, end) && number < nativeMax(start, end)
          )
        }

        /**
         * The base implementation of methods like `_.intersection`, without support
         * for iteratee shorthands, that accepts an array of arrays to inspect.
         *
         * @private
         * @param {Array} arrays The arrays to inspect.
         * @param {Function} [iteratee] The iteratee invoked per element.
         * @param {Function} [comparator] The comparator invoked per element.
         * @returns {Array} Returns the new array of shared values.
         */
        function baseIntersection(arrays, iteratee, comparator) {
          var includes = comparator ? arrayIncludesWith : arrayIncludes,
            length = arrays[0].length,
            othLength = arrays.length,
            othIndex = othLength,
            caches = Array(othLength),
            maxLength = Infinity,
            result = []

          while (othIndex--) {
            var array = arrays[othIndex]
            if (othIndex && iteratee) {
              array = arrayMap(array, baseUnary(iteratee))
            }
            maxLength = nativeMin(array.length, maxLength)
            caches[othIndex] =
              !comparator &&
              (iteratee || (length >= 120 && array.length >= 120))
                ? new SetCache(othIndex && array)
                : undefined$1
          }
          array = arrays[0]

          var index = -1,
            seen = caches[0]

          outer: while (++index < length && result.length < maxLength) {
            var value = array[index],
              computed = iteratee ? iteratee(value) : value

            value = comparator || value !== 0 ? value : 0
            if (
              !(seen
                ? cacheHas(seen, computed)
                : includes(result, computed, comparator))
            ) {
              othIndex = othLength
              while (--othIndex) {
                var cache = caches[othIndex]
                if (
                  !(cache
                    ? cacheHas(cache, computed)
                    : includes(arrays[othIndex], computed, comparator))
                ) {
                  continue outer
                }
              }
              if (seen) {
                seen.push(computed)
              }
              result.push(value)
            }
          }
          return result
        }

        /**
         * The base implementation of `_.invert` and `_.invertBy` which inverts
         * `object` with values transformed by `iteratee` and set by `setter`.
         *
         * @private
         * @param {Object} object The object to iterate over.
         * @param {Function} setter The function to set `accumulator` values.
         * @param {Function} iteratee The iteratee to transform values.
         * @param {Object} accumulator The initial inverted object.
         * @returns {Function} Returns `accumulator`.
         */
        function baseInverter(object, setter, iteratee, accumulator) {
          baseForOwn(object, function(value, key, object) {
            setter(accumulator, iteratee(value), key, object)
          })
          return accumulator
        }

        /**
         * The base implementation of `_.invoke` without support for individual
         * method arguments.
         *
         * @private
         * @param {Object} object The object to query.
         * @param {Array|string} path The path of the method to invoke.
         * @param {Array} args The arguments to invoke the method with.
         * @returns {*} Returns the result of the invoked method.
         */
        function baseInvoke(object, path, args) {
          path = castPath(path, object)
          object = parent(object, path)
          var func = object == null ? object : object[toKey(last(path))]
          return func == null ? undefined$1 : apply(func, object, args)
        }

        /**
         * The base implementation of `_.isArguments`.
         *
         * @private
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is an `arguments` object,
         */
        function baseIsArguments(value) {
          return isObjectLike(value) && baseGetTag(value) == argsTag
        }

        /**
         * The base implementation of `_.isArrayBuffer` without Node.js optimizations.
         *
         * @private
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.
         */
        function baseIsArrayBuffer(value) {
          return isObjectLike(value) && baseGetTag(value) == arrayBufferTag
        }

        /**
         * The base implementation of `_.isDate` without Node.js optimizations.
         *
         * @private
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a date object, else `false`.
         */
        function baseIsDate(value) {
          return isObjectLike(value) && baseGetTag(value) == dateTag
        }

        /**
         * The base implementation of `_.isEqual` which supports partial comparisons
         * and tracks traversed objects.
         *
         * @private
         * @param {*} value The value to compare.
         * @param {*} other The other value to compare.
         * @param {boolean} bitmask The bitmask flags.
         *  1 - Unordered comparison
         *  2 - Partial comparison
         * @param {Function} [customizer] The function to customize comparisons.
         * @param {Object} [stack] Tracks traversed `value` and `other` objects.
         * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
         */
        function baseIsEqual(value, other, bitmask, customizer, stack) {
          if (value === other) {
            return true
          }
          if (
            value == null ||
            other == null ||
            (!isObjectLike(value) && !isObjectLike(other))
          ) {
            return value !== value && other !== other
          }
          return baseIsEqualDeep(
            value,
            other,
            bitmask,
            customizer,
            baseIsEqual,
            stack
          )
        }

        /**
         * A specialized version of `baseIsEqual` for arrays and objects which performs
         * deep comparisons and tracks traversed objects enabling objects with circular
         * references to be compared.
         *
         * @private
         * @param {Object} object The object to compare.
         * @param {Object} other The other object to compare.
         * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
         * @param {Function} customizer The function to customize comparisons.
         * @param {Function} equalFunc The function to determine equivalents of values.
         * @param {Object} [stack] Tracks traversed `object` and `other` objects.
         * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
         */
        function baseIsEqualDeep(
          object,
          other,
          bitmask,
          customizer,
          equalFunc,
          stack
        ) {
          var objIsArr = isArray(object),
            othIsArr = isArray(other),
            objTag = objIsArr ? arrayTag : getTag(object),
            othTag = othIsArr ? arrayTag : getTag(other)

          objTag = objTag == argsTag ? objectTag : objTag
          othTag = othTag == argsTag ? objectTag : othTag

          var objIsObj = objTag == objectTag,
            othIsObj = othTag == objectTag,
            isSameTag = objTag == othTag

          if (isSameTag && isBuffer(object)) {
            if (!isBuffer(other)) {
              return false
            }
            objIsArr = true
            objIsObj = false
          }
          if (isSameTag && !objIsObj) {
            stack || (stack = new Stack())
            return objIsArr || isTypedArray(object)
              ? equalArrays(
                  object,
                  other,
                  bitmask,
                  customizer,
                  equalFunc,
                  stack
                )
              : equalByTag(
                  object,
                  other,
                  objTag,
                  bitmask,
                  customizer,
                  equalFunc,
                  stack
                )
          }
          if (!(bitmask & COMPARE_PARTIAL_FLAG)) {
            var objIsWrapped =
                objIsObj && hasOwnProperty.call(object, "__wrapped__"),
              othIsWrapped =
                othIsObj && hasOwnProperty.call(other, "__wrapped__")

            if (objIsWrapped || othIsWrapped) {
              var objUnwrapped = objIsWrapped ? object.value() : object,
                othUnwrapped = othIsWrapped ? other.value() : other

              stack || (stack = new Stack())
              return equalFunc(
                objUnwrapped,
                othUnwrapped,
                bitmask,
                customizer,
                stack
              )
            }
          }
          if (!isSameTag) {
            return false
          }
          stack || (stack = new Stack())
          return equalObjects(
            object,
            other,
            bitmask,
            customizer,
            equalFunc,
            stack
          )
        }

        /**
         * The base implementation of `_.isMap` without Node.js optimizations.
         *
         * @private
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a map, else `false`.
         */
        function baseIsMap(value) {
          return isObjectLike(value) && getTag(value) == mapTag
        }

        /**
         * The base implementation of `_.isMatch` without support for iteratee shorthands.
         *
         * @private
         * @param {Object} object The object to inspect.
         * @param {Object} source The object of property values to match.
         * @param {Array} matchData The property names, values, and compare flags to match.
         * @param {Function} [customizer] The function to customize comparisons.
         * @returns {boolean} Returns `true` if `object` is a match, else `false`.
         */
        function baseIsMatch(object, source, matchData, customizer) {
          var index = matchData.length,
            length = index,
            noCustomizer = !customizer

          if (object == null) {
            return !length
          }
          object = Object(object)
          while (index--) {
            var data = matchData[index]
            if (
              noCustomizer && data[2]
                ? data[1] !== object[data[0]]
                : !(data[0] in object)
            ) {
              return false
            }
          }
          while (++index < length) {
            data = matchData[index]
            var key = data[0],
              objValue = object[key],
              srcValue = data[1]

            if (noCustomizer && data[2]) {
              if (objValue === undefined$1 && !(key in object)) {
                return false
              }
            } else {
              var stack = new Stack()
              if (customizer) {
                var result = customizer(
                  objValue,
                  srcValue,
                  key,
                  object,
                  source,
                  stack
                )
              }
              if (
                !(result === undefined$1
                  ? baseIsEqual(
                      srcValue,
                      objValue,
                      COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG,
                      customizer,
                      stack
                    )
                  : result)
              ) {
                return false
              }
            }
          }
          return true
        }

        /**
         * The base implementation of `_.isNative` without bad shim checks.
         *
         * @private
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a native function,
         *  else `false`.
         */
        function baseIsNative(value) {
          if (!isObject(value) || isMasked(value)) {
            return false
          }
          var pattern = isFunction(value) ? reIsNative : reIsHostCtor
          return pattern.test(toSource(value))
        }

        /**
         * The base implementation of `_.isRegExp` without Node.js optimizations.
         *
         * @private
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.
         */
        function baseIsRegExp(value) {
          return isObjectLike(value) && baseGetTag(value) == regexpTag
        }

        /**
         * The base implementation of `_.isSet` without Node.js optimizations.
         *
         * @private
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a set, else `false`.
         */
        function baseIsSet(value) {
          return isObjectLike(value) && getTag(value) == setTag
        }

        /**
         * The base implementation of `_.isTypedArray` without Node.js optimizations.
         *
         * @private
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
         */
        function baseIsTypedArray(value) {
          return (
            isObjectLike(value) &&
            isLength(value.length) &&
            !!typedArrayTags[baseGetTag(value)]
          )
        }

        /**
         * The base implementation of `_.iteratee`.
         *
         * @private
         * @param {*} [value=_.identity] The value to convert to an iteratee.
         * @returns {Function} Returns the iteratee.
         */
        function baseIteratee(value) {
          // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9.
          // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details.
          if (typeof value == "function") {
            return value
          }
          if (value == null) {
            return identity
          }
          if (typeof value == "object") {
            return isArray(value)
              ? baseMatchesProperty(value[0], value[1])
              : baseMatches(value)
          }
          return property(value)
        }

        /**
         * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.
         *
         * @private
         * @param {Object} object The object to query.
         * @returns {Array} Returns the array of property names.
         */
        function baseKeys(object) {
          if (!isPrototype(object)) {
            return nativeKeys(object)
          }
          var result = []
          for (var key in Object(object)) {
            if (hasOwnProperty.call(object, key) && key != "constructor") {
              result.push(key)
            }
          }
          return result
        }

        /**
         * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense.
         *
         * @private
         * @param {Object} object The object to query.
         * @returns {Array} Returns the array of property names.
         */
        function baseKeysIn(object) {
          if (!isObject(object)) {
            return nativeKeysIn(object)
          }
          var isProto = isPrototype(object),
            result = []

          for (var key in object) {
            if (
              !(
                key == "constructor" &&
                (isProto || !hasOwnProperty.call(object, key))
              )
            ) {
              result.push(key)
            }
          }
          return result
        }

        /**
         * The base implementation of `_.lt` which doesn't coerce arguments.
         *
         * @private
         * @param {*} value The value to compare.
         * @param {*} other The other value to compare.
         * @returns {boolean} Returns `true` if `value` is less than `other`,
         *  else `false`.
         */
        function baseLt(value, other) {
          return value < other
        }

        /**
         * The base implementation of `_.map` without support for iteratee shorthands.
         *
         * @private
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} iteratee The function invoked per iteration.
         * @returns {Array} Returns the new mapped array.
         */
        function baseMap(collection, iteratee) {
          var index = -1,
            result = isArrayLike(collection) ? Array(collection.length) : []

          baseEach(collection, function(value, key, collection) {
            result[++index] = iteratee(value, key, collection)
          })
          return result
        }

        /**
         * The base implementation of `_.matches` which doesn't clone `source`.
         *
         * @private
         * @param {Object} source The object of property values to match.
         * @returns {Function} Returns the new spec function.
         */
        function baseMatches(source) {
          var matchData = getMatchData(source)
          if (matchData.length == 1 && matchData[0][2]) {
            return matchesStrictComparable(matchData[0][0], matchData[0][1])
          }
          return function(object) {
            return object === source || baseIsMatch(object, source, matchData)
          }
        }

        /**
         * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`.
         *
         * @private
         * @param {string} path The path of the property to get.
         * @param {*} srcValue The value to match.
         * @returns {Function} Returns the new spec function.
         */
        function baseMatchesProperty(path, srcValue) {
          if (isKey(path) && isStrictComparable(srcValue)) {
            return matchesStrictComparable(toKey(path), srcValue)
          }
          return function(object) {
            var objValue = get(object, path)
            return objValue === undefined$1 && objValue === srcValue
              ? hasIn(object, path)
              : baseIsEqual(
                  srcValue,
                  objValue,
                  COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG
                )
          }
        }

        /**
         * The base implementation of `_.merge` without support for multiple sources.
         *
         * @private
         * @param {Object} object The destination object.
         * @param {Object} source The source object.
         * @param {number} srcIndex The index of `source`.
         * @param {Function} [customizer] The function to customize merged values.
         * @param {Object} [stack] Tracks traversed source values and their merged
         *  counterparts.
         */
        function baseMerge(object, source, srcIndex, customizer, stack) {
          if (object === source) {
            return
          }
          baseFor(
            source,
            function(srcValue, key) {
              stack || (stack = new Stack())
              if (isObject(srcValue)) {
                baseMergeDeep(
                  object,
                  source,
                  key,
                  srcIndex,
                  baseMerge,
                  customizer,
                  stack
                )
              } else {
                var newValue = customizer
                  ? customizer(
                      safeGet(object, key),
                      srcValue,
                      key + "",
                      object,
                      source,
                      stack
                    )
                  : undefined$1

                if (newValue === undefined$1) {
                  newValue = srcValue
                }
                assignMergeValue(object, key, newValue)
              }
            },
            keysIn
          )
        }

        /**
         * A specialized version of `baseMerge` for arrays and objects which performs
         * deep merges and tracks traversed objects enabling objects with circular
         * references to be merged.
         *
         * @private
         * @param {Object} object The destination object.
         * @param {Object} source The source object.
         * @param {string} key The key of the value to merge.
         * @param {number} srcIndex The index of `source`.
         * @param {Function} mergeFunc The function to merge values.
         * @param {Function} [customizer] The function to customize assigned values.
         * @param {Object} [stack] Tracks traversed source values and their merged
         *  counterparts.
         */
        function baseMergeDeep(
          object,
          source,
          key,
          srcIndex,
          mergeFunc,
          customizer,
          stack
        ) {
          var objValue = safeGet(object, key),
            srcValue = safeGet(source, key),
            stacked = stack.get(srcValue)

          if (stacked) {
            assignMergeValue(object, key, stacked)
            return
          }
          var newValue = customizer
            ? customizer(objValue, srcValue, key + "", object, source, stack)
            : undefined$1

          var isCommon = newValue === undefined$1

          if (isCommon) {
            var isArr = isArray(srcValue),
              isBuff = !isArr && isBuffer(srcValue),
              isTyped = !isArr && !isBuff && isTypedArray(srcValue)

            newValue = srcValue
            if (isArr || isBuff || isTyped) {
              if (isArray(objValue)) {
                newValue = objValue
              } else if (isArrayLikeObject(objValue)) {
                newValue = copyArray(objValue)
              } else if (isBuff) {
                isCommon = false
                newValue = cloneBuffer(srcValue, true)
              } else if (isTyped) {
                isCommon = false
                newValue = cloneTypedArray(srcValue, true)
              } else {
                newValue = []
              }
            } else if (isPlainObject(srcValue) || isArguments(srcValue)) {
              newValue = objValue
              if (isArguments(objValue)) {
                newValue = toPlainObject(objValue)
              } else if (!isObject(objValue) || isFunction(objValue)) {
                newValue = initCloneObject(srcValue)
              }
            } else {
              isCommon = false
            }
          }
          if (isCommon) {
            // Recursively merge objects and arrays (susceptible to call stack limits).
            stack.set(srcValue, newValue)
            mergeFunc(newValue, srcValue, srcIndex, customizer, stack)
            stack["delete"](srcValue)
          }
          assignMergeValue(object, key, newValue)
        }

        /**
         * The base implementation of `_.nth` which doesn't coerce arguments.
         *
         * @private
         * @param {Array} array The array to query.
         * @param {number} n The index of the element to return.
         * @returns {*} Returns the nth element of `array`.
         */
        function baseNth(array, n) {
          var length = array.length
          if (!length) {
            return
          }
          n += n < 0 ? length : 0
          return isIndex(n, length) ? array[n] : undefined$1
        }

        /**
         * The base implementation of `_.orderBy` without param guards.
         *
         * @private
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.
         * @param {string[]} orders The sort orders of `iteratees`.
         * @returns {Array} Returns the new sorted array.
         */
        function baseOrderBy(collection, iteratees, orders) {
          var index = -1
          iteratees = arrayMap(
            iteratees.length ? iteratees : [identity],
            baseUnary(getIteratee())
          )

          var result = baseMap(collection, function(value, key, collection) {
            var criteria = arrayMap(iteratees, function(iteratee) {
              return iteratee(value)
            })
            return { criteria: criteria, index: ++index, value: value }
          })

          return baseSortBy(result, function(object, other) {
            return compareMultiple(object, other, orders)
          })
        }

        /**
         * The base implementation of `_.pick` without support for individual
         * property identifiers.
         *
         * @private
         * @param {Object} object The source object.
         * @param {string[]} paths The property paths to pick.
         * @returns {Object} Returns the new object.
         */
        function basePick(object, paths) {
          return basePickBy(object, paths, function(value, path) {
            return hasIn(object, path)
          })
        }

        /**
         * The base implementation of  `_.pickBy` without support for iteratee shorthands.
         *
         * @private
         * @param {Object} object The source object.
         * @param {string[]} paths The property paths to pick.
         * @param {Function} predicate The function invoked per property.
         * @returns {Object} Returns the new object.
         */
        function basePickBy(object, paths, predicate) {
          var index = -1,
            length = paths.length,
            result = {}

          while (++index < length) {
            var path = paths[index],
              value = baseGet(object, path)

            if (predicate(value, path)) {
              baseSet(result, castPath(path, object), value)
            }
          }
          return result
        }

        /**
         * A specialized version of `baseProperty` which supports deep paths.
         *
         * @private
         * @param {Array|string} path The path of the property to get.
         * @returns {Function} Returns the new accessor function.
         */
        function basePropertyDeep(path) {
          return function(object) {
            return baseGet(object, path)
          }
        }

        /**
         * The base implementation of `_.pullAllBy` without support for iteratee
         * shorthands.
         *
         * @private
         * @param {Array} array The array to modify.
         * @param {Array} values The values to remove.
         * @param {Function} [iteratee] The iteratee invoked per element.
         * @param {Function} [comparator] The comparator invoked per element.
         * @returns {Array} Returns `array`.
         */
        function basePullAll(array, values, iteratee, comparator) {
          var indexOf = comparator ? baseIndexOfWith : baseIndexOf,
            index = -1,
            length = values.length,
            seen = array

          if (array === values) {
            values = copyArray(values)
          }
          if (iteratee) {
            seen = arrayMap(array, baseUnary(iteratee))
          }
          while (++index < length) {
            var fromIndex = 0,
              value = values[index],
              computed = iteratee ? iteratee(value) : value

            while (
              (fromIndex = indexOf(seen, computed, fromIndex, comparator)) > -1
            ) {
              if (seen !== array) {
                splice.call(seen, fromIndex, 1)
              }
              splice.call(array, fromIndex, 1)
            }
          }
          return array
        }

        /**
         * The base implementation of `_.pullAt` without support for individual
         * indexes or capturing the removed elements.
         *
         * @private
         * @param {Array} array The array to modify.
         * @param {number[]} indexes The indexes of elements to remove.
         * @returns {Array} Returns `array`.
         */
        function basePullAt(array, indexes) {
          var length = array ? indexes.length : 0,
            lastIndex = length - 1

          while (length--) {
            var index = indexes[length]
            if (length == lastIndex || index !== previous) {
              var previous = index
              if (isIndex(index)) {
                splice.call(array, index, 1)
              } else {
                baseUnset(array, index)
              }
            }
          }
          return array
        }

        /**
         * The base implementation of `_.random` without support for returning
         * floating-point numbers.
         *
         * @private
         * @param {number} lower The lower bound.
         * @param {number} upper The upper bound.
         * @returns {number} Returns the random number.
         */
        function baseRandom(lower, upper) {
          return lower + nativeFloor(nativeRandom() * (upper - lower + 1))
        }

        /**
         * The base implementation of `_.range` and `_.rangeRight` which doesn't
         * coerce arguments.
         *
         * @private
         * @param {number} start The start of the range.
         * @param {number} end The end of the range.
         * @param {number} step The value to increment or decrement by.
         * @param {boolean} [fromRight] Specify iterating from right to left.
         * @returns {Array} Returns the range of numbers.
         */
        function baseRange(start, end, step, fromRight) {
          var index = -1,
            length = nativeMax(nativeCeil((end - start) / (step || 1)), 0),
            result = Array(length)

          while (length--) {
            result[fromRight ? length : ++index] = start
            start += step
          }
          return result
        }

        /**
         * The base implementation of `_.repeat` which doesn't coerce arguments.
         *
         * @private
         * @param {string} string The string to repeat.
         * @param {number} n The number of times to repeat the string.
         * @returns {string} Returns the repeated string.
         */
        function baseRepeat(string, n) {
          var result = ""
          if (!string || n < 1 || n > MAX_SAFE_INTEGER) {
            return result
          }
          // Leverage the exponentiation by squaring algorithm for a faster repeat.
          // See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details.
          do {
            if (n % 2) {
              result += string
            }
            n = nativeFloor(n / 2)
            if (n) {
              string += string
            }
          } while (n)

          return result
        }

        /**
         * The base implementation of `_.rest` which doesn't validate or coerce arguments.
         *
         * @private
         * @param {Function} func The function to apply a rest parameter to.
         * @param {number} [start=func.length-1] The start position of the rest parameter.
         * @returns {Function} Returns the new function.
         */
        function baseRest(func, start) {
          return setToString(overRest(func, start, identity), func + "")
        }

        /**
         * The base implementation of `_.sample`.
         *
         * @private
         * @param {Array|Object} collection The collection to sample.
         * @returns {*} Returns the random element.
         */
        function baseSample(collection) {
          return arraySample(values(collection))
        }

        /**
         * The base implementation of `_.sampleSize` without param guards.
         *
         * @private
         * @param {Array|Object} collection The collection to sample.
         * @param {number} n The number of elements to sample.
         * @returns {Array} Returns the random elements.
         */
        function baseSampleSize(collection, n) {
          var array = values(collection)
          return shuffleSelf(array, baseClamp(n, 0, array.length))
        }

        /**
         * The base implementation of `_.set`.
         *
         * @private
         * @param {Object} object The object to modify.
         * @param {Array|string} path The path of the property to set.
         * @param {*} value The value to set.
         * @param {Function} [customizer] The function to customize path creation.
         * @returns {Object} Returns `object`.
         */
        function baseSet(object, path, value, customizer) {
          if (!isObject(object)) {
            return object
          }
          path = castPath(path, object)

          var index = -1,
            length = path.length,
            lastIndex = length - 1,
            nested = object

          while (nested != null && ++index < length) {
            var key = toKey(path[index]),
              newValue = value

            if (index != lastIndex) {
              var objValue = nested[key]
              newValue = customizer
                ? customizer(objValue, key, nested)
                : undefined$1
              if (newValue === undefined$1) {
                newValue = isObject(objValue)
                  ? objValue
                  : isIndex(path[index + 1])
                  ? []
                  : {}
              }
            }
            assignValue(nested, key, newValue)
            nested = nested[key]
          }
          return object
        }

        /**
         * The base implementation of `setData` without support for hot loop shorting.
         *
         * @private
         * @param {Function} func The function to associate metadata with.
         * @param {*} data The metadata.
         * @returns {Function} Returns `func`.
         */
        var baseSetData = !metaMap
          ? identity
          : function(func, data) {
              metaMap.set(func, data)
              return func
            }

        /**
         * The base implementation of `setToString` without support for hot loop shorting.
         *
         * @private
         * @param {Function} func The function to modify.
         * @param {Function} string The `toString` result.
         * @returns {Function} Returns `func`.
         */
        var baseSetToString = !defineProperty
          ? identity
          : function(func, string) {
              return defineProperty(func, "toString", {
                configurable: true,
                enumerable: false,
                value: constant(string),
                writable: true,
              })
            }

        /**
         * The base implementation of `_.shuffle`.
         *
         * @private
         * @param {Array|Object} collection The collection to shuffle.
         * @returns {Array} Returns the new shuffled array.
         */
        function baseShuffle(collection) {
          return shuffleSelf(values(collection))
        }

        /**
         * The base implementation of `_.slice` without an iteratee call guard.
         *
         * @private
         * @param {Array} array The array to slice.
         * @param {number} [start=0] The start position.
         * @param {number} [end=array.length] The end position.
         * @returns {Array} Returns the slice of `array`.
         */
        function baseSlice(array, start, end) {
          var index = -1,
            length = array.length

          if (start < 0) {
            start = -start > length ? 0 : length + start
          }
          end = end > length ? length : end
          if (end < 0) {
            end += length
          }
          length = start > end ? 0 : (end - start) >>> 0
          start >>>= 0

          var result = Array(length)
          while (++index < length) {
            result[index] = array[index + start]
          }
          return result
        }

        /**
         * The base implementation of `_.some` without support for iteratee shorthands.
         *
         * @private
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} predicate The function invoked per iteration.
         * @returns {boolean} Returns `true` if any element passes the predicate check,
         *  else `false`.
         */
        function baseSome(collection, predicate) {
          var result

          baseEach(collection, function(value, index, collection) {
            result = predicate(value, index, collection)
            return !result
          })
          return !!result
        }

        /**
         * The base implementation of `_.sortedIndex` and `_.sortedLastIndex` which
         * performs a binary search of `array` to determine the index at which `value`
         * should be inserted into `array` in order to maintain its sort order.
         *
         * @private
         * @param {Array} array The sorted array to inspect.
         * @param {*} value The value to evaluate.
         * @param {boolean} [retHighest] Specify returning the highest qualified index.
         * @returns {number} Returns the index at which `value` should be inserted
         *  into `array`.
         */
        function baseSortedIndex(array, value, retHighest) {
          var low = 0,
            high = array == null ? low : array.length

          if (
            typeof value == "number" &&
            value === value &&
            high <= HALF_MAX_ARRAY_LENGTH
          ) {
            while (low < high) {
              var mid = (low + high) >>> 1,
                computed = array[mid]

              if (
                computed !== null &&
                !isSymbol(computed) &&
                (retHighest ? computed <= value : computed < value)
              ) {
                low = mid + 1
              } else {
                high = mid
              }
            }
            return high
          }
          return baseSortedIndexBy(array, value, identity, retHighest)
        }

        /**
         * The base implementation of `_.sortedIndexBy` and `_.sortedLastIndexBy`
         * which invokes `iteratee` for `value` and each element of `array` to compute
         * their sort ranking. The iteratee is invoked with one argument; (value).
         *
         * @private
         * @param {Array} array The sorted array to inspect.
         * @param {*} value The value to evaluate.
         * @param {Function} iteratee The iteratee invoked per element.
         * @param {boolean} [retHighest] Specify returning the highest qualified index.
         * @returns {number} Returns the index at which `value` should be inserted
         *  into `array`.
         */
        function baseSortedIndexBy(array, value, iteratee, retHighest) {
          value = iteratee(value)

          var low = 0,
            high = array == null ? 0 : array.length,
            valIsNaN = value !== value,
            valIsNull = value === null,
            valIsSymbol = isSymbol(value),
            valIsUndefined = value === undefined$1

          while (low < high) {
            var mid = nativeFloor((low + high) / 2),
              computed = iteratee(array[mid]),
              othIsDefined = computed !== undefined$1,
              othIsNull = computed === null,
              othIsReflexive = computed === computed,
              othIsSymbol = isSymbol(computed)

            if (valIsNaN) {
              var setLow = retHighest || othIsReflexive
            } else if (valIsUndefined) {
              setLow = othIsReflexive && (retHighest || othIsDefined)
            } else if (valIsNull) {
              setLow =
                othIsReflexive && othIsDefined && (retHighest || !othIsNull)
            } else if (valIsSymbol) {
              setLow =
                othIsReflexive &&
                othIsDefined &&
                !othIsNull &&
                (retHighest || !othIsSymbol)
            } else if (othIsNull || othIsSymbol) {
              setLow = false
            } else {
              setLow = retHighest ? computed <= value : computed < value
            }
            if (setLow) {
              low = mid + 1
            } else {
              high = mid
            }
          }
          return nativeMin(high, MAX_ARRAY_INDEX)
        }

        /**
         * The base implementation of `_.sortedUniq` and `_.sortedUniqBy` without
         * support for iteratee shorthands.
         *
         * @private
         * @param {Array} array The array to inspect.
         * @param {Function} [iteratee] The iteratee invoked per element.
         * @returns {Array} Returns the new duplicate free array.
         */
        function baseSortedUniq(array, iteratee) {
          var index = -1,
            length = array.length,
            resIndex = 0,
            result = []

          while (++index < length) {
            var value = array[index],
              computed = iteratee ? iteratee(value) : value

            if (!index || !eq(computed, seen)) {
              var seen = computed
              result[resIndex++] = value === 0 ? 0 : value
            }
          }
          return result
        }

        /**
         * The base implementation of `_.toNumber` which doesn't ensure correct
         * conversions of binary, hexadecimal, or octal string values.
         *
         * @private
         * @param {*} value The value to process.
         * @returns {number} Returns the number.
         */
        function baseToNumber(value) {
          if (typeof value == "number") {
            return value
          }
          if (isSymbol(value)) {
            return NAN
          }
          return +value
        }

        /**
         * The base implementation of `_.toString` which doesn't convert nullish
         * values to empty strings.
         *
         * @private
         * @param {*} value The value to process.
         * @returns {string} Returns the string.
         */
        function baseToString(value) {
          // Exit early for strings to avoid a performance hit in some environments.
          if (typeof value == "string") {
            return value
          }
          if (isArray(value)) {
            // Recursively convert values (susceptible to call stack limits).
            return arrayMap(value, baseToString) + ""
          }
          if (isSymbol(value)) {
            return symbolToString ? symbolToString.call(value) : ""
          }
          var result = value + ""
          return result == "0" && 1 / value == -INFINITY ? "-0" : result
        }

        /**
         * The base implementation of `_.uniqBy` without support for iteratee shorthands.
         *
         * @private
         * @param {Array} array The array to inspect.
         * @param {Function} [iteratee] The iteratee invoked per element.
         * @param {Function} [comparator] The comparator invoked per element.
         * @returns {Array} Returns the new duplicate free array.
         */
        function baseUniq(array, iteratee, comparator) {
          var index = -1,
            includes = arrayIncludes,
            length = array.length,
            isCommon = true,
            result = [],
            seen = result

          if (comparator) {
            isCommon = false
            includes = arrayIncludesWith
          } else if (length >= LARGE_ARRAY_SIZE) {
            var set = iteratee ? null : createSet(array)
            if (set) {
              return setToArray(set)
            }
            isCommon = false
            includes = cacheHas
            seen = new SetCache()
          } else {
            seen = iteratee ? [] : result
          }
          outer: while (++index < length) {
            var value = array[index],
              computed = iteratee ? iteratee(value) : value

            value = comparator || value !== 0 ? value : 0
            if (isCommon && computed === computed) {
              var seenIndex = seen.length
              while (seenIndex--) {
                if (seen[seenIndex] === computed) {
                  continue outer
                }
              }
              if (iteratee) {
                seen.push(computed)
              }
              result.push(value)
            } else if (!includes(seen, computed, comparator)) {
              if (seen !== result) {
                seen.push(computed)
              }
              result.push(value)
            }
          }
          return result
        }

        /**
         * The base implementation of `_.unset`.
         *
         * @private
         * @param {Object} object The object to modify.
         * @param {Array|string} path The property path to unset.
         * @returns {boolean} Returns `true` if the property is deleted, else `false`.
         */
        function baseUnset(object, path) {
          path = castPath(path, object)
          object = parent(object, path)
          return object == null || delete object[toKey(last(path))]
        }

        /**
         * The base implementation of `_.update`.
         *
         * @private
         * @param {Object} object The object to modify.
         * @param {Array|string} path The path of the property to update.
         * @param {Function} updater The function to produce the updated value.
         * @param {Function} [customizer] The function to customize path creation.
         * @returns {Object} Returns `object`.
         */
        function baseUpdate(object, path, updater, customizer) {
          return baseSet(
            object,
            path,
            updater(baseGet(object, path)),
            customizer
          )
        }

        /**
         * The base implementation of methods like `_.dropWhile` and `_.takeWhile`
         * without support for iteratee shorthands.
         *
         * @private
         * @param {Array} array The array to query.
         * @param {Function} predicate The function invoked per iteration.
         * @param {boolean} [isDrop] Specify dropping elements instead of taking them.
         * @param {boolean} [fromRight] Specify iterating from right to left.
         * @returns {Array} Returns the slice of `array`.
         */
        function baseWhile(array, predicate, isDrop, fromRight) {
          var length = array.length,
            index = fromRight ? length : -1

          while (
            (fromRight ? index-- : ++index < length) &&
            predicate(array[index], index, array)
          ) {}

          return isDrop
            ? baseSlice(
                array,
                fromRight ? 0 : index,
                fromRight ? index + 1 : length
              )
            : baseSlice(
                array,
                fromRight ? index + 1 : 0,
                fromRight ? length : index
              )
        }

        /**
         * The base implementation of `wrapperValue` which returns the result of
         * performing a sequence of actions on the unwrapped `value`, where each
         * successive action is supplied the return value of the previous.
         *
         * @private
         * @param {*} value The unwrapped value.
         * @param {Array} actions Actions to perform to resolve the unwrapped value.
         * @returns {*} Returns the resolved value.
         */
        function baseWrapperValue(value, actions) {
          var result = value
          if (result instanceof LazyWrapper) {
            result = result.value()
          }
          return arrayReduce(
            actions,
            function(result, action) {
              return action.func.apply(
                action.thisArg,
                arrayPush([result], action.args)
              )
            },
            result
          )
        }

        /**
         * The base implementation of methods like `_.xor`, without support for
         * iteratee shorthands, that accepts an array of arrays to inspect.
         *
         * @private
         * @param {Array} arrays The arrays to inspect.
         * @param {Function} [iteratee] The iteratee invoked per element.
         * @param {Function} [comparator] The comparator invoked per element.
         * @returns {Array} Returns the new array of values.
         */
        function baseXor(arrays, iteratee, comparator) {
          var length = arrays.length
          if (length < 2) {
            return length ? baseUniq(arrays[0]) : []
          }
          var index = -1,
            result = Array(length)

          while (++index < length) {
            var array = arrays[index],
              othIndex = -1

            while (++othIndex < length) {
              if (othIndex != index) {
                result[index] = baseDifference(
                  result[index] || array,
                  arrays[othIndex],
                  iteratee,
                  comparator
                )
              }
            }
          }
          return baseUniq(baseFlatten(result, 1), iteratee, comparator)
        }

        /**
         * This base implementation of `_.zipObject` which assigns values using `assignFunc`.
         *
         * @private
         * @param {Array} props The property identifiers.
         * @param {Array} values The property values.
         * @param {Function} assignFunc The function to assign values.
         * @returns {Object} Returns the new object.
         */
        function baseZipObject(props, values, assignFunc) {
          var index = -1,
            length = props.length,
            valsLength = values.length,
            result = {}

          while (++index < length) {
            var value = index < valsLength ? values[index] : undefined$1
            assignFunc(result, props[index], value)
          }
          return result
        }

        /**
         * Casts `value` to an empty array if it's not an array like object.
         *
         * @private
         * @param {*} value The value to inspect.
         * @returns {Array|Object} Returns the cast array-like object.
         */
        function castArrayLikeObject(value) {
          return isArrayLikeObject(value) ? value : []
        }

        /**
         * Casts `value` to `identity` if it's not a function.
         *
         * @private
         * @param {*} value The value to inspect.
         * @returns {Function} Returns cast function.
         */
        function castFunction(value) {
          return typeof value == "function" ? value : identity
        }

        /**
         * Casts `value` to a path array if it's not one.
         *
         * @private
         * @param {*} value The value to inspect.
         * @param {Object} [object] The object to query keys on.
         * @returns {Array} Returns the cast property path array.
         */
        function castPath(value, object) {
          if (isArray(value)) {
            return value
          }
          return isKey(value, object) ? [value] : stringToPath(toString(value))
        }

        /**
         * A `baseRest` alias which can be replaced with `identity` by module
         * replacement plugins.
         *
         * @private
         * @type {Function}
         * @param {Function} func The function to apply a rest parameter to.
         * @returns {Function} Returns the new function.
         */
        var castRest = baseRest

        /**
         * Casts `array` to a slice if it's needed.
         *
         * @private
         * @param {Array} array The array to inspect.
         * @param {number} start The start position.
         * @param {number} [end=array.length] The end position.
         * @returns {Array} Returns the cast slice.
         */
        function castSlice(array, start, end) {
          var length = array.length
          end = end === undefined$1 ? length : end
          return !start && end >= length ? array : baseSlice(array, start, end)
        }

        /**
         * A simple wrapper around the global [`clearTimeout`](https://mdn.io/clearTimeout).
         *
         * @private
         * @param {number|Object} id The timer id or timeout object of the timer to clear.
         */
        var clearTimeout =
          ctxClearTimeout ||
          function(id) {
            return root.clearTimeout(id)
          }

        /**
         * Creates a clone of  `buffer`.
         *
         * @private
         * @param {Buffer} buffer The buffer to clone.
         * @param {boolean} [isDeep] Specify a deep clone.
         * @returns {Buffer} Returns the cloned buffer.
         */
        function cloneBuffer(buffer, isDeep) {
          if (isDeep) {
            return buffer.slice()
          }
          var length = buffer.length,
            result = allocUnsafe
              ? allocUnsafe(length)
              : new buffer.constructor(length)

          buffer.copy(result)
          return result
        }

        /**
         * Creates a clone of `arrayBuffer`.
         *
         * @private
         * @param {ArrayBuffer} arrayBuffer The array buffer to clone.
         * @returns {ArrayBuffer} Returns the cloned array buffer.
         */
        function cloneArrayBuffer(arrayBuffer) {
          var result = new arrayBuffer.constructor(arrayBuffer.byteLength)
          new Uint8Array(result).set(new Uint8Array(arrayBuffer))
          return result
        }

        /**
         * Creates a clone of `dataView`.
         *
         * @private
         * @param {Object} dataView The data view to clone.
         * @param {boolean} [isDeep] Specify a deep clone.
         * @returns {Object} Returns the cloned data view.
         */
        function cloneDataView(dataView, isDeep) {
          var buffer = isDeep
            ? cloneArrayBuffer(dataView.buffer)
            : dataView.buffer
          return new dataView.constructor(
            buffer,
            dataView.byteOffset,
            dataView.byteLength
          )
        }

        /**
         * Creates a clone of `regexp`.
         *
         * @private
         * @param {Object} regexp The regexp to clone.
         * @returns {Object} Returns the cloned regexp.
         */
        function cloneRegExp(regexp) {
          var result = new regexp.constructor(
            regexp.source,
            reFlags.exec(regexp)
          )
          result.lastIndex = regexp.lastIndex
          return result
        }

        /**
         * Creates a clone of the `symbol` object.
         *
         * @private
         * @param {Object} symbol The symbol object to clone.
         * @returns {Object} Returns the cloned symbol object.
         */
        function cloneSymbol(symbol) {
          return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {}
        }

        /**
         * Creates a clone of `typedArray`.
         *
         * @private
         * @param {Object} typedArray The typed array to clone.
         * @param {boolean} [isDeep] Specify a deep clone.
         * @returns {Object} Returns the cloned typed array.
         */
        function cloneTypedArray(typedArray, isDeep) {
          var buffer = isDeep
            ? cloneArrayBuffer(typedArray.buffer)
            : typedArray.buffer
          return new typedArray.constructor(
            buffer,
            typedArray.byteOffset,
            typedArray.length
          )
        }

        /**
         * Compares values to sort them in ascending order.
         *
         * @private
         * @param {*} value The value to compare.
         * @param {*} other The other value to compare.
         * @returns {number} Returns the sort order indicator for `value`.
         */
        function compareAscending(value, other) {
          if (value !== other) {
            var valIsDefined = value !== undefined$1,
              valIsNull = value === null,
              valIsReflexive = value === value,
              valIsSymbol = isSymbol(value)

            var othIsDefined = other !== undefined$1,
              othIsNull = other === null,
              othIsReflexive = other === other,
              othIsSymbol = isSymbol(other)

            if (
              (!othIsNull && !othIsSymbol && !valIsSymbol && value > other) ||
              (valIsSymbol &&
                othIsDefined &&
                othIsReflexive &&
                !othIsNull &&
                !othIsSymbol) ||
              (valIsNull && othIsDefined && othIsReflexive) ||
              (!valIsDefined && othIsReflexive) ||
              !valIsReflexive
            ) {
              return 1
            }
            if (
              (!valIsNull && !valIsSymbol && !othIsSymbol && value < other) ||
              (othIsSymbol &&
                valIsDefined &&
                valIsReflexive &&
                !valIsNull &&
                !valIsSymbol) ||
              (othIsNull && valIsDefined && valIsReflexive) ||
              (!othIsDefined && valIsReflexive) ||
              !othIsReflexive
            ) {
              return -1
            }
          }
          return 0
        }

        /**
         * Used by `_.orderBy` to compare multiple properties of a value to another
         * and stable sort them.
         *
         * If `orders` is unspecified, all values are sorted in ascending order. Otherwise,
         * specify an order of "desc" for descending or "asc" for ascending sort order
         * of corresponding values.
         *
         * @private
         * @param {Object} object The object to compare.
         * @param {Object} other The other object to compare.
         * @param {boolean[]|string[]} orders The order to sort by for each property.
         * @returns {number} Returns the sort order indicator for `object`.
         */
        function compareMultiple(object, other, orders) {
          var index = -1,
            objCriteria = object.criteria,
            othCriteria = other.criteria,
            length = objCriteria.length,
            ordersLength = orders.length

          while (++index < length) {
            var result = compareAscending(
              objCriteria[index],
              othCriteria[index]
            )
            if (result) {
              if (index >= ordersLength) {
                return result
              }
              var order = orders[index]
              return result * (order == "desc" ? -1 : 1)
            }
          }
          // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications
          // that causes it, under certain circumstances, to provide the same value for
          // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247
          // for more details.
          //
          // This also ensures a stable sort in V8 and other engines.
          // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details.
          return object.index - other.index
        }

        /**
         * Creates an array that is the composition of partially applied arguments,
         * placeholders, and provided arguments into a single array of arguments.
         *
         * @private
         * @param {Array} args The provided arguments.
         * @param {Array} partials The arguments to prepend to those provided.
         * @param {Array} holders The `partials` placeholder indexes.
         * @params {boolean} [isCurried] Specify composing for a curried function.
         * @returns {Array} Returns the new array of composed arguments.
         */
        function composeArgs(args, partials, holders, isCurried) {
          var argsIndex = -1,
            argsLength = args.length,
            holdersLength = holders.length,
            leftIndex = -1,
            leftLength = partials.length,
            rangeLength = nativeMax(argsLength - holdersLength, 0),
            result = Array(leftLength + rangeLength),
            isUncurried = !isCurried

          while (++leftIndex < leftLength) {
            result[leftIndex] = partials[leftIndex]
          }
          while (++argsIndex < holdersLength) {
            if (isUncurried || argsIndex < argsLength) {
              result[holders[argsIndex]] = args[argsIndex]
            }
          }
          while (rangeLength--) {
            result[leftIndex++] = args[argsIndex++]
          }
          return result
        }

        /**
         * This function is like `composeArgs` except that the arguments composition
         * is tailored for `_.partialRight`.
         *
         * @private
         * @param {Array} args The provided arguments.
         * @param {Array} partials The arguments to append to those provided.
         * @param {Array} holders The `partials` placeholder indexes.
         * @params {boolean} [isCurried] Specify composing for a curried function.
         * @returns {Array} Returns the new array of composed arguments.
         */
        function composeArgsRight(args, partials, holders, isCurried) {
          var argsIndex = -1,
            argsLength = args.length,
            holdersIndex = -1,
            holdersLength = holders.length,
            rightIndex = -1,
            rightLength = partials.length,
            rangeLength = nativeMax(argsLength - holdersLength, 0),
            result = Array(rangeLength + rightLength),
            isUncurried = !isCurried

          while (++argsIndex < rangeLength) {
            result[argsIndex] = args[argsIndex]
          }
          var offset = argsIndex
          while (++rightIndex < rightLength) {
            result[offset + rightIndex] = partials[rightIndex]
          }
          while (++holdersIndex < holdersLength) {
            if (isUncurried || argsIndex < argsLength) {
              result[offset + holders[holdersIndex]] = args[argsIndex++]
            }
          }
          return result
        }

        /**
         * Copies the values of `source` to `array`.
         *
         * @private
         * @param {Array} source The array to copy values from.
         * @param {Array} [array=[]] The array to copy values to.
         * @returns {Array} Returns `array`.
         */
        function copyArray(source, array) {
          var index = -1,
            length = source.length

          array || (array = Array(length))
          while (++index < length) {
            array[index] = source[index]
          }
          return array
        }

        /**
         * Copies properties of `source` to `object`.
         *
         * @private
         * @param {Object} source The object to copy properties from.
         * @param {Array} props The property identifiers to copy.
         * @param {Object} [object={}] The object to copy properties to.
         * @param {Function} [customizer] The function to customize copied values.
         * @returns {Object} Returns `object`.
         */
        function copyObject(source, props, object, customizer) {
          var isNew = !object
          object || (object = {})

          var index = -1,
            length = props.length

          while (++index < length) {
            var key = props[index]

            var newValue = customizer
              ? customizer(object[key], source[key], key, object, source)
              : undefined$1

            if (newValue === undefined$1) {
              newValue = source[key]
            }
            if (isNew) {
              baseAssignValue(object, key, newValue)
            } else {
              assignValue(object, key, newValue)
            }
          }
          return object
        }

        /**
         * Copies own symbols of `source` to `object`.
         *
         * @private
         * @param {Object} source The object to copy symbols from.
         * @param {Object} [object={}] The object to copy symbols to.
         * @returns {Object} Returns `object`.
         */
        function copySymbols(source, object) {
          return copyObject(source, getSymbols(source), object)
        }

        /**
         * Copies own and inherited symbols of `source` to `object`.
         *
         * @private
         * @param {Object} source The object to copy symbols from.
         * @param {Object} [object={}] The object to copy symbols to.
         * @returns {Object} Returns `object`.
         */
        function copySymbolsIn(source, object) {
          return copyObject(source, getSymbolsIn(source), object)
        }

        /**
         * Creates a function like `_.groupBy`.
         *
         * @private
         * @param {Function} setter The function to set accumulator values.
         * @param {Function} [initializer] The accumulator object initializer.
         * @returns {Function} Returns the new aggregator function.
         */
        function createAggregator(setter, initializer) {
          return function(collection, iteratee) {
            var func = isArray(collection) ? arrayAggregator : baseAggregator,
              accumulator = initializer ? initializer() : {}

            return func(
              collection,
              setter,
              getIteratee(iteratee, 2),
              accumulator
            )
          }
        }

        /**
         * Creates a function like `_.assign`.
         *
         * @private
         * @param {Function} assigner The function to assign values.
         * @returns {Function} Returns the new assigner function.
         */
        function createAssigner(assigner) {
          return baseRest(function(object, sources) {
            var index = -1,
              length = sources.length,
              customizer = length > 1 ? sources[length - 1] : undefined$1,
              guard = length > 2 ? sources[2] : undefined$1

            customizer =
              assigner.length > 3 && typeof customizer == "function"
                ? (length--, customizer)
                : undefined$1

            if (guard && isIterateeCall(sources[0], sources[1], guard)) {
              customizer = length < 3 ? undefined$1 : customizer
              length = 1
            }
            object = Object(object)
            while (++index < length) {
              var source = sources[index]
              if (source) {
                assigner(object, source, index, customizer)
              }
            }
            return object
          })
        }

        /**
         * Creates a `baseEach` or `baseEachRight` function.
         *
         * @private
         * @param {Function} eachFunc The function to iterate over a collection.
         * @param {boolean} [fromRight] Specify iterating from right to left.
         * @returns {Function} Returns the new base function.
         */
        function createBaseEach(eachFunc, fromRight) {
          return function(collection, iteratee) {
            if (collection == null) {
              return collection
            }
            if (!isArrayLike(collection)) {
              return eachFunc(collection, iteratee)
            }
            var length = collection.length,
              index = fromRight ? length : -1,
              iterable = Object(collection)

            while (fromRight ? index-- : ++index < length) {
              if (iteratee(iterable[index], index, iterable) === false) {
                break
              }
            }
            return collection
          }
        }

        /**
         * Creates a base function for methods like `_.forIn` and `_.forOwn`.
         *
         * @private
         * @param {boolean} [fromRight] Specify iterating from right to left.
         * @returns {Function} Returns the new base function.
         */
        function createBaseFor(fromRight) {
          return function(object, iteratee, keysFunc) {
            var index = -1,
              iterable = Object(object),
              props = keysFunc(object),
              length = props.length

            while (length--) {
              var key = props[fromRight ? length : ++index]
              if (iteratee(iterable[key], key, iterable) === false) {
                break
              }
            }
            return object
          }
        }

        /**
         * Creates a function that wraps `func` to invoke it with the optional `this`
         * binding of `thisArg`.
         *
         * @private
         * @param {Function} func The function to wrap.
         * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
         * @param {*} [thisArg] The `this` binding of `func`.
         * @returns {Function} Returns the new wrapped function.
         */
        function createBind(func, bitmask, thisArg) {
          var isBind = bitmask & WRAP_BIND_FLAG,
            Ctor = createCtor(func)

          function wrapper() {
            var fn =
              this && this !== root && this instanceof wrapper ? Ctor : func
            return fn.apply(isBind ? thisArg : this, arguments)
          }
          return wrapper
        }

        /**
         * Creates a function like `_.lowerFirst`.
         *
         * @private
         * @param {string} methodName The name of the `String` case method to use.
         * @returns {Function} Returns the new case function.
         */
        function createCaseFirst(methodName) {
          return function(string) {
            string = toString(string)

            var strSymbols = hasUnicode(string)
              ? stringToArray(string)
              : undefined$1

            var chr = strSymbols ? strSymbols[0] : string.charAt(0)

            var trailing = strSymbols
              ? castSlice(strSymbols, 1).join("")
              : string.slice(1)

            return chr[methodName]() + trailing
          }
        }

        /**
         * Creates a function like `_.camelCase`.
         *
         * @private
         * @param {Function} callback The function to combine each word.
         * @returns {Function} Returns the new compounder function.
         */
        function createCompounder(callback) {
          return function(string) {
            return arrayReduce(
              words(deburr(string).replace(reApos, "")),
              callback,
              ""
            )
          }
        }

        /**
         * Creates a function that produces an instance of `Ctor` regardless of
         * whether it was invoked as part of a `new` expression or by `call` or `apply`.
         *
         * @private
         * @param {Function} Ctor The constructor to wrap.
         * @returns {Function} Returns the new wrapped function.
         */
        function createCtor(Ctor) {
          return function() {
            // Use a `switch` statement to work with class constructors. See
            // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist
            // for more details.
            var args = arguments
            switch (args.length) {
              case 0:
                return new Ctor()
              case 1:
                return new Ctor(args[0])
              case 2:
                return new Ctor(args[0], args[1])
              case 3:
                return new Ctor(args[0], args[1], args[2])
              case 4:
                return new Ctor(args[0], args[1], args[2], args[3])
              case 5:
                return new Ctor(args[0], args[1], args[2], args[3], args[4])
              case 6:
                return new Ctor(
                  args[0],
                  args[1],
                  args[2],
                  args[3],
                  args[4],
                  args[5]
                )
              case 7:
                return new Ctor(
                  args[0],
                  args[1],
                  args[2],
                  args[3],
                  args[4],
                  args[5],
                  args[6]
                )
            }
            var thisBinding = baseCreate(Ctor.prototype),
              result = Ctor.apply(thisBinding, args)

            // Mimic the constructor's `return` behavior.
            // See https://es5.github.io/#x13.2.2 for more details.
            return isObject(result) ? result : thisBinding
          }
        }

        /**
         * Creates a function that wraps `func` to enable currying.
         *
         * @private
         * @param {Function} func The function to wrap.
         * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
         * @param {number} arity The arity of `func`.
         * @returns {Function} Returns the new wrapped function.
         */
        function createCurry(func, bitmask, arity) {
          var Ctor = createCtor(func)

          function wrapper() {
            var length = arguments.length,
              args = Array(length),
              index = length,
              placeholder = getHolder(wrapper)

            while (index--) {
              args[index] = arguments[index]
            }
            var holders =
              length < 3 &&
              args[0] !== placeholder &&
              args[length - 1] !== placeholder
                ? []
                : replaceHolders(args, placeholder)

            length -= holders.length
            if (length < arity) {
              return createRecurry(
                func,
                bitmask,
                createHybrid,
                wrapper.placeholder,
                undefined$1,
                args,
                holders,
                undefined$1,
                undefined$1,
                arity - length
              )
            }
            var fn =
              this && this !== root && this instanceof wrapper ? Ctor : func
            return apply(fn, this, args)
          }
          return wrapper
        }

        /**
         * Creates a `_.find` or `_.findLast` function.
         *
         * @private
         * @param {Function} findIndexFunc The function to find the collection index.
         * @returns {Function} Returns the new find function.
         */
        function createFind(findIndexFunc) {
          return function(collection, predicate, fromIndex) {
            var iterable = Object(collection)
            if (!isArrayLike(collection)) {
              var iteratee = getIteratee(predicate, 3)
              collection = keys(collection)
              predicate = function(key) {
                return iteratee(iterable[key], key, iterable)
              }
            }
            var index = findIndexFunc(collection, predicate, fromIndex)
            return index > -1
              ? iterable[iteratee ? collection[index] : index]
              : undefined$1
          }
        }

        /**
         * Creates a `_.flow` or `_.flowRight` function.
         *
         * @private
         * @param {boolean} [fromRight] Specify iterating from right to left.
         * @returns {Function} Returns the new flow function.
         */
        function createFlow(fromRight) {
          return flatRest(function(funcs) {
            var length = funcs.length,
              index = length,
              prereq = LodashWrapper.prototype.thru

            if (fromRight) {
              funcs.reverse()
            }
            while (index--) {
              var func = funcs[index]
              if (typeof func != "function") {
                throw new TypeError(FUNC_ERROR_TEXT)
              }
              if (prereq && !wrapper && getFuncName(func) == "wrapper") {
                var wrapper = new LodashWrapper([], true)
              }
            }
            index = wrapper ? index : length
            while (++index < length) {
              func = funcs[index]

              var funcName = getFuncName(func),
                data = funcName == "wrapper" ? getData(func) : undefined$1

              if (
                data &&
                isLaziable(data[0]) &&
                data[1] ==
                  (WRAP_ARY_FLAG |
                    WRAP_CURRY_FLAG |
                    WRAP_PARTIAL_FLAG |
                    WRAP_REARG_FLAG) &&
                !data[4].length &&
                data[9] == 1
              ) {
                wrapper = wrapper[getFuncName(data[0])].apply(wrapper, data[3])
              } else {
                wrapper =
                  func.length == 1 && isLaziable(func)
                    ? wrapper[funcName]()
                    : wrapper.thru(func)
              }
            }
            return function() {
              var args = arguments,
                value = args[0]

              if (wrapper && args.length == 1 && isArray(value)) {
                return wrapper.plant(value).value()
              }
              var index = 0,
                result = length ? funcs[index].apply(this, args) : value

              while (++index < length) {
                result = funcs[index].call(this, result)
              }
              return result
            }
          })
        }

        /**
         * Creates a function that wraps `func` to invoke it with optional `this`
         * binding of `thisArg`, partial application, and currying.
         *
         * @private
         * @param {Function|string} func The function or method name to wrap.
         * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
         * @param {*} [thisArg] The `this` binding of `func`.
         * @param {Array} [partials] The arguments to prepend to those provided to
         *  the new function.
         * @param {Array} [holders] The `partials` placeholder indexes.
         * @param {Array} [partialsRight] The arguments to append to those provided
         *  to the new function.
         * @param {Array} [holdersRight] The `partialsRight` placeholder indexes.
         * @param {Array} [argPos] The argument positions of the new function.
         * @param {number} [ary] The arity cap of `func`.
         * @param {number} [arity] The arity of `func`.
         * @returns {Function} Returns the new wrapped function.
         */
        function createHybrid(
          func,
          bitmask,
          thisArg,
          partials,
          holders,
          partialsRight,
          holdersRight,
          argPos,
          ary,
          arity
        ) {
          var isAry = bitmask & WRAP_ARY_FLAG,
            isBind = bitmask & WRAP_BIND_FLAG,
            isBindKey = bitmask & WRAP_BIND_KEY_FLAG,
            isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG),
            isFlip = bitmask & WRAP_FLIP_FLAG,
            Ctor = isBindKey ? undefined$1 : createCtor(func)

          function wrapper() {
            var length = arguments.length,
              args = Array(length),
              index = length

            while (index--) {
              args[index] = arguments[index]
            }
            if (isCurried) {
              var placeholder = getHolder(wrapper),
                holdersCount = countHolders(args, placeholder)
            }
            if (partials) {
              args = composeArgs(args, partials, holders, isCurried)
            }
            if (partialsRight) {
              args = composeArgsRight(
                args,
                partialsRight,
                holdersRight,
                isCurried
              )
            }
            length -= holdersCount
            if (isCurried && length < arity) {
              var newHolders = replaceHolders(args, placeholder)
              return createRecurry(
                func,
                bitmask,
                createHybrid,
                wrapper.placeholder,
                thisArg,
                args,
                newHolders,
                argPos,
                ary,
                arity - length
              )
            }
            var thisBinding = isBind ? thisArg : this,
              fn = isBindKey ? thisBinding[func] : func

            length = args.length
            if (argPos) {
              args = reorder(args, argPos)
            } else if (isFlip && length > 1) {
              args.reverse()
            }
            if (isAry && ary < length) {
              args.length = ary
            }
            if (this && this !== root && this instanceof wrapper) {
              fn = Ctor || createCtor(fn)
            }
            return fn.apply(thisBinding, args)
          }
          return wrapper
        }

        /**
         * Creates a function like `_.invertBy`.
         *
         * @private
         * @param {Function} setter The function to set accumulator values.
         * @param {Function} toIteratee The function to resolve iteratees.
         * @returns {Function} Returns the new inverter function.
         */
        function createInverter(setter, toIteratee) {
          return function(object, iteratee) {
            return baseInverter(object, setter, toIteratee(iteratee), {})
          }
        }

        /**
         * Creates a function that performs a mathematical operation on two values.
         *
         * @private
         * @param {Function} operator The function to perform the operation.
         * @param {number} [defaultValue] The value used for `undefined` arguments.
         * @returns {Function} Returns the new mathematical operation function.
         */
        function createMathOperation(operator, defaultValue) {
          return function(value, other) {
            var result
            if (value === undefined$1 && other === undefined$1) {
              return defaultValue
            }
            if (value !== undefined$1) {
              result = value
            }
            if (other !== undefined$1) {
              if (result === undefined$1) {
                return other
              }
              if (typeof value == "string" || typeof other == "string") {
                value = baseToString(value)
                other = baseToString(other)
              } else {
                value = baseToNumber(value)
                other = baseToNumber(other)
              }
              result = operator(value, other)
            }
            return result
          }
        }

        /**
         * Creates a function like `_.over`.
         *
         * @private
         * @param {Function} arrayFunc The function to iterate over iteratees.
         * @returns {Function} Returns the new over function.
         */
        function createOver(arrayFunc) {
          return flatRest(function(iteratees) {
            iteratees = arrayMap(iteratees, baseUnary(getIteratee()))
            return baseRest(function(args) {
              var thisArg = this
              return arrayFunc(iteratees, function(iteratee) {
                return apply(iteratee, thisArg, args)
              })
            })
          })
        }

        /**
         * Creates the padding for `string` based on `length`. The `chars` string
         * is truncated if the number of characters exceeds `length`.
         *
         * @private
         * @param {number} length The padding length.
         * @param {string} [chars=' '] The string used as padding.
         * @returns {string} Returns the padding for `string`.
         */
        function createPadding(length, chars) {
          chars = chars === undefined$1 ? " " : baseToString(chars)

          var charsLength = chars.length
          if (charsLength < 2) {
            return charsLength ? baseRepeat(chars, length) : chars
          }
          var result = baseRepeat(chars, nativeCeil(length / stringSize(chars)))
          return hasUnicode(chars)
            ? castSlice(stringToArray(result), 0, length).join("")
            : result.slice(0, length)
        }

        /**
         * Creates a function that wraps `func` to invoke it with the `this` binding
         * of `thisArg` and `partials` prepended to the arguments it receives.
         *
         * @private
         * @param {Function} func The function to wrap.
         * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
         * @param {*} thisArg The `this` binding of `func`.
         * @param {Array} partials The arguments to prepend to those provided to
         *  the new function.
         * @returns {Function} Returns the new wrapped function.
         */
        function createPartial(func, bitmask, thisArg, partials) {
          var isBind = bitmask & WRAP_BIND_FLAG,
            Ctor = createCtor(func)

          function wrapper() {
            var argsIndex = -1,
              argsLength = arguments.length,
              leftIndex = -1,
              leftLength = partials.length,
              args = Array(leftLength + argsLength),
              fn =
                this && this !== root && this instanceof wrapper ? Ctor : func

            while (++leftIndex < leftLength) {
              args[leftIndex] = partials[leftIndex]
            }
            while (argsLength--) {
              args[leftIndex++] = arguments[++argsIndex]
            }
            return apply(fn, isBind ? thisArg : this, args)
          }
          return wrapper
        }

        /**
         * Creates a `_.range` or `_.rangeRight` function.
         *
         * @private
         * @param {boolean} [fromRight] Specify iterating from right to left.
         * @returns {Function} Returns the new range function.
         */
        function createRange(fromRight) {
          return function(start, end, step) {
            if (
              step &&
              typeof step != "number" &&
              isIterateeCall(start, end, step)
            ) {
              end = step = undefined$1
            }
            // Ensure the sign of `-0` is preserved.
            start = toFinite(start)
            if (end === undefined$1) {
              end = start
              start = 0
            } else {
              end = toFinite(end)
            }
            step =
              step === undefined$1 ? (start < end ? 1 : -1) : toFinite(step)
            return baseRange(start, end, step, fromRight)
          }
        }

        /**
         * Creates a function that performs a relational operation on two values.
         *
         * @private
         * @param {Function} operator The function to perform the operation.
         * @returns {Function} Returns the new relational operation function.
         */
        function createRelationalOperation(operator) {
          return function(value, other) {
            if (!(typeof value == "string" && typeof other == "string")) {
              value = toNumber(value)
              other = toNumber(other)
            }
            return operator(value, other)
          }
        }

        /**
         * Creates a function that wraps `func` to continue currying.
         *
         * @private
         * @param {Function} func The function to wrap.
         * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
         * @param {Function} wrapFunc The function to create the `func` wrapper.
         * @param {*} placeholder The placeholder value.
         * @param {*} [thisArg] The `this` binding of `func`.
         * @param {Array} [partials] The arguments to prepend to those provided to
         *  the new function.
         * @param {Array} [holders] The `partials` placeholder indexes.
         * @param {Array} [argPos] The argument positions of the new function.
         * @param {number} [ary] The arity cap of `func`.
         * @param {number} [arity] The arity of `func`.
         * @returns {Function} Returns the new wrapped function.
         */
        function createRecurry(
          func,
          bitmask,
          wrapFunc,
          placeholder,
          thisArg,
          partials,
          holders,
          argPos,
          ary,
          arity
        ) {
          var isCurry = bitmask & WRAP_CURRY_FLAG,
            newHolders = isCurry ? holders : undefined$1,
            newHoldersRight = isCurry ? undefined$1 : holders,
            newPartials = isCurry ? partials : undefined$1,
            newPartialsRight = isCurry ? undefined$1 : partials

          bitmask |= isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG
          bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG)

          if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) {
            bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG)
          }
          var newData = [
            func,
            bitmask,
            thisArg,
            newPartials,
            newHolders,
            newPartialsRight,
            newHoldersRight,
            argPos,
            ary,
            arity,
          ]

          var result = wrapFunc.apply(undefined$1, newData)
          if (isLaziable(func)) {
            setData(result, newData)
          }
          result.placeholder = placeholder
          return setWrapToString(result, func, bitmask)
        }

        /**
         * Creates a function like `_.round`.
         *
         * @private
         * @param {string} methodName The name of the `Math` method to use when rounding.
         * @returns {Function} Returns the new round function.
         */
        function createRound(methodName) {
          var func = Math[methodName]
          return function(number, precision) {
            number = toNumber(number)
            precision =
              precision == null ? 0 : nativeMin(toInteger(precision), 292)
            if (precision && nativeIsFinite(number)) {
              // Shift with exponential notation to avoid floating-point issues.
              // See [MDN](https://mdn.io/round#Examples) for more details.
              var pair = (toString(number) + "e").split("e"),
                value = func(pair[0] + "e" + (+pair[1] + precision))

              pair = (toString(value) + "e").split("e")
              return +(pair[0] + "e" + (+pair[1] - precision))
            }
            return func(number)
          }
        }

        /**
         * Creates a set object of `values`.
         *
         * @private
         * @param {Array} values The values to add to the set.
         * @returns {Object} Returns the new set.
         */
        var createSet = !(Set && 1 / setToArray(new Set([, -0]))[1] == INFINITY)
          ? noop
          : function(values) {
              return new Set(values)
            }

        /**
         * Creates a `_.toPairs` or `_.toPairsIn` function.
         *
         * @private
         * @param {Function} keysFunc The function to get the keys of a given object.
         * @returns {Function} Returns the new pairs function.
         */
        function createToPairs(keysFunc) {
          return function(object) {
            var tag = getTag(object)
            if (tag == mapTag) {
              return mapToArray(object)
            }
            if (tag == setTag) {
              return setToPairs(object)
            }
            return baseToPairs(object, keysFunc(object))
          }
        }

        /**
         * Creates a function that either curries or invokes `func` with optional
         * `this` binding and partially applied arguments.
         *
         * @private
         * @param {Function|string} func The function or method name to wrap.
         * @param {number} bitmask The bitmask flags.
         *    1 - `_.bind`
         *    2 - `_.bindKey`
         *    4 - `_.curry` or `_.curryRight` of a bound function
         *    8 - `_.curry`
         *   16 - `_.curryRight`
         *   32 - `_.partial`
         *   64 - `_.partialRight`
         *  128 - `_.rearg`
         *  256 - `_.ary`
         *  512 - `_.flip`
         * @param {*} [thisArg] The `this` binding of `func`.
         * @param {Array} [partials] The arguments to be partially applied.
         * @param {Array} [holders] The `partials` placeholder indexes.
         * @param {Array} [argPos] The argument positions of the new function.
         * @param {number} [ary] The arity cap of `func`.
         * @param {number} [arity] The arity of `func`.
         * @returns {Function} Returns the new wrapped function.
         */
        function createWrap(
          func,
          bitmask,
          thisArg,
          partials,
          holders,
          argPos,
          ary,
          arity
        ) {
          var isBindKey = bitmask & WRAP_BIND_KEY_FLAG
          if (!isBindKey && typeof func != "function") {
            throw new TypeError(FUNC_ERROR_TEXT)
          }
          var length = partials ? partials.length : 0
          if (!length) {
            bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG)
            partials = holders = undefined$1
          }
          ary = ary === undefined$1 ? ary : nativeMax(toInteger(ary), 0)
          arity = arity === undefined$1 ? arity : toInteger(arity)
          length -= holders ? holders.length : 0

          if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) {
            var partialsRight = partials,
              holdersRight = holders

            partials = holders = undefined$1
          }
          var data = isBindKey ? undefined$1 : getData(func)

          var newData = [
            func,
            bitmask,
            thisArg,
            partials,
            holders,
            partialsRight,
            holdersRight,
            argPos,
            ary,
            arity,
          ]

          if (data) {
            mergeData(newData, data)
          }
          func = newData[0]
          bitmask = newData[1]
          thisArg = newData[2]
          partials = newData[3]
          holders = newData[4]
          arity = newData[9] =
            newData[9] === undefined$1
              ? isBindKey
                ? 0
                : func.length
              : nativeMax(newData[9] - length, 0)

          if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) {
            bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)
          }
          if (!bitmask || bitmask == WRAP_BIND_FLAG) {
            var result = createBind(func, bitmask, thisArg)
          } else if (
            bitmask == WRAP_CURRY_FLAG ||
            bitmask == WRAP_CURRY_RIGHT_FLAG
          ) {
            result = createCurry(func, bitmask, arity)
          } else if (
            (bitmask == WRAP_PARTIAL_FLAG ||
              bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) &&
            !holders.length
          ) {
            result = createPartial(func, bitmask, thisArg, partials)
          } else {
            result = createHybrid.apply(undefined$1, newData)
          }
          var setter = data ? baseSetData : setData
          return setWrapToString(setter(result, newData), func, bitmask)
        }

        /**
         * Used by `_.defaults` to customize its `_.assignIn` use to assign properties
         * of source objects to the destination object for all destination properties
         * that resolve to `undefined`.
         *
         * @private
         * @param {*} objValue The destination value.
         * @param {*} srcValue The source value.
         * @param {string} key The key of the property to assign.
         * @param {Object} object The parent object of `objValue`.
         * @returns {*} Returns the value to assign.
         */
        function customDefaultsAssignIn(objValue, srcValue, key, object) {
          if (
            objValue === undefined$1 ||
            (eq(objValue, objectProto[key]) &&
              !hasOwnProperty.call(object, key))
          ) {
            return srcValue
          }
          return objValue
        }

        /**
         * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source
         * objects into destination objects that are passed thru.
         *
         * @private
         * @param {*} objValue The destination value.
         * @param {*} srcValue The source value.
         * @param {string} key The key of the property to merge.
         * @param {Object} object The parent object of `objValue`.
         * @param {Object} source The parent object of `srcValue`.
         * @param {Object} [stack] Tracks traversed source values and their merged
         *  counterparts.
         * @returns {*} Returns the value to assign.
         */
        function customDefaultsMerge(
          objValue,
          srcValue,
          key,
          object,
          source,
          stack
        ) {
          if (isObject(objValue) && isObject(srcValue)) {
            // Recursively merge objects and arrays (susceptible to call stack limits).
            stack.set(srcValue, objValue)
            baseMerge(
              objValue,
              srcValue,
              undefined$1,
              customDefaultsMerge,
              stack
            )
            stack["delete"](srcValue)
          }
          return objValue
        }

        /**
         * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain
         * objects.
         *
         * @private
         * @param {*} value The value to inspect.
         * @param {string} key The key of the property to inspect.
         * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`.
         */
        function customOmitClone(value) {
          return isPlainObject(value) ? undefined$1 : value
        }

        /**
         * A specialized version of `baseIsEqualDeep` for arrays with support for
         * partial deep comparisons.
         *
         * @private
         * @param {Array} array The array to compare.
         * @param {Array} other The other array to compare.
         * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
         * @param {Function} customizer The function to customize comparisons.
         * @param {Function} equalFunc The function to determine equivalents of values.
         * @param {Object} stack Tracks traversed `array` and `other` objects.
         * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.
         */
        function equalArrays(
          array,
          other,
          bitmask,
          customizer,
          equalFunc,
          stack
        ) {
          var isPartial = bitmask & COMPARE_PARTIAL_FLAG,
            arrLength = array.length,
            othLength = other.length

          if (arrLength != othLength && !(isPartial && othLength > arrLength)) {
            return false
          }
          // Assume cyclic values are equal.
          var stacked = stack.get(array)
          if (stacked && stack.get(other)) {
            return stacked == other
          }
          var index = -1,
            result = true,
            seen =
              bitmask & COMPARE_UNORDERED_FLAG ? new SetCache() : undefined$1

          stack.set(array, other)
          stack.set(other, array)

          // Ignore non-index properties.
          while (++index < arrLength) {
            var arrValue = array[index],
              othValue = other[index]

            if (customizer) {
              var compared = isPartial
                ? customizer(othValue, arrValue, index, other, array, stack)
                : customizer(arrValue, othValue, index, array, other, stack)
            }
            if (compared !== undefined$1) {
              if (compared) {
                continue
              }
              result = false
              break
            }
            // Recursively compare arrays (susceptible to call stack limits).
            if (seen) {
              if (
                !arraySome(other, function(othValue, othIndex) {
                  if (
                    !cacheHas(seen, othIndex) &&
                    (arrValue === othValue ||
                      equalFunc(arrValue, othValue, bitmask, customizer, stack))
                  ) {
                    return seen.push(othIndex)
                  }
                })
              ) {
                result = false
                break
              }
            } else if (
              !(
                arrValue === othValue ||
                equalFunc(arrValue, othValue, bitmask, customizer, stack)
              )
            ) {
              result = false
              break
            }
          }
          stack["delete"](array)
          stack["delete"](other)
          return result
        }

        /**
         * A specialized version of `baseIsEqualDeep` for comparing objects of
         * the same `toStringTag`.
         *
         * **Note:** This function only supports comparing values with tags of
         * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.
         *
         * @private
         * @param {Object} object The object to compare.
         * @param {Object} other The other object to compare.
         * @param {string} tag The `toStringTag` of the objects to compare.
         * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
         * @param {Function} customizer The function to customize comparisons.
         * @param {Function} equalFunc The function to determine equivalents of values.
         * @param {Object} stack Tracks traversed `object` and `other` objects.
         * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
         */
        function equalByTag(
          object,
          other,
          tag,
          bitmask,
          customizer,
          equalFunc,
          stack
        ) {
          switch (tag) {
            case dataViewTag:
              if (
                object.byteLength != other.byteLength ||
                object.byteOffset != other.byteOffset
              ) {
                return false
              }
              object = object.buffer
              other = other.buffer

            case arrayBufferTag:
              if (
                object.byteLength != other.byteLength ||
                !equalFunc(new Uint8Array(object), new Uint8Array(other))
              ) {
                return false
              }
              return true

            case boolTag:
            case dateTag:
            case numberTag:
              // Coerce booleans to `1` or `0` and dates to milliseconds.
              // Invalid dates are coerced to `NaN`.
              return eq(+object, +other)

            case errorTag:
              return (
                object.name == other.name && object.message == other.message
              )

            case regexpTag:
            case stringTag:
              // Coerce regexes to strings and treat strings, primitives and objects,
              // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring
              // for more details.
              return object == other + ""

            case mapTag:
              var convert = mapToArray

            case setTag:
              var isPartial = bitmask & COMPARE_PARTIAL_FLAG
              convert || (convert = setToArray)

              if (object.size != other.size && !isPartial) {
                return false
              }
              // Assume cyclic values are equal.
              var stacked = stack.get(object)
              if (stacked) {
                return stacked == other
              }
              bitmask |= COMPARE_UNORDERED_FLAG

              // Recursively compare objects (susceptible to call stack limits).
              stack.set(object, other)
              var result = equalArrays(
                convert(object),
                convert(other),
                bitmask,
                customizer,
                equalFunc,
                stack
              )
              stack["delete"](object)
              return result

            case symbolTag:
              if (symbolValueOf) {
                return symbolValueOf.call(object) == symbolValueOf.call(other)
              }
          }
          return false
        }

        /**
         * A specialized version of `baseIsEqualDeep` for objects with support for
         * partial deep comparisons.
         *
         * @private
         * @param {Object} object The object to compare.
         * @param {Object} other The other object to compare.
         * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
         * @param {Function} customizer The function to customize comparisons.
         * @param {Function} equalFunc The function to determine equivalents of values.
         * @param {Object} stack Tracks traversed `object` and `other` objects.
         * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
         */
        function equalObjects(
          object,
          other,
          bitmask,
          customizer,
          equalFunc,
          stack
        ) {
          var isPartial = bitmask & COMPARE_PARTIAL_FLAG,
            objProps = getAllKeys(object),
            objLength = objProps.length,
            othProps = getAllKeys(other),
            othLength = othProps.length

          if (objLength != othLength && !isPartial) {
            return false
          }
          var index = objLength
          while (index--) {
            var key = objProps[index]
            if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) {
              return false
            }
          }
          // Assume cyclic values are equal.
          var stacked = stack.get(object)
          if (stacked && stack.get(other)) {
            return stacked == other
          }
          var result = true
          stack.set(object, other)
          stack.set(other, object)

          var skipCtor = isPartial
          while (++index < objLength) {
            key = objProps[index]
            var objValue = object[key],
              othValue = other[key]

            if (customizer) {
              var compared = isPartial
                ? customizer(othValue, objValue, key, other, object, stack)
                : customizer(objValue, othValue, key, object, other, stack)
            }
            // Recursively compare objects (susceptible to call stack limits).
            if (
              !(compared === undefined$1
                ? objValue === othValue ||
                  equalFunc(objValue, othValue, bitmask, customizer, stack)
                : compared)
            ) {
              result = false
              break
            }
            skipCtor || (skipCtor = key == "constructor")
          }
          if (result && !skipCtor) {
            var objCtor = object.constructor,
              othCtor = other.constructor

            // Non `Object` object instances with different constructors are not equal.
            if (
              objCtor != othCtor &&
              "constructor" in object &&
              "constructor" in other &&
              !(
                typeof objCtor == "function" &&
                objCtor instanceof objCtor &&
                typeof othCtor == "function" &&
                othCtor instanceof othCtor
              )
            ) {
              result = false
            }
          }
          stack["delete"](object)
          stack["delete"](other)
          return result
        }

        /**
         * A specialized version of `baseRest` which flattens the rest array.
         *
         * @private
         * @param {Function} func The function to apply a rest parameter to.
         * @returns {Function} Returns the new function.
         */
        function flatRest(func) {
          return setToString(overRest(func, undefined$1, flatten), func + "")
        }

        /**
         * Creates an array of own enumerable property names and symbols of `object`.
         *
         * @private
         * @param {Object} object The object to query.
         * @returns {Array} Returns the array of property names and symbols.
         */
        function getAllKeys(object) {
          return baseGetAllKeys(object, keys, getSymbols)
        }

        /**
         * Creates an array of own and inherited enumerable property names and
         * symbols of `object`.
         *
         * @private
         * @param {Object} object The object to query.
         * @returns {Array} Returns the array of property names and symbols.
         */
        function getAllKeysIn(object) {
          return baseGetAllKeys(object, keysIn, getSymbolsIn)
        }

        /**
         * Gets metadata for `func`.
         *
         * @private
         * @param {Function} func The function to query.
         * @returns {*} Returns the metadata for `func`.
         */
        var getData = !metaMap
          ? noop
          : function(func) {
              return metaMap.get(func)
            }

        /**
         * Gets the name of `func`.
         *
         * @private
         * @param {Function} func The function to query.
         * @returns {string} Returns the function name.
         */
        function getFuncName(func) {
          var result = func.name + "",
            array = realNames[result],
            length = hasOwnProperty.call(realNames, result) ? array.length : 0

          while (length--) {
            var data = array[length],
              otherFunc = data.func
            if (otherFunc == null || otherFunc == func) {
              return data.name
            }
          }
          return result
        }

        /**
         * Gets the argument placeholder value for `func`.
         *
         * @private
         * @param {Function} func The function to inspect.
         * @returns {*} Returns the placeholder value.
         */
        function getHolder(func) {
          var object = hasOwnProperty.call(lodash, "placeholder")
            ? lodash
            : func
          return object.placeholder
        }

        /**
         * Gets the appropriate "iteratee" function. If `_.iteratee` is customized,
         * this function returns the custom method, otherwise it returns `baseIteratee`.
         * If arguments are provided, the chosen function is invoked with them and
         * its result is returned.
         *
         * @private
         * @param {*} [value] The value to convert to an iteratee.
         * @param {number} [arity] The arity of the created iteratee.
         * @returns {Function} Returns the chosen function or its result.
         */
        function getIteratee() {
          var result = lodash.iteratee || iteratee
          result = result === iteratee ? baseIteratee : result
          return arguments.length ? result(arguments[0], arguments[1]) : result
        }

        /**
         * Gets the data for `map`.
         *
         * @private
         * @param {Object} map The map to query.
         * @param {string} key The reference key.
         * @returns {*} Returns the map data.
         */
        function getMapData(map, key) {
          var data = map.__data__
          return isKeyable(key)
            ? data[typeof key == "string" ? "string" : "hash"]
            : data.map
        }

        /**
         * Gets the property names, values, and compare flags of `object`.
         *
         * @private
         * @param {Object} object The object to query.
         * @returns {Array} Returns the match data of `object`.
         */
        function getMatchData(object) {
          var result = keys(object),
            length = result.length

          while (length--) {
            var key = result[length],
              value = object[key]

            result[length] = [key, value, isStrictComparable(value)]
          }
          return result
        }

        /**
         * Gets the native function at `key` of `object`.
         *
         * @private
         * @param {Object} object The object to query.
         * @param {string} key The key of the method to get.
         * @returns {*} Returns the function if it's native, else `undefined`.
         */
        function getNative(object, key) {
          var value = getValue(object, key)
          return baseIsNative(value) ? value : undefined$1
        }

        /**
         * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.
         *
         * @private
         * @param {*} value The value to query.
         * @returns {string} Returns the raw `toStringTag`.
         */
        function getRawTag(value) {
          var isOwn = hasOwnProperty.call(value, symToStringTag),
            tag = value[symToStringTag]

          try {
            value[symToStringTag] = undefined$1
            var unmasked = true
          } catch (e) {}

          var result = nativeObjectToString.call(value)
          if (unmasked) {
            if (isOwn) {
              value[symToStringTag] = tag
            } else {
              delete value[symToStringTag]
            }
          }
          return result
        }

        /**
         * Creates an array of the own enumerable symbols of `object`.
         *
         * @private
         * @param {Object} object The object to query.
         * @returns {Array} Returns the array of symbols.
         */
        var getSymbols = !nativeGetSymbols
          ? stubArray
          : function(object) {
              if (object == null) {
                return []
              }
              object = Object(object)
              return arrayFilter(nativeGetSymbols(object), function(symbol) {
                return propertyIsEnumerable.call(object, symbol)
              })
            }

        /**
         * Creates an array of the own and inherited enumerable symbols of `object`.
         *
         * @private
         * @param {Object} object The object to query.
         * @returns {Array} Returns the array of symbols.
         */
        var getSymbolsIn = !nativeGetSymbols
          ? stubArray
          : function(object) {
              var result = []
              while (object) {
                arrayPush(result, getSymbols(object))
                object = getPrototype(object)
              }
              return result
            }

        /**
         * Gets the `toStringTag` of `value`.
         *
         * @private
         * @param {*} value The value to query.
         * @returns {string} Returns the `toStringTag`.
         */
        var getTag = baseGetTag

        // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6.
        if (
          (DataView &&
            getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||
          (Map && getTag(new Map()) != mapTag) ||
          (Promise && getTag(Promise.resolve()) != promiseTag) ||
          (Set && getTag(new Set()) != setTag) ||
          (WeakMap && getTag(new WeakMap()) != weakMapTag)
        ) {
          getTag = function(value) {
            var result = baseGetTag(value),
              Ctor = result == objectTag ? value.constructor : undefined$1,
              ctorString = Ctor ? toSource(Ctor) : ""

            if (ctorString) {
              switch (ctorString) {
                case dataViewCtorString:
                  return dataViewTag
                case mapCtorString:
                  return mapTag
                case promiseCtorString:
                  return promiseTag
                case setCtorString:
                  return setTag
                case weakMapCtorString:
                  return weakMapTag
              }
            }
            return result
          }
        }

        /**
         * Gets the view, applying any `transforms` to the `start` and `end` positions.
         *
         * @private
         * @param {number} start The start of the view.
         * @param {number} end The end of the view.
         * @param {Array} transforms The transformations to apply to the view.
         * @returns {Object} Returns an object containing the `start` and `end`
         *  positions of the view.
         */
        function getView(start, end, transforms) {
          var index = -1,
            length = transforms.length

          while (++index < length) {
            var data = transforms[index],
              size = data.size

            switch (data.type) {
              case "drop":
                start += size
                break
              case "dropRight":
                end -= size
                break
              case "take":
                end = nativeMin(end, start + size)
                break
              case "takeRight":
                start = nativeMax(start, end - size)
                break
            }
          }
          return { start: start, end: end }
        }

        /**
         * Extracts wrapper details from the `source` body comment.
         *
         * @private
         * @param {string} source The source to inspect.
         * @returns {Array} Returns the wrapper details.
         */
        function getWrapDetails(source) {
          var match = source.match(reWrapDetails)
          return match ? match[1].split(reSplitDetails) : []
        }

        /**
         * Checks if `path` exists on `object`.
         *
         * @private
         * @param {Object} object The object to query.
         * @param {Array|string} path The path to check.
         * @param {Function} hasFunc The function to check properties.
         * @returns {boolean} Returns `true` if `path` exists, else `false`.
         */
        function hasPath(object, path, hasFunc) {
          path = castPath(path, object)

          var index = -1,
            length = path.length,
            result = false

          while (++index < length) {
            var key = toKey(path[index])
            if (!(result = object != null && hasFunc(object, key))) {
              break
            }
            object = object[key]
          }
          if (result || ++index != length) {
            return result
          }
          length = object == null ? 0 : object.length
          return (
            !!length &&
            isLength(length) &&
            isIndex(key, length) &&
            (isArray(object) || isArguments(object))
          )
        }

        /**
         * Initializes an array clone.
         *
         * @private
         * @param {Array} array The array to clone.
         * @returns {Array} Returns the initialized clone.
         */
        function initCloneArray(array) {
          var length = array.length,
            result = new array.constructor(length)

          // Add properties assigned by `RegExp#exec`.
          if (
            length &&
            typeof array[0] == "string" &&
            hasOwnProperty.call(array, "index")
          ) {
            result.index = array.index
            result.input = array.input
          }
          return result
        }

        /**
         * Initializes an object clone.
         *
         * @private
         * @param {Object} object The object to clone.
         * @returns {Object} Returns the initialized clone.
         */
        function initCloneObject(object) {
          return typeof object.constructor == "function" && !isPrototype(object)
            ? baseCreate(getPrototype(object))
            : {}
        }

        /**
         * Initializes an object clone based on its `toStringTag`.
         *
         * **Note:** This function only supports cloning values with tags of
         * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`.
         *
         * @private
         * @param {Object} object The object to clone.
         * @param {string} tag The `toStringTag` of the object to clone.
         * @param {boolean} [isDeep] Specify a deep clone.
         * @returns {Object} Returns the initialized clone.
         */
        function initCloneByTag(object, tag, isDeep) {
          var Ctor = object.constructor
          switch (tag) {
            case arrayBufferTag:
              return cloneArrayBuffer(object)

            case boolTag:
            case dateTag:
              return new Ctor(+object)

            case dataViewTag:
              return cloneDataView(object, isDeep)

            case float32Tag:
            case float64Tag:
            case int8Tag:
            case int16Tag:
            case int32Tag:
            case uint8Tag:
            case uint8ClampedTag:
            case uint16Tag:
            case uint32Tag:
              return cloneTypedArray(object, isDeep)

            case mapTag:
              return new Ctor()

            case numberTag:
            case stringTag:
              return new Ctor(object)

            case regexpTag:
              return cloneRegExp(object)

            case setTag:
              return new Ctor()

            case symbolTag:
              return cloneSymbol(object)
          }
        }

        /**
         * Inserts wrapper `details` in a comment at the top of the `source` body.
         *
         * @private
         * @param {string} source The source to modify.
         * @returns {Array} details The details to insert.
         * @returns {string} Returns the modified source.
         */
        function insertWrapDetails(source, details) {
          var length = details.length
          if (!length) {
            return source
          }
          var lastIndex = length - 1
          details[lastIndex] = (length > 1 ? "& " : "") + details[lastIndex]
          details = details.join(length > 2 ? ", " : " ")
          return source.replace(
            reWrapComment,
            "{\n/* [wrapped with " + details + "] */\n"
          )
        }

        /**
         * Checks if `value` is a flattenable `arguments` object or array.
         *
         * @private
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is flattenable, else `false`.
         */
        function isFlattenable(value) {
          return (
            isArray(value) ||
            isArguments(value) ||
            !!(spreadableSymbol && value && value[spreadableSymbol])
          )
        }

        /**
         * Checks if `value` is a valid array-like index.
         *
         * @private
         * @param {*} value The value to check.
         * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
         * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
         */
        function isIndex(value, length) {
          var type = typeof value
          length = length == null ? MAX_SAFE_INTEGER : length

          return (
            !!length &&
            (type == "number" || (type != "symbol" && reIsUint.test(value))) &&
            value > -1 &&
            value % 1 == 0 &&
            value < length
          )
        }

        /**
         * Checks if the given arguments are from an iteratee call.
         *
         * @private
         * @param {*} value The potential iteratee value argument.
         * @param {*} index The potential iteratee index or key argument.
         * @param {*} object The potential iteratee object argument.
         * @returns {boolean} Returns `true` if the arguments are from an iteratee call,
         *  else `false`.
         */
        function isIterateeCall(value, index, object) {
          if (!isObject(object)) {
            return false
          }
          var type = typeof index
          if (
            type == "number"
              ? isArrayLike(object) && isIndex(index, object.length)
              : type == "string" && index in object
          ) {
            return eq(object[index], value)
          }
          return false
        }

        /**
         * Checks if `value` is a property name and not a property path.
         *
         * @private
         * @param {*} value The value to check.
         * @param {Object} [object] The object to query keys on.
         * @returns {boolean} Returns `true` if `value` is a property name, else `false`.
         */
        function isKey(value, object) {
          if (isArray(value)) {
            return false
          }
          var type = typeof value
          if (
            type == "number" ||
            type == "symbol" ||
            type == "boolean" ||
            value == null ||
            isSymbol(value)
          ) {
            return true
          }
          return (
            reIsPlainProp.test(value) ||
            !reIsDeepProp.test(value) ||
            (object != null && value in Object(object))
          )
        }

        /**
         * Checks if `value` is suitable for use as unique object key.
         *
         * @private
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is suitable, else `false`.
         */
        function isKeyable(value) {
          var type = typeof value
          return type == "string" ||
            type == "number" ||
            type == "symbol" ||
            type == "boolean"
            ? value !== "__proto__"
            : value === null
        }

        /**
         * Checks if `func` has a lazy counterpart.
         *
         * @private
         * @param {Function} func The function to check.
         * @returns {boolean} Returns `true` if `func` has a lazy counterpart,
         *  else `false`.
         */
        function isLaziable(func) {
          var funcName = getFuncName(func),
            other = lodash[funcName]

          if (
            typeof other != "function" ||
            !(funcName in LazyWrapper.prototype)
          ) {
            return false
          }
          if (func === other) {
            return true
          }
          var data = getData(other)
          return !!data && func === data[0]
        }

        /**
         * Checks if `func` has its source masked.
         *
         * @private
         * @param {Function} func The function to check.
         * @returns {boolean} Returns `true` if `func` is masked, else `false`.
         */
        function isMasked(func) {
          return !!maskSrcKey && maskSrcKey in func
        }

        /**
         * Checks if `func` is capable of being masked.
         *
         * @private
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `func` is maskable, else `false`.
         */
        var isMaskable = coreJsData ? isFunction : stubFalse

        /**
         * Checks if `value` is likely a prototype object.
         *
         * @private
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.
         */
        function isPrototype(value) {
          var Ctor = value && value.constructor,
            proto = (typeof Ctor == "function" && Ctor.prototype) || objectProto

          return value === proto
        }

        /**
         * Checks if `value` is suitable for strict equality comparisons, i.e. `===`.
         *
         * @private
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` if suitable for strict
         *  equality comparisons, else `false`.
         */
        function isStrictComparable(value) {
          return value === value && !isObject(value)
        }

        /**
         * A specialized version of `matchesProperty` for source values suitable
         * for strict equality comparisons, i.e. `===`.
         *
         * @private
         * @param {string} key The key of the property to get.
         * @param {*} srcValue The value to match.
         * @returns {Function} Returns the new spec function.
         */
        function matchesStrictComparable(key, srcValue) {
          return function(object) {
            if (object == null) {
              return false
            }
            return (
              object[key] === srcValue &&
              (srcValue !== undefined$1 || key in Object(object))
            )
          }
        }

        /**
         * A specialized version of `_.memoize` which clears the memoized function's
         * cache when it exceeds `MAX_MEMOIZE_SIZE`.
         *
         * @private
         * @param {Function} func The function to have its output memoized.
         * @returns {Function} Returns the new memoized function.
         */
        function memoizeCapped(func) {
          var result = memoize(func, function(key) {
            if (cache.size === MAX_MEMOIZE_SIZE) {
              cache.clear()
            }
            return key
          })

          var cache = result.cache
          return result
        }

        /**
         * Merges the function metadata of `source` into `data`.
         *
         * Merging metadata reduces the number of wrappers used to invoke a function.
         * This is possible because methods like `_.bind`, `_.curry`, and `_.partial`
         * may be applied regardless of execution order. Methods like `_.ary` and
         * `_.rearg` modify function arguments, making the order in which they are
         * executed important, preventing the merging of metadata. However, we make
         * an exception for a safe combined case where curried functions have `_.ary`
         * and or `_.rearg` applied.
         *
         * @private
         * @param {Array} data The destination metadata.
         * @param {Array} source The source metadata.
         * @returns {Array} Returns `data`.
         */
        function mergeData(data, source) {
          var bitmask = data[1],
            srcBitmask = source[1],
            newBitmask = bitmask | srcBitmask,
            isCommon =
              newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG)

          var isCombo =
            (srcBitmask == WRAP_ARY_FLAG && bitmask == WRAP_CURRY_FLAG) ||
            (srcBitmask == WRAP_ARY_FLAG &&
              bitmask == WRAP_REARG_FLAG &&
              data[7].length <= source[8]) ||
            (srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG) &&
              source[7].length <= source[8] &&
              bitmask == WRAP_CURRY_FLAG)

          // Exit early if metadata can't be merged.
          if (!(isCommon || isCombo)) {
            return data
          }
          // Use source `thisArg` if available.
          if (srcBitmask & WRAP_BIND_FLAG) {
            data[2] = source[2]
            // Set when currying a bound function.
            newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG
          }
          // Compose partial arguments.
          var value = source[3]
          if (value) {
            var partials = data[3]
            data[3] = partials ? composeArgs(partials, value, source[4]) : value
            data[4] = partials
              ? replaceHolders(data[3], PLACEHOLDER)
              : source[4]
          }
          // Compose partial right arguments.
          value = source[5]
          if (value) {
            partials = data[5]
            data[5] = partials
              ? composeArgsRight(partials, value, source[6])
              : value
            data[6] = partials
              ? replaceHolders(data[5], PLACEHOLDER)
              : source[6]
          }
          // Use source `argPos` if available.
          value = source[7]
          if (value) {
            data[7] = value
          }
          // Use source `ary` if it's smaller.
          if (srcBitmask & WRAP_ARY_FLAG) {
            data[8] =
              data[8] == null ? source[8] : nativeMin(data[8], source[8])
          }
          // Use source `arity` if one is not provided.
          if (data[9] == null) {
            data[9] = source[9]
          }
          // Use source `func` and merge bitmasks.
          data[0] = source[0]
          data[1] = newBitmask

          return data
        }

        /**
         * This function is like
         * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
         * except that it includes inherited enumerable properties.
         *
         * @private
         * @param {Object} object The object to query.
         * @returns {Array} Returns the array of property names.
         */
        function nativeKeysIn(object) {
          var result = []
          if (object != null) {
            for (var key in Object(object)) {
              result.push(key)
            }
          }
          return result
        }

        /**
         * Converts `value` to a string using `Object.prototype.toString`.
         *
         * @private
         * @param {*} value The value to convert.
         * @returns {string} Returns the converted string.
         */
        function objectToString(value) {
          return nativeObjectToString.call(value)
        }

        /**
         * A specialized version of `baseRest` which transforms the rest array.
         *
         * @private
         * @param {Function} func The function to apply a rest parameter to.
         * @param {number} [start=func.length-1] The start position of the rest parameter.
         * @param {Function} transform The rest array transform.
         * @returns {Function} Returns the new function.
         */
        function overRest(func, start, transform) {
          start = nativeMax(start === undefined$1 ? func.length - 1 : start, 0)
          return function() {
            var args = arguments,
              index = -1,
              length = nativeMax(args.length - start, 0),
              array = Array(length)

            while (++index < length) {
              array[index] = args[start + index]
            }
            index = -1
            var otherArgs = Array(start + 1)
            while (++index < start) {
              otherArgs[index] = args[index]
            }
            otherArgs[start] = transform(array)
            return apply(func, this, otherArgs)
          }
        }

        /**
         * Gets the parent value at `path` of `object`.
         *
         * @private
         * @param {Object} object The object to query.
         * @param {Array} path The path to get the parent value of.
         * @returns {*} Returns the parent value.
         */
        function parent(object, path) {
          return path.length < 2
            ? object
            : baseGet(object, baseSlice(path, 0, -1))
        }

        /**
         * Reorder `array` according to the specified indexes where the element at
         * the first index is assigned as the first element, the element at
         * the second index is assigned as the second element, and so on.
         *
         * @private
         * @param {Array} array The array to reorder.
         * @param {Array} indexes The arranged array indexes.
         * @returns {Array} Returns `array`.
         */
        function reorder(array, indexes) {
          var arrLength = array.length,
            length = nativeMin(indexes.length, arrLength),
            oldArray = copyArray(array)

          while (length--) {
            var index = indexes[length]
            array[length] = isIndex(index, arrLength)
              ? oldArray[index]
              : undefined$1
          }
          return array
        }

        /**
         * Gets the value at `key`, unless `key` is "__proto__" or "constructor".
         *
         * @private
         * @param {Object} object The object to query.
         * @param {string} key The key of the property to get.
         * @returns {*} Returns the property value.
         */
        function safeGet(object, key) {
          if (key === "constructor" && typeof object[key] === "function") {
            return
          }

          if (key == "__proto__") {
            return
          }

          return object[key]
        }

        /**
         * Sets metadata for `func`.
         *
         * **Note:** If this function becomes hot, i.e. is invoked a lot in a short
         * period of time, it will trip its breaker and transition to an identity
         * function to avoid garbage collection pauses in V8. See
         * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070)
         * for more details.
         *
         * @private
         * @param {Function} func The function to associate metadata with.
         * @param {*} data The metadata.
         * @returns {Function} Returns `func`.
         */
        var setData = shortOut(baseSetData)

        /**
         * A simple wrapper around the global [`setTimeout`](https://mdn.io/setTimeout).
         *
         * @private
         * @param {Function} func The function to delay.
         * @param {number} wait The number of milliseconds to delay invocation.
         * @returns {number|Object} Returns the timer id or timeout object.
         */
        var setTimeout =
          ctxSetTimeout ||
          function(func, wait) {
            return root.setTimeout(func, wait)
          }

        /**
         * Sets the `toString` method of `func` to return `string`.
         *
         * @private
         * @param {Function} func The function to modify.
         * @param {Function} string The `toString` result.
         * @returns {Function} Returns `func`.
         */
        var setToString = shortOut(baseSetToString)

        /**
         * Sets the `toString` method of `wrapper` to mimic the source of `reference`
         * with wrapper details in a comment at the top of the source body.
         *
         * @private
         * @param {Function} wrapper The function to modify.
         * @param {Function} reference The reference function.
         * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
         * @returns {Function} Returns `wrapper`.
         */
        function setWrapToString(wrapper, reference, bitmask) {
          var source = reference + ""
          return setToString(
            wrapper,
            insertWrapDetails(
              source,
              updateWrapDetails(getWrapDetails(source), bitmask)
            )
          )
        }

        /**
         * Creates a function that'll short out and invoke `identity` instead
         * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN`
         * milliseconds.
         *
         * @private
         * @param {Function} func The function to restrict.
         * @returns {Function} Returns the new shortable function.
         */
        function shortOut(func) {
          var count = 0,
            lastCalled = 0

          return function() {
            var stamp = nativeNow(),
              remaining = HOT_SPAN - (stamp - lastCalled)

            lastCalled = stamp
            if (remaining > 0) {
              if (++count >= HOT_COUNT) {
                return arguments[0]
              }
            } else {
              count = 0
            }
            return func.apply(undefined$1, arguments)
          }
        }

        /**
         * A specialized version of `_.shuffle` which mutates and sets the size of `array`.
         *
         * @private
         * @param {Array} array The array to shuffle.
         * @param {number} [size=array.length] The size of `array`.
         * @returns {Array} Returns `array`.
         */
        function shuffleSelf(array, size) {
          var index = -1,
            length = array.length,
            lastIndex = length - 1

          size = size === undefined$1 ? length : size
          while (++index < size) {
            var rand = baseRandom(index, lastIndex),
              value = array[rand]

            array[rand] = array[index]
            array[index] = value
          }
          array.length = size
          return array
        }

        /**
         * Converts `string` to a property path array.
         *
         * @private
         * @param {string} string The string to convert.
         * @returns {Array} Returns the property path array.
         */
        var stringToPath = memoizeCapped(function(string) {
          var result = []
          if (string.charCodeAt(0) === 46 /* . */) {
            result.push("")
          }
          string.replace(rePropName, function(match, number, quote, subString) {
            result.push(
              quote ? subString.replace(reEscapeChar, "$1") : number || match
            )
          })
          return result
        })

        /**
         * Converts `value` to a string key if it's not a string or symbol.
         *
         * @private
         * @param {*} value The value to inspect.
         * @returns {string|symbol} Returns the key.
         */
        function toKey(value) {
          if (typeof value == "string" || isSymbol(value)) {
            return value
          }
          var result = value + ""
          return result == "0" && 1 / value == -INFINITY ? "-0" : result
        }

        /**
         * Converts `func` to its source code.
         *
         * @private
         * @param {Function} func The function to convert.
         * @returns {string} Returns the source code.
         */
        function toSource(func) {
          if (func != null) {
            try {
              return funcToString.call(func)
            } catch (e) {}
            try {
              return func + ""
            } catch (e) {}
          }
          return ""
        }

        /**
         * Updates wrapper `details` based on `bitmask` flags.
         *
         * @private
         * @returns {Array} details The details to modify.
         * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
         * @returns {Array} Returns `details`.
         */
        function updateWrapDetails(details, bitmask) {
          arrayEach(wrapFlags, function(pair) {
            var value = "_." + pair[0]
            if (bitmask & pair[1] && !arrayIncludes(details, value)) {
              details.push(value)
            }
          })
          return details.sort()
        }

        /**
         * Creates a clone of `wrapper`.
         *
         * @private
         * @param {Object} wrapper The wrapper to clone.
         * @returns {Object} Returns the cloned wrapper.
         */
        function wrapperClone(wrapper) {
          if (wrapper instanceof LazyWrapper) {
            return wrapper.clone()
          }
          var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__)
          result.__actions__ = copyArray(wrapper.__actions__)
          result.__index__ = wrapper.__index__
          result.__values__ = wrapper.__values__
          return result
        }

        /*------------------------------------------------------------------------*/

        /**
         * Creates an array of elements split into groups the length of `size`.
         * If `array` can't be split evenly, the final chunk will be the remaining
         * elements.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Array
         * @param {Array} array The array to process.
         * @param {number} [size=1] The length of each chunk
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {Array} Returns the new array of chunks.
         * @example
         *
         * _.chunk(['a', 'b', 'c', 'd'], 2);
         * // => [['a', 'b'], ['c', 'd']]
         *
         * _.chunk(['a', 'b', 'c', 'd'], 3);
         * // => [['a', 'b', 'c'], ['d']]
         */
        function chunk(array, size, guard) {
          if (
            guard ? isIterateeCall(array, size, guard) : size === undefined$1
          ) {
            size = 1
          } else {
            size = nativeMax(toInteger(size), 0)
          }
          var length = array == null ? 0 : array.length
          if (!length || size < 1) {
            return []
          }
          var index = 0,
            resIndex = 0,
            result = Array(nativeCeil(length / size))

          while (index < length) {
            result[resIndex++] = baseSlice(array, index, (index += size))
          }
          return result
        }

        /**
         * Creates an array with all falsey values removed. The values `false`, `null`,
         * `0`, `""`, `undefined`, and `NaN` are falsey.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Array
         * @param {Array} array The array to compact.
         * @returns {Array} Returns the new array of filtered values.
         * @example
         *
         * _.compact([0, 1, false, 2, '', 3]);
         * // => [1, 2, 3]
         */
        function compact(array) {
          var index = -1,
            length = array == null ? 0 : array.length,
            resIndex = 0,
            result = []

          while (++index < length) {
            var value = array[index]
            if (value) {
              result[resIndex++] = value
            }
          }
          return result
        }

        /**
         * Creates a new array concatenating `array` with any additional arrays
         * and/or values.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {Array} array The array to concatenate.
         * @param {...*} [values] The values to concatenate.
         * @returns {Array} Returns the new concatenated array.
         * @example
         *
         * var array = [1];
         * var other = _.concat(array, 2, [3], [[4]]);
         *
         * console.log(other);
         * // => [1, 2, 3, [4]]
         *
         * console.log(array);
         * // => [1]
         */
        function concat() {
          var length = arguments.length
          if (!length) {
            return []
          }
          var args = Array(length - 1),
            array = arguments[0],
            index = length

          while (index--) {
            args[index - 1] = arguments[index]
          }
          return arrayPush(
            isArray(array) ? copyArray(array) : [array],
            baseFlatten(args, 1)
          )
        }

        /**
         * Creates an array of `array` values not included in the other given arrays
         * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
         * for equality comparisons. The order and references of result values are
         * determined by the first array.
         *
         * **Note:** Unlike `_.pullAll`, this method returns a new array.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Array
         * @param {Array} array The array to inspect.
         * @param {...Array} [values] The values to exclude.
         * @returns {Array} Returns the new array of filtered values.
         * @see _.without, _.xor
         * @example
         *
         * _.difference([2, 1], [2, 3]);
         * // => [1]
         */
        var difference = baseRest(function(array, values) {
          return isArrayLikeObject(array)
            ? baseDifference(
                array,
                baseFlatten(values, 1, isArrayLikeObject, true)
              )
            : []
        })

        /**
         * This method is like `_.difference` except that it accepts `iteratee` which
         * is invoked for each element of `array` and `values` to generate the criterion
         * by which they're compared. The order and references of result values are
         * determined by the first array. The iteratee is invoked with one argument:
         * (value).
         *
         * **Note:** Unlike `_.pullAllBy`, this method returns a new array.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {Array} array The array to inspect.
         * @param {...Array} [values] The values to exclude.
         * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
         * @returns {Array} Returns the new array of filtered values.
         * @example
         *
         * _.differenceBy([2.1, 1.2], [2.3, 3.4], Math.floor);
         * // => [1.2]
         *
         * // The `_.property` iteratee shorthand.
         * _.differenceBy([{ 'x': 2 }, { 'x': 1 }], [{ 'x': 1 }], 'x');
         * // => [{ 'x': 2 }]
         */
        var differenceBy = baseRest(function(array, values) {
          var iteratee = last(values)
          if (isArrayLikeObject(iteratee)) {
            iteratee = undefined$1
          }
          return isArrayLikeObject(array)
            ? baseDifference(
                array,
                baseFlatten(values, 1, isArrayLikeObject, true),
                getIteratee(iteratee, 2)
              )
            : []
        })

        /**
         * This method is like `_.difference` except that it accepts `comparator`
         * which is invoked to compare elements of `array` to `values`. The order and
         * references of result values are determined by the first array. The comparator
         * is invoked with two arguments: (arrVal, othVal).
         *
         * **Note:** Unlike `_.pullAllWith`, this method returns a new array.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {Array} array The array to inspect.
         * @param {...Array} [values] The values to exclude.
         * @param {Function} [comparator] The comparator invoked per element.
         * @returns {Array} Returns the new array of filtered values.
         * @example
         *
         * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
         *
         * _.differenceWith(objects, [{ 'x': 1, 'y': 2 }], _.isEqual);
         * // => [{ 'x': 2, 'y': 1 }]
         */
        var differenceWith = baseRest(function(array, values) {
          var comparator = last(values)
          if (isArrayLikeObject(comparator)) {
            comparator = undefined$1
          }
          return isArrayLikeObject(array)
            ? baseDifference(
                array,
                baseFlatten(values, 1, isArrayLikeObject, true),
                undefined$1,
                comparator
              )
            : []
        })

        /**
         * Creates a slice of `array` with `n` elements dropped from the beginning.
         *
         * @static
         * @memberOf _
         * @since 0.5.0
         * @category Array
         * @param {Array} array The array to query.
         * @param {number} [n=1] The number of elements to drop.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {Array} Returns the slice of `array`.
         * @example
         *
         * _.drop([1, 2, 3]);
         * // => [2, 3]
         *
         * _.drop([1, 2, 3], 2);
         * // => [3]
         *
         * _.drop([1, 2, 3], 5);
         * // => []
         *
         * _.drop([1, 2, 3], 0);
         * // => [1, 2, 3]
         */
        function drop(array, n, guard) {
          var length = array == null ? 0 : array.length
          if (!length) {
            return []
          }
          n = guard || n === undefined$1 ? 1 : toInteger(n)
          return baseSlice(array, n < 0 ? 0 : n, length)
        }

        /**
         * Creates a slice of `array` with `n` elements dropped from the end.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Array
         * @param {Array} array The array to query.
         * @param {number} [n=1] The number of elements to drop.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {Array} Returns the slice of `array`.
         * @example
         *
         * _.dropRight([1, 2, 3]);
         * // => [1, 2]
         *
         * _.dropRight([1, 2, 3], 2);
         * // => [1]
         *
         * _.dropRight([1, 2, 3], 5);
         * // => []
         *
         * _.dropRight([1, 2, 3], 0);
         * // => [1, 2, 3]
         */
        function dropRight(array, n, guard) {
          var length = array == null ? 0 : array.length
          if (!length) {
            return []
          }
          n = guard || n === undefined$1 ? 1 : toInteger(n)
          n = length - n
          return baseSlice(array, 0, n < 0 ? 0 : n)
        }

        /**
         * Creates a slice of `array` excluding elements dropped from the end.
         * Elements are dropped until `predicate` returns falsey. The predicate is
         * invoked with three arguments: (value, index, array).
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Array
         * @param {Array} array The array to query.
         * @param {Function} [predicate=_.identity] The function invoked per iteration.
         * @returns {Array} Returns the slice of `array`.
         * @example
         *
         * var users = [
         *   { 'user': 'barney',  'active': true },
         *   { 'user': 'fred',    'active': false },
         *   { 'user': 'pebbles', 'active': false }
         * ];
         *
         * _.dropRightWhile(users, function(o) { return !o.active; });
         * // => objects for ['barney']
         *
         * // The `_.matches` iteratee shorthand.
         * _.dropRightWhile(users, { 'user': 'pebbles', 'active': false });
         * // => objects for ['barney', 'fred']
         *
         * // The `_.matchesProperty` iteratee shorthand.
         * _.dropRightWhile(users, ['active', false]);
         * // => objects for ['barney']
         *
         * // The `_.property` iteratee shorthand.
         * _.dropRightWhile(users, 'active');
         * // => objects for ['barney', 'fred', 'pebbles']
         */
        function dropRightWhile(array, predicate) {
          return array && array.length
            ? baseWhile(array, getIteratee(predicate, 3), true, true)
            : []
        }

        /**
         * Creates a slice of `array` excluding elements dropped from the beginning.
         * Elements are dropped until `predicate` returns falsey. The predicate is
         * invoked with three arguments: (value, index, array).
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Array
         * @param {Array} array The array to query.
         * @param {Function} [predicate=_.identity] The function invoked per iteration.
         * @returns {Array} Returns the slice of `array`.
         * @example
         *
         * var users = [
         *   { 'user': 'barney',  'active': false },
         *   { 'user': 'fred',    'active': false },
         *   { 'user': 'pebbles', 'active': true }
         * ];
         *
         * _.dropWhile(users, function(o) { return !o.active; });
         * // => objects for ['pebbles']
         *
         * // The `_.matches` iteratee shorthand.
         * _.dropWhile(users, { 'user': 'barney', 'active': false });
         * // => objects for ['fred', 'pebbles']
         *
         * // The `_.matchesProperty` iteratee shorthand.
         * _.dropWhile(users, ['active', false]);
         * // => objects for ['pebbles']
         *
         * // The `_.property` iteratee shorthand.
         * _.dropWhile(users, 'active');
         * // => objects for ['barney', 'fred', 'pebbles']
         */
        function dropWhile(array, predicate) {
          return array && array.length
            ? baseWhile(array, getIteratee(predicate, 3), true)
            : []
        }

        /**
         * Fills elements of `array` with `value` from `start` up to, but not
         * including, `end`.
         *
         * **Note:** This method mutates `array`.
         *
         * @static
         * @memberOf _
         * @since 3.2.0
         * @category Array
         * @param {Array} array The array to fill.
         * @param {*} value The value to fill `array` with.
         * @param {number} [start=0] The start position.
         * @param {number} [end=array.length] The end position.
         * @returns {Array} Returns `array`.
         * @example
         *
         * var array = [1, 2, 3];
         *
         * _.fill(array, 'a');
         * console.log(array);
         * // => ['a', 'a', 'a']
         *
         * _.fill(Array(3), 2);
         * // => [2, 2, 2]
         *
         * _.fill([4, 6, 8, 10], '*', 1, 3);
         * // => [4, '*', '*', 10]
         */
        function fill(array, value, start, end) {
          var length = array == null ? 0 : array.length
          if (!length) {
            return []
          }
          if (
            start &&
            typeof start != "number" &&
            isIterateeCall(array, value, start)
          ) {
            start = 0
            end = length
          }
          return baseFill(array, value, start, end)
        }

        /**
         * This method is like `_.find` except that it returns the index of the first
         * element `predicate` returns truthy for instead of the element itself.
         *
         * @static
         * @memberOf _
         * @since 1.1.0
         * @category Array
         * @param {Array} array The array to inspect.
         * @param {Function} [predicate=_.identity] The function invoked per iteration.
         * @param {number} [fromIndex=0] The index to search from.
         * @returns {number} Returns the index of the found element, else `-1`.
         * @example
         *
         * var users = [
         *   { 'user': 'barney',  'active': false },
         *   { 'user': 'fred',    'active': false },
         *   { 'user': 'pebbles', 'active': true }
         * ];
         *
         * _.findIndex(users, function(o) { return o.user == 'barney'; });
         * // => 0
         *
         * // The `_.matches` iteratee shorthand.
         * _.findIndex(users, { 'user': 'fred', 'active': false });
         * // => 1
         *
         * // The `_.matchesProperty` iteratee shorthand.
         * _.findIndex(users, ['active', false]);
         * // => 0
         *
         * // The `_.property` iteratee shorthand.
         * _.findIndex(users, 'active');
         * // => 2
         */
        function findIndex(array, predicate, fromIndex) {
          var length = array == null ? 0 : array.length
          if (!length) {
            return -1
          }
          var index = fromIndex == null ? 0 : toInteger(fromIndex)
          if (index < 0) {
            index = nativeMax(length + index, 0)
          }
          return baseFindIndex(array, getIteratee(predicate, 3), index)
        }

        /**
         * This method is like `_.findIndex` except that it iterates over elements
         * of `collection` from right to left.
         *
         * @static
         * @memberOf _
         * @since 2.0.0
         * @category Array
         * @param {Array} array The array to inspect.
         * @param {Function} [predicate=_.identity] The function invoked per iteration.
         * @param {number} [fromIndex=array.length-1] The index to search from.
         * @returns {number} Returns the index of the found element, else `-1`.
         * @example
         *
         * var users = [
         *   { 'user': 'barney',  'active': true },
         *   { 'user': 'fred',    'active': false },
         *   { 'user': 'pebbles', 'active': false }
         * ];
         *
         * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; });
         * // => 2
         *
         * // The `_.matches` iteratee shorthand.
         * _.findLastIndex(users, { 'user': 'barney', 'active': true });
         * // => 0
         *
         * // The `_.matchesProperty` iteratee shorthand.
         * _.findLastIndex(users, ['active', false]);
         * // => 2
         *
         * // The `_.property` iteratee shorthand.
         * _.findLastIndex(users, 'active');
         * // => 0
         */
        function findLastIndex(array, predicate, fromIndex) {
          var length = array == null ? 0 : array.length
          if (!length) {
            return -1
          }
          var index = length - 1
          if (fromIndex !== undefined$1) {
            index = toInteger(fromIndex)
            index =
              fromIndex < 0
                ? nativeMax(length + index, 0)
                : nativeMin(index, length - 1)
          }
          return baseFindIndex(array, getIteratee(predicate, 3), index, true)
        }

        /**
         * Flattens `array` a single level deep.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Array
         * @param {Array} array The array to flatten.
         * @returns {Array} Returns the new flattened array.
         * @example
         *
         * _.flatten([1, [2, [3, [4]], 5]]);
         * // => [1, 2, [3, [4]], 5]
         */
        function flatten(array) {
          var length = array == null ? 0 : array.length
          return length ? baseFlatten(array, 1) : []
        }

        /**
         * Recursively flattens `array`.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Array
         * @param {Array} array The array to flatten.
         * @returns {Array} Returns the new flattened array.
         * @example
         *
         * _.flattenDeep([1, [2, [3, [4]], 5]]);
         * // => [1, 2, 3, 4, 5]
         */
        function flattenDeep(array) {
          var length = array == null ? 0 : array.length
          return length ? baseFlatten(array, INFINITY) : []
        }

        /**
         * Recursively flatten `array` up to `depth` times.
         *
         * @static
         * @memberOf _
         * @since 4.4.0
         * @category Array
         * @param {Array} array The array to flatten.
         * @param {number} [depth=1] The maximum recursion depth.
         * @returns {Array} Returns the new flattened array.
         * @example
         *
         * var array = [1, [2, [3, [4]], 5]];
         *
         * _.flattenDepth(array, 1);
         * // => [1, 2, [3, [4]], 5]
         *
         * _.flattenDepth(array, 2);
         * // => [1, 2, 3, [4], 5]
         */
        function flattenDepth(array, depth) {
          var length = array == null ? 0 : array.length
          if (!length) {
            return []
          }
          depth = depth === undefined$1 ? 1 : toInteger(depth)
          return baseFlatten(array, depth)
        }

        /**
         * The inverse of `_.toPairs`; this method returns an object composed
         * from key-value `pairs`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {Array} pairs The key-value pairs.
         * @returns {Object} Returns the new object.
         * @example
         *
         * _.fromPairs([['a', 1], ['b', 2]]);
         * // => { 'a': 1, 'b': 2 }
         */
        function fromPairs(pairs) {
          var index = -1,
            length = pairs == null ? 0 : pairs.length,
            result = {}

          while (++index < length) {
            var pair = pairs[index]
            result[pair[0]] = pair[1]
          }
          return result
        }

        /**
         * Gets the first element of `array`.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @alias first
         * @category Array
         * @param {Array} array The array to query.
         * @returns {*} Returns the first element of `array`.
         * @example
         *
         * _.head([1, 2, 3]);
         * // => 1
         *
         * _.head([]);
         * // => undefined
         */
        function head(array) {
          return array && array.length ? array[0] : undefined$1
        }

        /**
         * Gets the index at which the first occurrence of `value` is found in `array`
         * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
         * for equality comparisons. If `fromIndex` is negative, it's used as the
         * offset from the end of `array`.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Array
         * @param {Array} array The array to inspect.
         * @param {*} value The value to search for.
         * @param {number} [fromIndex=0] The index to search from.
         * @returns {number} Returns the index of the matched value, else `-1`.
         * @example
         *
         * _.indexOf([1, 2, 1, 2], 2);
         * // => 1
         *
         * // Search from the `fromIndex`.
         * _.indexOf([1, 2, 1, 2], 2, 2);
         * // => 3
         */
        function indexOf(array, value, fromIndex) {
          var length = array == null ? 0 : array.length
          if (!length) {
            return -1
          }
          var index = fromIndex == null ? 0 : toInteger(fromIndex)
          if (index < 0) {
            index = nativeMax(length + index, 0)
          }
          return baseIndexOf(array, value, index)
        }

        /**
         * Gets all but the last element of `array`.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Array
         * @param {Array} array The array to query.
         * @returns {Array} Returns the slice of `array`.
         * @example
         *
         * _.initial([1, 2, 3]);
         * // => [1, 2]
         */
        function initial(array) {
          var length = array == null ? 0 : array.length
          return length ? baseSlice(array, 0, -1) : []
        }

        /**
         * Creates an array of unique values that are included in all given arrays
         * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
         * for equality comparisons. The order and references of result values are
         * determined by the first array.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Array
         * @param {...Array} [arrays] The arrays to inspect.
         * @returns {Array} Returns the new array of intersecting values.
         * @example
         *
         * _.intersection([2, 1], [2, 3]);
         * // => [2]
         */
        var intersection = baseRest(function(arrays) {
          var mapped = arrayMap(arrays, castArrayLikeObject)
          return mapped.length && mapped[0] === arrays[0]
            ? baseIntersection(mapped)
            : []
        })

        /**
         * This method is like `_.intersection` except that it accepts `iteratee`
         * which is invoked for each element of each `arrays` to generate the criterion
         * by which they're compared. The order and references of result values are
         * determined by the first array. The iteratee is invoked with one argument:
         * (value).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {...Array} [arrays] The arrays to inspect.
         * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
         * @returns {Array} Returns the new array of intersecting values.
         * @example
         *
         * _.intersectionBy([2.1, 1.2], [2.3, 3.4], Math.floor);
         * // => [2.1]
         *
         * // The `_.property` iteratee shorthand.
         * _.intersectionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
         * // => [{ 'x': 1 }]
         */
        var intersectionBy = baseRest(function(arrays) {
          var iteratee = last(arrays),
            mapped = arrayMap(arrays, castArrayLikeObject)

          if (iteratee === last(mapped)) {
            iteratee = undefined$1
          } else {
            mapped.pop()
          }
          return mapped.length && mapped[0] === arrays[0]
            ? baseIntersection(mapped, getIteratee(iteratee, 2))
            : []
        })

        /**
         * This method is like `_.intersection` except that it accepts `comparator`
         * which is invoked to compare elements of `arrays`. The order and references
         * of result values are determined by the first array. The comparator is
         * invoked with two arguments: (arrVal, othVal).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {...Array} [arrays] The arrays to inspect.
         * @param {Function} [comparator] The comparator invoked per element.
         * @returns {Array} Returns the new array of intersecting values.
         * @example
         *
         * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
         * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];
         *
         * _.intersectionWith(objects, others, _.isEqual);
         * // => [{ 'x': 1, 'y': 2 }]
         */
        var intersectionWith = baseRest(function(arrays) {
          var comparator = last(arrays),
            mapped = arrayMap(arrays, castArrayLikeObject)

          comparator =
            typeof comparator == "function" ? comparator : undefined$1
          if (comparator) {
            mapped.pop()
          }
          return mapped.length && mapped[0] === arrays[0]
            ? baseIntersection(mapped, undefined$1, comparator)
            : []
        })

        /**
         * Converts all elements in `array` into a string separated by `separator`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {Array} array The array to convert.
         * @param {string} [separator=','] The element separator.
         * @returns {string} Returns the joined string.
         * @example
         *
         * _.join(['a', 'b', 'c'], '~');
         * // => 'a~b~c'
         */
        function join(array, separator) {
          return array == null ? "" : nativeJoin.call(array, separator)
        }

        /**
         * Gets the last element of `array`.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Array
         * @param {Array} array The array to query.
         * @returns {*} Returns the last element of `array`.
         * @example
         *
         * _.last([1, 2, 3]);
         * // => 3
         */
        function last(array) {
          var length = array == null ? 0 : array.length
          return length ? array[length - 1] : undefined$1
        }

        /**
         * This method is like `_.indexOf` except that it iterates over elements of
         * `array` from right to left.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Array
         * @param {Array} array The array to inspect.
         * @param {*} value The value to search for.
         * @param {number} [fromIndex=array.length-1] The index to search from.
         * @returns {number} Returns the index of the matched value, else `-1`.
         * @example
         *
         * _.lastIndexOf([1, 2, 1, 2], 2);
         * // => 3
         *
         * // Search from the `fromIndex`.
         * _.lastIndexOf([1, 2, 1, 2], 2, 2);
         * // => 1
         */
        function lastIndexOf(array, value, fromIndex) {
          var length = array == null ? 0 : array.length
          if (!length) {
            return -1
          }
          var index = length
          if (fromIndex !== undefined$1) {
            index = toInteger(fromIndex)
            index =
              index < 0
                ? nativeMax(length + index, 0)
                : nativeMin(index, length - 1)
          }
          return value === value
            ? strictLastIndexOf(array, value, index)
            : baseFindIndex(array, baseIsNaN, index, true)
        }

        /**
         * Gets the element at index `n` of `array`. If `n` is negative, the nth
         * element from the end is returned.
         *
         * @static
         * @memberOf _
         * @since 4.11.0
         * @category Array
         * @param {Array} array The array to query.
         * @param {number} [n=0] The index of the element to return.
         * @returns {*} Returns the nth element of `array`.
         * @example
         *
         * var array = ['a', 'b', 'c', 'd'];
         *
         * _.nth(array, 1);
         * // => 'b'
         *
         * _.nth(array, -2);
         * // => 'c';
         */
        function nth(array, n) {
          return array && array.length
            ? baseNth(array, toInteger(n))
            : undefined$1
        }

        /**
         * Removes all given values from `array` using
         * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
         * for equality comparisons.
         *
         * **Note:** Unlike `_.without`, this method mutates `array`. Use `_.remove`
         * to remove elements from an array by predicate.
         *
         * @static
         * @memberOf _
         * @since 2.0.0
         * @category Array
         * @param {Array} array The array to modify.
         * @param {...*} [values] The values to remove.
         * @returns {Array} Returns `array`.
         * @example
         *
         * var array = ['a', 'b', 'c', 'a', 'b', 'c'];
         *
         * _.pull(array, 'a', 'c');
         * console.log(array);
         * // => ['b', 'b']
         */
        var pull = baseRest(pullAll)

        /**
         * This method is like `_.pull` except that it accepts an array of values to remove.
         *
         * **Note:** Unlike `_.difference`, this method mutates `array`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {Array} array The array to modify.
         * @param {Array} values The values to remove.
         * @returns {Array} Returns `array`.
         * @example
         *
         * var array = ['a', 'b', 'c', 'a', 'b', 'c'];
         *
         * _.pullAll(array, ['a', 'c']);
         * console.log(array);
         * // => ['b', 'b']
         */
        function pullAll(array, values) {
          return array && array.length && values && values.length
            ? basePullAll(array, values)
            : array
        }

        /**
         * This method is like `_.pullAll` except that it accepts `iteratee` which is
         * invoked for each element of `array` and `values` to generate the criterion
         * by which they're compared. The iteratee is invoked with one argument: (value).
         *
         * **Note:** Unlike `_.differenceBy`, this method mutates `array`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {Array} array The array to modify.
         * @param {Array} values The values to remove.
         * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
         * @returns {Array} Returns `array`.
         * @example
         *
         * var array = [{ 'x': 1 }, { 'x': 2 }, { 'x': 3 }, { 'x': 1 }];
         *
         * _.pullAllBy(array, [{ 'x': 1 }, { 'x': 3 }], 'x');
         * console.log(array);
         * // => [{ 'x': 2 }]
         */
        function pullAllBy(array, values, iteratee) {
          return array && array.length && values && values.length
            ? basePullAll(array, values, getIteratee(iteratee, 2))
            : array
        }

        /**
         * This method is like `_.pullAll` except that it accepts `comparator` which
         * is invoked to compare elements of `array` to `values`. The comparator is
         * invoked with two arguments: (arrVal, othVal).
         *
         * **Note:** Unlike `_.differenceWith`, this method mutates `array`.
         *
         * @static
         * @memberOf _
         * @since 4.6.0
         * @category Array
         * @param {Array} array The array to modify.
         * @param {Array} values The values to remove.
         * @param {Function} [comparator] The comparator invoked per element.
         * @returns {Array} Returns `array`.
         * @example
         *
         * var array = [{ 'x': 1, 'y': 2 }, { 'x': 3, 'y': 4 }, { 'x': 5, 'y': 6 }];
         *
         * _.pullAllWith(array, [{ 'x': 3, 'y': 4 }], _.isEqual);
         * console.log(array);
         * // => [{ 'x': 1, 'y': 2 }, { 'x': 5, 'y': 6 }]
         */
        function pullAllWith(array, values, comparator) {
          return array && array.length && values && values.length
            ? basePullAll(array, values, undefined$1, comparator)
            : array
        }

        /**
         * Removes elements from `array` corresponding to `indexes` and returns an
         * array of removed elements.
         *
         * **Note:** Unlike `_.at`, this method mutates `array`.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Array
         * @param {Array} array The array to modify.
         * @param {...(number|number[])} [indexes] The indexes of elements to remove.
         * @returns {Array} Returns the new array of removed elements.
         * @example
         *
         * var array = ['a', 'b', 'c', 'd'];
         * var pulled = _.pullAt(array, [1, 3]);
         *
         * console.log(array);
         * // => ['a', 'c']
         *
         * console.log(pulled);
         * // => ['b', 'd']
         */
        var pullAt = flatRest(function(array, indexes) {
          var length = array == null ? 0 : array.length,
            result = baseAt(array, indexes)

          basePullAt(
            array,
            arrayMap(indexes, function(index) {
              return isIndex(index, length) ? +index : index
            }).sort(compareAscending)
          )

          return result
        })

        /**
         * Removes all elements from `array` that `predicate` returns truthy for
         * and returns an array of the removed elements. The predicate is invoked
         * with three arguments: (value, index, array).
         *
         * **Note:** Unlike `_.filter`, this method mutates `array`. Use `_.pull`
         * to pull elements from an array by value.
         *
         * @static
         * @memberOf _
         * @since 2.0.0
         * @category Array
         * @param {Array} array The array to modify.
         * @param {Function} [predicate=_.identity] The function invoked per iteration.
         * @returns {Array} Returns the new array of removed elements.
         * @example
         *
         * var array = [1, 2, 3, 4];
         * var evens = _.remove(array, function(n) {
         *   return n % 2 == 0;
         * });
         *
         * console.log(array);
         * // => [1, 3]
         *
         * console.log(evens);
         * // => [2, 4]
         */
        function remove(array, predicate) {
          var result = []
          if (!(array && array.length)) {
            return result
          }
          var index = -1,
            indexes = [],
            length = array.length

          predicate = getIteratee(predicate, 3)
          while (++index < length) {
            var value = array[index]
            if (predicate(value, index, array)) {
              result.push(value)
              indexes.push(index)
            }
          }
          basePullAt(array, indexes)
          return result
        }

        /**
         * Reverses `array` so that the first element becomes the last, the second
         * element becomes the second to last, and so on.
         *
         * **Note:** This method mutates `array` and is based on
         * [`Array#reverse`](https://mdn.io/Array/reverse).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {Array} array The array to modify.
         * @returns {Array} Returns `array`.
         * @example
         *
         * var array = [1, 2, 3];
         *
         * _.reverse(array);
         * // => [3, 2, 1]
         *
         * console.log(array);
         * // => [3, 2, 1]
         */
        function reverse(array) {
          return array == null ? array : nativeReverse.call(array)
        }

        /**
         * Creates a slice of `array` from `start` up to, but not including, `end`.
         *
         * **Note:** This method is used instead of
         * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are
         * returned.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Array
         * @param {Array} array The array to slice.
         * @param {number} [start=0] The start position.
         * @param {number} [end=array.length] The end position.
         * @returns {Array} Returns the slice of `array`.
         */
        function slice(array, start, end) {
          var length = array == null ? 0 : array.length
          if (!length) {
            return []
          }
          if (
            end &&
            typeof end != "number" &&
            isIterateeCall(array, start, end)
          ) {
            start = 0
            end = length
          } else {
            start = start == null ? 0 : toInteger(start)
            end = end === undefined$1 ? length : toInteger(end)
          }
          return baseSlice(array, start, end)
        }

        /**
         * Uses a binary search to determine the lowest index at which `value`
         * should be inserted into `array` in order to maintain its sort order.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Array
         * @param {Array} array The sorted array to inspect.
         * @param {*} value The value to evaluate.
         * @returns {number} Returns the index at which `value` should be inserted
         *  into `array`.
         * @example
         *
         * _.sortedIndex([30, 50], 40);
         * // => 1
         */
        function sortedIndex(array, value) {
          return baseSortedIndex(array, value)
        }

        /**
         * This method is like `_.sortedIndex` except that it accepts `iteratee`
         * which is invoked for `value` and each element of `array` to compute their
         * sort ranking. The iteratee is invoked with one argument: (value).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {Array} array The sorted array to inspect.
         * @param {*} value The value to evaluate.
         * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
         * @returns {number} Returns the index at which `value` should be inserted
         *  into `array`.
         * @example
         *
         * var objects = [{ 'x': 4 }, { 'x': 5 }];
         *
         * _.sortedIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });
         * // => 0
         *
         * // The `_.property` iteratee shorthand.
         * _.sortedIndexBy(objects, { 'x': 4 }, 'x');
         * // => 0
         */
        function sortedIndexBy(array, value, iteratee) {
          return baseSortedIndexBy(array, value, getIteratee(iteratee, 2))
        }

        /**
         * This method is like `_.indexOf` except that it performs a binary
         * search on a sorted `array`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {Array} array The array to inspect.
         * @param {*} value The value to search for.
         * @returns {number} Returns the index of the matched value, else `-1`.
         * @example
         *
         * _.sortedIndexOf([4, 5, 5, 5, 6], 5);
         * // => 1
         */
        function sortedIndexOf(array, value) {
          var length = array == null ? 0 : array.length
          if (length) {
            var index = baseSortedIndex(array, value)
            if (index < length && eq(array[index], value)) {
              return index
            }
          }
          return -1
        }

        /**
         * This method is like `_.sortedIndex` except that it returns the highest
         * index at which `value` should be inserted into `array` in order to
         * maintain its sort order.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Array
         * @param {Array} array The sorted array to inspect.
         * @param {*} value The value to evaluate.
         * @returns {number} Returns the index at which `value` should be inserted
         *  into `array`.
         * @example
         *
         * _.sortedLastIndex([4, 5, 5, 5, 6], 5);
         * // => 4
         */
        function sortedLastIndex(array, value) {
          return baseSortedIndex(array, value, true)
        }

        /**
         * This method is like `_.sortedLastIndex` except that it accepts `iteratee`
         * which is invoked for `value` and each element of `array` to compute their
         * sort ranking. The iteratee is invoked with one argument: (value).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {Array} array The sorted array to inspect.
         * @param {*} value The value to evaluate.
         * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
         * @returns {number} Returns the index at which `value` should be inserted
         *  into `array`.
         * @example
         *
         * var objects = [{ 'x': 4 }, { 'x': 5 }];
         *
         * _.sortedLastIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });
         * // => 1
         *
         * // The `_.property` iteratee shorthand.
         * _.sortedLastIndexBy(objects, { 'x': 4 }, 'x');
         * // => 1
         */
        function sortedLastIndexBy(array, value, iteratee) {
          return baseSortedIndexBy(array, value, getIteratee(iteratee, 2), true)
        }

        /**
         * This method is like `_.lastIndexOf` except that it performs a binary
         * search on a sorted `array`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {Array} array The array to inspect.
         * @param {*} value The value to search for.
         * @returns {number} Returns the index of the matched value, else `-1`.
         * @example
         *
         * _.sortedLastIndexOf([4, 5, 5, 5, 6], 5);
         * // => 3
         */
        function sortedLastIndexOf(array, value) {
          var length = array == null ? 0 : array.length
          if (length) {
            var index = baseSortedIndex(array, value, true) - 1
            if (eq(array[index], value)) {
              return index
            }
          }
          return -1
        }

        /**
         * This method is like `_.uniq` except that it's designed and optimized
         * for sorted arrays.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {Array} array The array to inspect.
         * @returns {Array} Returns the new duplicate free array.
         * @example
         *
         * _.sortedUniq([1, 1, 2]);
         * // => [1, 2]
         */
        function sortedUniq(array) {
          return array && array.length ? baseSortedUniq(array) : []
        }

        /**
         * This method is like `_.uniqBy` except that it's designed and optimized
         * for sorted arrays.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {Array} array The array to inspect.
         * @param {Function} [iteratee] The iteratee invoked per element.
         * @returns {Array} Returns the new duplicate free array.
         * @example
         *
         * _.sortedUniqBy([1.1, 1.2, 2.3, 2.4], Math.floor);
         * // => [1.1, 2.3]
         */
        function sortedUniqBy(array, iteratee) {
          return array && array.length
            ? baseSortedUniq(array, getIteratee(iteratee, 2))
            : []
        }

        /**
         * Gets all but the first element of `array`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {Array} array The array to query.
         * @returns {Array} Returns the slice of `array`.
         * @example
         *
         * _.tail([1, 2, 3]);
         * // => [2, 3]
         */
        function tail(array) {
          var length = array == null ? 0 : array.length
          return length ? baseSlice(array, 1, length) : []
        }

        /**
         * Creates a slice of `array` with `n` elements taken from the beginning.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Array
         * @param {Array} array The array to query.
         * @param {number} [n=1] The number of elements to take.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {Array} Returns the slice of `array`.
         * @example
         *
         * _.take([1, 2, 3]);
         * // => [1]
         *
         * _.take([1, 2, 3], 2);
         * // => [1, 2]
         *
         * _.take([1, 2, 3], 5);
         * // => [1, 2, 3]
         *
         * _.take([1, 2, 3], 0);
         * // => []
         */
        function take(array, n, guard) {
          if (!(array && array.length)) {
            return []
          }
          n = guard || n === undefined$1 ? 1 : toInteger(n)
          return baseSlice(array, 0, n < 0 ? 0 : n)
        }

        /**
         * Creates a slice of `array` with `n` elements taken from the end.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Array
         * @param {Array} array The array to query.
         * @param {number} [n=1] The number of elements to take.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {Array} Returns the slice of `array`.
         * @example
         *
         * _.takeRight([1, 2, 3]);
         * // => [3]
         *
         * _.takeRight([1, 2, 3], 2);
         * // => [2, 3]
         *
         * _.takeRight([1, 2, 3], 5);
         * // => [1, 2, 3]
         *
         * _.takeRight([1, 2, 3], 0);
         * // => []
         */
        function takeRight(array, n, guard) {
          var length = array == null ? 0 : array.length
          if (!length) {
            return []
          }
          n = guard || n === undefined$1 ? 1 : toInteger(n)
          n = length - n
          return baseSlice(array, n < 0 ? 0 : n, length)
        }

        /**
         * Creates a slice of `array` with elements taken from the end. Elements are
         * taken until `predicate` returns falsey. The predicate is invoked with
         * three arguments: (value, index, array).
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Array
         * @param {Array} array The array to query.
         * @param {Function} [predicate=_.identity] The function invoked per iteration.
         * @returns {Array} Returns the slice of `array`.
         * @example
         *
         * var users = [
         *   { 'user': 'barney',  'active': true },
         *   { 'user': 'fred',    'active': false },
         *   { 'user': 'pebbles', 'active': false }
         * ];
         *
         * _.takeRightWhile(users, function(o) { return !o.active; });
         * // => objects for ['fred', 'pebbles']
         *
         * // The `_.matches` iteratee shorthand.
         * _.takeRightWhile(users, { 'user': 'pebbles', 'active': false });
         * // => objects for ['pebbles']
         *
         * // The `_.matchesProperty` iteratee shorthand.
         * _.takeRightWhile(users, ['active', false]);
         * // => objects for ['fred', 'pebbles']
         *
         * // The `_.property` iteratee shorthand.
         * _.takeRightWhile(users, 'active');
         * // => []
         */
        function takeRightWhile(array, predicate) {
          return array && array.length
            ? baseWhile(array, getIteratee(predicate, 3), false, true)
            : []
        }

        /**
         * Creates a slice of `array` with elements taken from the beginning. Elements
         * are taken until `predicate` returns falsey. The predicate is invoked with
         * three arguments: (value, index, array).
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Array
         * @param {Array} array The array to query.
         * @param {Function} [predicate=_.identity] The function invoked per iteration.
         * @returns {Array} Returns the slice of `array`.
         * @example
         *
         * var users = [
         *   { 'user': 'barney',  'active': false },
         *   { 'user': 'fred',    'active': false },
         *   { 'user': 'pebbles', 'active': true }
         * ];
         *
         * _.takeWhile(users, function(o) { return !o.active; });
         * // => objects for ['barney', 'fred']
         *
         * // The `_.matches` iteratee shorthand.
         * _.takeWhile(users, { 'user': 'barney', 'active': false });
         * // => objects for ['barney']
         *
         * // The `_.matchesProperty` iteratee shorthand.
         * _.takeWhile(users, ['active', false]);
         * // => objects for ['barney', 'fred']
         *
         * // The `_.property` iteratee shorthand.
         * _.takeWhile(users, 'active');
         * // => []
         */
        function takeWhile(array, predicate) {
          return array && array.length
            ? baseWhile(array, getIteratee(predicate, 3))
            : []
        }

        /**
         * Creates an array of unique values, in order, from all given arrays using
         * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
         * for equality comparisons.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Array
         * @param {...Array} [arrays] The arrays to inspect.
         * @returns {Array} Returns the new array of combined values.
         * @example
         *
         * _.union([2], [1, 2]);
         * // => [2, 1]
         */
        var union = baseRest(function(arrays) {
          return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true))
        })

        /**
         * This method is like `_.union` except that it accepts `iteratee` which is
         * invoked for each element of each `arrays` to generate the criterion by
         * which uniqueness is computed. Result values are chosen from the first
         * array in which the value occurs. The iteratee is invoked with one argument:
         * (value).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {...Array} [arrays] The arrays to inspect.
         * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
         * @returns {Array} Returns the new array of combined values.
         * @example
         *
         * _.unionBy([2.1], [1.2, 2.3], Math.floor);
         * // => [2.1, 1.2]
         *
         * // The `_.property` iteratee shorthand.
         * _.unionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
         * // => [{ 'x': 1 }, { 'x': 2 }]
         */
        var unionBy = baseRest(function(arrays) {
          var iteratee = last(arrays)
          if (isArrayLikeObject(iteratee)) {
            iteratee = undefined$1
          }
          return baseUniq(
            baseFlatten(arrays, 1, isArrayLikeObject, true),
            getIteratee(iteratee, 2)
          )
        })

        /**
         * This method is like `_.union` except that it accepts `comparator` which
         * is invoked to compare elements of `arrays`. Result values are chosen from
         * the first array in which the value occurs. The comparator is invoked
         * with two arguments: (arrVal, othVal).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {...Array} [arrays] The arrays to inspect.
         * @param {Function} [comparator] The comparator invoked per element.
         * @returns {Array} Returns the new array of combined values.
         * @example
         *
         * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
         * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];
         *
         * _.unionWith(objects, others, _.isEqual);
         * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]
         */
        var unionWith = baseRest(function(arrays) {
          var comparator = last(arrays)
          comparator =
            typeof comparator == "function" ? comparator : undefined$1
          return baseUniq(
            baseFlatten(arrays, 1, isArrayLikeObject, true),
            undefined$1,
            comparator
          )
        })

        /**
         * Creates a duplicate-free version of an array, using
         * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
         * for equality comparisons, in which only the first occurrence of each element
         * is kept. The order of result values is determined by the order they occur
         * in the array.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Array
         * @param {Array} array The array to inspect.
         * @returns {Array} Returns the new duplicate free array.
         * @example
         *
         * _.uniq([2, 1, 2]);
         * // => [2, 1]
         */
        function uniq(array) {
          return array && array.length ? baseUniq(array) : []
        }

        /**
         * This method is like `_.uniq` except that it accepts `iteratee` which is
         * invoked for each element in `array` to generate the criterion by which
         * uniqueness is computed. The order of result values is determined by the
         * order they occur in the array. The iteratee is invoked with one argument:
         * (value).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {Array} array The array to inspect.
         * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
         * @returns {Array} Returns the new duplicate free array.
         * @example
         *
         * _.uniqBy([2.1, 1.2, 2.3], Math.floor);
         * // => [2.1, 1.2]
         *
         * // The `_.property` iteratee shorthand.
         * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');
         * // => [{ 'x': 1 }, { 'x': 2 }]
         */
        function uniqBy(array, iteratee) {
          return array && array.length
            ? baseUniq(array, getIteratee(iteratee, 2))
            : []
        }

        /**
         * This method is like `_.uniq` except that it accepts `comparator` which
         * is invoked to compare elements of `array`. The order of result values is
         * determined by the order they occur in the array.The comparator is invoked
         * with two arguments: (arrVal, othVal).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {Array} array The array to inspect.
         * @param {Function} [comparator] The comparator invoked per element.
         * @returns {Array} Returns the new duplicate free array.
         * @example
         *
         * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 2 }];
         *
         * _.uniqWith(objects, _.isEqual);
         * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]
         */
        function uniqWith(array, comparator) {
          comparator =
            typeof comparator == "function" ? comparator : undefined$1
          return array && array.length
            ? baseUniq(array, undefined$1, comparator)
            : []
        }

        /**
         * This method is like `_.zip` except that it accepts an array of grouped
         * elements and creates an array regrouping the elements to their pre-zip
         * configuration.
         *
         * @static
         * @memberOf _
         * @since 1.2.0
         * @category Array
         * @param {Array} array The array of grouped elements to process.
         * @returns {Array} Returns the new array of regrouped elements.
         * @example
         *
         * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]);
         * // => [['a', 1, true], ['b', 2, false]]
         *
         * _.unzip(zipped);
         * // => [['a', 'b'], [1, 2], [true, false]]
         */
        function unzip(array) {
          if (!(array && array.length)) {
            return []
          }
          var length = 0
          array = arrayFilter(array, function(group) {
            if (isArrayLikeObject(group)) {
              length = nativeMax(group.length, length)
              return true
            }
          })
          return baseTimes(length, function(index) {
            return arrayMap(array, baseProperty(index))
          })
        }

        /**
         * This method is like `_.unzip` except that it accepts `iteratee` to specify
         * how regrouped values should be combined. The iteratee is invoked with the
         * elements of each group: (...group).
         *
         * @static
         * @memberOf _
         * @since 3.8.0
         * @category Array
         * @param {Array} array The array of grouped elements to process.
         * @param {Function} [iteratee=_.identity] The function to combine
         *  regrouped values.
         * @returns {Array} Returns the new array of regrouped elements.
         * @example
         *
         * var zipped = _.zip([1, 2], [10, 20], [100, 200]);
         * // => [[1, 10, 100], [2, 20, 200]]
         *
         * _.unzipWith(zipped, _.add);
         * // => [3, 30, 300]
         */
        function unzipWith(array, iteratee) {
          if (!(array && array.length)) {
            return []
          }
          var result = unzip(array)
          if (iteratee == null) {
            return result
          }
          return arrayMap(result, function(group) {
            return apply(iteratee, undefined$1, group)
          })
        }

        /**
         * Creates an array excluding all given values using
         * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
         * for equality comparisons.
         *
         * **Note:** Unlike `_.pull`, this method returns a new array.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Array
         * @param {Array} array The array to inspect.
         * @param {...*} [values] The values to exclude.
         * @returns {Array} Returns the new array of filtered values.
         * @see _.difference, _.xor
         * @example
         *
         * _.without([2, 1, 2, 3], 1, 2);
         * // => [3]
         */
        var without = baseRest(function(array, values) {
          return isArrayLikeObject(array) ? baseDifference(array, values) : []
        })

        /**
         * Creates an array of unique values that is the
         * [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference)
         * of the given arrays. The order of result values is determined by the order
         * they occur in the arrays.
         *
         * @static
         * @memberOf _
         * @since 2.4.0
         * @category Array
         * @param {...Array} [arrays] The arrays to inspect.
         * @returns {Array} Returns the new array of filtered values.
         * @see _.difference, _.without
         * @example
         *
         * _.xor([2, 1], [2, 3]);
         * // => [1, 3]
         */
        var xor = baseRest(function(arrays) {
          return baseXor(arrayFilter(arrays, isArrayLikeObject))
        })

        /**
         * This method is like `_.xor` except that it accepts `iteratee` which is
         * invoked for each element of each `arrays` to generate the criterion by
         * which by which they're compared. The order of result values is determined
         * by the order they occur in the arrays. The iteratee is invoked with one
         * argument: (value).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {...Array} [arrays] The arrays to inspect.
         * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
         * @returns {Array} Returns the new array of filtered values.
         * @example
         *
         * _.xorBy([2.1, 1.2], [2.3, 3.4], Math.floor);
         * // => [1.2, 3.4]
         *
         * // The `_.property` iteratee shorthand.
         * _.xorBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
         * // => [{ 'x': 2 }]
         */
        var xorBy = baseRest(function(arrays) {
          var iteratee = last(arrays)
          if (isArrayLikeObject(iteratee)) {
            iteratee = undefined$1
          }
          return baseXor(
            arrayFilter(arrays, isArrayLikeObject),
            getIteratee(iteratee, 2)
          )
        })

        /**
         * This method is like `_.xor` except that it accepts `comparator` which is
         * invoked to compare elements of `arrays`. The order of result values is
         * determined by the order they occur in the arrays. The comparator is invoked
         * with two arguments: (arrVal, othVal).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {...Array} [arrays] The arrays to inspect.
         * @param {Function} [comparator] The comparator invoked per element.
         * @returns {Array} Returns the new array of filtered values.
         * @example
         *
         * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
         * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];
         *
         * _.xorWith(objects, others, _.isEqual);
         * // => [{ 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]
         */
        var xorWith = baseRest(function(arrays) {
          var comparator = last(arrays)
          comparator =
            typeof comparator == "function" ? comparator : undefined$1
          return baseXor(
            arrayFilter(arrays, isArrayLikeObject),
            undefined$1,
            comparator
          )
        })

        /**
         * Creates an array of grouped elements, the first of which contains the
         * first elements of the given arrays, the second of which contains the
         * second elements of the given arrays, and so on.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Array
         * @param {...Array} [arrays] The arrays to process.
         * @returns {Array} Returns the new array of grouped elements.
         * @example
         *
         * _.zip(['a', 'b'], [1, 2], [true, false]);
         * // => [['a', 1, true], ['b', 2, false]]
         */
        var zip = baseRest(unzip)

        /**
         * This method is like `_.fromPairs` except that it accepts two arrays,
         * one of property identifiers and one of corresponding values.
         *
         * @static
         * @memberOf _
         * @since 0.4.0
         * @category Array
         * @param {Array} [props=[]] The property identifiers.
         * @param {Array} [values=[]] The property values.
         * @returns {Object} Returns the new object.
         * @example
         *
         * _.zipObject(['a', 'b'], [1, 2]);
         * // => { 'a': 1, 'b': 2 }
         */
        function zipObject(props, values) {
          return baseZipObject(props || [], values || [], assignValue)
        }

        /**
         * This method is like `_.zipObject` except that it supports property paths.
         *
         * @static
         * @memberOf _
         * @since 4.1.0
         * @category Array
         * @param {Array} [props=[]] The property identifiers.
         * @param {Array} [values=[]] The property values.
         * @returns {Object} Returns the new object.
         * @example
         *
         * _.zipObjectDeep(['a.b[0].c', 'a.b[1].d'], [1, 2]);
         * // => { 'a': { 'b': [{ 'c': 1 }, { 'd': 2 }] } }
         */
        function zipObjectDeep(props, values) {
          return baseZipObject(props || [], values || [], baseSet)
        }

        /**
         * This method is like `_.zip` except that it accepts `iteratee` to specify
         * how grouped values should be combined. The iteratee is invoked with the
         * elements of each group: (...group).
         *
         * @static
         * @memberOf _
         * @since 3.8.0
         * @category Array
         * @param {...Array} [arrays] The arrays to process.
         * @param {Function} [iteratee=_.identity] The function to combine
         *  grouped values.
         * @returns {Array} Returns the new array of grouped elements.
         * @example
         *
         * _.zipWith([1, 2], [10, 20], [100, 200], function(a, b, c) {
         *   return a + b + c;
         * });
         * // => [111, 222]
         */
        var zipWith = baseRest(function(arrays) {
          var length = arrays.length,
            iteratee = length > 1 ? arrays[length - 1] : undefined$1

          iteratee =
            typeof iteratee == "function"
              ? (arrays.pop(), iteratee)
              : undefined$1
          return unzipWith(arrays, iteratee)
        })

        /*------------------------------------------------------------------------*/

        /**
         * Creates a `lodash` wrapper instance that wraps `value` with explicit method
         * chain sequences enabled. The result of such sequences must be unwrapped
         * with `_#value`.
         *
         * @static
         * @memberOf _
         * @since 1.3.0
         * @category Seq
         * @param {*} value The value to wrap.
         * @returns {Object} Returns the new `lodash` wrapper instance.
         * @example
         *
         * var users = [
         *   { 'user': 'barney',  'age': 36 },
         *   { 'user': 'fred',    'age': 40 },
         *   { 'user': 'pebbles', 'age': 1 }
         * ];
         *
         * var youngest = _
         *   .chain(users)
         *   .sortBy('age')
         *   .map(function(o) {
         *     return o.user + ' is ' + o.age;
         *   })
         *   .head()
         *   .value();
         * // => 'pebbles is 1'
         */
        function chain(value) {
          var result = lodash(value)
          result.__chain__ = true
          return result
        }

        /**
         * This method invokes `interceptor` and returns `value`. The interceptor
         * is invoked with one argument; (value). The purpose of this method is to
         * "tap into" a method chain sequence in order to modify intermediate results.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Seq
         * @param {*} value The value to provide to `interceptor`.
         * @param {Function} interceptor The function to invoke.
         * @returns {*} Returns `value`.
         * @example
         *
         * _([1, 2, 3])
         *  .tap(function(array) {
         *    // Mutate input array.
         *    array.pop();
         *  })
         *  .reverse()
         *  .value();
         * // => [2, 1]
         */
        function tap(value, interceptor) {
          interceptor(value)
          return value
        }

        /**
         * This method is like `_.tap` except that it returns the result of `interceptor`.
         * The purpose of this method is to "pass thru" values replacing intermediate
         * results in a method chain sequence.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Seq
         * @param {*} value The value to provide to `interceptor`.
         * @param {Function} interceptor The function to invoke.
         * @returns {*} Returns the result of `interceptor`.
         * @example
         *
         * _('  abc  ')
         *  .chain()
         *  .trim()
         *  .thru(function(value) {
         *    return [value];
         *  })
         *  .value();
         * // => ['abc']
         */
        function thru(value, interceptor) {
          return interceptor(value)
        }

        /**
         * This method is the wrapper version of `_.at`.
         *
         * @name at
         * @memberOf _
         * @since 1.0.0
         * @category Seq
         * @param {...(string|string[])} [paths] The property paths to pick.
         * @returns {Object} Returns the new `lodash` wrapper instance.
         * @example
         *
         * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };
         *
         * _(object).at(['a[0].b.c', 'a[1]']).value();
         * // => [3, 4]
         */
        var wrapperAt = flatRest(function(paths) {
          var length = paths.length,
            start = length ? paths[0] : 0,
            value = this.__wrapped__,
            interceptor = function(object) {
              return baseAt(object, paths)
            }

          if (
            length > 1 ||
            this.__actions__.length ||
            !(value instanceof LazyWrapper) ||
            !isIndex(start)
          ) {
            return this.thru(interceptor)
          }
          value = value.slice(start, +start + (length ? 1 : 0))
          value.__actions__.push({
            func: thru,
            args: [interceptor],
            thisArg: undefined$1,
          })
          return new LodashWrapper(value, this.__chain__).thru(function(array) {
            if (length && !array.length) {
              array.push(undefined$1)
            }
            return array
          })
        })

        /**
         * Creates a `lodash` wrapper instance with explicit method chain sequences enabled.
         *
         * @name chain
         * @memberOf _
         * @since 0.1.0
         * @category Seq
         * @returns {Object} Returns the new `lodash` wrapper instance.
         * @example
         *
         * var users = [
         *   { 'user': 'barney', 'age': 36 },
         *   { 'user': 'fred',   'age': 40 }
         * ];
         *
         * // A sequence without explicit chaining.
         * _(users).head();
         * // => { 'user': 'barney', 'age': 36 }
         *
         * // A sequence with explicit chaining.
         * _(users)
         *   .chain()
         *   .head()
         *   .pick('user')
         *   .value();
         * // => { 'user': 'barney' }
         */
        function wrapperChain() {
          return chain(this)
        }

        /**
         * Executes the chain sequence and returns the wrapped result.
         *
         * @name commit
         * @memberOf _
         * @since 3.2.0
         * @category Seq
         * @returns {Object} Returns the new `lodash` wrapper instance.
         * @example
         *
         * var array = [1, 2];
         * var wrapped = _(array).push(3);
         *
         * console.log(array);
         * // => [1, 2]
         *
         * wrapped = wrapped.commit();
         * console.log(array);
         * // => [1, 2, 3]
         *
         * wrapped.last();
         * // => 3
         *
         * console.log(array);
         * // => [1, 2, 3]
         */
        function wrapperCommit() {
          return new LodashWrapper(this.value(), this.__chain__)
        }

        /**
         * Gets the next value on a wrapped object following the
         * [iterator protocol](https://mdn.io/iteration_protocols#iterator).
         *
         * @name next
         * @memberOf _
         * @since 4.0.0
         * @category Seq
         * @returns {Object} Returns the next iterator value.
         * @example
         *
         * var wrapped = _([1, 2]);
         *
         * wrapped.next();
         * // => { 'done': false, 'value': 1 }
         *
         * wrapped.next();
         * // => { 'done': false, 'value': 2 }
         *
         * wrapped.next();
         * // => { 'done': true, 'value': undefined }
         */
        function wrapperNext() {
          if (this.__values__ === undefined$1) {
            this.__values__ = toArray(this.value())
          }
          var done = this.__index__ >= this.__values__.length,
            value = done ? undefined$1 : this.__values__[this.__index__++]

          return { done: done, value: value }
        }

        /**
         * Enables the wrapper to be iterable.
         *
         * @name Symbol.iterator
         * @memberOf _
         * @since 4.0.0
         * @category Seq
         * @returns {Object} Returns the wrapper object.
         * @example
         *
         * var wrapped = _([1, 2]);
         *
         * wrapped[Symbol.iterator]() === wrapped;
         * // => true
         *
         * Array.from(wrapped);
         * // => [1, 2]
         */
        function wrapperToIterator() {
          return this
        }

        /**
         * Creates a clone of the chain sequence planting `value` as the wrapped value.
         *
         * @name plant
         * @memberOf _
         * @since 3.2.0
         * @category Seq
         * @param {*} value The value to plant.
         * @returns {Object} Returns the new `lodash` wrapper instance.
         * @example
         *
         * function square(n) {
         *   return n * n;
         * }
         *
         * var wrapped = _([1, 2]).map(square);
         * var other = wrapped.plant([3, 4]);
         *
         * other.value();
         * // => [9, 16]
         *
         * wrapped.value();
         * // => [1, 4]
         */
        function wrapperPlant(value) {
          var result,
            parent = this

          while (parent instanceof baseLodash) {
            var clone = wrapperClone(parent)
            clone.__index__ = 0
            clone.__values__ = undefined$1
            if (result) {
              previous.__wrapped__ = clone
            } else {
              result = clone
            }
            var previous = clone
            parent = parent.__wrapped__
          }
          previous.__wrapped__ = value
          return result
        }

        /**
         * This method is the wrapper version of `_.reverse`.
         *
         * **Note:** This method mutates the wrapped array.
         *
         * @name reverse
         * @memberOf _
         * @since 0.1.0
         * @category Seq
         * @returns {Object} Returns the new `lodash` wrapper instance.
         * @example
         *
         * var array = [1, 2, 3];
         *
         * _(array).reverse().value()
         * // => [3, 2, 1]
         *
         * console.log(array);
         * // => [3, 2, 1]
         */
        function wrapperReverse() {
          var value = this.__wrapped__
          if (value instanceof LazyWrapper) {
            var wrapped = value
            if (this.__actions__.length) {
              wrapped = new LazyWrapper(this)
            }
            wrapped = wrapped.reverse()
            wrapped.__actions__.push({
              func: thru,
              args: [reverse],
              thisArg: undefined$1,
            })
            return new LodashWrapper(wrapped, this.__chain__)
          }
          return this.thru(reverse)
        }

        /**
         * Executes the chain sequence to resolve the unwrapped value.
         *
         * @name value
         * @memberOf _
         * @since 0.1.0
         * @alias toJSON, valueOf
         * @category Seq
         * @returns {*} Returns the resolved unwrapped value.
         * @example
         *
         * _([1, 2, 3]).value();
         * // => [1, 2, 3]
         */
        function wrapperValue() {
          return baseWrapperValue(this.__wrapped__, this.__actions__)
        }

        /*------------------------------------------------------------------------*/

        /**
         * Creates an object composed of keys generated from the results of running
         * each element of `collection` thru `iteratee`. The corresponding value of
         * each key is the number of times the key was returned by `iteratee`. The
         * iteratee is invoked with one argument: (value).
         *
         * @static
         * @memberOf _
         * @since 0.5.0
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} [iteratee=_.identity] The iteratee to transform keys.
         * @returns {Object} Returns the composed aggregate object.
         * @example
         *
         * _.countBy([6.1, 4.2, 6.3], Math.floor);
         * // => { '4': 1, '6': 2 }
         *
         * // The `_.property` iteratee shorthand.
         * _.countBy(['one', 'two', 'three'], 'length');
         * // => { '3': 2, '5': 1 }
         */
        var countBy = createAggregator(function(result, value, key) {
          if (hasOwnProperty.call(result, key)) {
            ++result[key]
          } else {
            baseAssignValue(result, key, 1)
          }
        })

        /**
         * Checks if `predicate` returns truthy for **all** elements of `collection`.
         * Iteration is stopped once `predicate` returns falsey. The predicate is
         * invoked with three arguments: (value, index|key, collection).
         *
         * **Note:** This method returns `true` for
         * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because
         * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of
         * elements of empty collections.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} [predicate=_.identity] The function invoked per iteration.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {boolean} Returns `true` if all elements pass the predicate check,
         *  else `false`.
         * @example
         *
         * _.every([true, 1, null, 'yes'], Boolean);
         * // => false
         *
         * var users = [
         *   { 'user': 'barney', 'age': 36, 'active': false },
         *   { 'user': 'fred',   'age': 40, 'active': false }
         * ];
         *
         * // The `_.matches` iteratee shorthand.
         * _.every(users, { 'user': 'barney', 'active': false });
         * // => false
         *
         * // The `_.matchesProperty` iteratee shorthand.
         * _.every(users, ['active', false]);
         * // => true
         *
         * // The `_.property` iteratee shorthand.
         * _.every(users, 'active');
         * // => false
         */
        function every(collection, predicate, guard) {
          var func = isArray(collection) ? arrayEvery : baseEvery
          if (guard && isIterateeCall(collection, predicate, guard)) {
            predicate = undefined$1
          }
          return func(collection, getIteratee(predicate, 3))
        }

        /**
         * Iterates over elements of `collection`, returning an array of all elements
         * `predicate` returns truthy for. The predicate is invoked with three
         * arguments: (value, index|key, collection).
         *
         * **Note:** Unlike `_.remove`, this method returns a new array.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} [predicate=_.identity] The function invoked per iteration.
         * @returns {Array} Returns the new filtered array.
         * @see _.reject
         * @example
         *
         * var users = [
         *   { 'user': 'barney', 'age': 36, 'active': true },
         *   { 'user': 'fred',   'age': 40, 'active': false }
         * ];
         *
         * _.filter(users, function(o) { return !o.active; });
         * // => objects for ['fred']
         *
         * // The `_.matches` iteratee shorthand.
         * _.filter(users, { 'age': 36, 'active': true });
         * // => objects for ['barney']
         *
         * // The `_.matchesProperty` iteratee shorthand.
         * _.filter(users, ['active', false]);
         * // => objects for ['fred']
         *
         * // The `_.property` iteratee shorthand.
         * _.filter(users, 'active');
         * // => objects for ['barney']
         */
        function filter(collection, predicate) {
          var func = isArray(collection) ? arrayFilter : baseFilter
          return func(collection, getIteratee(predicate, 3))
        }

        /**
         * Iterates over elements of `collection`, returning the first element
         * `predicate` returns truthy for. The predicate is invoked with three
         * arguments: (value, index|key, collection).
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Collection
         * @param {Array|Object} collection The collection to inspect.
         * @param {Function} [predicate=_.identity] The function invoked per iteration.
         * @param {number} [fromIndex=0] The index to search from.
         * @returns {*} Returns the matched element, else `undefined`.
         * @example
         *
         * var users = [
         *   { 'user': 'barney',  'age': 36, 'active': true },
         *   { 'user': 'fred',    'age': 40, 'active': false },
         *   { 'user': 'pebbles', 'age': 1,  'active': true }
         * ];
         *
         * _.find(users, function(o) { return o.age < 40; });
         * // => object for 'barney'
         *
         * // The `_.matches` iteratee shorthand.
         * _.find(users, { 'age': 1, 'active': true });
         * // => object for 'pebbles'
         *
         * // The `_.matchesProperty` iteratee shorthand.
         * _.find(users, ['active', false]);
         * // => object for 'fred'
         *
         * // The `_.property` iteratee shorthand.
         * _.find(users, 'active');
         * // => object for 'barney'
         */
        var find = createFind(findIndex)

        /**
         * This method is like `_.find` except that it iterates over elements of
         * `collection` from right to left.
         *
         * @static
         * @memberOf _
         * @since 2.0.0
         * @category Collection
         * @param {Array|Object} collection The collection to inspect.
         * @param {Function} [predicate=_.identity] The function invoked per iteration.
         * @param {number} [fromIndex=collection.length-1] The index to search from.
         * @returns {*} Returns the matched element, else `undefined`.
         * @example
         *
         * _.findLast([1, 2, 3, 4], function(n) {
         *   return n % 2 == 1;
         * });
         * // => 3
         */
        var findLast = createFind(findLastIndex)

        /**
         * Creates a flattened array of values by running each element in `collection`
         * thru `iteratee` and flattening the mapped results. The iteratee is invoked
         * with three arguments: (value, index|key, collection).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} [iteratee=_.identity] The function invoked per iteration.
         * @returns {Array} Returns the new flattened array.
         * @example
         *
         * function duplicate(n) {
         *   return [n, n];
         * }
         *
         * _.flatMap([1, 2], duplicate);
         * // => [1, 1, 2, 2]
         */
        function flatMap(collection, iteratee) {
          return baseFlatten(map(collection, iteratee), 1)
        }

        /**
         * This method is like `_.flatMap` except that it recursively flattens the
         * mapped results.
         *
         * @static
         * @memberOf _
         * @since 4.7.0
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} [iteratee=_.identity] The function invoked per iteration.
         * @returns {Array} Returns the new flattened array.
         * @example
         *
         * function duplicate(n) {
         *   return [[[n, n]]];
         * }
         *
         * _.flatMapDeep([1, 2], duplicate);
         * // => [1, 1, 2, 2]
         */
        function flatMapDeep(collection, iteratee) {
          return baseFlatten(map(collection, iteratee), INFINITY)
        }

        /**
         * This method is like `_.flatMap` except that it recursively flattens the
         * mapped results up to `depth` times.
         *
         * @static
         * @memberOf _
         * @since 4.7.0
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} [iteratee=_.identity] The function invoked per iteration.
         * @param {number} [depth=1] The maximum recursion depth.
         * @returns {Array} Returns the new flattened array.
         * @example
         *
         * function duplicate(n) {
         *   return [[[n, n]]];
         * }
         *
         * _.flatMapDepth([1, 2], duplicate, 2);
         * // => [[1, 1], [2, 2]]
         */
        function flatMapDepth(collection, iteratee, depth) {
          depth = depth === undefined$1 ? 1 : toInteger(depth)
          return baseFlatten(map(collection, iteratee), depth)
        }

        /**
         * Iterates over elements of `collection` and invokes `iteratee` for each element.
         * The iteratee is invoked with three arguments: (value, index|key, collection).
         * Iteratee functions may exit iteration early by explicitly returning `false`.
         *
         * **Note:** As with other "Collections" methods, objects with a "length"
         * property are iterated like arrays. To avoid this behavior use `_.forIn`
         * or `_.forOwn` for object iteration.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @alias each
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} [iteratee=_.identity] The function invoked per iteration.
         * @returns {Array|Object} Returns `collection`.
         * @see _.forEachRight
         * @example
         *
         * _.forEach([1, 2], function(value) {
         *   console.log(value);
         * });
         * // => Logs `1` then `2`.
         *
         * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) {
         *   console.log(key);
         * });
         * // => Logs 'a' then 'b' (iteration order is not guaranteed).
         */
        function forEach(collection, iteratee) {
          var func = isArray(collection) ? arrayEach : baseEach
          return func(collection, getIteratee(iteratee, 3))
        }

        /**
         * This method is like `_.forEach` except that it iterates over elements of
         * `collection` from right to left.
         *
         * @static
         * @memberOf _
         * @since 2.0.0
         * @alias eachRight
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} [iteratee=_.identity] The function invoked per iteration.
         * @returns {Array|Object} Returns `collection`.
         * @see _.forEach
         * @example
         *
         * _.forEachRight([1, 2], function(value) {
         *   console.log(value);
         * });
         * // => Logs `2` then `1`.
         */
        function forEachRight(collection, iteratee) {
          var func = isArray(collection) ? arrayEachRight : baseEachRight
          return func(collection, getIteratee(iteratee, 3))
        }

        /**
         * Creates an object composed of keys generated from the results of running
         * each element of `collection` thru `iteratee`. The order of grouped values
         * is determined by the order they occur in `collection`. The corresponding
         * value of each key is an array of elements responsible for generating the
         * key. The iteratee is invoked with one argument: (value).
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} [iteratee=_.identity] The iteratee to transform keys.
         * @returns {Object} Returns the composed aggregate object.
         * @example
         *
         * _.groupBy([6.1, 4.2, 6.3], Math.floor);
         * // => { '4': [4.2], '6': [6.1, 6.3] }
         *
         * // The `_.property` iteratee shorthand.
         * _.groupBy(['one', 'two', 'three'], 'length');
         * // => { '3': ['one', 'two'], '5': ['three'] }
         */
        var groupBy = createAggregator(function(result, value, key) {
          if (hasOwnProperty.call(result, key)) {
            result[key].push(value)
          } else {
            baseAssignValue(result, key, [value])
          }
        })

        /**
         * Checks if `value` is in `collection`. If `collection` is a string, it's
         * checked for a substring of `value`, otherwise
         * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
         * is used for equality comparisons. If `fromIndex` is negative, it's used as
         * the offset from the end of `collection`.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Collection
         * @param {Array|Object|string} collection The collection to inspect.
         * @param {*} value The value to search for.
         * @param {number} [fromIndex=0] The index to search from.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.
         * @returns {boolean} Returns `true` if `value` is found, else `false`.
         * @example
         *
         * _.includes([1, 2, 3], 1);
         * // => true
         *
         * _.includes([1, 2, 3], 1, 2);
         * // => false
         *
         * _.includes({ 'a': 1, 'b': 2 }, 1);
         * // => true
         *
         * _.includes('abcd', 'bc');
         * // => true
         */
        function includes(collection, value, fromIndex, guard) {
          collection = isArrayLike(collection) ? collection : values(collection)
          fromIndex = fromIndex && !guard ? toInteger(fromIndex) : 0

          var length = collection.length
          if (fromIndex < 0) {
            fromIndex = nativeMax(length + fromIndex, 0)
          }
          return isString(collection)
            ? fromIndex <= length && collection.indexOf(value, fromIndex) > -1
            : !!length && baseIndexOf(collection, value, fromIndex) > -1
        }

        /**
         * Invokes the method at `path` of each element in `collection`, returning
         * an array of the results of each invoked method. Any additional arguments
         * are provided to each invoked method. If `path` is a function, it's invoked
         * for, and `this` bound to, each element in `collection`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Array|Function|string} path The path of the method to invoke or
         *  the function invoked per iteration.
         * @param {...*} [args] The arguments to invoke each method with.
         * @returns {Array} Returns the array of results.
         * @example
         *
         * _.invokeMap([[5, 1, 7], [3, 2, 1]], 'sort');
         * // => [[1, 5, 7], [1, 2, 3]]
         *
         * _.invokeMap([123, 456], String.prototype.split, '');
         * // => [['1', '2', '3'], ['4', '5', '6']]
         */
        var invokeMap = baseRest(function(collection, path, args) {
          var index = -1,
            isFunc = typeof path == "function",
            result = isArrayLike(collection) ? Array(collection.length) : []

          baseEach(collection, function(value) {
            result[++index] = isFunc
              ? apply(path, value, args)
              : baseInvoke(value, path, args)
          })
          return result
        })

        /**
         * Creates an object composed of keys generated from the results of running
         * each element of `collection` thru `iteratee`. The corresponding value of
         * each key is the last element responsible for generating the key. The
         * iteratee is invoked with one argument: (value).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} [iteratee=_.identity] The iteratee to transform keys.
         * @returns {Object} Returns the composed aggregate object.
         * @example
         *
         * var array = [
         *   { 'dir': 'left', 'code': 97 },
         *   { 'dir': 'right', 'code': 100 }
         * ];
         *
         * _.keyBy(array, function(o) {
         *   return String.fromCharCode(o.code);
         * });
         * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }
         *
         * _.keyBy(array, 'dir');
         * // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } }
         */
        var keyBy = createAggregator(function(result, value, key) {
          baseAssignValue(result, key, value)
        })

        /**
         * Creates an array of values by running each element in `collection` thru
         * `iteratee`. The iteratee is invoked with three arguments:
         * (value, index|key, collection).
         *
         * Many lodash methods are guarded to work as iteratees for methods like
         * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`.
         *
         * The guarded methods are:
         * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`,
         * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`,
         * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`,
         * `template`, `trim`, `trimEnd`, `trimStart`, and `words`
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} [iteratee=_.identity] The function invoked per iteration.
         * @returns {Array} Returns the new mapped array.
         * @example
         *
         * function square(n) {
         *   return n * n;
         * }
         *
         * _.map([4, 8], square);
         * // => [16, 64]
         *
         * _.map({ 'a': 4, 'b': 8 }, square);
         * // => [16, 64] (iteration order is not guaranteed)
         *
         * var users = [
         *   { 'user': 'barney' },
         *   { 'user': 'fred' }
         * ];
         *
         * // The `_.property` iteratee shorthand.
         * _.map(users, 'user');
         * // => ['barney', 'fred']
         */
        function map(collection, iteratee) {
          var func = isArray(collection) ? arrayMap : baseMap
          return func(collection, getIteratee(iteratee, 3))
        }

        /**
         * This method is like `_.sortBy` except that it allows specifying the sort
         * orders of the iteratees to sort by. If `orders` is unspecified, all values
         * are sorted in ascending order. Otherwise, specify an order of "desc" for
         * descending or "asc" for ascending sort order of corresponding values.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Array[]|Function[]|Object[]|string[]} [iteratees=[_.identity]]
         *  The iteratees to sort by.
         * @param {string[]} [orders] The sort orders of `iteratees`.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.
         * @returns {Array} Returns the new sorted array.
         * @example
         *
         * var users = [
         *   { 'user': 'fred',   'age': 48 },
         *   { 'user': 'barney', 'age': 34 },
         *   { 'user': 'fred',   'age': 40 },
         *   { 'user': 'barney', 'age': 36 }
         * ];
         *
         * // Sort by `user` in ascending order and by `age` in descending order.
         * _.orderBy(users, ['user', 'age'], ['asc', 'desc']);
         * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]]
         */
        function orderBy(collection, iteratees, orders, guard) {
          if (collection == null) {
            return []
          }
          if (!isArray(iteratees)) {
            iteratees = iteratees == null ? [] : [iteratees]
          }
          orders = guard ? undefined$1 : orders
          if (!isArray(orders)) {
            orders = orders == null ? [] : [orders]
          }
          return baseOrderBy(collection, iteratees, orders)
        }

        /**
         * Creates an array of elements split into two groups, the first of which
         * contains elements `predicate` returns truthy for, the second of which
         * contains elements `predicate` returns falsey for. The predicate is
         * invoked with one argument: (value).
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} [predicate=_.identity] The function invoked per iteration.
         * @returns {Array} Returns the array of grouped elements.
         * @example
         *
         * var users = [
         *   { 'user': 'barney',  'age': 36, 'active': false },
         *   { 'user': 'fred',    'age': 40, 'active': true },
         *   { 'user': 'pebbles', 'age': 1,  'active': false }
         * ];
         *
         * _.partition(users, function(o) { return o.active; });
         * // => objects for [['fred'], ['barney', 'pebbles']]
         *
         * // The `_.matches` iteratee shorthand.
         * _.partition(users, { 'age': 1, 'active': false });
         * // => objects for [['pebbles'], ['barney', 'fred']]
         *
         * // The `_.matchesProperty` iteratee shorthand.
         * _.partition(users, ['active', false]);
         * // => objects for [['barney', 'pebbles'], ['fred']]
         *
         * // The `_.property` iteratee shorthand.
         * _.partition(users, 'active');
         * // => objects for [['fred'], ['barney', 'pebbles']]
         */
        var partition = createAggregator(
          function(result, value, key) {
            result[key ? 0 : 1].push(value)
          },
          function() {
            return [[], []]
          }
        )

        /**
         * Reduces `collection` to a value which is the accumulated result of running
         * each element in `collection` thru `iteratee`, where each successive
         * invocation is supplied the return value of the previous. If `accumulator`
         * is not given, the first element of `collection` is used as the initial
         * value. The iteratee is invoked with four arguments:
         * (accumulator, value, index|key, collection).
         *
         * Many lodash methods are guarded to work as iteratees for methods like
         * `_.reduce`, `_.reduceRight`, and `_.transform`.
         *
         * The guarded methods are:
         * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`,
         * and `sortBy`
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} [iteratee=_.identity] The function invoked per iteration.
         * @param {*} [accumulator] The initial value.
         * @returns {*} Returns the accumulated value.
         * @see _.reduceRight
         * @example
         *
         * _.reduce([1, 2], function(sum, n) {
         *   return sum + n;
         * }, 0);
         * // => 3
         *
         * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {
         *   (result[value] || (result[value] = [])).push(key);
         *   return result;
         * }, {});
         * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed)
         */
        function reduce(collection, iteratee, accumulator) {
          var func = isArray(collection) ? arrayReduce : baseReduce,
            initAccum = arguments.length < 3

          return func(
            collection,
            getIteratee(iteratee, 4),
            accumulator,
            initAccum,
            baseEach
          )
        }

        /**
         * This method is like `_.reduce` except that it iterates over elements of
         * `collection` from right to left.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} [iteratee=_.identity] The function invoked per iteration.
         * @param {*} [accumulator] The initial value.
         * @returns {*} Returns the accumulated value.
         * @see _.reduce
         * @example
         *
         * var array = [[0, 1], [2, 3], [4, 5]];
         *
         * _.reduceRight(array, function(flattened, other) {
         *   return flattened.concat(other);
         * }, []);
         * // => [4, 5, 2, 3, 0, 1]
         */
        function reduceRight(collection, iteratee, accumulator) {
          var func = isArray(collection) ? arrayReduceRight : baseReduce,
            initAccum = arguments.length < 3

          return func(
            collection,
            getIteratee(iteratee, 4),
            accumulator,
            initAccum,
            baseEachRight
          )
        }

        /**
         * The opposite of `_.filter`; this method returns the elements of `collection`
         * that `predicate` does **not** return truthy for.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} [predicate=_.identity] The function invoked per iteration.
         * @returns {Array} Returns the new filtered array.
         * @see _.filter
         * @example
         *
         * var users = [
         *   { 'user': 'barney', 'age': 36, 'active': false },
         *   { 'user': 'fred',   'age': 40, 'active': true }
         * ];
         *
         * _.reject(users, function(o) { return !o.active; });
         * // => objects for ['fred']
         *
         * // The `_.matches` iteratee shorthand.
         * _.reject(users, { 'age': 40, 'active': true });
         * // => objects for ['barney']
         *
         * // The `_.matchesProperty` iteratee shorthand.
         * _.reject(users, ['active', false]);
         * // => objects for ['fred']
         *
         * // The `_.property` iteratee shorthand.
         * _.reject(users, 'active');
         * // => objects for ['barney']
         */
        function reject(collection, predicate) {
          var func = isArray(collection) ? arrayFilter : baseFilter
          return func(collection, negate(getIteratee(predicate, 3)))
        }

        /**
         * Gets a random element from `collection`.
         *
         * @static
         * @memberOf _
         * @since 2.0.0
         * @category Collection
         * @param {Array|Object} collection The collection to sample.
         * @returns {*} Returns the random element.
         * @example
         *
         * _.sample([1, 2, 3, 4]);
         * // => 2
         */
        function sample(collection) {
          var func = isArray(collection) ? arraySample : baseSample
          return func(collection)
        }

        /**
         * Gets `n` random elements at unique keys from `collection` up to the
         * size of `collection`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Collection
         * @param {Array|Object} collection The collection to sample.
         * @param {number} [n=1] The number of elements to sample.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {Array} Returns the random elements.
         * @example
         *
         * _.sampleSize([1, 2, 3], 2);
         * // => [3, 1]
         *
         * _.sampleSize([1, 2, 3], 4);
         * // => [2, 3, 1]
         */
        function sampleSize(collection, n, guard) {
          if (
            guard ? isIterateeCall(collection, n, guard) : n === undefined$1
          ) {
            n = 1
          } else {
            n = toInteger(n)
          }
          var func = isArray(collection) ? arraySampleSize : baseSampleSize
          return func(collection, n)
        }

        /**
         * Creates an array of shuffled values, using a version of the
         * [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle).
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Collection
         * @param {Array|Object} collection The collection to shuffle.
         * @returns {Array} Returns the new shuffled array.
         * @example
         *
         * _.shuffle([1, 2, 3, 4]);
         * // => [4, 1, 3, 2]
         */
        function shuffle(collection) {
          var func = isArray(collection) ? arrayShuffle : baseShuffle
          return func(collection)
        }

        /**
         * Gets the size of `collection` by returning its length for array-like
         * values or the number of own enumerable string keyed properties for objects.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Collection
         * @param {Array|Object|string} collection The collection to inspect.
         * @returns {number} Returns the collection size.
         * @example
         *
         * _.size([1, 2, 3]);
         * // => 3
         *
         * _.size({ 'a': 1, 'b': 2 });
         * // => 2
         *
         * _.size('pebbles');
         * // => 7
         */
        function size(collection) {
          if (collection == null) {
            return 0
          }
          if (isArrayLike(collection)) {
            return isString(collection)
              ? stringSize(collection)
              : collection.length
          }
          var tag = getTag(collection)
          if (tag == mapTag || tag == setTag) {
            return collection.size
          }
          return baseKeys(collection).length
        }

        /**
         * Checks if `predicate` returns truthy for **any** element of `collection`.
         * Iteration is stopped once `predicate` returns truthy. The predicate is
         * invoked with three arguments: (value, index|key, collection).
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} [predicate=_.identity] The function invoked per iteration.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {boolean} Returns `true` if any element passes the predicate check,
         *  else `false`.
         * @example
         *
         * _.some([null, 0, 'yes', false], Boolean);
         * // => true
         *
         * var users = [
         *   { 'user': 'barney', 'active': true },
         *   { 'user': 'fred',   'active': false }
         * ];
         *
         * // The `_.matches` iteratee shorthand.
         * _.some(users, { 'user': 'barney', 'active': false });
         * // => false
         *
         * // The `_.matchesProperty` iteratee shorthand.
         * _.some(users, ['active', false]);
         * // => true
         *
         * // The `_.property` iteratee shorthand.
         * _.some(users, 'active');
         * // => true
         */
        function some(collection, predicate, guard) {
          var func = isArray(collection) ? arraySome : baseSome
          if (guard && isIterateeCall(collection, predicate, guard)) {
            predicate = undefined$1
          }
          return func(collection, getIteratee(predicate, 3))
        }

        /**
         * Creates an array of elements, sorted in ascending order by the results of
         * running each element in a collection thru each iteratee. This method
         * performs a stable sort, that is, it preserves the original sort order of
         * equal elements. The iteratees are invoked with one argument: (value).
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {...(Function|Function[])} [iteratees=[_.identity]]
         *  The iteratees to sort by.
         * @returns {Array} Returns the new sorted array.
         * @example
         *
         * var users = [
         *   { 'user': 'fred',   'age': 48 },
         *   { 'user': 'barney', 'age': 36 },
         *   { 'user': 'fred',   'age': 40 },
         *   { 'user': 'barney', 'age': 34 }
         * ];
         *
         * _.sortBy(users, [function(o) { return o.user; }]);
         * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]]
         *
         * _.sortBy(users, ['user', 'age']);
         * // => objects for [['barney', 34], ['barney', 36], ['fred', 40], ['fred', 48]]
         */
        var sortBy = baseRest(function(collection, iteratees) {
          if (collection == null) {
            return []
          }
          var length = iteratees.length
          if (
            length > 1 &&
            isIterateeCall(collection, iteratees[0], iteratees[1])
          ) {
            iteratees = []
          } else if (
            length > 2 &&
            isIterateeCall(iteratees[0], iteratees[1], iteratees[2])
          ) {
            iteratees = [iteratees[0]]
          }
          return baseOrderBy(collection, baseFlatten(iteratees, 1), [])
        })

        /*------------------------------------------------------------------------*/

        /**
         * Gets the timestamp of the number of milliseconds that have elapsed since
         * the Unix epoch (1 January 1970 00:00:00 UTC).
         *
         * @static
         * @memberOf _
         * @since 2.4.0
         * @category Date
         * @returns {number} Returns the timestamp.
         * @example
         *
         * _.defer(function(stamp) {
         *   console.log(_.now() - stamp);
         * }, _.now());
         * // => Logs the number of milliseconds it took for the deferred invocation.
         */
        var now =
          ctxNow ||
          function() {
            return root.Date.now()
          }

        /*------------------------------------------------------------------------*/

        /**
         * The opposite of `_.before`; this method creates a function that invokes
         * `func` once it's called `n` or more times.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Function
         * @param {number} n The number of calls before `func` is invoked.
         * @param {Function} func The function to restrict.
         * @returns {Function} Returns the new restricted function.
         * @example
         *
         * var saves = ['profile', 'settings'];
         *
         * var done = _.after(saves.length, function() {
         *   console.log('done saving!');
         * });
         *
         * _.forEach(saves, function(type) {
         *   asyncSave({ 'type': type, 'complete': done });
         * });
         * // => Logs 'done saving!' after the two async saves have completed.
         */
        function after(n, func) {
          if (typeof func != "function") {
            throw new TypeError(FUNC_ERROR_TEXT)
          }
          n = toInteger(n)
          return function() {
            if (--n < 1) {
              return func.apply(this, arguments)
            }
          }
        }

        /**
         * Creates a function that invokes `func`, with up to `n` arguments,
         * ignoring any additional arguments.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Function
         * @param {Function} func The function to cap arguments for.
         * @param {number} [n=func.length] The arity cap.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {Function} Returns the new capped function.
         * @example
         *
         * _.map(['6', '8', '10'], _.ary(parseInt, 1));
         * // => [6, 8, 10]
         */
        function ary(func, n, guard) {
          n = guard ? undefined$1 : n
          n = func && n == null ? func.length : n
          return createWrap(
            func,
            WRAP_ARY_FLAG,
            undefined$1,
            undefined$1,
            undefined$1,
            undefined$1,
            n
          )
        }

        /**
         * Creates a function that invokes `func`, with the `this` binding and arguments
         * of the created function, while it's called less than `n` times. Subsequent
         * calls to the created function return the result of the last `func` invocation.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Function
         * @param {number} n The number of calls at which `func` is no longer invoked.
         * @param {Function} func The function to restrict.
         * @returns {Function} Returns the new restricted function.
         * @example
         *
         * jQuery(element).on('click', _.before(5, addContactToList));
         * // => Allows adding up to 4 contacts to the list.
         */
        function before(n, func) {
          var result
          if (typeof func != "function") {
            throw new TypeError(FUNC_ERROR_TEXT)
          }
          n = toInteger(n)
          return function() {
            if (--n > 0) {
              result = func.apply(this, arguments)
            }
            if (n <= 1) {
              func = undefined$1
            }
            return result
          }
        }

        /**
         * Creates a function that invokes `func` with the `this` binding of `thisArg`
         * and `partials` prepended to the arguments it receives.
         *
         * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds,
         * may be used as a placeholder for partially applied arguments.
         *
         * **Note:** Unlike native `Function#bind`, this method doesn't set the "length"
         * property of bound functions.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Function
         * @param {Function} func The function to bind.
         * @param {*} thisArg The `this` binding of `func`.
         * @param {...*} [partials] The arguments to be partially applied.
         * @returns {Function} Returns the new bound function.
         * @example
         *
         * function greet(greeting, punctuation) {
         *   return greeting + ' ' + this.user + punctuation;
         * }
         *
         * var object = { 'user': 'fred' };
         *
         * var bound = _.bind(greet, object, 'hi');
         * bound('!');
         * // => 'hi fred!'
         *
         * // Bound with placeholders.
         * var bound = _.bind(greet, object, _, '!');
         * bound('hi');
         * // => 'hi fred!'
         */
        var bind = baseRest(function(func, thisArg, partials) {
          var bitmask = WRAP_BIND_FLAG
          if (partials.length) {
            var holders = replaceHolders(partials, getHolder(bind))
            bitmask |= WRAP_PARTIAL_FLAG
          }
          return createWrap(func, bitmask, thisArg, partials, holders)
        })

        /**
         * Creates a function that invokes the method at `object[key]` with `partials`
         * prepended to the arguments it receives.
         *
         * This method differs from `_.bind` by allowing bound functions to reference
         * methods that may be redefined or don't yet exist. See
         * [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern)
         * for more details.
         *
         * The `_.bindKey.placeholder` value, which defaults to `_` in monolithic
         * builds, may be used as a placeholder for partially applied arguments.
         *
         * @static
         * @memberOf _
         * @since 0.10.0
         * @category Function
         * @param {Object} object The object to invoke the method on.
         * @param {string} key The key of the method.
         * @param {...*} [partials] The arguments to be partially applied.
         * @returns {Function} Returns the new bound function.
         * @example
         *
         * var object = {
         *   'user': 'fred',
         *   'greet': function(greeting, punctuation) {
         *     return greeting + ' ' + this.user + punctuation;
         *   }
         * };
         *
         * var bound = _.bindKey(object, 'greet', 'hi');
         * bound('!');
         * // => 'hi fred!'
         *
         * object.greet = function(greeting, punctuation) {
         *   return greeting + 'ya ' + this.user + punctuation;
         * };
         *
         * bound('!');
         * // => 'hiya fred!'
         *
         * // Bound with placeholders.
         * var bound = _.bindKey(object, 'greet', _, '!');
         * bound('hi');
         * // => 'hiya fred!'
         */
        var bindKey = baseRest(function(object, key, partials) {
          var bitmask = WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG
          if (partials.length) {
            var holders = replaceHolders(partials, getHolder(bindKey))
            bitmask |= WRAP_PARTIAL_FLAG
          }
          return createWrap(key, bitmask, object, partials, holders)
        })

        /**
         * Creates a function that accepts arguments of `func` and either invokes
         * `func` returning its result, if at least `arity` number of arguments have
         * been provided, or returns a function that accepts the remaining `func`
         * arguments, and so on. The arity of `func` may be specified if `func.length`
         * is not sufficient.
         *
         * The `_.curry.placeholder` value, which defaults to `_` in monolithic builds,
         * may be used as a placeholder for provided arguments.
         *
         * **Note:** This method doesn't set the "length" property of curried functions.
         *
         * @static
         * @memberOf _
         * @since 2.0.0
         * @category Function
         * @param {Function} func The function to curry.
         * @param {number} [arity=func.length] The arity of `func`.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {Function} Returns the new curried function.
         * @example
         *
         * var abc = function(a, b, c) {
         *   return [a, b, c];
         * };
         *
         * var curried = _.curry(abc);
         *
         * curried(1)(2)(3);
         * // => [1, 2, 3]
         *
         * curried(1, 2)(3);
         * // => [1, 2, 3]
         *
         * curried(1, 2, 3);
         * // => [1, 2, 3]
         *
         * // Curried with placeholders.
         * curried(1)(_, 3)(2);
         * // => [1, 2, 3]
         */
        function curry(func, arity, guard) {
          arity = guard ? undefined$1 : arity
          var result = createWrap(
            func,
            WRAP_CURRY_FLAG,
            undefined$1,
            undefined$1,
            undefined$1,
            undefined$1,
            undefined$1,
            arity
          )
          result.placeholder = curry.placeholder
          return result
        }

        /**
         * This method is like `_.curry` except that arguments are applied to `func`
         * in the manner of `_.partialRight` instead of `_.partial`.
         *
         * The `_.curryRight.placeholder` value, which defaults to `_` in monolithic
         * builds, may be used as a placeholder for provided arguments.
         *
         * **Note:** This method doesn't set the "length" property of curried functions.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Function
         * @param {Function} func The function to curry.
         * @param {number} [arity=func.length] The arity of `func`.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {Function} Returns the new curried function.
         * @example
         *
         * var abc = function(a, b, c) {
         *   return [a, b, c];
         * };
         *
         * var curried = _.curryRight(abc);
         *
         * curried(3)(2)(1);
         * // => [1, 2, 3]
         *
         * curried(2, 3)(1);
         * // => [1, 2, 3]
         *
         * curried(1, 2, 3);
         * // => [1, 2, 3]
         *
         * // Curried with placeholders.
         * curried(3)(1, _)(2);
         * // => [1, 2, 3]
         */
        function curryRight(func, arity, guard) {
          arity = guard ? undefined$1 : arity
          var result = createWrap(
            func,
            WRAP_CURRY_RIGHT_FLAG,
            undefined$1,
            undefined$1,
            undefined$1,
            undefined$1,
            undefined$1,
            arity
          )
          result.placeholder = curryRight.placeholder
          return result
        }

        /**
         * Creates a debounced function that delays invoking `func` until after `wait`
         * milliseconds have elapsed since the last time the debounced function was
         * invoked. The debounced function comes with a `cancel` method to cancel
         * delayed `func` invocations and a `flush` method to immediately invoke them.
         * Provide `options` to indicate whether `func` should be invoked on the
         * leading and/or trailing edge of the `wait` timeout. The `func` is invoked
         * with the last arguments provided to the debounced function. Subsequent
         * calls to the debounced function return the result of the last `func`
         * invocation.
         *
         * **Note:** If `leading` and `trailing` options are `true`, `func` is
         * invoked on the trailing edge of the timeout only if the debounced function
         * is invoked more than once during the `wait` timeout.
         *
         * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred
         * until to the next tick, similar to `setTimeout` with a timeout of `0`.
         *
         * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
         * for details over the differences between `_.debounce` and `_.throttle`.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Function
         * @param {Function} func The function to debounce.
         * @param {number} [wait=0] The number of milliseconds to delay.
         * @param {Object} [options={}] The options object.
         * @param {boolean} [options.leading=false]
         *  Specify invoking on the leading edge of the timeout.
         * @param {number} [options.maxWait]
         *  The maximum time `func` is allowed to be delayed before it's invoked.
         * @param {boolean} [options.trailing=true]
         *  Specify invoking on the trailing edge of the timeout.
         * @returns {Function} Returns the new debounced function.
         * @example
         *
         * // Avoid costly calculations while the window size is in flux.
         * jQuery(window).on('resize', _.debounce(calculateLayout, 150));
         *
         * // Invoke `sendMail` when clicked, debouncing subsequent calls.
         * jQuery(element).on('click', _.debounce(sendMail, 300, {
         *   'leading': true,
         *   'trailing': false
         * }));
         *
         * // Ensure `batchLog` is invoked once after 1 second of debounced calls.
         * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 });
         * var source = new EventSource('/stream');
         * jQuery(source).on('message', debounced);
         *
         * // Cancel the trailing debounced invocation.
         * jQuery(window).on('popstate', debounced.cancel);
         */
        function debounce(func, wait, options) {
          var lastArgs,
            lastThis,
            maxWait,
            result,
            timerId,
            lastCallTime,
            lastInvokeTime = 0,
            leading = false,
            maxing = false,
            trailing = true

          if (typeof func != "function") {
            throw new TypeError(FUNC_ERROR_TEXT)
          }
          wait = toNumber(wait) || 0
          if (isObject(options)) {
            leading = !!options.leading
            maxing = "maxWait" in options
            maxWait = maxing
              ? nativeMax(toNumber(options.maxWait) || 0, wait)
              : maxWait
            trailing = "trailing" in options ? !!options.trailing : trailing
          }

          function invokeFunc(time) {
            var args = lastArgs,
              thisArg = lastThis

            lastArgs = lastThis = undefined$1
            lastInvokeTime = time
            result = func.apply(thisArg, args)
            return result
          }

          function leadingEdge(time) {
            // Reset any `maxWait` timer.
            lastInvokeTime = time
            // Start the timer for the trailing edge.
            timerId = setTimeout(timerExpired, wait)
            // Invoke the leading edge.
            return leading ? invokeFunc(time) : result
          }

          function remainingWait(time) {
            var timeSinceLastCall = time - lastCallTime,
              timeSinceLastInvoke = time - lastInvokeTime,
              timeWaiting = wait - timeSinceLastCall

            return maxing
              ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke)
              : timeWaiting
          }

          function shouldInvoke(time) {
            var timeSinceLastCall = time - lastCallTime,
              timeSinceLastInvoke = time - lastInvokeTime

            // Either this is the first call, activity has stopped and we're at the
            // trailing edge, the system time has gone backwards and we're treating
            // it as the trailing edge, or we've hit the `maxWait` limit.
            return (
              lastCallTime === undefined$1 ||
              timeSinceLastCall >= wait ||
              timeSinceLastCall < 0 ||
              (maxing && timeSinceLastInvoke >= maxWait)
            )
          }

          function timerExpired() {
            var time = now()
            if (shouldInvoke(time)) {
              return trailingEdge(time)
            }
            // Restart the timer.
            timerId = setTimeout(timerExpired, remainingWait(time))
          }

          function trailingEdge(time) {
            timerId = undefined$1

            // Only invoke if we have `lastArgs` which means `func` has been
            // debounced at least once.
            if (trailing && lastArgs) {
              return invokeFunc(time)
            }
            lastArgs = lastThis = undefined$1
            return result
          }

          function cancel() {
            if (timerId !== undefined$1) {
              clearTimeout(timerId)
            }
            lastInvokeTime = 0
            lastArgs = lastCallTime = lastThis = timerId = undefined$1
          }

          function flush() {
            return timerId === undefined$1 ? result : trailingEdge(now())
          }

          function debounced() {
            var time = now(),
              isInvoking = shouldInvoke(time)

            lastArgs = arguments
            lastThis = this
            lastCallTime = time

            if (isInvoking) {
              if (timerId === undefined$1) {
                return leadingEdge(lastCallTime)
              }
              if (maxing) {
                // Handle invocations in a tight loop.
                clearTimeout(timerId)
                timerId = setTimeout(timerExpired, wait)
                return invokeFunc(lastCallTime)
              }
            }
            if (timerId === undefined$1) {
              timerId = setTimeout(timerExpired, wait)
            }
            return result
          }
          debounced.cancel = cancel
          debounced.flush = flush
          return debounced
        }

        /**
         * Defers invoking the `func` until the current call stack has cleared. Any
         * additional arguments are provided to `func` when it's invoked.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Function
         * @param {Function} func The function to defer.
         * @param {...*} [args] The arguments to invoke `func` with.
         * @returns {number} Returns the timer id.
         * @example
         *
         * _.defer(function(text) {
         *   console.log(text);
         * }, 'deferred');
         * // => Logs 'deferred' after one millisecond.
         */
        var defer = baseRest(function(func, args) {
          return baseDelay(func, 1, args)
        })

        /**
         * Invokes `func` after `wait` milliseconds. Any additional arguments are
         * provided to `func` when it's invoked.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Function
         * @param {Function} func The function to delay.
         * @param {number} wait The number of milliseconds to delay invocation.
         * @param {...*} [args] The arguments to invoke `func` with.
         * @returns {number} Returns the timer id.
         * @example
         *
         * _.delay(function(text) {
         *   console.log(text);
         * }, 1000, 'later');
         * // => Logs 'later' after one second.
         */
        var delay = baseRest(function(func, wait, args) {
          return baseDelay(func, toNumber(wait) || 0, args)
        })

        /**
         * Creates a function that invokes `func` with arguments reversed.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Function
         * @param {Function} func The function to flip arguments for.
         * @returns {Function} Returns the new flipped function.
         * @example
         *
         * var flipped = _.flip(function() {
         *   return _.toArray(arguments);
         * });
         *
         * flipped('a', 'b', 'c', 'd');
         * // => ['d', 'c', 'b', 'a']
         */
        function flip(func) {
          return createWrap(func, WRAP_FLIP_FLAG)
        }

        /**
         * Creates a function that memoizes the result of `func`. If `resolver` is
         * provided, it determines the cache key for storing the result based on the
         * arguments provided to the memoized function. By default, the first argument
         * provided to the memoized function is used as the map cache key. The `func`
         * is invoked with the `this` binding of the memoized function.
         *
         * **Note:** The cache is exposed as the `cache` property on the memoized
         * function. Its creation may be customized by replacing the `_.memoize.Cache`
         * constructor with one whose instances implement the
         * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object)
         * method interface of `clear`, `delete`, `get`, `has`, and `set`.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Function
         * @param {Function} func The function to have its output memoized.
         * @param {Function} [resolver] The function to resolve the cache key.
         * @returns {Function} Returns the new memoized function.
         * @example
         *
         * var object = { 'a': 1, 'b': 2 };
         * var other = { 'c': 3, 'd': 4 };
         *
         * var values = _.memoize(_.values);
         * values(object);
         * // => [1, 2]
         *
         * values(other);
         * // => [3, 4]
         *
         * object.a = 2;
         * values(object);
         * // => [1, 2]
         *
         * // Modify the result cache.
         * values.cache.set(object, ['a', 'b']);
         * values(object);
         * // => ['a', 'b']
         *
         * // Replace `_.memoize.Cache`.
         * _.memoize.Cache = WeakMap;
         */
        function memoize(func, resolver) {
          if (
            typeof func != "function" ||
            (resolver != null && typeof resolver != "function")
          ) {
            throw new TypeError(FUNC_ERROR_TEXT)
          }
          var memoized = function() {
            var args = arguments,
              key = resolver ? resolver.apply(this, args) : args[0],
              cache = memoized.cache

            if (cache.has(key)) {
              return cache.get(key)
            }
            var result = func.apply(this, args)
            memoized.cache = cache.set(key, result) || cache
            return result
          }
          memoized.cache = new (memoize.Cache || MapCache)()
          return memoized
        }

        // Expose `MapCache`.
        memoize.Cache = MapCache

        /**
         * Creates a function that negates the result of the predicate `func`. The
         * `func` predicate is invoked with the `this` binding and arguments of the
         * created function.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Function
         * @param {Function} predicate The predicate to negate.
         * @returns {Function} Returns the new negated function.
         * @example
         *
         * function isEven(n) {
         *   return n % 2 == 0;
         * }
         *
         * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven));
         * // => [1, 3, 5]
         */
        function negate(predicate) {
          if (typeof predicate != "function") {
            throw new TypeError(FUNC_ERROR_TEXT)
          }
          return function() {
            var args = arguments
            switch (args.length) {
              case 0:
                return !predicate.call(this)
              case 1:
                return !predicate.call(this, args[0])
              case 2:
                return !predicate.call(this, args[0], args[1])
              case 3:
                return !predicate.call(this, args[0], args[1], args[2])
            }
            return !predicate.apply(this, args)
          }
        }

        /**
         * Creates a function that is restricted to invoking `func` once. Repeat calls
         * to the function return the value of the first invocation. The `func` is
         * invoked with the `this` binding and arguments of the created function.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Function
         * @param {Function} func The function to restrict.
         * @returns {Function} Returns the new restricted function.
         * @example
         *
         * var initialize = _.once(createApplication);
         * initialize();
         * initialize();
         * // => `createApplication` is invoked once
         */
        function once(func) {
          return before(2, func)
        }

        /**
         * Creates a function that invokes `func` with its arguments transformed.
         *
         * @static
         * @since 4.0.0
         * @memberOf _
         * @category Function
         * @param {Function} func The function to wrap.
         * @param {...(Function|Function[])} [transforms=[_.identity]]
         *  The argument transforms.
         * @returns {Function} Returns the new function.
         * @example
         *
         * function doubled(n) {
         *   return n * 2;
         * }
         *
         * function square(n) {
         *   return n * n;
         * }
         *
         * var func = _.overArgs(function(x, y) {
         *   return [x, y];
         * }, [square, doubled]);
         *
         * func(9, 3);
         * // => [81, 6]
         *
         * func(10, 5);
         * // => [100, 10]
         */
        var overArgs = castRest(function(func, transforms) {
          transforms =
            transforms.length == 1 && isArray(transforms[0])
              ? arrayMap(transforms[0], baseUnary(getIteratee()))
              : arrayMap(baseFlatten(transforms, 1), baseUnary(getIteratee()))

          var funcsLength = transforms.length
          return baseRest(function(args) {
            var index = -1,
              length = nativeMin(args.length, funcsLength)

            while (++index < length) {
              args[index] = transforms[index].call(this, args[index])
            }
            return apply(func, this, args)
          })
        })

        /**
         * Creates a function that invokes `func` with `partials` prepended to the
         * arguments it receives. This method is like `_.bind` except it does **not**
         * alter the `this` binding.
         *
         * The `_.partial.placeholder` value, which defaults to `_` in monolithic
         * builds, may be used as a placeholder for partially applied arguments.
         *
         * **Note:** This method doesn't set the "length" property of partially
         * applied functions.
         *
         * @static
         * @memberOf _
         * @since 0.2.0
         * @category Function
         * @param {Function} func The function to partially apply arguments to.
         * @param {...*} [partials] The arguments to be partially applied.
         * @returns {Function} Returns the new partially applied function.
         * @example
         *
         * function greet(greeting, name) {
         *   return greeting + ' ' + name;
         * }
         *
         * var sayHelloTo = _.partial(greet, 'hello');
         * sayHelloTo('fred');
         * // => 'hello fred'
         *
         * // Partially applied with placeholders.
         * var greetFred = _.partial(greet, _, 'fred');
         * greetFred('hi');
         * // => 'hi fred'
         */
        var partial = baseRest(function(func, partials) {
          var holders = replaceHolders(partials, getHolder(partial))
          return createWrap(
            func,
            WRAP_PARTIAL_FLAG,
            undefined$1,
            partials,
            holders
          )
        })

        /**
         * This method is like `_.partial` except that partially applied arguments
         * are appended to the arguments it receives.
         *
         * The `_.partialRight.placeholder` value, which defaults to `_` in monolithic
         * builds, may be used as a placeholder for partially applied arguments.
         *
         * **Note:** This method doesn't set the "length" property of partially
         * applied functions.
         *
         * @static
         * @memberOf _
         * @since 1.0.0
         * @category Function
         * @param {Function} func The function to partially apply arguments to.
         * @param {...*} [partials] The arguments to be partially applied.
         * @returns {Function} Returns the new partially applied function.
         * @example
         *
         * function greet(greeting, name) {
         *   return greeting + ' ' + name;
         * }
         *
         * var greetFred = _.partialRight(greet, 'fred');
         * greetFred('hi');
         * // => 'hi fred'
         *
         * // Partially applied with placeholders.
         * var sayHelloTo = _.partialRight(greet, 'hello', _);
         * sayHelloTo('fred');
         * // => 'hello fred'
         */
        var partialRight = baseRest(function(func, partials) {
          var holders = replaceHolders(partials, getHolder(partialRight))
          return createWrap(
            func,
            WRAP_PARTIAL_RIGHT_FLAG,
            undefined$1,
            partials,
            holders
          )
        })

        /**
         * Creates a function that invokes `func` with arguments arranged according
         * to the specified `indexes` where the argument value at the first index is
         * provided as the first argument, the argument value at the second index is
         * provided as the second argument, and so on.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Function
         * @param {Function} func The function to rearrange arguments for.
         * @param {...(number|number[])} indexes The arranged argument indexes.
         * @returns {Function} Returns the new function.
         * @example
         *
         * var rearged = _.rearg(function(a, b, c) {
         *   return [a, b, c];
         * }, [2, 0, 1]);
         *
         * rearged('b', 'c', 'a')
         * // => ['a', 'b', 'c']
         */
        var rearg = flatRest(function(func, indexes) {
          return createWrap(
            func,
            WRAP_REARG_FLAG,
            undefined$1,
            undefined$1,
            undefined$1,
            indexes
          )
        })

        /**
         * Creates a function that invokes `func` with the `this` binding of the
         * created function and arguments from `start` and beyond provided as
         * an array.
         *
         * **Note:** This method is based on the
         * [rest parameter](https://mdn.io/rest_parameters).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Function
         * @param {Function} func The function to apply a rest parameter to.
         * @param {number} [start=func.length-1] The start position of the rest parameter.
         * @returns {Function} Returns the new function.
         * @example
         *
         * var say = _.rest(function(what, names) {
         *   return what + ' ' + _.initial(names).join(', ') +
         *     (_.size(names) > 1 ? ', & ' : '') + _.last(names);
         * });
         *
         * say('hello', 'fred', 'barney', 'pebbles');
         * // => 'hello fred, barney, & pebbles'
         */
        function rest(func, start) {
          if (typeof func != "function") {
            throw new TypeError(FUNC_ERROR_TEXT)
          }
          start = start === undefined$1 ? start : toInteger(start)
          return baseRest(func, start)
        }

        /**
         * Creates a function that invokes `func` with the `this` binding of the
         * create function and an array of arguments much like
         * [`Function#apply`](http://www.ecma-international.org/ecma-262/7.0/#sec-function.prototype.apply).
         *
         * **Note:** This method is based on the
         * [spread operator](https://mdn.io/spread_operator).
         *
         * @static
         * @memberOf _
         * @since 3.2.0
         * @category Function
         * @param {Function} func The function to spread arguments over.
         * @param {number} [start=0] The start position of the spread.
         * @returns {Function} Returns the new function.
         * @example
         *
         * var say = _.spread(function(who, what) {
         *   return who + ' says ' + what;
         * });
         *
         * say(['fred', 'hello']);
         * // => 'fred says hello'
         *
         * var numbers = Promise.all([
         *   Promise.resolve(40),
         *   Promise.resolve(36)
         * ]);
         *
         * numbers.then(_.spread(function(x, y) {
         *   return x + y;
         * }));
         * // => a Promise of 76
         */
        function spread(func, start) {
          if (typeof func != "function") {
            throw new TypeError(FUNC_ERROR_TEXT)
          }
          start = start == null ? 0 : nativeMax(toInteger(start), 0)
          return baseRest(function(args) {
            var array = args[start],
              otherArgs = castSlice(args, 0, start)

            if (array) {
              arrayPush(otherArgs, array)
            }
            return apply(func, this, otherArgs)
          })
        }

        /**
         * Creates a throttled function that only invokes `func` at most once per
         * every `wait` milliseconds. The throttled function comes with a `cancel`
         * method to cancel delayed `func` invocations and a `flush` method to
         * immediately invoke them. Provide `options` to indicate whether `func`
         * should be invoked on the leading and/or trailing edge of the `wait`
         * timeout. The `func` is invoked with the last arguments provided to the
         * throttled function. Subsequent calls to the throttled function return the
         * result of the last `func` invocation.
         *
         * **Note:** If `leading` and `trailing` options are `true`, `func` is
         * invoked on the trailing edge of the timeout only if the throttled function
         * is invoked more than once during the `wait` timeout.
         *
         * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred
         * until to the next tick, similar to `setTimeout` with a timeout of `0`.
         *
         * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
         * for details over the differences between `_.throttle` and `_.debounce`.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Function
         * @param {Function} func The function to throttle.
         * @param {number} [wait=0] The number of milliseconds to throttle invocations to.
         * @param {Object} [options={}] The options object.
         * @param {boolean} [options.leading=true]
         *  Specify invoking on the leading edge of the timeout.
         * @param {boolean} [options.trailing=true]
         *  Specify invoking on the trailing edge of the timeout.
         * @returns {Function} Returns the new throttled function.
         * @example
         *
         * // Avoid excessively updating the position while scrolling.
         * jQuery(window).on('scroll', _.throttle(updatePosition, 100));
         *
         * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes.
         * var throttled = _.throttle(renewToken, 300000, { 'trailing': false });
         * jQuery(element).on('click', throttled);
         *
         * // Cancel the trailing throttled invocation.
         * jQuery(window).on('popstate', throttled.cancel);
         */
        function throttle(func, wait, options) {
          var leading = true,
            trailing = true

          if (typeof func != "function") {
            throw new TypeError(FUNC_ERROR_TEXT)
          }
          if (isObject(options)) {
            leading = "leading" in options ? !!options.leading : leading
            trailing = "trailing" in options ? !!options.trailing : trailing
          }
          return debounce(func, wait, {
            leading: leading,
            maxWait: wait,
            trailing: trailing,
          })
        }

        /**
         * Creates a function that accepts up to one argument, ignoring any
         * additional arguments.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Function
         * @param {Function} func The function to cap arguments for.
         * @returns {Function} Returns the new capped function.
         * @example
         *
         * _.map(['6', '8', '10'], _.unary(parseInt));
         * // => [6, 8, 10]
         */
        function unary(func) {
          return ary(func, 1)
        }

        /**
         * Creates a function that provides `value` to `wrapper` as its first
         * argument. Any additional arguments provided to the function are appended
         * to those provided to the `wrapper`. The wrapper is invoked with the `this`
         * binding of the created function.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Function
         * @param {*} value The value to wrap.
         * @param {Function} [wrapper=identity] The wrapper function.
         * @returns {Function} Returns the new function.
         * @example
         *
         * var p = _.wrap(_.escape, function(func, text) {
         *   return '<p>' + func(text) + '</p>';
         * });
         *
         * p('fred, barney, & pebbles');
         * // => '<p>fred, barney, &amp; pebbles</p>'
         */
        function wrap(value, wrapper) {
          return partial(castFunction(wrapper), value)
        }

        /*------------------------------------------------------------------------*/

        /**
         * Casts `value` as an array if it's not one.
         *
         * @static
         * @memberOf _
         * @since 4.4.0
         * @category Lang
         * @param {*} value The value to inspect.
         * @returns {Array} Returns the cast array.
         * @example
         *
         * _.castArray(1);
         * // => [1]
         *
         * _.castArray({ 'a': 1 });
         * // => [{ 'a': 1 }]
         *
         * _.castArray('abc');
         * // => ['abc']
         *
         * _.castArray(null);
         * // => [null]
         *
         * _.castArray(undefined);
         * // => [undefined]
         *
         * _.castArray();
         * // => []
         *
         * var array = [1, 2, 3];
         * console.log(_.castArray(array) === array);
         * // => true
         */
        function castArray() {
          if (!arguments.length) {
            return []
          }
          var value = arguments[0]
          return isArray(value) ? value : [value]
        }

        /**
         * Creates a shallow clone of `value`.
         *
         * **Note:** This method is loosely based on the
         * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm)
         * and supports cloning arrays, array buffers, booleans, date objects, maps,
         * numbers, `Object` objects, regexes, sets, strings, symbols, and typed
         * arrays. The own enumerable properties of `arguments` objects are cloned
         * as plain objects. An empty object is returned for uncloneable values such
         * as error objects, functions, DOM nodes, and WeakMaps.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Lang
         * @param {*} value The value to clone.
         * @returns {*} Returns the cloned value.
         * @see _.cloneDeep
         * @example
         *
         * var objects = [{ 'a': 1 }, { 'b': 2 }];
         *
         * var shallow = _.clone(objects);
         * console.log(shallow[0] === objects[0]);
         * // => true
         */
        function clone(value) {
          return baseClone(value, CLONE_SYMBOLS_FLAG)
        }

        /**
         * This method is like `_.clone` except that it accepts `customizer` which
         * is invoked to produce the cloned value. If `customizer` returns `undefined`,
         * cloning is handled by the method instead. The `customizer` is invoked with
         * up to four arguments; (value [, index|key, object, stack]).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {*} value The value to clone.
         * @param {Function} [customizer] The function to customize cloning.
         * @returns {*} Returns the cloned value.
         * @see _.cloneDeepWith
         * @example
         *
         * function customizer(value) {
         *   if (_.isElement(value)) {
         *     return value.cloneNode(false);
         *   }
         * }
         *
         * var el = _.cloneWith(document.body, customizer);
         *
         * console.log(el === document.body);
         * // => false
         * console.log(el.nodeName);
         * // => 'BODY'
         * console.log(el.childNodes.length);
         * // => 0
         */
        function cloneWith(value, customizer) {
          customizer =
            typeof customizer == "function" ? customizer : undefined$1
          return baseClone(value, CLONE_SYMBOLS_FLAG, customizer)
        }

        /**
         * This method is like `_.clone` except that it recursively clones `value`.
         *
         * @static
         * @memberOf _
         * @since 1.0.0
         * @category Lang
         * @param {*} value The value to recursively clone.
         * @returns {*} Returns the deep cloned value.
         * @see _.clone
         * @example
         *
         * var objects = [{ 'a': 1 }, { 'b': 2 }];
         *
         * var deep = _.cloneDeep(objects);
         * console.log(deep[0] === objects[0]);
         * // => false
         */
        function cloneDeep(value) {
          return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG)
        }

        /**
         * This method is like `_.cloneWith` except that it recursively clones `value`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {*} value The value to recursively clone.
         * @param {Function} [customizer] The function to customize cloning.
         * @returns {*} Returns the deep cloned value.
         * @see _.cloneWith
         * @example
         *
         * function customizer(value) {
         *   if (_.isElement(value)) {
         *     return value.cloneNode(true);
         *   }
         * }
         *
         * var el = _.cloneDeepWith(document.body, customizer);
         *
         * console.log(el === document.body);
         * // => false
         * console.log(el.nodeName);
         * // => 'BODY'
         * console.log(el.childNodes.length);
         * // => 20
         */
        function cloneDeepWith(value, customizer) {
          customizer =
            typeof customizer == "function" ? customizer : undefined$1
          return baseClone(
            value,
            CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG,
            customizer
          )
        }

        /**
         * Checks if `object` conforms to `source` by invoking the predicate
         * properties of `source` with the corresponding property values of `object`.
         *
         * **Note:** This method is equivalent to `_.conforms` when `source` is
         * partially applied.
         *
         * @static
         * @memberOf _
         * @since 4.14.0
         * @category Lang
         * @param {Object} object The object to inspect.
         * @param {Object} source The object of property predicates to conform to.
         * @returns {boolean} Returns `true` if `object` conforms, else `false`.
         * @example
         *
         * var object = { 'a': 1, 'b': 2 };
         *
         * _.conformsTo(object, { 'b': function(n) { return n > 1; } });
         * // => true
         *
         * _.conformsTo(object, { 'b': function(n) { return n > 2; } });
         * // => false
         */
        function conformsTo(object, source) {
          return source == null || baseConformsTo(object, source, keys(source))
        }

        /**
         * Performs a
         * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
         * comparison between two values to determine if they are equivalent.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {*} value The value to compare.
         * @param {*} other The other value to compare.
         * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
         * @example
         *
         * var object = { 'a': 1 };
         * var other = { 'a': 1 };
         *
         * _.eq(object, object);
         * // => true
         *
         * _.eq(object, other);
         * // => false
         *
         * _.eq('a', 'a');
         * // => true
         *
         * _.eq('a', Object('a'));
         * // => false
         *
         * _.eq(NaN, NaN);
         * // => true
         */
        function eq(value, other) {
          return value === other || (value !== value && other !== other)
        }

        /**
         * Checks if `value` is greater than `other`.
         *
         * @static
         * @memberOf _
         * @since 3.9.0
         * @category Lang
         * @param {*} value The value to compare.
         * @param {*} other The other value to compare.
         * @returns {boolean} Returns `true` if `value` is greater than `other`,
         *  else `false`.
         * @see _.lt
         * @example
         *
         * _.gt(3, 1);
         * // => true
         *
         * _.gt(3, 3);
         * // => false
         *
         * _.gt(1, 3);
         * // => false
         */
        var gt = createRelationalOperation(baseGt)

        /**
         * Checks if `value` is greater than or equal to `other`.
         *
         * @static
         * @memberOf _
         * @since 3.9.0
         * @category Lang
         * @param {*} value The value to compare.
         * @param {*} other The other value to compare.
         * @returns {boolean} Returns `true` if `value` is greater than or equal to
         *  `other`, else `false`.
         * @see _.lte
         * @example
         *
         * _.gte(3, 1);
         * // => true
         *
         * _.gte(3, 3);
         * // => true
         *
         * _.gte(1, 3);
         * // => false
         */
        var gte = createRelationalOperation(function(value, other) {
          return value >= other
        })

        /**
         * Checks if `value` is likely an `arguments` object.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is an `arguments` object,
         *  else `false`.
         * @example
         *
         * _.isArguments(function() { return arguments; }());
         * // => true
         *
         * _.isArguments([1, 2, 3]);
         * // => false
         */
        var isArguments = baseIsArguments(
          (function() {
            return arguments
          })()
        )
          ? baseIsArguments
          : function(value) {
              return (
                isObjectLike(value) &&
                hasOwnProperty.call(value, "callee") &&
                !propertyIsEnumerable.call(value, "callee")
              )
            }

        /**
         * Checks if `value` is classified as an `Array` object.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is an array, else `false`.
         * @example
         *
         * _.isArray([1, 2, 3]);
         * // => true
         *
         * _.isArray(document.body.children);
         * // => false
         *
         * _.isArray('abc');
         * // => false
         *
         * _.isArray(_.noop);
         * // => false
         */
        var isArray = Array.isArray

        /**
         * Checks if `value` is classified as an `ArrayBuffer` object.
         *
         * @static
         * @memberOf _
         * @since 4.3.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.
         * @example
         *
         * _.isArrayBuffer(new ArrayBuffer(2));
         * // => true
         *
         * _.isArrayBuffer(new Array(2));
         * // => false
         */
        var isArrayBuffer = nodeIsArrayBuffer
          ? baseUnary(nodeIsArrayBuffer)
          : baseIsArrayBuffer

        /**
         * Checks if `value` is array-like. A value is considered array-like if it's
         * not a function and has a `value.length` that's an integer greater than or
         * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
         * @example
         *
         * _.isArrayLike([1, 2, 3]);
         * // => true
         *
         * _.isArrayLike(document.body.children);
         * // => true
         *
         * _.isArrayLike('abc');
         * // => true
         *
         * _.isArrayLike(_.noop);
         * // => false
         */
        function isArrayLike(value) {
          return value != null && isLength(value.length) && !isFunction(value)
        }

        /**
         * This method is like `_.isArrayLike` except that it also checks if `value`
         * is an object.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is an array-like object,
         *  else `false`.
         * @example
         *
         * _.isArrayLikeObject([1, 2, 3]);
         * // => true
         *
         * _.isArrayLikeObject(document.body.children);
         * // => true
         *
         * _.isArrayLikeObject('abc');
         * // => false
         *
         * _.isArrayLikeObject(_.noop);
         * // => false
         */
        function isArrayLikeObject(value) {
          return isObjectLike(value) && isArrayLike(value)
        }

        /**
         * Checks if `value` is classified as a boolean primitive or object.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a boolean, else `false`.
         * @example
         *
         * _.isBoolean(false);
         * // => true
         *
         * _.isBoolean(null);
         * // => false
         */
        function isBoolean(value) {
          return (
            value === true ||
            value === false ||
            (isObjectLike(value) && baseGetTag(value) == boolTag)
          )
        }

        /**
         * Checks if `value` is a buffer.
         *
         * @static
         * @memberOf _
         * @since 4.3.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.
         * @example
         *
         * _.isBuffer(new Buffer(2));
         * // => true
         *
         * _.isBuffer(new Uint8Array(2));
         * // => false
         */
        var isBuffer = nativeIsBuffer || stubFalse

        /**
         * Checks if `value` is classified as a `Date` object.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a date object, else `false`.
         * @example
         *
         * _.isDate(new Date);
         * // => true
         *
         * _.isDate('Mon April 23 2012');
         * // => false
         */
        var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate

        /**
         * Checks if `value` is likely a DOM element.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`.
         * @example
         *
         * _.isElement(document.body);
         * // => true
         *
         * _.isElement('<body>');
         * // => false
         */
        function isElement(value) {
          return (
            isObjectLike(value) && value.nodeType === 1 && !isPlainObject(value)
          )
        }

        /**
         * Checks if `value` is an empty object, collection, map, or set.
         *
         * Objects are considered empty if they have no own enumerable string keyed
         * properties.
         *
         * Array-like values such as `arguments` objects, arrays, buffers, strings, or
         * jQuery-like collections are considered empty if they have a `length` of `0`.
         * Similarly, maps and sets are considered empty if they have a `size` of `0`.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is empty, else `false`.
         * @example
         *
         * _.isEmpty(null);
         * // => true
         *
         * _.isEmpty(true);
         * // => true
         *
         * _.isEmpty(1);
         * // => true
         *
         * _.isEmpty([1, 2, 3]);
         * // => false
         *
         * _.isEmpty({ 'a': 1 });
         * // => false
         */
        function isEmpty(value) {
          if (value == null) {
            return true
          }
          if (
            isArrayLike(value) &&
            (isArray(value) ||
              typeof value == "string" ||
              typeof value.splice == "function" ||
              isBuffer(value) ||
              isTypedArray(value) ||
              isArguments(value))
          ) {
            return !value.length
          }
          var tag = getTag(value)
          if (tag == mapTag || tag == setTag) {
            return !value.size
          }
          if (isPrototype(value)) {
            return !baseKeys(value).length
          }
          for (var key in value) {
            if (hasOwnProperty.call(value, key)) {
              return false
            }
          }
          return true
        }

        /**
         * Performs a deep comparison between two values to determine if they are
         * equivalent.
         *
         * **Note:** This method supports comparing arrays, array buffers, booleans,
         * date objects, error objects, maps, numbers, `Object` objects, regexes,
         * sets, strings, symbols, and typed arrays. `Object` objects are compared
         * by their own, not inherited, enumerable properties. Functions and DOM
         * nodes are compared by strict equality, i.e. `===`.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Lang
         * @param {*} value The value to compare.
         * @param {*} other The other value to compare.
         * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
         * @example
         *
         * var object = { 'a': 1 };
         * var other = { 'a': 1 };
         *
         * _.isEqual(object, other);
         * // => true
         *
         * object === other;
         * // => false
         */
        function isEqual(value, other) {
          return baseIsEqual(value, other)
        }

        /**
         * This method is like `_.isEqual` except that it accepts `customizer` which
         * is invoked to compare values. If `customizer` returns `undefined`, comparisons
         * are handled by the method instead. The `customizer` is invoked with up to
         * six arguments: (objValue, othValue [, index|key, object, other, stack]).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {*} value The value to compare.
         * @param {*} other The other value to compare.
         * @param {Function} [customizer] The function to customize comparisons.
         * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
         * @example
         *
         * function isGreeting(value) {
         *   return /^h(?:i|ello)$/.test(value);
         * }
         *
         * function customizer(objValue, othValue) {
         *   if (isGreeting(objValue) && isGreeting(othValue)) {
         *     return true;
         *   }
         * }
         *
         * var array = ['hello', 'goodbye'];
         * var other = ['hi', 'goodbye'];
         *
         * _.isEqualWith(array, other, customizer);
         * // => true
         */
        function isEqualWith(value, other, customizer) {
          customizer =
            typeof customizer == "function" ? customizer : undefined$1
          var result = customizer ? customizer(value, other) : undefined$1
          return result === undefined$1
            ? baseIsEqual(value, other, undefined$1, customizer)
            : !!result
        }

        /**
         * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`,
         * `SyntaxError`, `TypeError`, or `URIError` object.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is an error object, else `false`.
         * @example
         *
         * _.isError(new Error);
         * // => true
         *
         * _.isError(Error);
         * // => false
         */
        function isError(value) {
          if (!isObjectLike(value)) {
            return false
          }
          var tag = baseGetTag(value)
          return (
            tag == errorTag ||
            tag == domExcTag ||
            (typeof value.message == "string" &&
              typeof value.name == "string" &&
              !isPlainObject(value))
          )
        }

        /**
         * Checks if `value` is a finite primitive number.
         *
         * **Note:** This method is based on
         * [`Number.isFinite`](https://mdn.io/Number/isFinite).
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a finite number, else `false`.
         * @example
         *
         * _.isFinite(3);
         * // => true
         *
         * _.isFinite(Number.MIN_VALUE);
         * // => true
         *
         * _.isFinite(Infinity);
         * // => false
         *
         * _.isFinite('3');
         * // => false
         */
        function isFinite(value) {
          return typeof value == "number" && nativeIsFinite(value)
        }

        /**
         * Checks if `value` is classified as a `Function` object.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a function, else `false`.
         * @example
         *
         * _.isFunction(_);
         * // => true
         *
         * _.isFunction(/abc/);
         * // => false
         */
        function isFunction(value) {
          if (!isObject(value)) {
            return false
          }
          // The use of `Object#toString` avoids issues with the `typeof` operator
          // in Safari 9 which returns 'object' for typed arrays and other constructors.
          var tag = baseGetTag(value)
          return (
            tag == funcTag ||
            tag == genTag ||
            tag == asyncTag ||
            tag == proxyTag
          )
        }

        /**
         * Checks if `value` is an integer.
         *
         * **Note:** This method is based on
         * [`Number.isInteger`](https://mdn.io/Number/isInteger).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is an integer, else `false`.
         * @example
         *
         * _.isInteger(3);
         * // => true
         *
         * _.isInteger(Number.MIN_VALUE);
         * // => false
         *
         * _.isInteger(Infinity);
         * // => false
         *
         * _.isInteger('3');
         * // => false
         */
        function isInteger(value) {
          return typeof value == "number" && value == toInteger(value)
        }

        /**
         * Checks if `value` is a valid array-like length.
         *
         * **Note:** This method is loosely based on
         * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
         * @example
         *
         * _.isLength(3);
         * // => true
         *
         * _.isLength(Number.MIN_VALUE);
         * // => false
         *
         * _.isLength(Infinity);
         * // => false
         *
         * _.isLength('3');
         * // => false
         */
        function isLength(value) {
          return (
            typeof value == "number" &&
            value > -1 &&
            value % 1 == 0 &&
            value <= MAX_SAFE_INTEGER
          )
        }

        /**
         * Checks if `value` is the
         * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)
         * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is an object, else `false`.
         * @example
         *
         * _.isObject({});
         * // => true
         *
         * _.isObject([1, 2, 3]);
         * // => true
         *
         * _.isObject(_.noop);
         * // => true
         *
         * _.isObject(null);
         * // => false
         */
        function isObject(value) {
          var type = typeof value
          return value != null && (type == "object" || type == "function")
        }

        /**
         * Checks if `value` is object-like. A value is object-like if it's not `null`
         * and has a `typeof` result of "object".
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
         * @example
         *
         * _.isObjectLike({});
         * // => true
         *
         * _.isObjectLike([1, 2, 3]);
         * // => true
         *
         * _.isObjectLike(_.noop);
         * // => false
         *
         * _.isObjectLike(null);
         * // => false
         */
        function isObjectLike(value) {
          return value != null && typeof value == "object"
        }

        /**
         * Checks if `value` is classified as a `Map` object.
         *
         * @static
         * @memberOf _
         * @since 4.3.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a map, else `false`.
         * @example
         *
         * _.isMap(new Map);
         * // => true
         *
         * _.isMap(new WeakMap);
         * // => false
         */
        var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap

        /**
         * Performs a partial deep comparison between `object` and `source` to
         * determine if `object` contains equivalent property values.
         *
         * **Note:** This method is equivalent to `_.matches` when `source` is
         * partially applied.
         *
         * Partial comparisons will match empty array and empty object `source`
         * values against any array or object value, respectively. See `_.isEqual`
         * for a list of supported value comparisons.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Lang
         * @param {Object} object The object to inspect.
         * @param {Object} source The object of property values to match.
         * @returns {boolean} Returns `true` if `object` is a match, else `false`.
         * @example
         *
         * var object = { 'a': 1, 'b': 2 };
         *
         * _.isMatch(object, { 'b': 2 });
         * // => true
         *
         * _.isMatch(object, { 'b': 1 });
         * // => false
         */
        function isMatch(object, source) {
          return (
            object === source ||
            baseIsMatch(object, source, getMatchData(source))
          )
        }

        /**
         * This method is like `_.isMatch` except that it accepts `customizer` which
         * is invoked to compare values. If `customizer` returns `undefined`, comparisons
         * are handled by the method instead. The `customizer` is invoked with five
         * arguments: (objValue, srcValue, index|key, object, source).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {Object} object The object to inspect.
         * @param {Object} source The object of property values to match.
         * @param {Function} [customizer] The function to customize comparisons.
         * @returns {boolean} Returns `true` if `object` is a match, else `false`.
         * @example
         *
         * function isGreeting(value) {
         *   return /^h(?:i|ello)$/.test(value);
         * }
         *
         * function customizer(objValue, srcValue) {
         *   if (isGreeting(objValue) && isGreeting(srcValue)) {
         *     return true;
         *   }
         * }
         *
         * var object = { 'greeting': 'hello' };
         * var source = { 'greeting': 'hi' };
         *
         * _.isMatchWith(object, source, customizer);
         * // => true
         */
        function isMatchWith(object, source, customizer) {
          customizer =
            typeof customizer == "function" ? customizer : undefined$1
          return baseIsMatch(object, source, getMatchData(source), customizer)
        }

        /**
         * Checks if `value` is `NaN`.
         *
         * **Note:** This method is based on
         * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as
         * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for
         * `undefined` and other non-number values.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.
         * @example
         *
         * _.isNaN(NaN);
         * // => true
         *
         * _.isNaN(new Number(NaN));
         * // => true
         *
         * isNaN(undefined);
         * // => true
         *
         * _.isNaN(undefined);
         * // => false
         */
        function isNaN(value) {
          // An `NaN` primitive is the only value that is not equal to itself.
          // Perform the `toStringTag` check first to avoid errors with some
          // ActiveX objects in IE.
          return isNumber(value) && value != +value
        }

        /**
         * Checks if `value` is a pristine native function.
         *
         * **Note:** This method can't reliably detect native functions in the presence
         * of the core-js package because core-js circumvents this kind of detection.
         * Despite multiple requests, the core-js maintainer has made it clear: any
         * attempt to fix the detection will be obstructed. As a result, we're left
         * with little choice but to throw an error. Unfortunately, this also affects
         * packages, like [babel-polyfill](https://www.npmjs.com/package/babel-polyfill),
         * which rely on core-js.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a native function,
         *  else `false`.
         * @example
         *
         * _.isNative(Array.prototype.push);
         * // => true
         *
         * _.isNative(_);
         * // => false
         */
        function isNative(value) {
          if (isMaskable(value)) {
            throw new Error(CORE_ERROR_TEXT)
          }
          return baseIsNative(value)
        }

        /**
         * Checks if `value` is `null`.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is `null`, else `false`.
         * @example
         *
         * _.isNull(null);
         * // => true
         *
         * _.isNull(void 0);
         * // => false
         */
        function isNull(value) {
          return value === null
        }

        /**
         * Checks if `value` is `null` or `undefined`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is nullish, else `false`.
         * @example
         *
         * _.isNil(null);
         * // => true
         *
         * _.isNil(void 0);
         * // => true
         *
         * _.isNil(NaN);
         * // => false
         */
        function isNil(value) {
          return value == null
        }

        /**
         * Checks if `value` is classified as a `Number` primitive or object.
         *
         * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are
         * classified as numbers, use the `_.isFinite` method.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a number, else `false`.
         * @example
         *
         * _.isNumber(3);
         * // => true
         *
         * _.isNumber(Number.MIN_VALUE);
         * // => true
         *
         * _.isNumber(Infinity);
         * // => true
         *
         * _.isNumber('3');
         * // => false
         */
        function isNumber(value) {
          return (
            typeof value == "number" ||
            (isObjectLike(value) && baseGetTag(value) == numberTag)
          )
        }

        /**
         * Checks if `value` is a plain object, that is, an object created by the
         * `Object` constructor or one with a `[[Prototype]]` of `null`.
         *
         * @static
         * @memberOf _
         * @since 0.8.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
         * @example
         *
         * function Foo() {
         *   this.a = 1;
         * }
         *
         * _.isPlainObject(new Foo);
         * // => false
         *
         * _.isPlainObject([1, 2, 3]);
         * // => false
         *
         * _.isPlainObject({ 'x': 0, 'y': 0 });
         * // => true
         *
         * _.isPlainObject(Object.create(null));
         * // => true
         */
        function isPlainObject(value) {
          if (!isObjectLike(value) || baseGetTag(value) != objectTag) {
            return false
          }
          var proto = getPrototype(value)
          if (proto === null) {
            return true
          }
          var Ctor =
            hasOwnProperty.call(proto, "constructor") && proto.constructor
          return (
            typeof Ctor == "function" &&
            Ctor instanceof Ctor &&
            funcToString.call(Ctor) == objectCtorString
          )
        }

        /**
         * Checks if `value` is classified as a `RegExp` object.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.
         * @example
         *
         * _.isRegExp(/abc/);
         * // => true
         *
         * _.isRegExp('/abc/');
         * // => false
         */
        var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp

        /**
         * Checks if `value` is a safe integer. An integer is safe if it's an IEEE-754
         * double precision number which isn't the result of a rounded unsafe integer.
         *
         * **Note:** This method is based on
         * [`Number.isSafeInteger`](https://mdn.io/Number/isSafeInteger).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a safe integer, else `false`.
         * @example
         *
         * _.isSafeInteger(3);
         * // => true
         *
         * _.isSafeInteger(Number.MIN_VALUE);
         * // => false
         *
         * _.isSafeInteger(Infinity);
         * // => false
         *
         * _.isSafeInteger('3');
         * // => false
         */
        function isSafeInteger(value) {
          return (
            isInteger(value) &&
            value >= -MAX_SAFE_INTEGER &&
            value <= MAX_SAFE_INTEGER
          )
        }

        /**
         * Checks if `value` is classified as a `Set` object.
         *
         * @static
         * @memberOf _
         * @since 4.3.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a set, else `false`.
         * @example
         *
         * _.isSet(new Set);
         * // => true
         *
         * _.isSet(new WeakSet);
         * // => false
         */
        var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet

        /**
         * Checks if `value` is classified as a `String` primitive or object.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a string, else `false`.
         * @example
         *
         * _.isString('abc');
         * // => true
         *
         * _.isString(1);
         * // => false
         */
        function isString(value) {
          return (
            typeof value == "string" ||
            (!isArray(value) &&
              isObjectLike(value) &&
              baseGetTag(value) == stringTag)
          )
        }

        /**
         * Checks if `value` is classified as a `Symbol` primitive or object.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.
         * @example
         *
         * _.isSymbol(Symbol.iterator);
         * // => true
         *
         * _.isSymbol('abc');
         * // => false
         */
        function isSymbol(value) {
          return (
            typeof value == "symbol" ||
            (isObjectLike(value) && baseGetTag(value) == symbolTag)
          )
        }

        /**
         * Checks if `value` is classified as a typed array.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
         * @example
         *
         * _.isTypedArray(new Uint8Array);
         * // => true
         *
         * _.isTypedArray([]);
         * // => false
         */
        var isTypedArray = nodeIsTypedArray
          ? baseUnary(nodeIsTypedArray)
          : baseIsTypedArray

        /**
         * Checks if `value` is `undefined`.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`.
         * @example
         *
         * _.isUndefined(void 0);
         * // => true
         *
         * _.isUndefined(null);
         * // => false
         */
        function isUndefined(value) {
          return value === undefined$1
        }

        /**
         * Checks if `value` is classified as a `WeakMap` object.
         *
         * @static
         * @memberOf _
         * @since 4.3.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a weak map, else `false`.
         * @example
         *
         * _.isWeakMap(new WeakMap);
         * // => true
         *
         * _.isWeakMap(new Map);
         * // => false
         */
        function isWeakMap(value) {
          return isObjectLike(value) && getTag(value) == weakMapTag
        }

        /**
         * Checks if `value` is classified as a `WeakSet` object.
         *
         * @static
         * @memberOf _
         * @since 4.3.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a weak set, else `false`.
         * @example
         *
         * _.isWeakSet(new WeakSet);
         * // => true
         *
         * _.isWeakSet(new Set);
         * // => false
         */
        function isWeakSet(value) {
          return isObjectLike(value) && baseGetTag(value) == weakSetTag
        }

        /**
         * Checks if `value` is less than `other`.
         *
         * @static
         * @memberOf _
         * @since 3.9.0
         * @category Lang
         * @param {*} value The value to compare.
         * @param {*} other The other value to compare.
         * @returns {boolean} Returns `true` if `value` is less than `other`,
         *  else `false`.
         * @see _.gt
         * @example
         *
         * _.lt(1, 3);
         * // => true
         *
         * _.lt(3, 3);
         * // => false
         *
         * _.lt(3, 1);
         * // => false
         */
        var lt = createRelationalOperation(baseLt)

        /**
         * Checks if `value` is less than or equal to `other`.
         *
         * @static
         * @memberOf _
         * @since 3.9.0
         * @category Lang
         * @param {*} value The value to compare.
         * @param {*} other The other value to compare.
         * @returns {boolean} Returns `true` if `value` is less than or equal to
         *  `other`, else `false`.
         * @see _.gte
         * @example
         *
         * _.lte(1, 3);
         * // => true
         *
         * _.lte(3, 3);
         * // => true
         *
         * _.lte(3, 1);
         * // => false
         */
        var lte = createRelationalOperation(function(value, other) {
          return value <= other
        })

        /**
         * Converts `value` to an array.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Lang
         * @param {*} value The value to convert.
         * @returns {Array} Returns the converted array.
         * @example
         *
         * _.toArray({ 'a': 1, 'b': 2 });
         * // => [1, 2]
         *
         * _.toArray('abc');
         * // => ['a', 'b', 'c']
         *
         * _.toArray(1);
         * // => []
         *
         * _.toArray(null);
         * // => []
         */
        function toArray(value) {
          if (!value) {
            return []
          }
          if (isArrayLike(value)) {
            return isString(value) ? stringToArray(value) : copyArray(value)
          }
          if (symIterator && value[symIterator]) {
            return iteratorToArray(value[symIterator]())
          }
          var tag = getTag(value),
            func =
              tag == mapTag ? mapToArray : tag == setTag ? setToArray : values

          return func(value)
        }

        /**
         * Converts `value` to a finite number.
         *
         * @static
         * @memberOf _
         * @since 4.12.0
         * @category Lang
         * @param {*} value The value to convert.
         * @returns {number} Returns the converted number.
         * @example
         *
         * _.toFinite(3.2);
         * // => 3.2
         *
         * _.toFinite(Number.MIN_VALUE);
         * // => 5e-324
         *
         * _.toFinite(Infinity);
         * // => 1.7976931348623157e+308
         *
         * _.toFinite('3.2');
         * // => 3.2
         */
        function toFinite(value) {
          if (!value) {
            return value === 0 ? value : 0
          }
          value = toNumber(value)
          if (value === INFINITY || value === -INFINITY) {
            var sign = value < 0 ? -1 : 1
            return sign * MAX_INTEGER
          }
          return value === value ? value : 0
        }

        /**
         * Converts `value` to an integer.
         *
         * **Note:** This method is loosely based on
         * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {*} value The value to convert.
         * @returns {number} Returns the converted integer.
         * @example
         *
         * _.toInteger(3.2);
         * // => 3
         *
         * _.toInteger(Number.MIN_VALUE);
         * // => 0
         *
         * _.toInteger(Infinity);
         * // => 1.7976931348623157e+308
         *
         * _.toInteger('3.2');
         * // => 3
         */
        function toInteger(value) {
          var result = toFinite(value),
            remainder = result % 1

          return result === result
            ? remainder
              ? result - remainder
              : result
            : 0
        }

        /**
         * Converts `value` to an integer suitable for use as the length of an
         * array-like object.
         *
         * **Note:** This method is based on
         * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {*} value The value to convert.
         * @returns {number} Returns the converted integer.
         * @example
         *
         * _.toLength(3.2);
         * // => 3
         *
         * _.toLength(Number.MIN_VALUE);
         * // => 0
         *
         * _.toLength(Infinity);
         * // => 4294967295
         *
         * _.toLength('3.2');
         * // => 3
         */
        function toLength(value) {
          return value ? baseClamp(toInteger(value), 0, MAX_ARRAY_LENGTH) : 0
        }

        /**
         * Converts `value` to a number.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {*} value The value to process.
         * @returns {number} Returns the number.
         * @example
         *
         * _.toNumber(3.2);
         * // => 3.2
         *
         * _.toNumber(Number.MIN_VALUE);
         * // => 5e-324
         *
         * _.toNumber(Infinity);
         * // => Infinity
         *
         * _.toNumber('3.2');
         * // => 3.2
         */
        function toNumber(value) {
          if (typeof value == "number") {
            return value
          }
          if (isSymbol(value)) {
            return NAN
          }
          if (isObject(value)) {
            var other =
              typeof value.valueOf == "function" ? value.valueOf() : value
            value = isObject(other) ? other + "" : other
          }
          if (typeof value != "string") {
            return value === 0 ? value : +value
          }
          value = value.replace(reTrim, "")
          var isBinary = reIsBinary.test(value)
          return isBinary || reIsOctal.test(value)
            ? freeParseInt(value.slice(2), isBinary ? 2 : 8)
            : reIsBadHex.test(value)
            ? NAN
            : +value
        }

        /**
         * Converts `value` to a plain object flattening inherited enumerable string
         * keyed properties of `value` to own properties of the plain object.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Lang
         * @param {*} value The value to convert.
         * @returns {Object} Returns the converted plain object.
         * @example
         *
         * function Foo() {
         *   this.b = 2;
         * }
         *
         * Foo.prototype.c = 3;
         *
         * _.assign({ 'a': 1 }, new Foo);
         * // => { 'a': 1, 'b': 2 }
         *
         * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));
         * // => { 'a': 1, 'b': 2, 'c': 3 }
         */
        function toPlainObject(value) {
          return copyObject(value, keysIn(value))
        }

        /**
         * Converts `value` to a safe integer. A safe integer can be compared and
         * represented correctly.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {*} value The value to convert.
         * @returns {number} Returns the converted integer.
         * @example
         *
         * _.toSafeInteger(3.2);
         * // => 3
         *
         * _.toSafeInteger(Number.MIN_VALUE);
         * // => 0
         *
         * _.toSafeInteger(Infinity);
         * // => 9007199254740991
         *
         * _.toSafeInteger('3.2');
         * // => 3
         */
        function toSafeInteger(value) {
          return value
            ? baseClamp(toInteger(value), -MAX_SAFE_INTEGER, MAX_SAFE_INTEGER)
            : value === 0
            ? value
            : 0
        }

        /**
         * Converts `value` to a string. An empty string is returned for `null`
         * and `undefined` values. The sign of `-0` is preserved.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {*} value The value to convert.
         * @returns {string} Returns the converted string.
         * @example
         *
         * _.toString(null);
         * // => ''
         *
         * _.toString(-0);
         * // => '-0'
         *
         * _.toString([1, 2, 3]);
         * // => '1,2,3'
         */
        function toString(value) {
          return value == null ? "" : baseToString(value)
        }

        /*------------------------------------------------------------------------*/

        /**
         * Assigns own enumerable string keyed properties of source objects to the
         * destination object. Source objects are applied from left to right.
         * Subsequent sources overwrite property assignments of previous sources.
         *
         * **Note:** This method mutates `object` and is loosely based on
         * [`Object.assign`](https://mdn.io/Object/assign).
         *
         * @static
         * @memberOf _
         * @since 0.10.0
         * @category Object
         * @param {Object} object The destination object.
         * @param {...Object} [sources] The source objects.
         * @returns {Object} Returns `object`.
         * @see _.assignIn
         * @example
         *
         * function Foo() {
         *   this.a = 1;
         * }
         *
         * function Bar() {
         *   this.c = 3;
         * }
         *
         * Foo.prototype.b = 2;
         * Bar.prototype.d = 4;
         *
         * _.assign({ 'a': 0 }, new Foo, new Bar);
         * // => { 'a': 1, 'c': 3 }
         */
        var assign = createAssigner(function(object, source) {
          if (isPrototype(source) || isArrayLike(source)) {
            copyObject(source, keys(source), object)
            return
          }
          for (var key in source) {
            if (hasOwnProperty.call(source, key)) {
              assignValue(object, key, source[key])
            }
          }
        })

        /**
         * This method is like `_.assign` except that it iterates over own and
         * inherited source properties.
         *
         * **Note:** This method mutates `object`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @alias extend
         * @category Object
         * @param {Object} object The destination object.
         * @param {...Object} [sources] The source objects.
         * @returns {Object} Returns `object`.
         * @see _.assign
         * @example
         *
         * function Foo() {
         *   this.a = 1;
         * }
         *
         * function Bar() {
         *   this.c = 3;
         * }
         *
         * Foo.prototype.b = 2;
         * Bar.prototype.d = 4;
         *
         * _.assignIn({ 'a': 0 }, new Foo, new Bar);
         * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 }
         */
        var assignIn = createAssigner(function(object, source) {
          copyObject(source, keysIn(source), object)
        })

        /**
         * This method is like `_.assignIn` except that it accepts `customizer`
         * which is invoked to produce the assigned values. If `customizer` returns
         * `undefined`, assignment is handled by the method instead. The `customizer`
         * is invoked with five arguments: (objValue, srcValue, key, object, source).
         *
         * **Note:** This method mutates `object`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @alias extendWith
         * @category Object
         * @param {Object} object The destination object.
         * @param {...Object} sources The source objects.
         * @param {Function} [customizer] The function to customize assigned values.
         * @returns {Object} Returns `object`.
         * @see _.assignWith
         * @example
         *
         * function customizer(objValue, srcValue) {
         *   return _.isUndefined(objValue) ? srcValue : objValue;
         * }
         *
         * var defaults = _.partialRight(_.assignInWith, customizer);
         *
         * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
         * // => { 'a': 1, 'b': 2 }
         */
        var assignInWith = createAssigner(function(
          object,
          source,
          srcIndex,
          customizer
        ) {
          copyObject(source, keysIn(source), object, customizer)
        })

        /**
         * This method is like `_.assign` except that it accepts `customizer`
         * which is invoked to produce the assigned values. If `customizer` returns
         * `undefined`, assignment is handled by the method instead. The `customizer`
         * is invoked with five arguments: (objValue, srcValue, key, object, source).
         *
         * **Note:** This method mutates `object`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Object
         * @param {Object} object The destination object.
         * @param {...Object} sources The source objects.
         * @param {Function} [customizer] The function to customize assigned values.
         * @returns {Object} Returns `object`.
         * @see _.assignInWith
         * @example
         *
         * function customizer(objValue, srcValue) {
         *   return _.isUndefined(objValue) ? srcValue : objValue;
         * }
         *
         * var defaults = _.partialRight(_.assignWith, customizer);
         *
         * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
         * // => { 'a': 1, 'b': 2 }
         */
        var assignWith = createAssigner(function(
          object,
          source,
          srcIndex,
          customizer
        ) {
          copyObject(source, keys(source), object, customizer)
        })

        /**
         * Creates an array of values corresponding to `paths` of `object`.
         *
         * @static
         * @memberOf _
         * @since 1.0.0
         * @category Object
         * @param {Object} object The object to iterate over.
         * @param {...(string|string[])} [paths] The property paths to pick.
         * @returns {Array} Returns the picked values.
         * @example
         *
         * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };
         *
         * _.at(object, ['a[0].b.c', 'a[1]']);
         * // => [3, 4]
         */
        var at = flatRest(baseAt)

        /**
         * Creates an object that inherits from the `prototype` object. If a
         * `properties` object is given, its own enumerable string keyed properties
         * are assigned to the created object.
         *
         * @static
         * @memberOf _
         * @since 2.3.0
         * @category Object
         * @param {Object} prototype The object to inherit from.
         * @param {Object} [properties] The properties to assign to the object.
         * @returns {Object} Returns the new object.
         * @example
         *
         * function Shape() {
         *   this.x = 0;
         *   this.y = 0;
         * }
         *
         * function Circle() {
         *   Shape.call(this);
         * }
         *
         * Circle.prototype = _.create(Shape.prototype, {
         *   'constructor': Circle
         * });
         *
         * var circle = new Circle;
         * circle instanceof Circle;
         * // => true
         *
         * circle instanceof Shape;
         * // => true
         */
        function create(prototype, properties) {
          var result = baseCreate(prototype)
          return properties == null ? result : baseAssign(result, properties)
        }

        /**
         * Assigns own and inherited enumerable string keyed properties of source
         * objects to the destination object for all destination properties that
         * resolve to `undefined`. Source objects are applied from left to right.
         * Once a property is set, additional values of the same property are ignored.
         *
         * **Note:** This method mutates `object`.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Object
         * @param {Object} object The destination object.
         * @param {...Object} [sources] The source objects.
         * @returns {Object} Returns `object`.
         * @see _.defaultsDeep
         * @example
         *
         * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
         * // => { 'a': 1, 'b': 2 }
         */
        var defaults = baseRest(function(object, sources) {
          object = Object(object)

          var index = -1
          var length = sources.length
          var guard = length > 2 ? sources[2] : undefined$1

          if (guard && isIterateeCall(sources[0], sources[1], guard)) {
            length = 1
          }

          while (++index < length) {
            var source = sources[index]
            var props = keysIn(source)
            var propsIndex = -1
            var propsLength = props.length

            while (++propsIndex < propsLength) {
              var key = props[propsIndex]
              var value = object[key]

              if (
                value === undefined$1 ||
                (eq(value, objectProto[key]) &&
                  !hasOwnProperty.call(object, key))
              ) {
                object[key] = source[key]
              }
            }
          }

          return object
        })

        /**
         * This method is like `_.defaults` except that it recursively assigns
         * default properties.
         *
         * **Note:** This method mutates `object`.
         *
         * @static
         * @memberOf _
         * @since 3.10.0
         * @category Object
         * @param {Object} object The destination object.
         * @param {...Object} [sources] The source objects.
         * @returns {Object} Returns `object`.
         * @see _.defaults
         * @example
         *
         * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } });
         * // => { 'a': { 'b': 2, 'c': 3 } }
         */
        var defaultsDeep = baseRest(function(args) {
          args.push(undefined$1, customDefaultsMerge)
          return apply(mergeWith, undefined$1, args)
        })

        /**
         * This method is like `_.find` except that it returns the key of the first
         * element `predicate` returns truthy for instead of the element itself.
         *
         * @static
         * @memberOf _
         * @since 1.1.0
         * @category Object
         * @param {Object} object The object to inspect.
         * @param {Function} [predicate=_.identity] The function invoked per iteration.
         * @returns {string|undefined} Returns the key of the matched element,
         *  else `undefined`.
         * @example
         *
         * var users = {
         *   'barney':  { 'age': 36, 'active': true },
         *   'fred':    { 'age': 40, 'active': false },
         *   'pebbles': { 'age': 1,  'active': true }
         * };
         *
         * _.findKey(users, function(o) { return o.age < 40; });
         * // => 'barney' (iteration order is not guaranteed)
         *
         * // The `_.matches` iteratee shorthand.
         * _.findKey(users, { 'age': 1, 'active': true });
         * // => 'pebbles'
         *
         * // The `_.matchesProperty` iteratee shorthand.
         * _.findKey(users, ['active', false]);
         * // => 'fred'
         *
         * // The `_.property` iteratee shorthand.
         * _.findKey(users, 'active');
         * // => 'barney'
         */
        function findKey(object, predicate) {
          return baseFindKey(object, getIteratee(predicate, 3), baseForOwn)
        }

        /**
         * This method is like `_.findKey` except that it iterates over elements of
         * a collection in the opposite order.
         *
         * @static
         * @memberOf _
         * @since 2.0.0
         * @category Object
         * @param {Object} object The object to inspect.
         * @param {Function} [predicate=_.identity] The function invoked per iteration.
         * @returns {string|undefined} Returns the key of the matched element,
         *  else `undefined`.
         * @example
         *
         * var users = {
         *   'barney':  { 'age': 36, 'active': true },
         *   'fred':    { 'age': 40, 'active': false },
         *   'pebbles': { 'age': 1,  'active': true }
         * };
         *
         * _.findLastKey(users, function(o) { return o.age < 40; });
         * // => returns 'pebbles' assuming `_.findKey` returns 'barney'
         *
         * // The `_.matches` iteratee shorthand.
         * _.findLastKey(users, { 'age': 36, 'active': true });
         * // => 'barney'
         *
         * // The `_.matchesProperty` iteratee shorthand.
         * _.findLastKey(users, ['active', false]);
         * // => 'fred'
         *
         * // The `_.property` iteratee shorthand.
         * _.findLastKey(users, 'active');
         * // => 'pebbles'
         */
        function findLastKey(object, predicate) {
          return baseFindKey(object, getIteratee(predicate, 3), baseForOwnRight)
        }

        /**
         * Iterates over own and inherited enumerable string keyed properties of an
         * object and invokes `iteratee` for each property. The iteratee is invoked
         * with three arguments: (value, key, object). Iteratee functions may exit
         * iteration early by explicitly returning `false`.
         *
         * @static
         * @memberOf _
         * @since 0.3.0
         * @category Object
         * @param {Object} object The object to iterate over.
         * @param {Function} [iteratee=_.identity] The function invoked per iteration.
         * @returns {Object} Returns `object`.
         * @see _.forInRight
         * @example
         *
         * function Foo() {
         *   this.a = 1;
         *   this.b = 2;
         * }
         *
         * Foo.prototype.c = 3;
         *
         * _.forIn(new Foo, function(value, key) {
         *   console.log(key);
         * });
         * // => Logs 'a', 'b', then 'c' (iteration order is not guaranteed).
         */
        function forIn(object, iteratee) {
          return object == null
            ? object
            : baseFor(object, getIteratee(iteratee, 3), keysIn)
        }

        /**
         * This method is like `_.forIn` except that it iterates over properties of
         * `object` in the opposite order.
         *
         * @static
         * @memberOf _
         * @since 2.0.0
         * @category Object
         * @param {Object} object The object to iterate over.
         * @param {Function} [iteratee=_.identity] The function invoked per iteration.
         * @returns {Object} Returns `object`.
         * @see _.forIn
         * @example
         *
         * function Foo() {
         *   this.a = 1;
         *   this.b = 2;
         * }
         *
         * Foo.prototype.c = 3;
         *
         * _.forInRight(new Foo, function(value, key) {
         *   console.log(key);
         * });
         * // => Logs 'c', 'b', then 'a' assuming `_.forIn` logs 'a', 'b', then 'c'.
         */
        function forInRight(object, iteratee) {
          return object == null
            ? object
            : baseForRight(object, getIteratee(iteratee, 3), keysIn)
        }

        /**
         * Iterates over own enumerable string keyed properties of an object and
         * invokes `iteratee` for each property. The iteratee is invoked with three
         * arguments: (value, key, object). Iteratee functions may exit iteration
         * early by explicitly returning `false`.
         *
         * @static
         * @memberOf _
         * @since 0.3.0
         * @category Object
         * @param {Object} object The object to iterate over.
         * @param {Function} [iteratee=_.identity] The function invoked per iteration.
         * @returns {Object} Returns `object`.
         * @see _.forOwnRight
         * @example
         *
         * function Foo() {
         *   this.a = 1;
         *   this.b = 2;
         * }
         *
         * Foo.prototype.c = 3;
         *
         * _.forOwn(new Foo, function(value, key) {
         *   console.log(key);
         * });
         * // => Logs 'a' then 'b' (iteration order is not guaranteed).
         */
        function forOwn(object, iteratee) {
          return object && baseForOwn(object, getIteratee(iteratee, 3))
        }

        /**
         * This method is like `_.forOwn` except that it iterates over properties of
         * `object` in the opposite order.
         *
         * @static
         * @memberOf _
         * @since 2.0.0
         * @category Object
         * @param {Object} object The object to iterate over.
         * @param {Function} [iteratee=_.identity] The function invoked per iteration.
         * @returns {Object} Returns `object`.
         * @see _.forOwn
         * @example
         *
         * function Foo() {
         *   this.a = 1;
         *   this.b = 2;
         * }
         *
         * Foo.prototype.c = 3;
         *
         * _.forOwnRight(new Foo, function(value, key) {
         *   console.log(key);
         * });
         * // => Logs 'b' then 'a' assuming `_.forOwn` logs 'a' then 'b'.
         */
        function forOwnRight(object, iteratee) {
          return object && baseForOwnRight(object, getIteratee(iteratee, 3))
        }

        /**
         * Creates an array of function property names from own enumerable properties
         * of `object`.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Object
         * @param {Object} object The object to inspect.
         * @returns {Array} Returns the function names.
         * @see _.functionsIn
         * @example
         *
         * function Foo() {
         *   this.a = _.constant('a');
         *   this.b = _.constant('b');
         * }
         *
         * Foo.prototype.c = _.constant('c');
         *
         * _.functions(new Foo);
         * // => ['a', 'b']
         */
        function functions(object) {
          return object == null ? [] : baseFunctions(object, keys(object))
        }

        /**
         * Creates an array of function property names from own and inherited
         * enumerable properties of `object`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Object
         * @param {Object} object The object to inspect.
         * @returns {Array} Returns the function names.
         * @see _.functions
         * @example
         *
         * function Foo() {
         *   this.a = _.constant('a');
         *   this.b = _.constant('b');
         * }
         *
         * Foo.prototype.c = _.constant('c');
         *
         * _.functionsIn(new Foo);
         * // => ['a', 'b', 'c']
         */
        function functionsIn(object) {
          return object == null ? [] : baseFunctions(object, keysIn(object))
        }

        /**
         * Gets the value at `path` of `object`. If the resolved value is
         * `undefined`, the `defaultValue` is returned in its place.
         *
         * @static
         * @memberOf _
         * @since 3.7.0
         * @category Object
         * @param {Object} object The object to query.
         * @param {Array|string} path The path of the property to get.
         * @param {*} [defaultValue] The value returned for `undefined` resolved values.
         * @returns {*} Returns the resolved value.
         * @example
         *
         * var object = { 'a': [{ 'b': { 'c': 3 } }] };
         *
         * _.get(object, 'a[0].b.c');
         * // => 3
         *
         * _.get(object, ['a', '0', 'b', 'c']);
         * // => 3
         *
         * _.get(object, 'a.b.c', 'default');
         * // => 'default'
         */
        function get(object, path, defaultValue) {
          var result = object == null ? undefined$1 : baseGet(object, path)
          return result === undefined$1 ? defaultValue : result
        }

        /**
         * Checks if `path` is a direct property of `object`.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Object
         * @param {Object} object The object to query.
         * @param {Array|string} path The path to check.
         * @returns {boolean} Returns `true` if `path` exists, else `false`.
         * @example
         *
         * var object = { 'a': { 'b': 2 } };
         * var other = _.create({ 'a': _.create({ 'b': 2 }) });
         *
         * _.has(object, 'a');
         * // => true
         *
         * _.has(object, 'a.b');
         * // => true
         *
         * _.has(object, ['a', 'b']);
         * // => true
         *
         * _.has(other, 'a');
         * // => false
         */
        function has(object, path) {
          return object != null && hasPath(object, path, baseHas)
        }

        /**
         * Checks if `path` is a direct or inherited property of `object`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Object
         * @param {Object} object The object to query.
         * @param {Array|string} path The path to check.
         * @returns {boolean} Returns `true` if `path` exists, else `false`.
         * @example
         *
         * var object = _.create({ 'a': _.create({ 'b': 2 }) });
         *
         * _.hasIn(object, 'a');
         * // => true
         *
         * _.hasIn(object, 'a.b');
         * // => true
         *
         * _.hasIn(object, ['a', 'b']);
         * // => true
         *
         * _.hasIn(object, 'b');
         * // => false
         */
        function hasIn(object, path) {
          return object != null && hasPath(object, path, baseHasIn)
        }

        /**
         * Creates an object composed of the inverted keys and values of `object`.
         * If `object` contains duplicate values, subsequent values overwrite
         * property assignments of previous values.
         *
         * @static
         * @memberOf _
         * @since 0.7.0
         * @category Object
         * @param {Object} object The object to invert.
         * @returns {Object} Returns the new inverted object.
         * @example
         *
         * var object = { 'a': 1, 'b': 2, 'c': 1 };
         *
         * _.invert(object);
         * // => { '1': 'c', '2': 'b' }
         */
        var invert = createInverter(function(result, value, key) {
          if (value != null && typeof value.toString != "function") {
            value = nativeObjectToString.call(value)
          }

          result[value] = key
        }, constant(identity))

        /**
         * This method is like `_.invert` except that the inverted object is generated
         * from the results of running each element of `object` thru `iteratee`. The
         * corresponding inverted value of each inverted key is an array of keys
         * responsible for generating the inverted value. The iteratee is invoked
         * with one argument: (value).
         *
         * @static
         * @memberOf _
         * @since 4.1.0
         * @category Object
         * @param {Object} object The object to invert.
         * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
         * @returns {Object} Returns the new inverted object.
         * @example
         *
         * var object = { 'a': 1, 'b': 2, 'c': 1 };
         *
         * _.invertBy(object);
         * // => { '1': ['a', 'c'], '2': ['b'] }
         *
         * _.invertBy(object, function(value) {
         *   return 'group' + value;
         * });
         * // => { 'group1': ['a', 'c'], 'group2': ['b'] }
         */
        var invertBy = createInverter(function(result, value, key) {
          if (value != null && typeof value.toString != "function") {
            value = nativeObjectToString.call(value)
          }

          if (hasOwnProperty.call(result, value)) {
            result[value].push(key)
          } else {
            result[value] = [key]
          }
        }, getIteratee)

        /**
         * Invokes the method at `path` of `object`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Object
         * @param {Object} object The object to query.
         * @param {Array|string} path The path of the method to invoke.
         * @param {...*} [args] The arguments to invoke the method with.
         * @returns {*} Returns the result of the invoked method.
         * @example
         *
         * var object = { 'a': [{ 'b': { 'c': [1, 2, 3, 4] } }] };
         *
         * _.invoke(object, 'a[0].b.c.slice', 1, 3);
         * // => [2, 3]
         */
        var invoke = baseRest(baseInvoke)

        /**
         * Creates an array of the own enumerable property names of `object`.
         *
         * **Note:** Non-object values are coerced to objects. See the
         * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
         * for more details.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Object
         * @param {Object} object The object to query.
         * @returns {Array} Returns the array of property names.
         * @example
         *
         * function Foo() {
         *   this.a = 1;
         *   this.b = 2;
         * }
         *
         * Foo.prototype.c = 3;
         *
         * _.keys(new Foo);
         * // => ['a', 'b'] (iteration order is not guaranteed)
         *
         * _.keys('hi');
         * // => ['0', '1']
         */
        function keys(object) {
          return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object)
        }

        /**
         * Creates an array of the own and inherited enumerable property names of `object`.
         *
         * **Note:** Non-object values are coerced to objects.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Object
         * @param {Object} object The object to query.
         * @returns {Array} Returns the array of property names.
         * @example
         *
         * function Foo() {
         *   this.a = 1;
         *   this.b = 2;
         * }
         *
         * Foo.prototype.c = 3;
         *
         * _.keysIn(new Foo);
         * // => ['a', 'b', 'c'] (iteration order is not guaranteed)
         */
        function keysIn(object) {
          return isArrayLike(object)
            ? arrayLikeKeys(object, true)
            : baseKeysIn(object)
        }

        /**
         * The opposite of `_.mapValues`; this method creates an object with the
         * same values as `object` and keys generated by running each own enumerable
         * string keyed property of `object` thru `iteratee`. The iteratee is invoked
         * with three arguments: (value, key, object).
         *
         * @static
         * @memberOf _
         * @since 3.8.0
         * @category Object
         * @param {Object} object The object to iterate over.
         * @param {Function} [iteratee=_.identity] The function invoked per iteration.
         * @returns {Object} Returns the new mapped object.
         * @see _.mapValues
         * @example
         *
         * _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) {
         *   return key + value;
         * });
         * // => { 'a1': 1, 'b2': 2 }
         */
        function mapKeys(object, iteratee) {
          var result = {}
          iteratee = getIteratee(iteratee, 3)

          baseForOwn(object, function(value, key, object) {
            baseAssignValue(result, iteratee(value, key, object), value)
          })
          return result
        }

        /**
         * Creates an object with the same keys as `object` and values generated
         * by running each own enumerable string keyed property of `object` thru
         * `iteratee`. The iteratee is invoked with three arguments:
         * (value, key, object).
         *
         * @static
         * @memberOf _
         * @since 2.4.0
         * @category Object
         * @param {Object} object The object to iterate over.
         * @param {Function} [iteratee=_.identity] The function invoked per iteration.
         * @returns {Object} Returns the new mapped object.
         * @see _.mapKeys
         * @example
         *
         * var users = {
         *   'fred':    { 'user': 'fred',    'age': 40 },
         *   'pebbles': { 'user': 'pebbles', 'age': 1 }
         * };
         *
         * _.mapValues(users, function(o) { return o.age; });
         * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)
         *
         * // The `_.property` iteratee shorthand.
         * _.mapValues(users, 'age');
         * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)
         */
        function mapValues(object, iteratee) {
          var result = {}
          iteratee = getIteratee(iteratee, 3)

          baseForOwn(object, function(value, key, object) {
            baseAssignValue(result, key, iteratee(value, key, object))
          })
          return result
        }

        /**
         * This method is like `_.assign` except that it recursively merges own and
         * inherited enumerable string keyed properties of source objects into the
         * destination object. Source properties that resolve to `undefined` are
         * skipped if a destination value exists. Array and plain object properties
         * are merged recursively. Other objects and value types are overridden by
         * assignment. Source objects are applied from left to right. Subsequent
         * sources overwrite property assignments of previous sources.
         *
         * **Note:** This method mutates `object`.
         *
         * @static
         * @memberOf _
         * @since 0.5.0
         * @category Object
         * @param {Object} object The destination object.
         * @param {...Object} [sources] The source objects.
         * @returns {Object} Returns `object`.
         * @example
         *
         * var object = {
         *   'a': [{ 'b': 2 }, { 'd': 4 }]
         * };
         *
         * var other = {
         *   'a': [{ 'c': 3 }, { 'e': 5 }]
         * };
         *
         * _.merge(object, other);
         * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] }
         */
        var merge = createAssigner(function(object, source, srcIndex) {
          baseMerge(object, source, srcIndex)
        })

        /**
         * This method is like `_.merge` except that it accepts `customizer` which
         * is invoked to produce the merged values of the destination and source
         * properties. If `customizer` returns `undefined`, merging is handled by the
         * method instead. The `customizer` is invoked with six arguments:
         * (objValue, srcValue, key, object, source, stack).
         *
         * **Note:** This method mutates `object`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Object
         * @param {Object} object The destination object.
         * @param {...Object} sources The source objects.
         * @param {Function} customizer The function to customize assigned values.
         * @returns {Object} Returns `object`.
         * @example
         *
         * function customizer(objValue, srcValue) {
         *   if (_.isArray(objValue)) {
         *     return objValue.concat(srcValue);
         *   }
         * }
         *
         * var object = { 'a': [1], 'b': [2] };
         * var other = { 'a': [3], 'b': [4] };
         *
         * _.mergeWith(object, other, customizer);
         * // => { 'a': [1, 3], 'b': [2, 4] }
         */
        var mergeWith = createAssigner(function(
          object,
          source,
          srcIndex,
          customizer
        ) {
          baseMerge(object, source, srcIndex, customizer)
        })

        /**
         * The opposite of `_.pick`; this method creates an object composed of the
         * own and inherited enumerable property paths of `object` that are not omitted.
         *
         * **Note:** This method is considerably slower than `_.pick`.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Object
         * @param {Object} object The source object.
         * @param {...(string|string[])} [paths] The property paths to omit.
         * @returns {Object} Returns the new object.
         * @example
         *
         * var object = { 'a': 1, 'b': '2', 'c': 3 };
         *
         * _.omit(object, ['a', 'c']);
         * // => { 'b': '2' }
         */
        var omit = flatRest(function(object, paths) {
          var result = {}
          if (object == null) {
            return result
          }
          var isDeep = false
          paths = arrayMap(paths, function(path) {
            path = castPath(path, object)
            isDeep || (isDeep = path.length > 1)
            return path
          })
          copyObject(object, getAllKeysIn(object), result)
          if (isDeep) {
            result = baseClone(
              result,
              CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG,
              customOmitClone
            )
          }
          var length = paths.length
          while (length--) {
            baseUnset(result, paths[length])
          }
          return result
        })

        /**
         * The opposite of `_.pickBy`; this method creates an object composed of
         * the own and inherited enumerable string keyed properties of `object` that
         * `predicate` doesn't return truthy for. The predicate is invoked with two
         * arguments: (value, key).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Object
         * @param {Object} object The source object.
         * @param {Function} [predicate=_.identity] The function invoked per property.
         * @returns {Object} Returns the new object.
         * @example
         *
         * var object = { 'a': 1, 'b': '2', 'c': 3 };
         *
         * _.omitBy(object, _.isNumber);
         * // => { 'b': '2' }
         */
        function omitBy(object, predicate) {
          return pickBy(object, negate(getIteratee(predicate)))
        }

        /**
         * Creates an object composed of the picked `object` properties.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Object
         * @param {Object} object The source object.
         * @param {...(string|string[])} [paths] The property paths to pick.
         * @returns {Object} Returns the new object.
         * @example
         *
         * var object = { 'a': 1, 'b': '2', 'c': 3 };
         *
         * _.pick(object, ['a', 'c']);
         * // => { 'a': 1, 'c': 3 }
         */
        var pick = flatRest(function(object, paths) {
          return object == null ? {} : basePick(object, paths)
        })

        /**
         * Creates an object composed of the `object` properties `predicate` returns
         * truthy for. The predicate is invoked with two arguments: (value, key).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Object
         * @param {Object} object The source object.
         * @param {Function} [predicate=_.identity] The function invoked per property.
         * @returns {Object} Returns the new object.
         * @example
         *
         * var object = { 'a': 1, 'b': '2', 'c': 3 };
         *
         * _.pickBy(object, _.isNumber);
         * // => { 'a': 1, 'c': 3 }
         */
        function pickBy(object, predicate) {
          if (object == null) {
            return {}
          }
          var props = arrayMap(getAllKeysIn(object), function(prop) {
            return [prop]
          })
          predicate = getIteratee(predicate)
          return basePickBy(object, props, function(value, path) {
            return predicate(value, path[0])
          })
        }

        /**
         * This method is like `_.get` except that if the resolved value is a
         * function it's invoked with the `this` binding of its parent object and
         * its result is returned.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Object
         * @param {Object} object The object to query.
         * @param {Array|string} path The path of the property to resolve.
         * @param {*} [defaultValue] The value returned for `undefined` resolved values.
         * @returns {*} Returns the resolved value.
         * @example
         *
         * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] };
         *
         * _.result(object, 'a[0].b.c1');
         * // => 3
         *
         * _.result(object, 'a[0].b.c2');
         * // => 4
         *
         * _.result(object, 'a[0].b.c3', 'default');
         * // => 'default'
         *
         * _.result(object, 'a[0].b.c3', _.constant('default'));
         * // => 'default'
         */
        function result(object, path, defaultValue) {
          path = castPath(path, object)

          var index = -1,
            length = path.length

          // Ensure the loop is entered when path is empty.
          if (!length) {
            length = 1
            object = undefined$1
          }
          while (++index < length) {
            var value =
              object == null ? undefined$1 : object[toKey(path[index])]
            if (value === undefined$1) {
              index = length
              value = defaultValue
            }
            object = isFunction(value) ? value.call(object) : value
          }
          return object
        }

        /**
         * Sets the value at `path` of `object`. If a portion of `path` doesn't exist,
         * it's created. Arrays are created for missing index properties while objects
         * are created for all other missing properties. Use `_.setWith` to customize
         * `path` creation.
         *
         * **Note:** This method mutates `object`.
         *
         * @static
         * @memberOf _
         * @since 3.7.0
         * @category Object
         * @param {Object} object The object to modify.
         * @param {Array|string} path The path of the property to set.
         * @param {*} value The value to set.
         * @returns {Object} Returns `object`.
         * @example
         *
         * var object = { 'a': [{ 'b': { 'c': 3 } }] };
         *
         * _.set(object, 'a[0].b.c', 4);
         * console.log(object.a[0].b.c);
         * // => 4
         *
         * _.set(object, ['x', '0', 'y', 'z'], 5);
         * console.log(object.x[0].y.z);
         * // => 5
         */
        function set(object, path, value) {
          return object == null ? object : baseSet(object, path, value)
        }

        /**
         * This method is like `_.set` except that it accepts `customizer` which is
         * invoked to produce the objects of `path`.  If `customizer` returns `undefined`
         * path creation is handled by the method instead. The `customizer` is invoked
         * with three arguments: (nsValue, key, nsObject).
         *
         * **Note:** This method mutates `object`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Object
         * @param {Object} object The object to modify.
         * @param {Array|string} path The path of the property to set.
         * @param {*} value The value to set.
         * @param {Function} [customizer] The function to customize assigned values.
         * @returns {Object} Returns `object`.
         * @example
         *
         * var object = {};
         *
         * _.setWith(object, '[0][1]', 'a', Object);
         * // => { '0': { '1': 'a' } }
         */
        function setWith(object, path, value, customizer) {
          customizer =
            typeof customizer == "function" ? customizer : undefined$1
          return object == null
            ? object
            : baseSet(object, path, value, customizer)
        }

        /**
         * Creates an array of own enumerable string keyed-value pairs for `object`
         * which can be consumed by `_.fromPairs`. If `object` is a map or set, its
         * entries are returned.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @alias entries
         * @category Object
         * @param {Object} object The object to query.
         * @returns {Array} Returns the key-value pairs.
         * @example
         *
         * function Foo() {
         *   this.a = 1;
         *   this.b = 2;
         * }
         *
         * Foo.prototype.c = 3;
         *
         * _.toPairs(new Foo);
         * // => [['a', 1], ['b', 2]] (iteration order is not guaranteed)
         */
        var toPairs = createToPairs(keys)

        /**
         * Creates an array of own and inherited enumerable string keyed-value pairs
         * for `object` which can be consumed by `_.fromPairs`. If `object` is a map
         * or set, its entries are returned.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @alias entriesIn
         * @category Object
         * @param {Object} object The object to query.
         * @returns {Array} Returns the key-value pairs.
         * @example
         *
         * function Foo() {
         *   this.a = 1;
         *   this.b = 2;
         * }
         *
         * Foo.prototype.c = 3;
         *
         * _.toPairsIn(new Foo);
         * // => [['a', 1], ['b', 2], ['c', 3]] (iteration order is not guaranteed)
         */
        var toPairsIn = createToPairs(keysIn)

        /**
         * An alternative to `_.reduce`; this method transforms `object` to a new
         * `accumulator` object which is the result of running each of its own
         * enumerable string keyed properties thru `iteratee`, with each invocation
         * potentially mutating the `accumulator` object. If `accumulator` is not
         * provided, a new object with the same `[[Prototype]]` will be used. The
         * iteratee is invoked with four arguments: (accumulator, value, key, object).
         * Iteratee functions may exit iteration early by explicitly returning `false`.
         *
         * @static
         * @memberOf _
         * @since 1.3.0
         * @category Object
         * @param {Object} object The object to iterate over.
         * @param {Function} [iteratee=_.identity] The function invoked per iteration.
         * @param {*} [accumulator] The custom accumulator value.
         * @returns {*} Returns the accumulated value.
         * @example
         *
         * _.transform([2, 3, 4], function(result, n) {
         *   result.push(n *= n);
         *   return n % 2 == 0;
         * }, []);
         * // => [4, 9]
         *
         * _.transform({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {
         *   (result[value] || (result[value] = [])).push(key);
         * }, {});
         * // => { '1': ['a', 'c'], '2': ['b'] }
         */
        function transform(object, iteratee, accumulator) {
          var isArr = isArray(object),
            isArrLike = isArr || isBuffer(object) || isTypedArray(object)

          iteratee = getIteratee(iteratee, 4)
          if (accumulator == null) {
            var Ctor = object && object.constructor
            if (isArrLike) {
              accumulator = isArr ? new Ctor() : []
            } else if (isObject(object)) {
              accumulator = isFunction(Ctor)
                ? baseCreate(getPrototype(object))
                : {}
            } else {
              accumulator = {}
            }
          }
          ;(isArrLike ? arrayEach : baseForOwn)(object, function(
            value,
            index,
            object
          ) {
            return iteratee(accumulator, value, index, object)
          })
          return accumulator
        }

        /**
         * Removes the property at `path` of `object`.
         *
         * **Note:** This method mutates `object`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Object
         * @param {Object} object The object to modify.
         * @param {Array|string} path The path of the property to unset.
         * @returns {boolean} Returns `true` if the property is deleted, else `false`.
         * @example
         *
         * var object = { 'a': [{ 'b': { 'c': 7 } }] };
         * _.unset(object, 'a[0].b.c');
         * // => true
         *
         * console.log(object);
         * // => { 'a': [{ 'b': {} }] };
         *
         * _.unset(object, ['a', '0', 'b', 'c']);
         * // => true
         *
         * console.log(object);
         * // => { 'a': [{ 'b': {} }] };
         */
        function unset(object, path) {
          return object == null ? true : baseUnset(object, path)
        }

        /**
         * This method is like `_.set` except that accepts `updater` to produce the
         * value to set. Use `_.updateWith` to customize `path` creation. The `updater`
         * is invoked with one argument: (value).
         *
         * **Note:** This method mutates `object`.
         *
         * @static
         * @memberOf _
         * @since 4.6.0
         * @category Object
         * @param {Object} object The object to modify.
         * @param {Array|string} path The path of the property to set.
         * @param {Function} updater The function to produce the updated value.
         * @returns {Object} Returns `object`.
         * @example
         *
         * var object = { 'a': [{ 'b': { 'c': 3 } }] };
         *
         * _.update(object, 'a[0].b.c', function(n) { return n * n; });
         * console.log(object.a[0].b.c);
         * // => 9
         *
         * _.update(object, 'x[0].y.z', function(n) { return n ? n + 1 : 0; });
         * console.log(object.x[0].y.z);
         * // => 0
         */
        function update(object, path, updater) {
          return object == null
            ? object
            : baseUpdate(object, path, castFunction(updater))
        }

        /**
         * This method is like `_.update` except that it accepts `customizer` which is
         * invoked to produce the objects of `path`.  If `customizer` returns `undefined`
         * path creation is handled by the method instead. The `customizer` is invoked
         * with three arguments: (nsValue, key, nsObject).
         *
         * **Note:** This method mutates `object`.
         *
         * @static
         * @memberOf _
         * @since 4.6.0
         * @category Object
         * @param {Object} object The object to modify.
         * @param {Array|string} path The path of the property to set.
         * @param {Function} updater The function to produce the updated value.
         * @param {Function} [customizer] The function to customize assigned values.
         * @returns {Object} Returns `object`.
         * @example
         *
         * var object = {};
         *
         * _.updateWith(object, '[0][1]', _.constant('a'), Object);
         * // => { '0': { '1': 'a' } }
         */
        function updateWith(object, path, updater, customizer) {
          customizer =
            typeof customizer == "function" ? customizer : undefined$1
          return object == null
            ? object
            : baseUpdate(object, path, castFunction(updater), customizer)
        }

        /**
         * Creates an array of the own enumerable string keyed property values of `object`.
         *
         * **Note:** Non-object values are coerced to objects.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Object
         * @param {Object} object The object to query.
         * @returns {Array} Returns the array of property values.
         * @example
         *
         * function Foo() {
         *   this.a = 1;
         *   this.b = 2;
         * }
         *
         * Foo.prototype.c = 3;
         *
         * _.values(new Foo);
         * // => [1, 2] (iteration order is not guaranteed)
         *
         * _.values('hi');
         * // => ['h', 'i']
         */
        function values(object) {
          return object == null ? [] : baseValues(object, keys(object))
        }

        /**
         * Creates an array of the own and inherited enumerable string keyed property
         * values of `object`.
         *
         * **Note:** Non-object values are coerced to objects.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Object
         * @param {Object} object The object to query.
         * @returns {Array} Returns the array of property values.
         * @example
         *
         * function Foo() {
         *   this.a = 1;
         *   this.b = 2;
         * }
         *
         * Foo.prototype.c = 3;
         *
         * _.valuesIn(new Foo);
         * // => [1, 2, 3] (iteration order is not guaranteed)
         */
        function valuesIn(object) {
          return object == null ? [] : baseValues(object, keysIn(object))
        }

        /*------------------------------------------------------------------------*/

        /**
         * Clamps `number` within the inclusive `lower` and `upper` bounds.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Number
         * @param {number} number The number to clamp.
         * @param {number} [lower] The lower bound.
         * @param {number} upper The upper bound.
         * @returns {number} Returns the clamped number.
         * @example
         *
         * _.clamp(-10, -5, 5);
         * // => -5
         *
         * _.clamp(10, -5, 5);
         * // => 5
         */
        function clamp(number, lower, upper) {
          if (upper === undefined$1) {
            upper = lower
            lower = undefined$1
          }
          if (upper !== undefined$1) {
            upper = toNumber(upper)
            upper = upper === upper ? upper : 0
          }
          if (lower !== undefined$1) {
            lower = toNumber(lower)
            lower = lower === lower ? lower : 0
          }
          return baseClamp(toNumber(number), lower, upper)
        }

        /**
         * Checks if `n` is between `start` and up to, but not including, `end`. If
         * `end` is not specified, it's set to `start` with `start` then set to `0`.
         * If `start` is greater than `end` the params are swapped to support
         * negative ranges.
         *
         * @static
         * @memberOf _
         * @since 3.3.0
         * @category Number
         * @param {number} number The number to check.
         * @param {number} [start=0] The start of the range.
         * @param {number} end The end of the range.
         * @returns {boolean} Returns `true` if `number` is in the range, else `false`.
         * @see _.range, _.rangeRight
         * @example
         *
         * _.inRange(3, 2, 4);
         * // => true
         *
         * _.inRange(4, 8);
         * // => true
         *
         * _.inRange(4, 2);
         * // => false
         *
         * _.inRange(2, 2);
         * // => false
         *
         * _.inRange(1.2, 2);
         * // => true
         *
         * _.inRange(5.2, 4);
         * // => false
         *
         * _.inRange(-3, -2, -6);
         * // => true
         */
        function inRange(number, start, end) {
          start = toFinite(start)
          if (end === undefined$1) {
            end = start
            start = 0
          } else {
            end = toFinite(end)
          }
          number = toNumber(number)
          return baseInRange(number, start, end)
        }

        /**
         * Produces a random number between the inclusive `lower` and `upper` bounds.
         * If only one argument is provided a number between `0` and the given number
         * is returned. If `floating` is `true`, or either `lower` or `upper` are
         * floats, a floating-point number is returned instead of an integer.
         *
         * **Note:** JavaScript follows the IEEE-754 standard for resolving
         * floating-point values which can produce unexpected results.
         *
         * @static
         * @memberOf _
         * @since 0.7.0
         * @category Number
         * @param {number} [lower=0] The lower bound.
         * @param {number} [upper=1] The upper bound.
         * @param {boolean} [floating] Specify returning a floating-point number.
         * @returns {number} Returns the random number.
         * @example
         *
         * _.random(0, 5);
         * // => an integer between 0 and 5
         *
         * _.random(5);
         * // => also an integer between 0 and 5
         *
         * _.random(5, true);
         * // => a floating-point number between 0 and 5
         *
         * _.random(1.2, 5.2);
         * // => a floating-point number between 1.2 and 5.2
         */
        function random(lower, upper, floating) {
          if (
            floating &&
            typeof floating != "boolean" &&
            isIterateeCall(lower, upper, floating)
          ) {
            upper = floating = undefined$1
          }
          if (floating === undefined$1) {
            if (typeof upper == "boolean") {
              floating = upper
              upper = undefined$1
            } else if (typeof lower == "boolean") {
              floating = lower
              lower = undefined$1
            }
          }
          if (lower === undefined$1 && upper === undefined$1) {
            lower = 0
            upper = 1
          } else {
            lower = toFinite(lower)
            if (upper === undefined$1) {
              upper = lower
              lower = 0
            } else {
              upper = toFinite(upper)
            }
          }
          if (lower > upper) {
            var temp = lower
            lower = upper
            upper = temp
          }
          if (floating || lower % 1 || upper % 1) {
            var rand = nativeRandom()
            return nativeMin(
              lower +
                rand *
                  (upper -
                    lower +
                    freeParseFloat("1e-" + ((rand + "").length - 1))),
              upper
            )
          }
          return baseRandom(lower, upper)
        }

        /*------------------------------------------------------------------------*/

        /**
         * Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase).
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category String
         * @param {string} [string=''] The string to convert.
         * @returns {string} Returns the camel cased string.
         * @example
         *
         * _.camelCase('Foo Bar');
         * // => 'fooBar'
         *
         * _.camelCase('--foo-bar--');
         * // => 'fooBar'
         *
         * _.camelCase('__FOO_BAR__');
         * // => 'fooBar'
         */
        var camelCase = createCompounder(function(result, word, index) {
          word = word.toLowerCase()
          return result + (index ? capitalize(word) : word)
        })

        /**
         * Converts the first character of `string` to upper case and the remaining
         * to lower case.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category String
         * @param {string} [string=''] The string to capitalize.
         * @returns {string} Returns the capitalized string.
         * @example
         *
         * _.capitalize('FRED');
         * // => 'Fred'
         */
        function capitalize(string) {
          return upperFirst(toString(string).toLowerCase())
        }

        /**
         * Deburrs `string` by converting
         * [Latin-1 Supplement](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table)
         * and [Latin Extended-A](https://en.wikipedia.org/wiki/Latin_Extended-A)
         * letters to basic Latin letters and removing
         * [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks).
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category String
         * @param {string} [string=''] The string to deburr.
         * @returns {string} Returns the deburred string.
         * @example
         *
         * _.deburr('déjà vu');
         * // => 'deja vu'
         */
        function deburr(string) {
          string = toString(string)
          return (
            string &&
            string.replace(reLatin, deburrLetter).replace(reComboMark, "")
          )
        }

        /**
         * Checks if `string` ends with the given target string.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category String
         * @param {string} [string=''] The string to inspect.
         * @param {string} [target] The string to search for.
         * @param {number} [position=string.length] The position to search up to.
         * @returns {boolean} Returns `true` if `string` ends with `target`,
         *  else `false`.
         * @example
         *
         * _.endsWith('abc', 'c');
         * // => true
         *
         * _.endsWith('abc', 'b');
         * // => false
         *
         * _.endsWith('abc', 'b', 2);
         * // => true
         */
        function endsWith(string, target, position) {
          string = toString(string)
          target = baseToString(target)

          var length = string.length
          position =
            position === undefined$1
              ? length
              : baseClamp(toInteger(position), 0, length)

          var end = position
          position -= target.length
          return position >= 0 && string.slice(position, end) == target
        }

        /**
         * Converts the characters "&", "<", ">", '"', and "'" in `string` to their
         * corresponding HTML entities.
         *
         * **Note:** No other characters are escaped. To escape additional
         * characters use a third-party library like [_he_](https://mths.be/he).
         *
         * Though the ">" character is escaped for symmetry, characters like
         * ">" and "/" don't need escaping in HTML and have no special meaning
         * unless they're part of a tag or unquoted attribute value. See
         * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands)
         * (under "semi-related fun fact") for more details.
         *
         * When working with HTML you should always
         * [quote attribute values](http://wonko.com/post/html-escaping) to reduce
         * XSS vectors.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category String
         * @param {string} [string=''] The string to escape.
         * @returns {string} Returns the escaped string.
         * @example
         *
         * _.escape('fred, barney, & pebbles');
         * // => 'fred, barney, &amp; pebbles'
         */
        function escape(string) {
          string = toString(string)
          return string && reHasUnescapedHtml.test(string)
            ? string.replace(reUnescapedHtml, escapeHtmlChar)
            : string
        }

        /**
         * Escapes the `RegExp` special characters "^", "$", "\", ".", "*", "+",
         * "?", "(", ")", "[", "]", "{", "}", and "|" in `string`.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category String
         * @param {string} [string=''] The string to escape.
         * @returns {string} Returns the escaped string.
         * @example
         *
         * _.escapeRegExp('[lodash](https://lodash.com/)');
         * // => '\[lodash\]\(https://lodash\.com/\)'
         */
        function escapeRegExp(string) {
          string = toString(string)
          return string && reHasRegExpChar.test(string)
            ? string.replace(reRegExpChar, "\\$&")
            : string
        }

        /**
         * Converts `string` to
         * [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles).
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category String
         * @param {string} [string=''] The string to convert.
         * @returns {string} Returns the kebab cased string.
         * @example
         *
         * _.kebabCase('Foo Bar');
         * // => 'foo-bar'
         *
         * _.kebabCase('fooBar');
         * // => 'foo-bar'
         *
         * _.kebabCase('__FOO_BAR__');
         * // => 'foo-bar'
         */
        var kebabCase = createCompounder(function(result, word, index) {
          return result + (index ? "-" : "") + word.toLowerCase()
        })

        /**
         * Converts `string`, as space separated words, to lower case.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category String
         * @param {string} [string=''] The string to convert.
         * @returns {string} Returns the lower cased string.
         * @example
         *
         * _.lowerCase('--Foo-Bar--');
         * // => 'foo bar'
         *
         * _.lowerCase('fooBar');
         * // => 'foo bar'
         *
         * _.lowerCase('__FOO_BAR__');
         * // => 'foo bar'
         */
        var lowerCase = createCompounder(function(result, word, index) {
          return result + (index ? " " : "") + word.toLowerCase()
        })

        /**
         * Converts the first character of `string` to lower case.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category String
         * @param {string} [string=''] The string to convert.
         * @returns {string} Returns the converted string.
         * @example
         *
         * _.lowerFirst('Fred');
         * // => 'fred'
         *
         * _.lowerFirst('FRED');
         * // => 'fRED'
         */
        var lowerFirst = createCaseFirst("toLowerCase")

        /**
         * Pads `string` on the left and right sides if it's shorter than `length`.
         * Padding characters are truncated if they can't be evenly divided by `length`.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category String
         * @param {string} [string=''] The string to pad.
         * @param {number} [length=0] The padding length.
         * @param {string} [chars=' '] The string used as padding.
         * @returns {string} Returns the padded string.
         * @example
         *
         * _.pad('abc', 8);
         * // => '  abc   '
         *
         * _.pad('abc', 8, '_-');
         * // => '_-abc_-_'
         *
         * _.pad('abc', 3);
         * // => 'abc'
         */
        function pad(string, length, chars) {
          string = toString(string)
          length = toInteger(length)

          var strLength = length ? stringSize(string) : 0
          if (!length || strLength >= length) {
            return string
          }
          var mid = (length - strLength) / 2
          return (
            createPadding(nativeFloor(mid), chars) +
            string +
            createPadding(nativeCeil(mid), chars)
          )
        }

        /**
         * Pads `string` on the right side if it's shorter than `length`. Padding
         * characters are truncated if they exceed `length`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category String
         * @param {string} [string=''] The string to pad.
         * @param {number} [length=0] The padding length.
         * @param {string} [chars=' '] The string used as padding.
         * @returns {string} Returns the padded string.
         * @example
         *
         * _.padEnd('abc', 6);
         * // => 'abc   '
         *
         * _.padEnd('abc', 6, '_-');
         * // => 'abc_-_'
         *
         * _.padEnd('abc', 3);
         * // => 'abc'
         */
        function padEnd(string, length, chars) {
          string = toString(string)
          length = toInteger(length)

          var strLength = length ? stringSize(string) : 0
          return length && strLength < length
            ? string + createPadding(length - strLength, chars)
            : string
        }

        /**
         * Pads `string` on the left side if it's shorter than `length`. Padding
         * characters are truncated if they exceed `length`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category String
         * @param {string} [string=''] The string to pad.
         * @param {number} [length=0] The padding length.
         * @param {string} [chars=' '] The string used as padding.
         * @returns {string} Returns the padded string.
         * @example
         *
         * _.padStart('abc', 6);
         * // => '   abc'
         *
         * _.padStart('abc', 6, '_-');
         * // => '_-_abc'
         *
         * _.padStart('abc', 3);
         * // => 'abc'
         */
        function padStart(string, length, chars) {
          string = toString(string)
          length = toInteger(length)

          var strLength = length ? stringSize(string) : 0
          return length && strLength < length
            ? createPadding(length - strLength, chars) + string
            : string
        }

        /**
         * Converts `string` to an integer of the specified radix. If `radix` is
         * `undefined` or `0`, a `radix` of `10` is used unless `value` is a
         * hexadecimal, in which case a `radix` of `16` is used.
         *
         * **Note:** This method aligns with the
         * [ES5 implementation](https://es5.github.io/#x15.1.2.2) of `parseInt`.
         *
         * @static
         * @memberOf _
         * @since 1.1.0
         * @category String
         * @param {string} string The string to convert.
         * @param {number} [radix=10] The radix to interpret `value` by.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {number} Returns the converted integer.
         * @example
         *
         * _.parseInt('08');
         * // => 8
         *
         * _.map(['6', '08', '10'], _.parseInt);
         * // => [6, 8, 10]
         */
        function parseInt(string, radix, guard) {
          if (guard || radix == null) {
            radix = 0
          } else if (radix) {
            radix = +radix
          }
          return nativeParseInt(
            toString(string).replace(reTrimStart, ""),
            radix || 0
          )
        }

        /**
         * Repeats the given string `n` times.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category String
         * @param {string} [string=''] The string to repeat.
         * @param {number} [n=1] The number of times to repeat the string.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {string} Returns the repeated string.
         * @example
         *
         * _.repeat('*', 3);
         * // => '***'
         *
         * _.repeat('abc', 2);
         * // => 'abcabc'
         *
         * _.repeat('abc', 0);
         * // => ''
         */
        function repeat(string, n, guard) {
          if (guard ? isIterateeCall(string, n, guard) : n === undefined$1) {
            n = 1
          } else {
            n = toInteger(n)
          }
          return baseRepeat(toString(string), n)
        }

        /**
         * Replaces matches for `pattern` in `string` with `replacement`.
         *
         * **Note:** This method is based on
         * [`String#replace`](https://mdn.io/String/replace).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category String
         * @param {string} [string=''] The string to modify.
         * @param {RegExp|string} pattern The pattern to replace.
         * @param {Function|string} replacement The match replacement.
         * @returns {string} Returns the modified string.
         * @example
         *
         * _.replace('Hi Fred', 'Fred', 'Barney');
         * // => 'Hi Barney'
         */
        function replace() {
          var args = arguments,
            string = toString(args[0])

          return args.length < 3 ? string : string.replace(args[1], args[2])
        }

        /**
         * Converts `string` to
         * [snake case](https://en.wikipedia.org/wiki/Snake_case).
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category String
         * @param {string} [string=''] The string to convert.
         * @returns {string} Returns the snake cased string.
         * @example
         *
         * _.snakeCase('Foo Bar');
         * // => 'foo_bar'
         *
         * _.snakeCase('fooBar');
         * // => 'foo_bar'
         *
         * _.snakeCase('--FOO-BAR--');
         * // => 'foo_bar'
         */
        var snakeCase = createCompounder(function(result, word, index) {
          return result + (index ? "_" : "") + word.toLowerCase()
        })

        /**
         * Splits `string` by `separator`.
         *
         * **Note:** This method is based on
         * [`String#split`](https://mdn.io/String/split).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category String
         * @param {string} [string=''] The string to split.
         * @param {RegExp|string} separator The separator pattern to split by.
         * @param {number} [limit] The length to truncate results to.
         * @returns {Array} Returns the string segments.
         * @example
         *
         * _.split('a-b-c', '-', 2);
         * // => ['a', 'b']
         */
        function split(string, separator, limit) {
          if (
            limit &&
            typeof limit != "number" &&
            isIterateeCall(string, separator, limit)
          ) {
            separator = limit = undefined$1
          }
          limit = limit === undefined$1 ? MAX_ARRAY_LENGTH : limit >>> 0
          if (!limit) {
            return []
          }
          string = toString(string)
          if (
            string &&
            (typeof separator == "string" ||
              (separator != null && !isRegExp(separator)))
          ) {
            separator = baseToString(separator)
            if (!separator && hasUnicode(string)) {
              return castSlice(stringToArray(string), 0, limit)
            }
          }
          return string.split(separator, limit)
        }

        /**
         * Converts `string` to
         * [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage).
         *
         * @static
         * @memberOf _
         * @since 3.1.0
         * @category String
         * @param {string} [string=''] The string to convert.
         * @returns {string} Returns the start cased string.
         * @example
         *
         * _.startCase('--foo-bar--');
         * // => 'Foo Bar'
         *
         * _.startCase('fooBar');
         * // => 'Foo Bar'
         *
         * _.startCase('__FOO_BAR__');
         * // => 'FOO BAR'
         */
        var startCase = createCompounder(function(result, word, index) {
          return result + (index ? " " : "") + upperFirst(word)
        })

        /**
         * Checks if `string` starts with the given target string.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category String
         * @param {string} [string=''] The string to inspect.
         * @param {string} [target] The string to search for.
         * @param {number} [position=0] The position to search from.
         * @returns {boolean} Returns `true` if `string` starts with `target`,
         *  else `false`.
         * @example
         *
         * _.startsWith('abc', 'a');
         * // => true
         *
         * _.startsWith('abc', 'b');
         * // => false
         *
         * _.startsWith('abc', 'b', 1);
         * // => true
         */
        function startsWith(string, target, position) {
          string = toString(string)
          position =
            position == null
              ? 0
              : baseClamp(toInteger(position), 0, string.length)

          target = baseToString(target)
          return string.slice(position, position + target.length) == target
        }

        /**
         * Creates a compiled template function that can interpolate data properties
         * in "interpolate" delimiters, HTML-escape interpolated data properties in
         * "escape" delimiters, and execute JavaScript in "evaluate" delimiters. Data
         * properties may be accessed as free variables in the template. If a setting
         * object is given, it takes precedence over `_.templateSettings` values.
         *
         * **Note:** In the development build `_.template` utilizes
         * [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl)
         * for easier debugging.
         *
         * For more information on precompiling templates see
         * [lodash's custom builds documentation](https://lodash.com/custom-builds).
         *
         * For more information on Chrome extension sandboxes see
         * [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval).
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category String
         * @param {string} [string=''] The template string.
         * @param {Object} [options={}] The options object.
         * @param {RegExp} [options.escape=_.templateSettings.escape]
         *  The HTML "escape" delimiter.
         * @param {RegExp} [options.evaluate=_.templateSettings.evaluate]
         *  The "evaluate" delimiter.
         * @param {Object} [options.imports=_.templateSettings.imports]
         *  An object to import into the template as free variables.
         * @param {RegExp} [options.interpolate=_.templateSettings.interpolate]
         *  The "interpolate" delimiter.
         * @param {string} [options.sourceURL='lodash.templateSources[n]']
         *  The sourceURL of the compiled template.
         * @param {string} [options.variable='obj']
         *  The data object variable name.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {Function} Returns the compiled template function.
         * @example
         *
         * // Use the "interpolate" delimiter to create a compiled template.
         * var compiled = _.template('hello <%= user %>!');
         * compiled({ 'user': 'fred' });
         * // => 'hello fred!'
         *
         * // Use the HTML "escape" delimiter to escape data property values.
         * var compiled = _.template('<b><%- value %></b>');
         * compiled({ 'value': '<script>' });
         * // => '<b>&lt;script&gt;</b>'
         *
         * // Use the "evaluate" delimiter to execute JavaScript and generate HTML.
         * var compiled = _.template('<% _.forEach(users, function(user) { %><li><%- user %></li><% }); %>');
         * compiled({ 'users': ['fred', 'barney'] });
         * // => '<li>fred</li><li>barney</li>'
         *
         * // Use the internal `print` function in "evaluate" delimiters.
         * var compiled = _.template('<% print("hello " + user); %>!');
         * compiled({ 'user': 'barney' });
         * // => 'hello barney!'
         *
         * // Use the ES template literal delimiter as an "interpolate" delimiter.
         * // Disable support by replacing the "interpolate" delimiter.
         * var compiled = _.template('hello ${ user }!');
         * compiled({ 'user': 'pebbles' });
         * // => 'hello pebbles!'
         *
         * // Use backslashes to treat delimiters as plain text.
         * var compiled = _.template('<%= "\\<%- value %\\>" %>');
         * compiled({ 'value': 'ignored' });
         * // => '<%- value %>'
         *
         * // Use the `imports` option to import `jQuery` as `jq`.
         * var text = '<% jq.each(users, function(user) { %><li><%- user %></li><% }); %>';
         * var compiled = _.template(text, { 'imports': { 'jq': jQuery } });
         * compiled({ 'users': ['fred', 'barney'] });
         * // => '<li>fred</li><li>barney</li>'
         *
         * // Use the `sourceURL` option to specify a custom sourceURL for the template.
         * var compiled = _.template('hello <%= user %>!', { 'sourceURL': '/basic/greeting.jst' });
         * compiled(data);
         * // => Find the source of "greeting.jst" under the Sources tab or Resources panel of the web inspector.
         *
         * // Use the `variable` option to ensure a with-statement isn't used in the compiled template.
         * var compiled = _.template('hi <%= data.user %>!', { 'variable': 'data' });
         * compiled.source;
         * // => function(data) {
         * //   var __t, __p = '';
         * //   __p += 'hi ' + ((__t = ( data.user )) == null ? '' : __t) + '!';
         * //   return __p;
         * // }
         *
         * // Use custom template delimiters.
         * _.templateSettings.interpolate = /{{([\s\S]+?)}}/g;
         * var compiled = _.template('hello {{ user }}!');
         * compiled({ 'user': 'mustache' });
         * // => 'hello mustache!'
         *
         * // Use the `source` property to inline compiled templates for meaningful
         * // line numbers in error messages and stack traces.
         * fs.writeFileSync(path.join(process.cwd(), 'jst.js'), '\
         *   var JST = {\
         *     "main": ' + _.template(mainText).source + '\
         *   };\
         * ');
         */
        function template(string, options, guard) {
          // Based on John Resig's `tmpl` implementation
          // (http://ejohn.org/blog/javascript-micro-templating/)
          // and Laura Doktorova's doT.js (https://github.com/olado/doT).
          var settings = lodash.templateSettings

          if (guard && isIterateeCall(string, options, guard)) {
            options = undefined$1
          }
          string = toString(string)
          options = assignInWith({}, options, settings, customDefaultsAssignIn)

          var imports = assignInWith(
              {},
              options.imports,
              settings.imports,
              customDefaultsAssignIn
            ),
            importsKeys = keys(imports),
            importsValues = baseValues(imports, importsKeys)

          var isEscaping,
            isEvaluating,
            index = 0,
            interpolate = options.interpolate || reNoMatch,
            source = "__p += '"

          // Compile the regexp to match each delimiter.
          var reDelimiters = RegExp(
            (options.escape || reNoMatch).source +
              "|" +
              interpolate.source +
              "|" +
              (interpolate === reInterpolate ? reEsTemplate : reNoMatch)
                .source +
              "|" +
              (options.evaluate || reNoMatch).source +
              "|$",
            "g"
          )

          // Use a sourceURL for easier debugging.
          // The sourceURL gets injected into the source that's eval-ed, so be careful
          // with lookup (in case of e.g. prototype pollution), and strip newlines if any.
          // A newline wouldn't be a valid sourceURL anyway, and it'd enable code injection.
          var sourceURL =
            "//# sourceURL=" +
            (hasOwnProperty.call(options, "sourceURL")
              ? (options.sourceURL + "").replace(/[\r\n]/g, " ")
              : "lodash.templateSources[" + ++templateCounter + "]") +
            "\n"

          string.replace(reDelimiters, function(
            match,
            escapeValue,
            interpolateValue,
            esTemplateValue,
            evaluateValue,
            offset
          ) {
            interpolateValue || (interpolateValue = esTemplateValue)

            // Escape characters that can't be included in string literals.
            source += string
              .slice(index, offset)
              .replace(reUnescapedString, escapeStringChar)

            // Replace delimiters with snippets.
            if (escapeValue) {
              isEscaping = true
              source += "' +\n__e(" + escapeValue + ") +\n'"
            }
            if (evaluateValue) {
              isEvaluating = true
              source += "';\n" + evaluateValue + ";\n__p += '"
            }
            if (interpolateValue) {
              source +=
                "' +\n((__t = (" +
                interpolateValue +
                ")) == null ? '' : __t) +\n'"
            }
            index = offset + match.length

            // The JS engine embedded in Adobe products needs `match` returned in
            // order to produce the correct `offset` value.
            return match
          })

          source += "';\n"

          // If `variable` is not specified wrap a with-statement around the generated
          // code to add the data object to the top of the scope chain.
          // Like with sourceURL, we take care to not check the option's prototype,
          // as this configuration is a code injection vector.
          var variable =
            hasOwnProperty.call(options, "variable") && options.variable
          if (!variable) {
            source = "with (obj) {\n" + source + "\n}\n"
          }
          // Cleanup code by stripping empty strings.
          source = (isEvaluating
            ? source.replace(reEmptyStringLeading, "")
            : source
          )
            .replace(reEmptyStringMiddle, "$1")
            .replace(reEmptyStringTrailing, "$1;")

          // Frame code as the function body.
          source =
            "function(" +
            (variable || "obj") +
            ") {\n" +
            (variable ? "" : "obj || (obj = {});\n") +
            "var __t, __p = ''" +
            (isEscaping ? ", __e = _.escape" : "") +
            (isEvaluating
              ? ", __j = Array.prototype.join;\n" +
                "function print() { __p += __j.call(arguments, '') }\n"
              : ";\n") +
            source +
            "return __p\n}"

          var result = attempt(function() {
            return Function(importsKeys, sourceURL + "return " + source).apply(
              undefined$1,
              importsValues
            )
          })

          // Provide the compiled function's source by its `toString` method or
          // the `source` property as a convenience for inlining compiled templates.
          result.source = source
          if (isError(result)) {
            throw result
          }
          return result
        }

        /**
         * Converts `string`, as a whole, to lower case just like
         * [String#toLowerCase](https://mdn.io/toLowerCase).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category String
         * @param {string} [string=''] The string to convert.
         * @returns {string} Returns the lower cased string.
         * @example
         *
         * _.toLower('--Foo-Bar--');
         * // => '--foo-bar--'
         *
         * _.toLower('fooBar');
         * // => 'foobar'
         *
         * _.toLower('__FOO_BAR__');
         * // => '__foo_bar__'
         */
        function toLower(value) {
          return toString(value).toLowerCase()
        }

        /**
         * Converts `string`, as a whole, to upper case just like
         * [String#toUpperCase](https://mdn.io/toUpperCase).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category String
         * @param {string} [string=''] The string to convert.
         * @returns {string} Returns the upper cased string.
         * @example
         *
         * _.toUpper('--foo-bar--');
         * // => '--FOO-BAR--'
         *
         * _.toUpper('fooBar');
         * // => 'FOOBAR'
         *
         * _.toUpper('__foo_bar__');
         * // => '__FOO_BAR__'
         */
        function toUpper(value) {
          return toString(value).toUpperCase()
        }

        /**
         * Removes leading and trailing whitespace or specified characters from `string`.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category String
         * @param {string} [string=''] The string to trim.
         * @param {string} [chars=whitespace] The characters to trim.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {string} Returns the trimmed string.
         * @example
         *
         * _.trim('  abc  ');
         * // => 'abc'
         *
         * _.trim('-_-abc-_-', '_-');
         * // => 'abc'
         *
         * _.map(['  foo  ', '  bar  '], _.trim);
         * // => ['foo', 'bar']
         */
        function trim(string, chars, guard) {
          string = toString(string)
          if (string && (guard || chars === undefined$1)) {
            return string.replace(reTrim, "")
          }
          if (!string || !(chars = baseToString(chars))) {
            return string
          }
          var strSymbols = stringToArray(string),
            chrSymbols = stringToArray(chars),
            start = charsStartIndex(strSymbols, chrSymbols),
            end = charsEndIndex(strSymbols, chrSymbols) + 1

          return castSlice(strSymbols, start, end).join("")
        }

        /**
         * Removes trailing whitespace or specified characters from `string`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category String
         * @param {string} [string=''] The string to trim.
         * @param {string} [chars=whitespace] The characters to trim.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {string} Returns the trimmed string.
         * @example
         *
         * _.trimEnd('  abc  ');
         * // => '  abc'
         *
         * _.trimEnd('-_-abc-_-', '_-');
         * // => '-_-abc'
         */
        function trimEnd(string, chars, guard) {
          string = toString(string)
          if (string && (guard || chars === undefined$1)) {
            return string.replace(reTrimEnd, "")
          }
          if (!string || !(chars = baseToString(chars))) {
            return string
          }
          var strSymbols = stringToArray(string),
            end = charsEndIndex(strSymbols, stringToArray(chars)) + 1

          return castSlice(strSymbols, 0, end).join("")
        }

        /**
         * Removes leading whitespace or specified characters from `string`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category String
         * @param {string} [string=''] The string to trim.
         * @param {string} [chars=whitespace] The characters to trim.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {string} Returns the trimmed string.
         * @example
         *
         * _.trimStart('  abc  ');
         * // => 'abc  '
         *
         * _.trimStart('-_-abc-_-', '_-');
         * // => 'abc-_-'
         */
        function trimStart(string, chars, guard) {
          string = toString(string)
          if (string && (guard || chars === undefined$1)) {
            return string.replace(reTrimStart, "")
          }
          if (!string || !(chars = baseToString(chars))) {
            return string
          }
          var strSymbols = stringToArray(string),
            start = charsStartIndex(strSymbols, stringToArray(chars))

          return castSlice(strSymbols, start).join("")
        }

        /**
         * Truncates `string` if it's longer than the given maximum string length.
         * The last characters of the truncated string are replaced with the omission
         * string which defaults to "...".
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category String
         * @param {string} [string=''] The string to truncate.
         * @param {Object} [options={}] The options object.
         * @param {number} [options.length=30] The maximum string length.
         * @param {string} [options.omission='...'] The string to indicate text is omitted.
         * @param {RegExp|string} [options.separator] The separator pattern to truncate to.
         * @returns {string} Returns the truncated string.
         * @example
         *
         * _.truncate('hi-diddly-ho there, neighborino');
         * // => 'hi-diddly-ho there, neighbo...'
         *
         * _.truncate('hi-diddly-ho there, neighborino', {
         *   'length': 24,
         *   'separator': ' '
         * });
         * // => 'hi-diddly-ho there,...'
         *
         * _.truncate('hi-diddly-ho there, neighborino', {
         *   'length': 24,
         *   'separator': /,? +/
         * });
         * // => 'hi-diddly-ho there...'
         *
         * _.truncate('hi-diddly-ho there, neighborino', {
         *   'omission': ' [...]'
         * });
         * // => 'hi-diddly-ho there, neig [...]'
         */
        function truncate(string, options) {
          var length = DEFAULT_TRUNC_LENGTH,
            omission = DEFAULT_TRUNC_OMISSION

          if (isObject(options)) {
            var separator =
              "separator" in options ? options.separator : separator
            length = "length" in options ? toInteger(options.length) : length
            omission =
              "omission" in options ? baseToString(options.omission) : omission
          }
          string = toString(string)

          var strLength = string.length
          if (hasUnicode(string)) {
            var strSymbols = stringToArray(string)
            strLength = strSymbols.length
          }
          if (length >= strLength) {
            return string
          }
          var end = length - stringSize(omission)
          if (end < 1) {
            return omission
          }
          var result = strSymbols
            ? castSlice(strSymbols, 0, end).join("")
            : string.slice(0, end)

          if (separator === undefined$1) {
            return result + omission
          }
          if (strSymbols) {
            end += result.length - end
          }
          if (isRegExp(separator)) {
            if (string.slice(end).search(separator)) {
              var match,
                substring = result

              if (!separator.global) {
                separator = RegExp(
                  separator.source,
                  toString(reFlags.exec(separator)) + "g"
                )
              }
              separator.lastIndex = 0
              while ((match = separator.exec(substring))) {
                var newEnd = match.index
              }
              result = result.slice(0, newEnd === undefined$1 ? end : newEnd)
            }
          } else if (string.indexOf(baseToString(separator), end) != end) {
            var index = result.lastIndexOf(separator)
            if (index > -1) {
              result = result.slice(0, index)
            }
          }
          return result + omission
        }

        /**
         * The inverse of `_.escape`; this method converts the HTML entities
         * `&amp;`, `&lt;`, `&gt;`, `&quot;`, and `&#39;` in `string` to
         * their corresponding characters.
         *
         * **Note:** No other HTML entities are unescaped. To unescape additional
         * HTML entities use a third-party library like [_he_](https://mths.be/he).
         *
         * @static
         * @memberOf _
         * @since 0.6.0
         * @category String
         * @param {string} [string=''] The string to unescape.
         * @returns {string} Returns the unescaped string.
         * @example
         *
         * _.unescape('fred, barney, &amp; pebbles');
         * // => 'fred, barney, & pebbles'
         */
        function unescape(string) {
          string = toString(string)
          return string && reHasEscapedHtml.test(string)
            ? string.replace(reEscapedHtml, unescapeHtmlChar)
            : string
        }

        /**
         * Converts `string`, as space separated words, to upper case.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category String
         * @param {string} [string=''] The string to convert.
         * @returns {string} Returns the upper cased string.
         * @example
         *
         * _.upperCase('--foo-bar');
         * // => 'FOO BAR'
         *
         * _.upperCase('fooBar');
         * // => 'FOO BAR'
         *
         * _.upperCase('__foo_bar__');
         * // => 'FOO BAR'
         */
        var upperCase = createCompounder(function(result, word, index) {
          return result + (index ? " " : "") + word.toUpperCase()
        })

        /**
         * Converts the first character of `string` to upper case.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category String
         * @param {string} [string=''] The string to convert.
         * @returns {string} Returns the converted string.
         * @example
         *
         * _.upperFirst('fred');
         * // => 'Fred'
         *
         * _.upperFirst('FRED');
         * // => 'FRED'
         */
        var upperFirst = createCaseFirst("toUpperCase")

        /**
         * Splits `string` into an array of its words.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category String
         * @param {string} [string=''] The string to inspect.
         * @param {RegExp|string} [pattern] The pattern to match words.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {Array} Returns the words of `string`.
         * @example
         *
         * _.words('fred, barney, & pebbles');
         * // => ['fred', 'barney', 'pebbles']
         *
         * _.words('fred, barney, & pebbles', /[^, ]+/g);
         * // => ['fred', 'barney', '&', 'pebbles']
         */
        function words(string, pattern, guard) {
          string = toString(string)
          pattern = guard ? undefined$1 : pattern

          if (pattern === undefined$1) {
            return hasUnicodeWord(string)
              ? unicodeWords(string)
              : asciiWords(string)
          }
          return string.match(pattern) || []
        }

        /*------------------------------------------------------------------------*/

        /**
         * Attempts to invoke `func`, returning either the result or the caught error
         * object. Any additional arguments are provided to `func` when it's invoked.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Util
         * @param {Function} func The function to attempt.
         * @param {...*} [args] The arguments to invoke `func` with.
         * @returns {*} Returns the `func` result or error object.
         * @example
         *
         * // Avoid throwing errors for invalid selectors.
         * var elements = _.attempt(function(selector) {
         *   return document.querySelectorAll(selector);
         * }, '>_>');
         *
         * if (_.isError(elements)) {
         *   elements = [];
         * }
         */
        var attempt = baseRest(function(func, args) {
          try {
            return apply(func, undefined$1, args)
          } catch (e) {
            return isError(e) ? e : new Error(e)
          }
        })

        /**
         * Binds methods of an object to the object itself, overwriting the existing
         * method.
         *
         * **Note:** This method doesn't set the "length" property of bound functions.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Util
         * @param {Object} object The object to bind and assign the bound methods to.
         * @param {...(string|string[])} methodNames The object method names to bind.
         * @returns {Object} Returns `object`.
         * @example
         *
         * var view = {
         *   'label': 'docs',
         *   'click': function() {
         *     console.log('clicked ' + this.label);
         *   }
         * };
         *
         * _.bindAll(view, ['click']);
         * jQuery(element).on('click', view.click);
         * // => Logs 'clicked docs' when clicked.
         */
        var bindAll = flatRest(function(object, methodNames) {
          arrayEach(methodNames, function(key) {
            key = toKey(key)
            baseAssignValue(object, key, bind(object[key], object))
          })
          return object
        })

        /**
         * Creates a function that iterates over `pairs` and invokes the corresponding
         * function of the first predicate to return truthy. The predicate-function
         * pairs are invoked with the `this` binding and arguments of the created
         * function.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Util
         * @param {Array} pairs The predicate-function pairs.
         * @returns {Function} Returns the new composite function.
         * @example
         *
         * var func = _.cond([
         *   [_.matches({ 'a': 1 }),           _.constant('matches A')],
         *   [_.conforms({ 'b': _.isNumber }), _.constant('matches B')],
         *   [_.stubTrue,                      _.constant('no match')]
         * ]);
         *
         * func({ 'a': 1, 'b': 2 });
         * // => 'matches A'
         *
         * func({ 'a': 0, 'b': 1 });
         * // => 'matches B'
         *
         * func({ 'a': '1', 'b': '2' });
         * // => 'no match'
         */
        function cond(pairs) {
          var length = pairs == null ? 0 : pairs.length,
            toIteratee = getIteratee()

          pairs = !length
            ? []
            : arrayMap(pairs, function(pair) {
                if (typeof pair[1] != "function") {
                  throw new TypeError(FUNC_ERROR_TEXT)
                }
                return [toIteratee(pair[0]), pair[1]]
              })

          return baseRest(function(args) {
            var index = -1
            while (++index < length) {
              var pair = pairs[index]
              if (apply(pair[0], this, args)) {
                return apply(pair[1], this, args)
              }
            }
          })
        }

        /**
         * Creates a function that invokes the predicate properties of `source` with
         * the corresponding property values of a given object, returning `true` if
         * all predicates return truthy, else `false`.
         *
         * **Note:** The created function is equivalent to `_.conformsTo` with
         * `source` partially applied.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Util
         * @param {Object} source The object of property predicates to conform to.
         * @returns {Function} Returns the new spec function.
         * @example
         *
         * var objects = [
         *   { 'a': 2, 'b': 1 },
         *   { 'a': 1, 'b': 2 }
         * ];
         *
         * _.filter(objects, _.conforms({ 'b': function(n) { return n > 1; } }));
         * // => [{ 'a': 1, 'b': 2 }]
         */
        function conforms(source) {
          return baseConforms(baseClone(source, CLONE_DEEP_FLAG))
        }

        /**
         * Creates a function that returns `value`.
         *
         * @static
         * @memberOf _
         * @since 2.4.0
         * @category Util
         * @param {*} value The value to return from the new function.
         * @returns {Function} Returns the new constant function.
         * @example
         *
         * var objects = _.times(2, _.constant({ 'a': 1 }));
         *
         * console.log(objects);
         * // => [{ 'a': 1 }, { 'a': 1 }]
         *
         * console.log(objects[0] === objects[1]);
         * // => true
         */
        function constant(value) {
          return function() {
            return value
          }
        }

        /**
         * Checks `value` to determine whether a default value should be returned in
         * its place. The `defaultValue` is returned if `value` is `NaN`, `null`,
         * or `undefined`.
         *
         * @static
         * @memberOf _
         * @since 4.14.0
         * @category Util
         * @param {*} value The value to check.
         * @param {*} defaultValue The default value.
         * @returns {*} Returns the resolved value.
         * @example
         *
         * _.defaultTo(1, 10);
         * // => 1
         *
         * _.defaultTo(undefined, 10);
         * // => 10
         */
        function defaultTo(value, defaultValue) {
          return value == null || value !== value ? defaultValue : value
        }

        /**
         * Creates a function that returns the result of invoking the given functions
         * with the `this` binding of the created function, where each successive
         * invocation is supplied the return value of the previous.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Util
         * @param {...(Function|Function[])} [funcs] The functions to invoke.
         * @returns {Function} Returns the new composite function.
         * @see _.flowRight
         * @example
         *
         * function square(n) {
         *   return n * n;
         * }
         *
         * var addSquare = _.flow([_.add, square]);
         * addSquare(1, 2);
         * // => 9
         */
        var flow = createFlow()

        /**
         * This method is like `_.flow` except that it creates a function that
         * invokes the given functions from right to left.
         *
         * @static
         * @since 3.0.0
         * @memberOf _
         * @category Util
         * @param {...(Function|Function[])} [funcs] The functions to invoke.
         * @returns {Function} Returns the new composite function.
         * @see _.flow
         * @example
         *
         * function square(n) {
         *   return n * n;
         * }
         *
         * var addSquare = _.flowRight([square, _.add]);
         * addSquare(1, 2);
         * // => 9
         */
        var flowRight = createFlow(true)

        /**
         * This method returns the first argument it receives.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Util
         * @param {*} value Any value.
         * @returns {*} Returns `value`.
         * @example
         *
         * var object = { 'a': 1 };
         *
         * console.log(_.identity(object) === object);
         * // => true
         */
        function identity(value) {
          return value
        }

        /**
         * Creates a function that invokes `func` with the arguments of the created
         * function. If `func` is a property name, the created function returns the
         * property value for a given element. If `func` is an array or object, the
         * created function returns `true` for elements that contain the equivalent
         * source properties, otherwise it returns `false`.
         *
         * @static
         * @since 4.0.0
         * @memberOf _
         * @category Util
         * @param {*} [func=_.identity] The value to convert to a callback.
         * @returns {Function} Returns the callback.
         * @example
         *
         * var users = [
         *   { 'user': 'barney', 'age': 36, 'active': true },
         *   { 'user': 'fred',   'age': 40, 'active': false }
         * ];
         *
         * // The `_.matches` iteratee shorthand.
         * _.filter(users, _.iteratee({ 'user': 'barney', 'active': true }));
         * // => [{ 'user': 'barney', 'age': 36, 'active': true }]
         *
         * // The `_.matchesProperty` iteratee shorthand.
         * _.filter(users, _.iteratee(['user', 'fred']));
         * // => [{ 'user': 'fred', 'age': 40 }]
         *
         * // The `_.property` iteratee shorthand.
         * _.map(users, _.iteratee('user'));
         * // => ['barney', 'fred']
         *
         * // Create custom iteratee shorthands.
         * _.iteratee = _.wrap(_.iteratee, function(iteratee, func) {
         *   return !_.isRegExp(func) ? iteratee(func) : function(string) {
         *     return func.test(string);
         *   };
         * });
         *
         * _.filter(['abc', 'def'], /ef/);
         * // => ['def']
         */
        function iteratee(func) {
          return baseIteratee(
            typeof func == "function" ? func : baseClone(func, CLONE_DEEP_FLAG)
          )
        }

        /**
         * Creates a function that performs a partial deep comparison between a given
         * object and `source`, returning `true` if the given object has equivalent
         * property values, else `false`.
         *
         * **Note:** The created function is equivalent to `_.isMatch` with `source`
         * partially applied.
         *
         * Partial comparisons will match empty array and empty object `source`
         * values against any array or object value, respectively. See `_.isEqual`
         * for a list of supported value comparisons.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Util
         * @param {Object} source The object of property values to match.
         * @returns {Function} Returns the new spec function.
         * @example
         *
         * var objects = [
         *   { 'a': 1, 'b': 2, 'c': 3 },
         *   { 'a': 4, 'b': 5, 'c': 6 }
         * ];
         *
         * _.filter(objects, _.matches({ 'a': 4, 'c': 6 }));
         * // => [{ 'a': 4, 'b': 5, 'c': 6 }]
         */
        function matches(source) {
          return baseMatches(baseClone(source, CLONE_DEEP_FLAG))
        }

        /**
         * Creates a function that performs a partial deep comparison between the
         * value at `path` of a given object to `srcValue`, returning `true` if the
         * object value is equivalent, else `false`.
         *
         * **Note:** Partial comparisons will match empty array and empty object
         * `srcValue` values against any array or object value, respectively. See
         * `_.isEqual` for a list of supported value comparisons.
         *
         * @static
         * @memberOf _
         * @since 3.2.0
         * @category Util
         * @param {Array|string} path The path of the property to get.
         * @param {*} srcValue The value to match.
         * @returns {Function} Returns the new spec function.
         * @example
         *
         * var objects = [
         *   { 'a': 1, 'b': 2, 'c': 3 },
         *   { 'a': 4, 'b': 5, 'c': 6 }
         * ];
         *
         * _.find(objects, _.matchesProperty('a', 4));
         * // => { 'a': 4, 'b': 5, 'c': 6 }
         */
        function matchesProperty(path, srcValue) {
          return baseMatchesProperty(path, baseClone(srcValue, CLONE_DEEP_FLAG))
        }

        /**
         * Creates a function that invokes the method at `path` of a given object.
         * Any additional arguments are provided to the invoked method.
         *
         * @static
         * @memberOf _
         * @since 3.7.0
         * @category Util
         * @param {Array|string} path The path of the method to invoke.
         * @param {...*} [args] The arguments to invoke the method with.
         * @returns {Function} Returns the new invoker function.
         * @example
         *
         * var objects = [
         *   { 'a': { 'b': _.constant(2) } },
         *   { 'a': { 'b': _.constant(1) } }
         * ];
         *
         * _.map(objects, _.method('a.b'));
         * // => [2, 1]
         *
         * _.map(objects, _.method(['a', 'b']));
         * // => [2, 1]
         */
        var method = baseRest(function(path, args) {
          return function(object) {
            return baseInvoke(object, path, args)
          }
        })

        /**
         * The opposite of `_.method`; this method creates a function that invokes
         * the method at a given path of `object`. Any additional arguments are
         * provided to the invoked method.
         *
         * @static
         * @memberOf _
         * @since 3.7.0
         * @category Util
         * @param {Object} object The object to query.
         * @param {...*} [args] The arguments to invoke the method with.
         * @returns {Function} Returns the new invoker function.
         * @example
         *
         * var array = _.times(3, _.constant),
         *     object = { 'a': array, 'b': array, 'c': array };
         *
         * _.map(['a[2]', 'c[0]'], _.methodOf(object));
         * // => [2, 0]
         *
         * _.map([['a', '2'], ['c', '0']], _.methodOf(object));
         * // => [2, 0]
         */
        var methodOf = baseRest(function(object, args) {
          return function(path) {
            return baseInvoke(object, path, args)
          }
        })

        /**
         * Adds all own enumerable string keyed function properties of a source
         * object to the destination object. If `object` is a function, then methods
         * are added to its prototype as well.
         *
         * **Note:** Use `_.runInContext` to create a pristine `lodash` function to
         * avoid conflicts caused by modifying the original.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Util
         * @param {Function|Object} [object=lodash] The destination object.
         * @param {Object} source The object of functions to add.
         * @param {Object} [options={}] The options object.
         * @param {boolean} [options.chain=true] Specify whether mixins are chainable.
         * @returns {Function|Object} Returns `object`.
         * @example
         *
         * function vowels(string) {
         *   return _.filter(string, function(v) {
         *     return /[aeiou]/i.test(v);
         *   });
         * }
         *
         * _.mixin({ 'vowels': vowels });
         * _.vowels('fred');
         * // => ['e']
         *
         * _('fred').vowels().value();
         * // => ['e']
         *
         * _.mixin({ 'vowels': vowels }, { 'chain': false });
         * _('fred').vowels();
         * // => ['e']
         */
        function mixin(object, source, options) {
          var props = keys(source),
            methodNames = baseFunctions(source, props)

          if (
            options == null &&
            !(isObject(source) && (methodNames.length || !props.length))
          ) {
            options = source
            source = object
            object = this
            methodNames = baseFunctions(source, keys(source))
          }
          var chain =
              !(isObject(options) && "chain" in options) || !!options.chain,
            isFunc = isFunction(object)

          arrayEach(methodNames, function(methodName) {
            var func = source[methodName]
            object[methodName] = func
            if (isFunc) {
              object.prototype[methodName] = function() {
                var chainAll = this.__chain__
                if (chain || chainAll) {
                  var result = object(this.__wrapped__),
                    actions = (result.__actions__ = copyArray(this.__actions__))

                  actions.push({ func: func, args: arguments, thisArg: object })
                  result.__chain__ = chainAll
                  return result
                }
                return func.apply(object, arrayPush([this.value()], arguments))
              }
            }
          })

          return object
        }

        /**
         * Reverts the `_` variable to its previous value and returns a reference to
         * the `lodash` function.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Util
         * @returns {Function} Returns the `lodash` function.
         * @example
         *
         * var lodash = _.noConflict();
         */
        function noConflict() {
          if (root._ === this) {
            root._ = oldDash
          }
          return this
        }

        /**
         * This method returns `undefined`.
         *
         * @static
         * @memberOf _
         * @since 2.3.0
         * @category Util
         * @example
         *
         * _.times(2, _.noop);
         * // => [undefined, undefined]
         */
        function noop() {
          // No operation performed.
        }

        /**
         * Creates a function that gets the argument at index `n`. If `n` is negative,
         * the nth argument from the end is returned.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Util
         * @param {number} [n=0] The index of the argument to return.
         * @returns {Function} Returns the new pass-thru function.
         * @example
         *
         * var func = _.nthArg(1);
         * func('a', 'b', 'c', 'd');
         * // => 'b'
         *
         * var func = _.nthArg(-2);
         * func('a', 'b', 'c', 'd');
         * // => 'c'
         */
        function nthArg(n) {
          n = toInteger(n)
          return baseRest(function(args) {
            return baseNth(args, n)
          })
        }

        /**
         * Creates a function that invokes `iteratees` with the arguments it receives
         * and returns their results.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Util
         * @param {...(Function|Function[])} [iteratees=[_.identity]]
         *  The iteratees to invoke.
         * @returns {Function} Returns the new function.
         * @example
         *
         * var func = _.over([Math.max, Math.min]);
         *
         * func(1, 2, 3, 4);
         * // => [4, 1]
         */
        var over = createOver(arrayMap)

        /**
         * Creates a function that checks if **all** of the `predicates` return
         * truthy when invoked with the arguments it receives.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Util
         * @param {...(Function|Function[])} [predicates=[_.identity]]
         *  The predicates to check.
         * @returns {Function} Returns the new function.
         * @example
         *
         * var func = _.overEvery([Boolean, isFinite]);
         *
         * func('1');
         * // => true
         *
         * func(null);
         * // => false
         *
         * func(NaN);
         * // => false
         */
        var overEvery = createOver(arrayEvery)

        /**
         * Creates a function that checks if **any** of the `predicates` return
         * truthy when invoked with the arguments it receives.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Util
         * @param {...(Function|Function[])} [predicates=[_.identity]]
         *  The predicates to check.
         * @returns {Function} Returns the new function.
         * @example
         *
         * var func = _.overSome([Boolean, isFinite]);
         *
         * func('1');
         * // => true
         *
         * func(null);
         * // => true
         *
         * func(NaN);
         * // => false
         */
        var overSome = createOver(arraySome)

        /**
         * Creates a function that returns the value at `path` of a given object.
         *
         * @static
         * @memberOf _
         * @since 2.4.0
         * @category Util
         * @param {Array|string} path The path of the property to get.
         * @returns {Function} Returns the new accessor function.
         * @example
         *
         * var objects = [
         *   { 'a': { 'b': 2 } },
         *   { 'a': { 'b': 1 } }
         * ];
         *
         * _.map(objects, _.property('a.b'));
         * // => [2, 1]
         *
         * _.map(_.sortBy(objects, _.property(['a', 'b'])), 'a.b');
         * // => [1, 2]
         */
        function property(path) {
          return isKey(path)
            ? baseProperty(toKey(path))
            : basePropertyDeep(path)
        }

        /**
         * The opposite of `_.property`; this method creates a function that returns
         * the value at a given path of `object`.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Util
         * @param {Object} object The object to query.
         * @returns {Function} Returns the new accessor function.
         * @example
         *
         * var array = [0, 1, 2],
         *     object = { 'a': array, 'b': array, 'c': array };
         *
         * _.map(['a[2]', 'c[0]'], _.propertyOf(object));
         * // => [2, 0]
         *
         * _.map([['a', '2'], ['c', '0']], _.propertyOf(object));
         * // => [2, 0]
         */
        function propertyOf(object) {
          return function(path) {
            return object == null ? undefined$1 : baseGet(object, path)
          }
        }

        /**
         * Creates an array of numbers (positive and/or negative) progressing from
         * `start` up to, but not including, `end`. A step of `-1` is used if a negative
         * `start` is specified without an `end` or `step`. If `end` is not specified,
         * it's set to `start` with `start` then set to `0`.
         *
         * **Note:** JavaScript follows the IEEE-754 standard for resolving
         * floating-point values which can produce unexpected results.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Util
         * @param {number} [start=0] The start of the range.
         * @param {number} end The end of the range.
         * @param {number} [step=1] The value to increment or decrement by.
         * @returns {Array} Returns the range of numbers.
         * @see _.inRange, _.rangeRight
         * @example
         *
         * _.range(4);
         * // => [0, 1, 2, 3]
         *
         * _.range(-4);
         * // => [0, -1, -2, -3]
         *
         * _.range(1, 5);
         * // => [1, 2, 3, 4]
         *
         * _.range(0, 20, 5);
         * // => [0, 5, 10, 15]
         *
         * _.range(0, -4, -1);
         * // => [0, -1, -2, -3]
         *
         * _.range(1, 4, 0);
         * // => [1, 1, 1]
         *
         * _.range(0);
         * // => []
         */
        var range = createRange()

        /**
         * This method is like `_.range` except that it populates values in
         * descending order.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Util
         * @param {number} [start=0] The start of the range.
         * @param {number} end The end of the range.
         * @param {number} [step=1] The value to increment or decrement by.
         * @returns {Array} Returns the range of numbers.
         * @see _.inRange, _.range
         * @example
         *
         * _.rangeRight(4);
         * // => [3, 2, 1, 0]
         *
         * _.rangeRight(-4);
         * // => [-3, -2, -1, 0]
         *
         * _.rangeRight(1, 5);
         * // => [4, 3, 2, 1]
         *
         * _.rangeRight(0, 20, 5);
         * // => [15, 10, 5, 0]
         *
         * _.rangeRight(0, -4, -1);
         * // => [-3, -2, -1, 0]
         *
         * _.rangeRight(1, 4, 0);
         * // => [1, 1, 1]
         *
         * _.rangeRight(0);
         * // => []
         */
        var rangeRight = createRange(true)

        /**
         * This method returns a new empty array.
         *
         * @static
         * @memberOf _
         * @since 4.13.0
         * @category Util
         * @returns {Array} Returns the new empty array.
         * @example
         *
         * var arrays = _.times(2, _.stubArray);
         *
         * console.log(arrays);
         * // => [[], []]
         *
         * console.log(arrays[0] === arrays[1]);
         * // => false
         */
        function stubArray() {
          return []
        }

        /**
         * This method returns `false`.
         *
         * @static
         * @memberOf _
         * @since 4.13.0
         * @category Util
         * @returns {boolean} Returns `false`.
         * @example
         *
         * _.times(2, _.stubFalse);
         * // => [false, false]
         */
        function stubFalse() {
          return false
        }

        /**
         * This method returns a new empty object.
         *
         * @static
         * @memberOf _
         * @since 4.13.0
         * @category Util
         * @returns {Object} Returns the new empty object.
         * @example
         *
         * var objects = _.times(2, _.stubObject);
         *
         * console.log(objects);
         * // => [{}, {}]
         *
         * console.log(objects[0] === objects[1]);
         * // => false
         */
        function stubObject() {
          return {}
        }

        /**
         * This method returns an empty string.
         *
         * @static
         * @memberOf _
         * @since 4.13.0
         * @category Util
         * @returns {string} Returns the empty string.
         * @example
         *
         * _.times(2, _.stubString);
         * // => ['', '']
         */
        function stubString() {
          return ""
        }

        /**
         * This method returns `true`.
         *
         * @static
         * @memberOf _
         * @since 4.13.0
         * @category Util
         * @returns {boolean} Returns `true`.
         * @example
         *
         * _.times(2, _.stubTrue);
         * // => [true, true]
         */
        function stubTrue() {
          return true
        }

        /**
         * Invokes the iteratee `n` times, returning an array of the results of
         * each invocation. The iteratee is invoked with one argument; (index).
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Util
         * @param {number} n The number of times to invoke `iteratee`.
         * @param {Function} [iteratee=_.identity] The function invoked per iteration.
         * @returns {Array} Returns the array of results.
         * @example
         *
         * _.times(3, String);
         * // => ['0', '1', '2']
         *
         *  _.times(4, _.constant(0));
         * // => [0, 0, 0, 0]
         */
        function times(n, iteratee) {
          n = toInteger(n)
          if (n < 1 || n > MAX_SAFE_INTEGER) {
            return []
          }
          var index = MAX_ARRAY_LENGTH,
            length = nativeMin(n, MAX_ARRAY_LENGTH)

          iteratee = getIteratee(iteratee)
          n -= MAX_ARRAY_LENGTH

          var result = baseTimes(length, iteratee)
          while (++index < n) {
            iteratee(index)
          }
          return result
        }

        /**
         * Converts `value` to a property path array.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Util
         * @param {*} value The value to convert.
         * @returns {Array} Returns the new property path array.
         * @example
         *
         * _.toPath('a.b.c');
         * // => ['a', 'b', 'c']
         *
         * _.toPath('a[0].b.c');
         * // => ['a', '0', 'b', 'c']
         */
        function toPath(value) {
          if (isArray(value)) {
            return arrayMap(value, toKey)
          }
          return isSymbol(value)
            ? [value]
            : copyArray(stringToPath(toString(value)))
        }

        /**
         * Generates a unique ID. If `prefix` is given, the ID is appended to it.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Util
         * @param {string} [prefix=''] The value to prefix the ID with.
         * @returns {string} Returns the unique ID.
         * @example
         *
         * _.uniqueId('contact_');
         * // => 'contact_104'
         *
         * _.uniqueId();
         * // => '105'
         */
        function uniqueId(prefix) {
          var id = ++idCounter
          return toString(prefix) + id
        }

        /*------------------------------------------------------------------------*/

        /**
         * Adds two numbers.
         *
         * @static
         * @memberOf _
         * @since 3.4.0
         * @category Math
         * @param {number} augend The first number in an addition.
         * @param {number} addend The second number in an addition.
         * @returns {number} Returns the total.
         * @example
         *
         * _.add(6, 4);
         * // => 10
         */
        var add = createMathOperation(function(augend, addend) {
          return augend + addend
        }, 0)

        /**
         * Computes `number` rounded up to `precision`.
         *
         * @static
         * @memberOf _
         * @since 3.10.0
         * @category Math
         * @param {number} number The number to round up.
         * @param {number} [precision=0] The precision to round up to.
         * @returns {number} Returns the rounded up number.
         * @example
         *
         * _.ceil(4.006);
         * // => 5
         *
         * _.ceil(6.004, 2);
         * // => 6.01
         *
         * _.ceil(6040, -2);
         * // => 6100
         */
        var ceil = createRound("ceil")

        /**
         * Divide two numbers.
         *
         * @static
         * @memberOf _
         * @since 4.7.0
         * @category Math
         * @param {number} dividend The first number in a division.
         * @param {number} divisor The second number in a division.
         * @returns {number} Returns the quotient.
         * @example
         *
         * _.divide(6, 4);
         * // => 1.5
         */
        var divide = createMathOperation(function(dividend, divisor) {
          return dividend / divisor
        }, 1)

        /**
         * Computes `number` rounded down to `precision`.
         *
         * @static
         * @memberOf _
         * @since 3.10.0
         * @category Math
         * @param {number} number The number to round down.
         * @param {number} [precision=0] The precision to round down to.
         * @returns {number} Returns the rounded down number.
         * @example
         *
         * _.floor(4.006);
         * // => 4
         *
         * _.floor(0.046, 2);
         * // => 0.04
         *
         * _.floor(4060, -2);
         * // => 4000
         */
        var floor = createRound("floor")

        /**
         * Computes the maximum value of `array`. If `array` is empty or falsey,
         * `undefined` is returned.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Math
         * @param {Array} array The array to iterate over.
         * @returns {*} Returns the maximum value.
         * @example
         *
         * _.max([4, 2, 8, 6]);
         * // => 8
         *
         * _.max([]);
         * // => undefined
         */
        function max(array) {
          return array && array.length
            ? baseExtremum(array, identity, baseGt)
            : undefined$1
        }

        /**
         * This method is like `_.max` except that it accepts `iteratee` which is
         * invoked for each element in `array` to generate the criterion by which
         * the value is ranked. The iteratee is invoked with one argument: (value).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Math
         * @param {Array} array The array to iterate over.
         * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
         * @returns {*} Returns the maximum value.
         * @example
         *
         * var objects = [{ 'n': 1 }, { 'n': 2 }];
         *
         * _.maxBy(objects, function(o) { return o.n; });
         * // => { 'n': 2 }
         *
         * // The `_.property` iteratee shorthand.
         * _.maxBy(objects, 'n');
         * // => { 'n': 2 }
         */
        function maxBy(array, iteratee) {
          return array && array.length
            ? baseExtremum(array, getIteratee(iteratee, 2), baseGt)
            : undefined$1
        }

        /**
         * Computes the mean of the values in `array`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Math
         * @param {Array} array The array to iterate over.
         * @returns {number} Returns the mean.
         * @example
         *
         * _.mean([4, 2, 8, 6]);
         * // => 5
         */
        function mean(array) {
          return baseMean(array, identity)
        }

        /**
         * This method is like `_.mean` except that it accepts `iteratee` which is
         * invoked for each element in `array` to generate the value to be averaged.
         * The iteratee is invoked with one argument: (value).
         *
         * @static
         * @memberOf _
         * @since 4.7.0
         * @category Math
         * @param {Array} array The array to iterate over.
         * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
         * @returns {number} Returns the mean.
         * @example
         *
         * var objects = [{ 'n': 4 }, { 'n': 2 }, { 'n': 8 }, { 'n': 6 }];
         *
         * _.meanBy(objects, function(o) { return o.n; });
         * // => 5
         *
         * // The `_.property` iteratee shorthand.
         * _.meanBy(objects, 'n');
         * // => 5
         */
        function meanBy(array, iteratee) {
          return baseMean(array, getIteratee(iteratee, 2))
        }

        /**
         * Computes the minimum value of `array`. If `array` is empty or falsey,
         * `undefined` is returned.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Math
         * @param {Array} array The array to iterate over.
         * @returns {*} Returns the minimum value.
         * @example
         *
         * _.min([4, 2, 8, 6]);
         * // => 2
         *
         * _.min([]);
         * // => undefined
         */
        function min(array) {
          return array && array.length
            ? baseExtremum(array, identity, baseLt)
            : undefined$1
        }

        /**
         * This method is like `_.min` except that it accepts `iteratee` which is
         * invoked for each element in `array` to generate the criterion by which
         * the value is ranked. The iteratee is invoked with one argument: (value).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Math
         * @param {Array} array The array to iterate over.
         * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
         * @returns {*} Returns the minimum value.
         * @example
         *
         * var objects = [{ 'n': 1 }, { 'n': 2 }];
         *
         * _.minBy(objects, function(o) { return o.n; });
         * // => { 'n': 1 }
         *
         * // The `_.property` iteratee shorthand.
         * _.minBy(objects, 'n');
         * // => { 'n': 1 }
         */
        function minBy(array, iteratee) {
          return array && array.length
            ? baseExtremum(array, getIteratee(iteratee, 2), baseLt)
            : undefined$1
        }

        /**
         * Multiply two numbers.
         *
         * @static
         * @memberOf _
         * @since 4.7.0
         * @category Math
         * @param {number} multiplier The first number in a multiplication.
         * @param {number} multiplicand The second number in a multiplication.
         * @returns {number} Returns the product.
         * @example
         *
         * _.multiply(6, 4);
         * // => 24
         */
        var multiply = createMathOperation(function(multiplier, multiplicand) {
          return multiplier * multiplicand
        }, 1)

        /**
         * Computes `number` rounded to `precision`.
         *
         * @static
         * @memberOf _
         * @since 3.10.0
         * @category Math
         * @param {number} number The number to round.
         * @param {number} [precision=0] The precision to round to.
         * @returns {number} Returns the rounded number.
         * @example
         *
         * _.round(4.006);
         * // => 4
         *
         * _.round(4.006, 2);
         * // => 4.01
         *
         * _.round(4060, -2);
         * // => 4100
         */
        var round = createRound("round")

        /**
         * Subtract two numbers.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Math
         * @param {number} minuend The first number in a subtraction.
         * @param {number} subtrahend The second number in a subtraction.
         * @returns {number} Returns the difference.
         * @example
         *
         * _.subtract(6, 4);
         * // => 2
         */
        var subtract = createMathOperation(function(minuend, subtrahend) {
          return minuend - subtrahend
        }, 0)

        /**
         * Computes the sum of the values in `array`.
         *
         * @static
         * @memberOf _
         * @since 3.4.0
         * @category Math
         * @param {Array} array The array to iterate over.
         * @returns {number} Returns the sum.
         * @example
         *
         * _.sum([4, 2, 8, 6]);
         * // => 20
         */
        function sum(array) {
          return array && array.length ? baseSum(array, identity) : 0
        }

        /**
         * This method is like `_.sum` except that it accepts `iteratee` which is
         * invoked for each element in `array` to generate the value to be summed.
         * The iteratee is invoked with one argument: (value).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Math
         * @param {Array} array The array to iterate over.
         * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
         * @returns {number} Returns the sum.
         * @example
         *
         * var objects = [{ 'n': 4 }, { 'n': 2 }, { 'n': 8 }, { 'n': 6 }];
         *
         * _.sumBy(objects, function(o) { return o.n; });
         * // => 20
         *
         * // The `_.property` iteratee shorthand.
         * _.sumBy(objects, 'n');
         * // => 20
         */
        function sumBy(array, iteratee) {
          return array && array.length
            ? baseSum(array, getIteratee(iteratee, 2))
            : 0
        }

        /*------------------------------------------------------------------------*/

        // Add methods that return wrapped values in chain sequences.
        lodash.after = after
        lodash.ary = ary
        lodash.assign = assign
        lodash.assignIn = assignIn
        lodash.assignInWith = assignInWith
        lodash.assignWith = assignWith
        lodash.at = at
        lodash.before = before
        lodash.bind = bind
        lodash.bindAll = bindAll
        lodash.bindKey = bindKey
        lodash.castArray = castArray
        lodash.chain = chain
        lodash.chunk = chunk
        lodash.compact = compact
        lodash.concat = concat
        lodash.cond = cond
        lodash.conforms = conforms
        lodash.constant = constant
        lodash.countBy = countBy
        lodash.create = create
        lodash.curry = curry
        lodash.curryRight = curryRight
        lodash.debounce = debounce
        lodash.defaults = defaults
        lodash.defaultsDeep = defaultsDeep
        lodash.defer = defer
        lodash.delay = delay
        lodash.difference = difference
        lodash.differenceBy = differenceBy
        lodash.differenceWith = differenceWith
        lodash.drop = drop
        lodash.dropRight = dropRight
        lodash.dropRightWhile = dropRightWhile
        lodash.dropWhile = dropWhile
        lodash.fill = fill
        lodash.filter = filter
        lodash.flatMap = flatMap
        lodash.flatMapDeep = flatMapDeep
        lodash.flatMapDepth = flatMapDepth
        lodash.flatten = flatten
        lodash.flattenDeep = flattenDeep
        lodash.flattenDepth = flattenDepth
        lodash.flip = flip
        lodash.flow = flow
        lodash.flowRight = flowRight
        lodash.fromPairs = fromPairs
        lodash.functions = functions
        lodash.functionsIn = functionsIn
        lodash.groupBy = groupBy
        lodash.initial = initial
        lodash.intersection = intersection
        lodash.intersectionBy = intersectionBy
        lodash.intersectionWith = intersectionWith
        lodash.invert = invert
        lodash.invertBy = invertBy
        lodash.invokeMap = invokeMap
        lodash.iteratee = iteratee
        lodash.keyBy = keyBy
        lodash.keys = keys
        lodash.keysIn = keysIn
        lodash.map = map
        lodash.mapKeys = mapKeys
        lodash.mapValues = mapValues
        lodash.matches = matches
        lodash.matchesProperty = matchesProperty
        lodash.memoize = memoize
        lodash.merge = merge
        lodash.mergeWith = mergeWith
        lodash.method = method
        lodash.methodOf = methodOf
        lodash.mixin = mixin
        lodash.negate = negate
        lodash.nthArg = nthArg
        lodash.omit = omit
        lodash.omitBy = omitBy
        lodash.once = once
        lodash.orderBy = orderBy
        lodash.over = over
        lodash.overArgs = overArgs
        lodash.overEvery = overEvery
        lodash.overSome = overSome
        lodash.partial = partial
        lodash.partialRight = partialRight
        lodash.partition = partition
        lodash.pick = pick
        lodash.pickBy = pickBy
        lodash.property = property
        lodash.propertyOf = propertyOf
        lodash.pull = pull
        lodash.pullAll = pullAll
        lodash.pullAllBy = pullAllBy
        lodash.pullAllWith = pullAllWith
        lodash.pullAt = pullAt
        lodash.range = range
        lodash.rangeRight = rangeRight
        lodash.rearg = rearg
        lodash.reject = reject
        lodash.remove = remove
        lodash.rest = rest
        lodash.reverse = reverse
        lodash.sampleSize = sampleSize
        lodash.set = set
        lodash.setWith = setWith
        lodash.shuffle = shuffle
        lodash.slice = slice
        lodash.sortBy = sortBy
        lodash.sortedUniq = sortedUniq
        lodash.sortedUniqBy = sortedUniqBy
        lodash.split = split
        lodash.spread = spread
        lodash.tail = tail
        lodash.take = take
        lodash.takeRight = takeRight
        lodash.takeRightWhile = takeRightWhile
        lodash.takeWhile = takeWhile
        lodash.tap = tap
        lodash.throttle = throttle
        lodash.thru = thru
        lodash.toArray = toArray
        lodash.toPairs = toPairs
        lodash.toPairsIn = toPairsIn
        lodash.toPath = toPath
        lodash.toPlainObject = toPlainObject
        lodash.transform = transform
        lodash.unary = unary
        lodash.union = union
        lodash.unionBy = unionBy
        lodash.unionWith = unionWith
        lodash.uniq = uniq
        lodash.uniqBy = uniqBy
        lodash.uniqWith = uniqWith
        lodash.unset = unset
        lodash.unzip = unzip
        lodash.unzipWith = unzipWith
        lodash.update = update
        lodash.updateWith = updateWith
        lodash.values = values
        lodash.valuesIn = valuesIn
        lodash.without = without
        lodash.words = words
        lodash.wrap = wrap
        lodash.xor = xor
        lodash.xorBy = xorBy
        lodash.xorWith = xorWith
        lodash.zip = zip
        lodash.zipObject = zipObject
        lodash.zipObjectDeep = zipObjectDeep
        lodash.zipWith = zipWith

        // Add aliases.
        lodash.entries = toPairs
        lodash.entriesIn = toPairsIn
        lodash.extend = assignIn
        lodash.extendWith = assignInWith

        // Add methods to `lodash.prototype`.
        mixin(lodash, lodash)

        /*------------------------------------------------------------------------*/

        // Add methods that return unwrapped values in chain sequences.
        lodash.add = add
        lodash.attempt = attempt
        lodash.camelCase = camelCase
        lodash.capitalize = capitalize
        lodash.ceil = ceil
        lodash.clamp = clamp
        lodash.clone = clone
        lodash.cloneDeep = cloneDeep
        lodash.cloneDeepWith = cloneDeepWith
        lodash.cloneWith = cloneWith
        lodash.conformsTo = conformsTo
        lodash.deburr = deburr
        lodash.defaultTo = defaultTo
        lodash.divide = divide
        lodash.endsWith = endsWith
        lodash.eq = eq
        lodash.escape = escape
        lodash.escapeRegExp = escapeRegExp
        lodash.every = every
        lodash.find = find
        lodash.findIndex = findIndex
        lodash.findKey = findKey
        lodash.findLast = findLast
        lodash.findLastIndex = findLastIndex
        lodash.findLastKey = findLastKey
        lodash.floor = floor
        lodash.forEach = forEach
        lodash.forEachRight = forEachRight
        lodash.forIn = forIn
        lodash.forInRight = forInRight
        lodash.forOwn = forOwn
        lodash.forOwnRight = forOwnRight
        lodash.get = get
        lodash.gt = gt
        lodash.gte = gte
        lodash.has = has
        lodash.hasIn = hasIn
        lodash.head = head
        lodash.identity = identity
        lodash.includes = includes
        lodash.indexOf = indexOf
        lodash.inRange = inRange
        lodash.invoke = invoke
        lodash.isArguments = isArguments
        lodash.isArray = isArray
        lodash.isArrayBuffer = isArrayBuffer
        lodash.isArrayLike = isArrayLike
        lodash.isArrayLikeObject = isArrayLikeObject
        lodash.isBoolean = isBoolean
        lodash.isBuffer = isBuffer
        lodash.isDate = isDate
        lodash.isElement = isElement
        lodash.isEmpty = isEmpty
        lodash.isEqual = isEqual
        lodash.isEqualWith = isEqualWith
        lodash.isError = isError
        lodash.isFinite = isFinite
        lodash.isFunction = isFunction
        lodash.isInteger = isInteger
        lodash.isLength = isLength
        lodash.isMap = isMap
        lodash.isMatch = isMatch
        lodash.isMatchWith = isMatchWith
        lodash.isNaN = isNaN
        lodash.isNative = isNative
        lodash.isNil = isNil
        lodash.isNull = isNull
        lodash.isNumber = isNumber
        lodash.isObject = isObject
        lodash.isObjectLike = isObjectLike
        lodash.isPlainObject = isPlainObject
        lodash.isRegExp = isRegExp
        lodash.isSafeInteger = isSafeInteger
        lodash.isSet = isSet
        lodash.isString = isString
        lodash.isSymbol = isSymbol
        lodash.isTypedArray = isTypedArray
        lodash.isUndefined = isUndefined
        lodash.isWeakMap = isWeakMap
        lodash.isWeakSet = isWeakSet
        lodash.join = join
        lodash.kebabCase = kebabCase
        lodash.last = last
        lodash.lastIndexOf = lastIndexOf
        lodash.lowerCase = lowerCase
        lodash.lowerFirst = lowerFirst
        lodash.lt = lt
        lodash.lte = lte
        lodash.max = max
        lodash.maxBy = maxBy
        lodash.mean = mean
        lodash.meanBy = meanBy
        lodash.min = min
        lodash.minBy = minBy
        lodash.stubArray = stubArray
        lodash.stubFalse = stubFalse
        lodash.stubObject = stubObject
        lodash.stubString = stubString
        lodash.stubTrue = stubTrue
        lodash.multiply = multiply
        lodash.nth = nth
        lodash.noConflict = noConflict
        lodash.noop = noop
        lodash.now = now
        lodash.pad = pad
        lodash.padEnd = padEnd
        lodash.padStart = padStart
        lodash.parseInt = parseInt
        lodash.random = random
        lodash.reduce = reduce
        lodash.reduceRight = reduceRight
        lodash.repeat = repeat
        lodash.replace = replace
        lodash.result = result
        lodash.round = round
        lodash.runInContext = runInContext
        lodash.sample = sample
        lodash.size = size
        lodash.snakeCase = snakeCase
        lodash.some = some
        lodash.sortedIndex = sortedIndex
        lodash.sortedIndexBy = sortedIndexBy
        lodash.sortedIndexOf = sortedIndexOf
        lodash.sortedLastIndex = sortedLastIndex
        lodash.sortedLastIndexBy = sortedLastIndexBy
        lodash.sortedLastIndexOf = sortedLastIndexOf
        lodash.startCase = startCase
        lodash.startsWith = startsWith
        lodash.subtract = subtract
        lodash.sum = sum
        lodash.sumBy = sumBy
        lodash.template = template
        lodash.times = times
        lodash.toFinite = toFinite
        lodash.toInteger = toInteger
        lodash.toLength = toLength
        lodash.toLower = toLower
        lodash.toNumber = toNumber
        lodash.toSafeInteger = toSafeInteger
        lodash.toString = toString
        lodash.toUpper = toUpper
        lodash.trim = trim
        lodash.trimEnd = trimEnd
        lodash.trimStart = trimStart
        lodash.truncate = truncate
        lodash.unescape = unescape
        lodash.uniqueId = uniqueId
        lodash.upperCase = upperCase
        lodash.upperFirst = upperFirst

        // Add aliases.
        lodash.each = forEach
        lodash.eachRight = forEachRight
        lodash.first = head

        mixin(
          lodash,
          (function() {
            var source = {}
            baseForOwn(lodash, function(func, methodName) {
              if (!hasOwnProperty.call(lodash.prototype, methodName)) {
                source[methodName] = func
              }
            })
            return source
          })(),
          { chain: false }
        )

        /*------------------------------------------------------------------------*/

        /**
         * The semantic version number.
         *
         * @static
         * @memberOf _
         * @type {string}
         */
        lodash.VERSION = VERSION

        // Assign default placeholders.
        arrayEach(
          ["bind", "bindKey", "curry", "curryRight", "partial", "partialRight"],
          function(methodName) {
            lodash[methodName].placeholder = lodash
          }
        )

        // Add `LazyWrapper` methods for `_.drop` and `_.take` variants.
        arrayEach(["drop", "take"], function(methodName, index) {
          LazyWrapper.prototype[methodName] = function(n) {
            n = n === undefined$1 ? 1 : nativeMax(toInteger(n), 0)

            var result =
              this.__filtered__ && !index ? new LazyWrapper(this) : this.clone()

            if (result.__filtered__) {
              result.__takeCount__ = nativeMin(n, result.__takeCount__)
            } else {
              result.__views__.push({
                size: nativeMin(n, MAX_ARRAY_LENGTH),
                type: methodName + (result.__dir__ < 0 ? "Right" : ""),
              })
            }
            return result
          }

          LazyWrapper.prototype[methodName + "Right"] = function(n) {
            return this.reverse()
              [methodName](n)
              .reverse()
          }
        })

        // Add `LazyWrapper` methods that accept an `iteratee` value.
        arrayEach(["filter", "map", "takeWhile"], function(methodName, index) {
          var type = index + 1,
            isFilter = type == LAZY_FILTER_FLAG || type == LAZY_WHILE_FLAG

          LazyWrapper.prototype[methodName] = function(iteratee) {
            var result = this.clone()
            result.__iteratees__.push({
              iteratee: getIteratee(iteratee, 3),
              type: type,
            })
            result.__filtered__ = result.__filtered__ || isFilter
            return result
          }
        })

        // Add `LazyWrapper` methods for `_.head` and `_.last`.
        arrayEach(["head", "last"], function(methodName, index) {
          var takeName = "take" + (index ? "Right" : "")

          LazyWrapper.prototype[methodName] = function() {
            return this[takeName](1).value()[0]
          }
        })

        // Add `LazyWrapper` methods for `_.initial` and `_.tail`.
        arrayEach(["initial", "tail"], function(methodName, index) {
          var dropName = "drop" + (index ? "" : "Right")

          LazyWrapper.prototype[methodName] = function() {
            return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1)
          }
        })

        LazyWrapper.prototype.compact = function() {
          return this.filter(identity)
        }

        LazyWrapper.prototype.find = function(predicate) {
          return this.filter(predicate).head()
        }

        LazyWrapper.prototype.findLast = function(predicate) {
          return this.reverse().find(predicate)
        }

        LazyWrapper.prototype.invokeMap = baseRest(function(path, args) {
          if (typeof path == "function") {
            return new LazyWrapper(this)
          }
          return this.map(function(value) {
            return baseInvoke(value, path, args)
          })
        })

        LazyWrapper.prototype.reject = function(predicate) {
          return this.filter(negate(getIteratee(predicate)))
        }

        LazyWrapper.prototype.slice = function(start, end) {
          start = toInteger(start)

          var result = this
          if (result.__filtered__ && (start > 0 || end < 0)) {
            return new LazyWrapper(result)
          }
          if (start < 0) {
            result = result.takeRight(-start)
          } else if (start) {
            result = result.drop(start)
          }
          if (end !== undefined$1) {
            end = toInteger(end)
            result = end < 0 ? result.dropRight(-end) : result.take(end - start)
          }
          return result
        }

        LazyWrapper.prototype.takeRightWhile = function(predicate) {
          return this.reverse()
            .takeWhile(predicate)
            .reverse()
        }

        LazyWrapper.prototype.toArray = function() {
          return this.take(MAX_ARRAY_LENGTH)
        }

        // Add `LazyWrapper` methods to `lodash.prototype`.
        baseForOwn(LazyWrapper.prototype, function(func, methodName) {
          var checkIteratee = /^(?:filter|find|map|reject)|While$/.test(
              methodName
            ),
            isTaker = /^(?:head|last)$/.test(methodName),
            lodashFunc =
              lodash[
                isTaker
                  ? "take" + (methodName == "last" ? "Right" : "")
                  : methodName
              ],
            retUnwrapped = isTaker || /^find/.test(methodName)

          if (!lodashFunc) {
            return
          }
          lodash.prototype[methodName] = function() {
            var value = this.__wrapped__,
              args = isTaker ? [1] : arguments,
              isLazy = value instanceof LazyWrapper,
              iteratee = args[0],
              useLazy = isLazy || isArray(value)

            var interceptor = function(value) {
              var result = lodashFunc.apply(lodash, arrayPush([value], args))
              return isTaker && chainAll ? result[0] : result
            }

            if (
              useLazy &&
              checkIteratee &&
              typeof iteratee == "function" &&
              iteratee.length != 1
            ) {
              // Avoid lazy use if the iteratee has a "length" value other than `1`.
              isLazy = useLazy = false
            }
            var chainAll = this.__chain__,
              isHybrid = !!this.__actions__.length,
              isUnwrapped = retUnwrapped && !chainAll,
              onlyLazy = isLazy && !isHybrid

            if (!retUnwrapped && useLazy) {
              value = onlyLazy ? value : new LazyWrapper(this)
              var result = func.apply(value, args)
              result.__actions__.push({
                func: thru,
                args: [interceptor],
                thisArg: undefined$1,
              })
              return new LodashWrapper(result, chainAll)
            }
            if (isUnwrapped && onlyLazy) {
              return func.apply(this, args)
            }
            result = this.thru(interceptor)
            return isUnwrapped
              ? isTaker
                ? result.value()[0]
                : result.value()
              : result
          }
        })

        // Add `Array` methods to `lodash.prototype`.
        arrayEach(
          ["pop", "push", "shift", "sort", "splice", "unshift"],
          function(methodName) {
            var func = arrayProto[methodName],
              chainName = /^(?:push|sort|unshift)$/.test(methodName)
                ? "tap"
                : "thru",
              retUnwrapped = /^(?:pop|shift)$/.test(methodName)

            lodash.prototype[methodName] = function() {
              var args = arguments
              if (retUnwrapped && !this.__chain__) {
                var value = this.value()
                return func.apply(isArray(value) ? value : [], args)
              }
              return this[chainName](function(value) {
                return func.apply(isArray(value) ? value : [], args)
              })
            }
          }
        )

        // Map minified method names to their real names.
        baseForOwn(LazyWrapper.prototype, function(func, methodName) {
          var lodashFunc = lodash[methodName]
          if (lodashFunc) {
            var key = lodashFunc.name + ""
            if (!hasOwnProperty.call(realNames, key)) {
              realNames[key] = []
            }
            realNames[key].push({ name: methodName, func: lodashFunc })
          }
        })

        realNames[createHybrid(undefined$1, WRAP_BIND_KEY_FLAG).name] = [
          {
            name: "wrapper",
            func: undefined$1,
          },
        ]

        // Add methods to `LazyWrapper`.
        LazyWrapper.prototype.clone = lazyClone
        LazyWrapper.prototype.reverse = lazyReverse
        LazyWrapper.prototype.value = lazyValue

        // Add chain sequence methods to the `lodash` wrapper.
        lodash.prototype.at = wrapperAt
        lodash.prototype.chain = wrapperChain
        lodash.prototype.commit = wrapperCommit
        lodash.prototype.next = wrapperNext
        lodash.prototype.plant = wrapperPlant
        lodash.prototype.reverse = wrapperReverse
        lodash.prototype.toJSON = lodash.prototype.valueOf = lodash.prototype.value = wrapperValue

        // Add lazy aliases.
        lodash.prototype.first = lodash.prototype.head

        if (symIterator) {
          lodash.prototype[symIterator] = wrapperToIterator
        }
        return lodash
      }

      /*--------------------------------------------------------------------------*/

      // Export lodash.
      var _ = runInContext()

      // Some AMD build optimizers, like r.js, check for condition patterns like:
      if (freeModule) {
        // Export for Node.js.
        ;(freeModule.exports = _)._ = _
        // Export for CommonJS support.
        freeExports._ = _
      } else {
        // Export to the global object.
        root._ = _
      }
    }.call(commonjsGlobal))
  })
  var lodash_1 = lodash.flow
  var lodash_2 = lodash.head
  var lodash_3 = lodash.find
  var lodash_4 = lodash.each
  var lodash_5 = lodash.tail
  var lodash_6 = lodash.findIndex
  var lodash_7 = lodash.startsWith
  var lodash_8 = lodash.dropRight
  var lodash_9 = lodash.takeRight
  var lodash_10 = lodash.trim
  var lodash_11 = lodash.split
  var lodash_12 = lodash.replace
  var lodash_13 = lodash.merge
  var lodash_14 = lodash.assign

  const commonPlus = extra => fp_6(["onBegin", "onComplete", "onError"])(extra)

  const common = () => commonPlus([])

  const _events = {
    recordApi: {
      save: commonPlus(["onInvalid", "onRecordUpdated", "onRecordCreated"]),
      delete: common(),
      getContext: common(),
      getNew: common(),
      load: common(),
      validate: common(),
      uploadFile: common(),
      downloadFile: common(),
    },
    indexApi: {
      buildIndex: common(),
      listItems: common(),
      delete: common(),
      aggregates: common(),
    },
    collectionApi: {
      getAllowedRecordTypes: common(),
      initialise: common(),
      delete: common(),
    },
    authApi: {
      authenticate: common(),
      authenticateTemporaryAccess: common(),
      createTemporaryAccess: common(),
      createUser: common(),
      enableUser: common(),
      disableUser: common(),
      loadAccessLevels: common(),
      getNewAccessLevel: common(),
      getNewUser: common(),
      getNewUserAuth: common(),
      getUsers: common(),
      saveAccessLevels: common(),
      isAuthorized: common(),
      changeMyPassword: common(),
      setPasswordFromTemporaryCode: common(),
      scorePassword: common(),
      isValidPassword: common(),
      validateUser: common(),
      validateAccessLevels: common(),
      setUserAccessLevels: common(),
    },
    templateApi: {
      saveApplicationHierarchy: common(),
      saveActionsAndTriggers: common(),
    },
    actionsApi: {
      execute: common(),
    },
  }

  const _eventsList = []

  const makeEvent = (area, method, name) => `${area}:${method}:${name}`

  for (const areaKey in _events) {
    for (const methodKey in _events[areaKey]) {
      _events[areaKey][methodKey] = fp_7((obj, s) => {
        obj[s] = makeEvent(areaKey, methodKey, s)
        return obj
      }, {})(_events[areaKey][methodKey])
    }
  }

  for (const areaKey in _events) {
    for (const methodKey in _events[areaKey]) {
      for (const name in _events[areaKey][methodKey]) {
        _eventsList.push(_events[areaKey][methodKey][name])
      }
    }
  }

  const events = _events

  class BadRequestError extends Error {
    constructor(message) {
      super(message)
      this.httpStatusCode = 400
    }
  }

  class UnauthorisedError extends Error {
    constructor(message) {
      super(message)
      this.httpStatusCode = 401
    }
  }

  const apiWrapperSync = (
    app,
    eventNamespace,
    isAuthorized,
    eventContext,
    func,
    ...params
  ) => {
    pushCallStack(app, eventNamespace)

    if (!isAuthorized(app)) {
      handleNotAuthorized(app, eventContext, eventNamespace)
      return
    }

    const startDate = Date.now()
    const elapsed = () => Date.now() - startDate

    try {
      app.publish(eventNamespace.onBegin, eventContext)

      const result = func(...params)

      publishComplete(app, eventContext, eventNamespace, elapsed, result)
      return result
    } catch (error) {
      publishError(app, eventContext, eventNamespace, elapsed, error)
      throw error
    }
  }

  const handleNotAuthorized = (app, eventContext, eventNamespace) => {
    const err = new UnauthorisedError(`Unauthorized: ${eventNamespace}`)
    publishError(app, eventContext, eventNamespace, () => 0, err)
    throw err
  }

  const pushCallStack = (app, eventNamespace, seedCallId) => {
    const callId = shortid_1()

    const createCallStack = () => ({
      seedCallId: !fp_2(seedCallId) ? seedCallId : callId,
      threadCallId: callId,
      stack: [],
    })

    if (fp_2(app.calls)) {
      app.calls = createCallStack()
    }

    app.calls.stack.push({
      namespace: eventNamespace,
      callId,
    })
  }

  const popCallStack = app => {
    app.calls.stack.pop()
    if (app.calls.stack.length === 0) {
      delete app.calls
    }
  }

  const publishError = async (
    app,
    eventContext,
    eventNamespace,
    elapsed,
    err
  ) => {
    const ctx = fp_9(eventContext)
    ctx.error = err
    ctx.elapsed = elapsed()
    await app.publish(eventNamespace.onError, ctx)
    popCallStack(app)
  }

  const publishComplete = async (
    app,
    eventContext,
    eventNamespace,
    elapsed,
    result
  ) => {
    const endcontext = fp_9(eventContext)
    endcontext.result = result
    endcontext.elapsed = elapsed()
    await app.publish(eventNamespace.onComplete, endcontext)
    popCallStack(app)
    return result
  }

  var global$1 =
    typeof global !== "undefined"
      ? global
      : typeof self !== "undefined"
      ? self
      : typeof window !== "undefined"
      ? window
      : {}

  // shim for using process in browser
  // based off https://github.com/defunctzombie/node-process/blob/master/browser.js

  function defaultSetTimout() {
    throw new Error("setTimeout has not been defined")
  }
  function defaultClearTimeout() {
    throw new Error("clearTimeout has not been defined")
  }
  var cachedSetTimeout = defaultSetTimout
  var cachedClearTimeout = defaultClearTimeout
  if (typeof global$1.setTimeout === "function") {
    cachedSetTimeout = setTimeout
  }
  if (typeof global$1.clearTimeout === "function") {
    cachedClearTimeout = clearTimeout
  }

  function runTimeout(fun) {
    if (cachedSetTimeout === setTimeout) {
      //normal enviroments in sane situations
      return setTimeout(fun, 0)
    }
    // if setTimeout wasn't available but was latter defined
    if (
      (cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) &&
      setTimeout
    ) {
      cachedSetTimeout = setTimeout
      return setTimeout(fun, 0)
    }
    try {
      // when when somebody has screwed with setTimeout but no I.E. maddness
      return cachedSetTimeout(fun, 0)
    } catch (e) {
      try {
        // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
        return cachedSetTimeout.call(null, fun, 0)
      } catch (e) {
        // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
        return cachedSetTimeout.call(this, fun, 0)
      }
    }
  }
  function runClearTimeout(marker) {
    if (cachedClearTimeout === clearTimeout) {
      //normal enviroments in sane situations
      return clearTimeout(marker)
    }
    // if clearTimeout wasn't available but was latter defined
    if (
      (cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) &&
      clearTimeout
    ) {
      cachedClearTimeout = clearTimeout
      return clearTimeout(marker)
    }
    try {
      // when when somebody has screwed with setTimeout but no I.E. maddness
      return cachedClearTimeout(marker)
    } catch (e) {
      try {
        // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally
        return cachedClearTimeout.call(null, marker)
      } catch (e) {
        // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
        // Some versions of I.E. have different rules for clearTimeout vs setTimeout
        return cachedClearTimeout.call(this, marker)
      }
    }
  }
  var queue = []
  var draining = false
  var currentQueue
  var queueIndex = -1

  function cleanUpNextTick() {
    if (!draining || !currentQueue) {
      return
    }
    draining = false
    if (currentQueue.length) {
      queue = currentQueue.concat(queue)
    } else {
      queueIndex = -1
    }
    if (queue.length) {
      drainQueue()
    }
  }

  function drainQueue() {
    if (draining) {
      return
    }
    var timeout = runTimeout(cleanUpNextTick)
    draining = true

    var len = queue.length
    while (len) {
      currentQueue = queue
      queue = []
      while (++queueIndex < len) {
        if (currentQueue) {
          currentQueue[queueIndex].run()
        }
      }
      queueIndex = -1
      len = queue.length
    }
    currentQueue = null
    draining = false
    runClearTimeout(timeout)
  }
  function nextTick(fun) {
    var args = new Array(arguments.length - 1)
    if (arguments.length > 1) {
      for (var i = 1; i < arguments.length; i++) {
        args[i - 1] = arguments[i]
      }
    }
    queue.push(new Item(fun, args))
    if (queue.length === 1 && !draining) {
      runTimeout(drainQueue)
    }
  }
  // v8 likes predictible objects
  function Item(fun, array) {
    this.fun = fun
    this.array = array
  }
  Item.prototype.run = function() {
    this.fun.apply(null, this.array)
  }
  var title = "browser"
  var platform = "browser"
  var browser = true
  var env = {}
  var argv = []
  var version$1 = "" // empty string to avoid regexp issues
  var versions = {}
  var release = {}
  var config = {}

  function noop$1() {}

  var on = noop$1
  var addListener = noop$1
  var once = noop$1
  var off = noop$1
  var removeListener = noop$1
  var removeAllListeners = noop$1
  var emit = noop$1

  function binding(name) {
    throw new Error("process.binding is not supported")
  }

  function cwd() {
    return "/"
  }
  function chdir(dir) {
    throw new Error("process.chdir is not supported")
  }
  function umask() {
    return 0
  }

  // from https://github.com/kumavis/browser-process-hrtime/blob/master/index.js
  var performance = global$1.performance || {}
  var performanceNow =
    performance.now ||
    performance.mozNow ||
    performance.msNow ||
    performance.oNow ||
    performance.webkitNow ||
    function() {
      return new Date().getTime()
    }

  // generate timestamp or delta
  // see http://nodejs.org/api/process.html#process_process_hrtime
  function hrtime(previousTimestamp) {
    var clocktime = performanceNow.call(performance) * 1e-3
    var seconds = Math.floor(clocktime)
    var nanoseconds = Math.floor((clocktime % 1) * 1e9)
    if (previousTimestamp) {
      seconds = seconds - previousTimestamp[0]
      nanoseconds = nanoseconds - previousTimestamp[1]
      if (nanoseconds < 0) {
        seconds--
        nanoseconds += 1e9
      }
    }
    return [seconds, nanoseconds]
  }

  var startTime = new Date()
  function uptime() {
    var currentTime = new Date()
    var dif = currentTime - startTime
    return dif / 1000
  }

  var process = {
    nextTick: nextTick,
    title: title,
    browser: browser,
    env: env,
    argv: argv,
    version: version$1,
    versions: versions,
    on: on,
    addListener: addListener,
    once: once,
    off: off,
    removeListener: removeListener,
    removeAllListeners: removeAllListeners,
    emit: emit,
    binding: binding,
    cwd: cwd,
    chdir: chdir,
    umask: umask,
    hrtime: hrtime,
    platform: platform,
    release: release,
    config: config,
    uptime: uptime,
  }

  var require$$0 = {}

  var bcrypt = createCommonjsModule(function(module) {
    /*
     Copyright (c) 2012 Nevins Bartolomeo <nevins.bartolomeo@gmail.com>
     Copyright (c) 2012 Shane Girish <shaneGirish@gmail.com>
     Copyright (c) 2014 Daniel Wirtz <dcode@dcode.io>

     Redistribution and use in source and binary forms, with or without
     modification, are permitted provided that the following conditions
     are met:
     1. Redistributions of source code must retain the above copyright
     notice, this list of conditions and the following disclaimer.
     2. Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in the
     documentation and/or other materials provided with the distribution.
     3. The name of the author may not be used to endorse or promote products
     derived from this software without specific prior written permission.

     THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     */

    /**
     * @license bcrypt.js (c) 2013 Daniel Wirtz <dcode@dcode.io>
     * Released under the Apache License, Version 2.0
     * see: https://github.com/dcodeIO/bcrypt.js for details
     */
    ;(function(global, factory) {
      /* AMD */ if (
        typeof commonjsRequire === "function" &&
        "object" === "object" &&
        module &&
        module["exports"]
      )
        module["exports"] = factory()
      /* Global */ else
        (global["dcodeIO"] = global["dcodeIO"] || {})["bcrypt"] = factory()
    })(commonjsGlobal, function() {
      /**
       * bcrypt namespace.
       * @type {Object.<string,*>}
       */
      var bcrypt = {}

      /**
       * The random implementation to use as a fallback.
       * @type {?function(number):!Array.<number>}
       * @inner
       */
      var randomFallback = null

      /**
       * Generates cryptographically secure random bytes.
       * @function
       * @param {number} len Bytes length
       * @returns {!Array.<number>} Random bytes
       * @throws {Error} If no random implementation is available
       * @inner
       */
      function random(len) {
        /* node */ if (module && module["exports"])
          try {
            return require$$0["randomBytes"](len)
          } catch (e) {}
        /* WCA */ try {
          var a
          ;(self["crypto"] || self["msCrypto"])["getRandomValues"](
            (a = new Uint32Array(len))
          )
          return Array.prototype.slice.call(a)
        } catch (e) {}
        /* fallback */ if (!randomFallback)
          throw Error(
            "Neither WebCryptoAPI nor a crypto module is available. Use bcrypt.setRandomFallback to set an alternative"
          )
        return randomFallback(len)
      }

      // Test if any secure randomness source is available
      var randomAvailable = false
      try {
        random(1)
        randomAvailable = true
      } catch (e) {}

      // Default fallback, if any
      randomFallback = null
      /**
       * Sets the pseudo random number generator to use as a fallback if neither node's `crypto` module nor the Web Crypto
       *  API is available. Please note: It is highly important that the PRNG used is cryptographically secure and that it
       *  is seeded properly!
       * @param {?function(number):!Array.<number>} random Function taking the number of bytes to generate as its
       *  sole argument, returning the corresponding array of cryptographically secure random byte values.
       * @see http://nodejs.org/api/crypto.html
       * @see http://www.w3.org/TR/WebCryptoAPI/
       */
      bcrypt.setRandomFallback = function(random) {
        randomFallback = random
      }

      /**
       * Synchronously generates a salt.
       * @param {number=} rounds Number of rounds to use, defaults to 10 if omitted
       * @param {number=} seed_length Not supported.
       * @returns {string} Resulting salt
       * @throws {Error} If a random fallback is required but not set
       * @expose
       */
      bcrypt.genSaltSync = function(rounds, seed_length) {
        rounds = rounds || GENSALT_DEFAULT_LOG2_ROUNDS
        if (typeof rounds !== "number")
          throw Error(
            "Illegal arguments: " + typeof rounds + ", " + typeof seed_length
          )
        if (rounds < 4) rounds = 4
        else if (rounds > 31) rounds = 31
        var salt = []
        salt.push("$2a$")
        if (rounds < 10) salt.push("0")
        salt.push(rounds.toString())
        salt.push("$")
        salt.push(base64_encode(random(BCRYPT_SALT_LEN), BCRYPT_SALT_LEN)) // May throw
        return salt.join("")
      }

      /**
       * Asynchronously generates a salt.
       * @param {(number|function(Error, string=))=} rounds Number of rounds to use, defaults to 10 if omitted
       * @param {(number|function(Error, string=))=} seed_length Not supported.
       * @param {function(Error, string=)=} callback Callback receiving the error, if any, and the resulting salt
       * @returns {!Promise} If `callback` has been omitted
       * @throws {Error} If `callback` is present but not a function
       * @expose
       */
      bcrypt.genSalt = function(rounds, seed_length, callback) {
        if (typeof seed_length === "function")
          (callback = seed_length), (seed_length = undefined) // Not supported.
        if (typeof rounds === "function")
          (callback = rounds), (rounds = undefined)
        if (typeof rounds === "undefined") rounds = GENSALT_DEFAULT_LOG2_ROUNDS
        else if (typeof rounds !== "number")
          throw Error("illegal arguments: " + typeof rounds)

        function _async(callback) {
          nextTick$1(function() {
            // Pretty thin, but salting is fast enough
            try {
              callback(null, bcrypt.genSaltSync(rounds))
            } catch (err) {
              callback(err)
            }
          })
        }

        if (callback) {
          if (typeof callback !== "function")
            throw Error("Illegal callback: " + typeof callback)
          _async(callback)
        } else
          return new Promise(function(resolve, reject) {
            _async(function(err, res) {
              if (err) {
                reject(err)
                return
              }
              resolve(res)
            })
          })
      }

      /**
       * Synchronously generates a hash for the given string.
       * @param {string} s String to hash
       * @param {(number|string)=} salt Salt length to generate or salt to use, default to 10
       * @returns {string} Resulting hash
       * @expose
       */
      bcrypt.hashSync = function(s, salt) {
        if (typeof salt === "undefined") salt = GENSALT_DEFAULT_LOG2_ROUNDS
        if (typeof salt === "number") salt = bcrypt.genSaltSync(salt)
        if (typeof s !== "string" || typeof salt !== "string")
          throw Error("Illegal arguments: " + typeof s + ", " + typeof salt)
        return _hash(s, salt)
      }

      /**
       * Asynchronously generates a hash for the given string.
       * @param {string} s String to hash
       * @param {number|string} salt Salt length to generate or salt to use
       * @param {function(Error, string=)=} callback Callback receiving the error, if any, and the resulting hash
       * @param {function(number)=} progressCallback Callback successively called with the percentage of rounds completed
       *  (0.0 - 1.0), maximally once per `MAX_EXECUTION_TIME = 100` ms.
       * @returns {!Promise} If `callback` has been omitted
       * @throws {Error} If `callback` is present but not a function
       * @expose
       */
      bcrypt.hash = function(s, salt, callback, progressCallback) {
        function _async(callback) {
          if (typeof s === "string" && typeof salt === "number")
            bcrypt.genSalt(salt, function(err, salt) {
              _hash(s, salt, callback, progressCallback)
            })
          else if (typeof s === "string" && typeof salt === "string")
            _hash(s, salt, callback, progressCallback)
          else
            nextTick$1(
              callback.bind(
                this,
                Error("Illegal arguments: " + typeof s + ", " + typeof salt)
              )
            )
        }

        if (callback) {
          if (typeof callback !== "function")
            throw Error("Illegal callback: " + typeof callback)
          _async(callback)
        } else
          return new Promise(function(resolve, reject) {
            _async(function(err, res) {
              if (err) {
                reject(err)
                return
              }
              resolve(res)
            })
          })
      }

      /**
       * Compares two strings of the same length in constant time.
       * @param {string} known Must be of the correct length
       * @param {string} unknown Must be the same length as `known`
       * @returns {boolean}
       * @inner
       */
      function safeStringCompare(known, unknown) {
        var right = 0,
          wrong = 0
        for (var i = 0, k = known.length; i < k; ++i) {
          if (known.charCodeAt(i) === unknown.charCodeAt(i)) ++right
          else ++wrong
        }
        // Prevent removal of unused variables (never true, actually)
        if (right < 0) return false
        return wrong === 0
      }

      /**
       * Synchronously tests a string against a hash.
       * @param {string} s String to compare
       * @param {string} hash Hash to test against
       * @returns {boolean} true if matching, otherwise false
       * @throws {Error} If an argument is illegal
       * @expose
       */
      bcrypt.compareSync = function(s, hash) {
        if (typeof s !== "string" || typeof hash !== "string")
          throw Error("Illegal arguments: " + typeof s + ", " + typeof hash)
        if (hash.length !== 60) return false
        return safeStringCompare(
          bcrypt.hashSync(s, hash.substr(0, hash.length - 31)),
          hash
        )
      }

      /**
       * Asynchronously compares the given data against the given hash.
       * @param {string} s Data to compare
       * @param {string} hash Data to be compared to
       * @param {function(Error, boolean)=} callback Callback receiving the error, if any, otherwise the result
       * @param {function(number)=} progressCallback Callback successively called with the percentage of rounds completed
       *  (0.0 - 1.0), maximally once per `MAX_EXECUTION_TIME = 100` ms.
       * @returns {!Promise} If `callback` has been omitted
       * @throws {Error} If `callback` is present but not a function
       * @expose
       */
      bcrypt.compare = function(s, hash, callback, progressCallback) {
        function _async(callback) {
          if (typeof s !== "string" || typeof hash !== "string") {
            nextTick$1(
              callback.bind(
                this,
                Error("Illegal arguments: " + typeof s + ", " + typeof hash)
              )
            )
            return
          }
          if (hash.length !== 60) {
            nextTick$1(callback.bind(this, null, false))
            return
          }
          bcrypt.hash(
            s,
            hash.substr(0, 29),
            function(err, comp) {
              if (err) callback(err)
              else callback(null, safeStringCompare(comp, hash))
            },
            progressCallback
          )
        }

        if (callback) {
          if (typeof callback !== "function")
            throw Error("Illegal callback: " + typeof callback)
          _async(callback)
        } else
          return new Promise(function(resolve, reject) {
            _async(function(err, res) {
              if (err) {
                reject(err)
                return
              }
              resolve(res)
            })
          })
      }

      /**
       * Gets the number of rounds used to encrypt the specified hash.
       * @param {string} hash Hash to extract the used number of rounds from
       * @returns {number} Number of rounds used
       * @throws {Error} If `hash` is not a string
       * @expose
       */
      bcrypt.getRounds = function(hash) {
        if (typeof hash !== "string")
          throw Error("Illegal arguments: " + typeof hash)
        return parseInt(hash.split("$")[2], 10)
      }

      /**
       * Gets the salt portion from a hash. Does not validate the hash.
       * @param {string} hash Hash to extract the salt from
       * @returns {string} Extracted salt part
       * @throws {Error} If `hash` is not a string or otherwise invalid
       * @expose
       */
      bcrypt.getSalt = function(hash) {
        if (typeof hash !== "string")
          throw Error("Illegal arguments: " + typeof hash)
        if (hash.length !== 60)
          throw Error("Illegal hash length: " + hash.length + " != 60")
        return hash.substring(0, 29)
      }

      /**
       * Continues with the callback on the next tick.
       * @function
       * @param {function(...[*])} callback Callback to execute
       * @inner
       */
      var nextTick$1 =
        typeof process !== "undefined" &&
        process &&
        typeof nextTick === "function"
          ? typeof setImmediate === "function"
            ? setImmediate
            : nextTick
          : setTimeout

      /**
       * Converts a JavaScript string to UTF8 bytes.
       * @param {string} str String
       * @returns {!Array.<number>} UTF8 bytes
       * @inner
       */
      function stringToBytes(str) {
        var out = [],
          i = 0
        utfx.encodeUTF16toUTF8(
          function() {
            if (i >= str.length) return null
            return str.charCodeAt(i++)
          },
          function(b) {
            out.push(b)
          }
        )
        return out
      }

      // A base64 implementation for the bcrypt algorithm. This is partly non-standard.

      /**
       * bcrypt's own non-standard base64 dictionary.
       * @type {!Array.<string>}
       * @const
       * @inner
       **/
      var BASE64_CODE = "./ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789".split(
        ""
      )

      /**
       * @type {!Array.<number>}
       * @const
       * @inner
       **/
      var BASE64_INDEX = [
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        0,
        1,
        54,
        55,
        56,
        57,
        58,
        59,
        60,
        61,
        62,
        63,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        2,
        3,
        4,
        5,
        6,
        7,
        8,
        9,
        10,
        11,
        12,
        13,
        14,
        15,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24,
        25,
        26,
        27,
        -1,
        -1,
        -1,
        -1,
        -1,
        -1,
        28,
        29,
        30,
        31,
        32,
        33,
        34,
        35,
        36,
        37,
        38,
        39,
        40,
        41,
        42,
        43,
        44,
        45,
        46,
        47,
        48,
        49,
        50,
        51,
        52,
        53,
        -1,
        -1,
        -1,
        -1,
        -1,
      ]

      /**
       * @type {!function(...number):string}
       * @inner
       */
      var stringFromCharCode = String.fromCharCode

      /**
       * Encodes a byte array to base64 with up to len bytes of input.
       * @param {!Array.<number>} b Byte array
       * @param {number} len Maximum input length
       * @returns {string}
       * @inner
       */
      function base64_encode(b, len) {
        var off = 0,
          rs = [],
          c1,
          c2
        if (len <= 0 || len > b.length) throw Error("Illegal len: " + len)
        while (off < len) {
          c1 = b[off++] & 0xff
          rs.push(BASE64_CODE[(c1 >> 2) & 0x3f])
          c1 = (c1 & 0x03) << 4
          if (off >= len) {
            rs.push(BASE64_CODE[c1 & 0x3f])
            break
          }
          c2 = b[off++] & 0xff
          c1 |= (c2 >> 4) & 0x0f
          rs.push(BASE64_CODE[c1 & 0x3f])
          c1 = (c2 & 0x0f) << 2
          if (off >= len) {
            rs.push(BASE64_CODE[c1 & 0x3f])
            break
          }
          c2 = b[off++] & 0xff
          c1 |= (c2 >> 6) & 0x03
          rs.push(BASE64_CODE[c1 & 0x3f])
          rs.push(BASE64_CODE[c2 & 0x3f])
        }
        return rs.join("")
      }

      /**
       * Decodes a base64 encoded string to up to len bytes of output.
       * @param {string} s String to decode
       * @param {number} len Maximum output length
       * @returns {!Array.<number>}
       * @inner
       */
      function base64_decode(s, len) {
        var off = 0,
          slen = s.length,
          olen = 0,
          rs = [],
          c1,
          c2,
          c3,
          c4,
          o,
          code
        if (len <= 0) throw Error("Illegal len: " + len)
        while (off < slen - 1 && olen < len) {
          code = s.charCodeAt(off++)
          c1 = code < BASE64_INDEX.length ? BASE64_INDEX[code] : -1
          code = s.charCodeAt(off++)
          c2 = code < BASE64_INDEX.length ? BASE64_INDEX[code] : -1
          if (c1 == -1 || c2 == -1) break
          o = (c1 << 2) >>> 0
          o |= (c2 & 0x30) >> 4
          rs.push(stringFromCharCode(o))
          if (++olen >= len || off >= slen) break
          code = s.charCodeAt(off++)
          c3 = code < BASE64_INDEX.length ? BASE64_INDEX[code] : -1
          if (c3 == -1) break
          o = ((c2 & 0x0f) << 4) >>> 0
          o |= (c3 & 0x3c) >> 2
          rs.push(stringFromCharCode(o))
          if (++olen >= len || off >= slen) break
          code = s.charCodeAt(off++)
          c4 = code < BASE64_INDEX.length ? BASE64_INDEX[code] : -1
          o = ((c3 & 0x03) << 6) >>> 0
          o |= c4
          rs.push(stringFromCharCode(o))
          ++olen
        }
        var res = []
        for (off = 0; off < olen; off++) res.push(rs[off].charCodeAt(0))
        return res
      }

      /**
       * utfx-embeddable (c) 2014 Daniel Wirtz <dcode@dcode.io>
       * Released under the Apache License, Version 2.0
       * see: https://github.com/dcodeIO/utfx for details
       */
      var utfx = (function() {
        /**
         * utfx namespace.
         * @inner
         * @type {!Object.<string,*>}
         */
        var utfx = {}

        /**
         * Maximum valid code point.
         * @type {number}
         * @const
         */
        utfx.MAX_CODEPOINT = 0x10ffff

        /**
         * Encodes UTF8 code points to UTF8 bytes.
         * @param {(!function():number|null) | number} src Code points source, either as a function returning the next code point
         *  respectively `null` if there are no more code points left or a single numeric code point.
         * @param {!function(number)} dst Bytes destination as a function successively called with the next byte
         */
        utfx.encodeUTF8 = function(src, dst) {
          var cp = null
          if (typeof src === "number")
            (cp = src),
              (src = function() {
                return null
              })
          while (cp !== null || (cp = src()) !== null) {
            if (cp < 0x80) dst(cp & 0x7f)
            else if (cp < 0x800)
              dst(((cp >> 6) & 0x1f) | 0xc0), dst((cp & 0x3f) | 0x80)
            else if (cp < 0x10000)
              dst(((cp >> 12) & 0x0f) | 0xe0),
                dst(((cp >> 6) & 0x3f) | 0x80),
                dst((cp & 0x3f) | 0x80)
            else
              dst(((cp >> 18) & 0x07) | 0xf0),
                dst(((cp >> 12) & 0x3f) | 0x80),
                dst(((cp >> 6) & 0x3f) | 0x80),
                dst((cp & 0x3f) | 0x80)
            cp = null
          }
        }

        /**
         * Decodes UTF8 bytes to UTF8 code points.
         * @param {!function():number|null} src Bytes source as a function returning the next byte respectively `null` if there
         *  are no more bytes left.
         * @param {!function(number)} dst Code points destination as a function successively called with each decoded code point.
         * @throws {RangeError} If a starting byte is invalid in UTF8
         * @throws {Error} If the last sequence is truncated. Has an array property `bytes` holding the
         *  remaining bytes.
         */
        utfx.decodeUTF8 = function(src, dst) {
          var a,
            b,
            c,
            d,
            fail = function(b) {
              b = b.slice(0, b.indexOf(null))
              var err = Error(b.toString())
              err.name = "TruncatedError"
              err["bytes"] = b
              throw err
            }
          while ((a = src()) !== null) {
            if ((a & 0x80) === 0) dst(a)
            else if ((a & 0xe0) === 0xc0)
              (b = src()) === null && fail([a, b]),
                dst(((a & 0x1f) << 6) | (b & 0x3f))
            else if ((a & 0xf0) === 0xe0)
              ((b = src()) === null || (c = src()) === null) && fail([a, b, c]),
                dst(((a & 0x0f) << 12) | ((b & 0x3f) << 6) | (c & 0x3f))
            else if ((a & 0xf8) === 0xf0)
              ((b = src()) === null ||
                (c = src()) === null ||
                (d = src()) === null) &&
                fail([a, b, c, d]),
                dst(
                  ((a & 0x07) << 18) |
                    ((b & 0x3f) << 12) |
                    ((c & 0x3f) << 6) |
                    (d & 0x3f)
                )
            else throw RangeError("Illegal starting byte: " + a)
          }
        }

        /**
         * Converts UTF16 characters to UTF8 code points.
         * @param {!function():number|null} src Characters source as a function returning the next char code respectively
         *  `null` if there are no more characters left.
         * @param {!function(number)} dst Code points destination as a function successively called with each converted code
         *  point.
         */
        utfx.UTF16toUTF8 = function(src, dst) {
          var c1,
            c2 = null
          while (true) {
            if ((c1 = c2 !== null ? c2 : src()) === null) break
            if (c1 >= 0xd800 && c1 <= 0xdfff) {
              if ((c2 = src()) !== null) {
                if (c2 >= 0xdc00 && c2 <= 0xdfff) {
                  dst((c1 - 0xd800) * 0x400 + c2 - 0xdc00 + 0x10000)
                  c2 = null
                  continue
                }
              }
            }
            dst(c1)
          }
          if (c2 !== null) dst(c2)
        }

        /**
         * Converts UTF8 code points to UTF16 characters.
         * @param {(!function():number|null) | number} src Code points source, either as a function returning the next code point
         *  respectively `null` if there are no more code points left or a single numeric code point.
         * @param {!function(number)} dst Characters destination as a function successively called with each converted char code.
         * @throws {RangeError} If a code point is out of range
         */
        utfx.UTF8toUTF16 = function(src, dst) {
          var cp = null
          if (typeof src === "number")
            (cp = src),
              (src = function() {
                return null
              })
          while (cp !== null || (cp = src()) !== null) {
            if (cp <= 0xffff) dst(cp)
            else
              (cp -= 0x10000),
                dst((cp >> 10) + 0xd800),
                dst((cp % 0x400) + 0xdc00)
            cp = null
          }
        }

        /**
         * Converts and encodes UTF16 characters to UTF8 bytes.
         * @param {!function():number|null} src Characters source as a function returning the next char code respectively `null`
         *  if there are no more characters left.
         * @param {!function(number)} dst Bytes destination as a function successively called with the next byte.
         */
        utfx.encodeUTF16toUTF8 = function(src, dst) {
          utfx.UTF16toUTF8(src, function(cp) {
            utfx.encodeUTF8(cp, dst)
          })
        }

        /**
         * Decodes and converts UTF8 bytes to UTF16 characters.
         * @param {!function():number|null} src Bytes source as a function returning the next byte respectively `null` if there
         *  are no more bytes left.
         * @param {!function(number)} dst Characters destination as a function successively called with each converted char code.
         * @throws {RangeError} If a starting byte is invalid in UTF8
         * @throws {Error} If the last sequence is truncated. Has an array property `bytes` holding the remaining bytes.
         */
        utfx.decodeUTF8toUTF16 = function(src, dst) {
          utfx.decodeUTF8(src, function(cp) {
            utfx.UTF8toUTF16(cp, dst)
          })
        }

        /**
         * Calculates the byte length of an UTF8 code point.
         * @param {number} cp UTF8 code point
         * @returns {number} Byte length
         */
        utfx.calculateCodePoint = function(cp) {
          return cp < 0x80 ? 1 : cp < 0x800 ? 2 : cp < 0x10000 ? 3 : 4
        }

        /**
         * Calculates the number of UTF8 bytes required to store UTF8 code points.
         * @param {(!function():number|null)} src Code points source as a function returning the next code point respectively
         *  `null` if there are no more code points left.
         * @returns {number} The number of UTF8 bytes required
         */
        utfx.calculateUTF8 = function(src) {
          var cp,
            l = 0
          while ((cp = src()) !== null) l += utfx.calculateCodePoint(cp)
          return l
        }

        /**
         * Calculates the number of UTF8 code points respectively UTF8 bytes required to store UTF16 char codes.
         * @param {(!function():number|null)} src Characters source as a function returning the next char code respectively
         *  `null` if there are no more characters left.
         * @returns {!Array.<number>} The number of UTF8 code points at index 0 and the number of UTF8 bytes required at index 1.
         */
        utfx.calculateUTF16asUTF8 = function(src) {
          var n = 0,
            l = 0
          utfx.UTF16toUTF8(src, function(cp) {
            ++n
            l += utfx.calculateCodePoint(cp)
          })
          return [n, l]
        }

        return utfx
      })()

      Date.now =
        Date.now ||
        function() {
          return +new Date()
        }

      /**
       * @type {number}
       * @const
       * @inner
       */
      var BCRYPT_SALT_LEN = 16

      /**
       * @type {number}
       * @const
       * @inner
       */
      var GENSALT_DEFAULT_LOG2_ROUNDS = 10

      /**
       * @type {number}
       * @const
       * @inner
       */
      var BLOWFISH_NUM_ROUNDS = 16

      /**
       * @type {number}
       * @const
       * @inner
       */
      var MAX_EXECUTION_TIME = 100

      /**
       * @type {Array.<number>}
       * @const
       * @inner
       */
      var P_ORIG = [
        0x243f6a88,
        0x85a308d3,
        0x13198a2e,
        0x03707344,
        0xa4093822,
        0x299f31d0,
        0x082efa98,
        0xec4e6c89,
        0x452821e6,
        0x38d01377,
        0xbe5466cf,
        0x34e90c6c,
        0xc0ac29b7,
        0xc97c50dd,
        0x3f84d5b5,
        0xb5470917,
        0x9216d5d9,
        0x8979fb1b,
      ]

      /**
       * @type {Array.<number>}
       * @const
       * @inner
       */
      var S_ORIG = [
        0xd1310ba6,
        0x98dfb5ac,
        0x2ffd72db,
        0xd01adfb7,
        0xb8e1afed,
        0x6a267e96,
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        0xf12c7f99,
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        0xc66a2b3b,
        0x12754ccc,
        0x782ef11c,
        0x6a124237,
        0xb79251e7,
        0x06a1bbe6,
        0x4bfb6350,
        0x1a6b1018,
        0x11caedfa,
        0x3d25bdd8,
        0xe2e1c3c9,
        0x44421659,
        0x0a121386,
        0xd90cec6e,
        0xd5abea2a,
        0x64af674e,
        0xda86a85f,
        0xbebfe988,
        0x64e4c3fe,
        0x9dbc8057,
        0xf0f7c086,
        0x60787bf8,
        0x6003604d,
        0xd1fd8346,
        0xf6381fb0,
        0x7745ae04,
        0xd736fccc,
        0x83426b33,
        0xf01eab71,
        0xb0804187,
        0x3c005e5f,
        0x77a057be,
        0xbde8ae24,
        0x55464299,
        0xbf582e61,
        0x4e58f48f,
        0xf2ddfda2,
        0xf474ef38,
        0x8789bdc2,
        0x5366f9c3,
        0xc8b38e74,
        0xb475f255,
        0x46fcd9b9,
        0x7aeb2661,
        0x8b1ddf84,
        0x846a0e79,
        0x915f95e2,
        0x466e598e,
        0x20b45770,
        0x8cd55591,
        0xc902de4c,
        0xb90bace1,
        0xbb8205d0,
        0x11a86248,
        0x7574a99e,
        0xb77f19b6,
        0xe0a9dc09,
        0x662d09a1,
        0xc4324633,
        0xe85a1f02,
        0x09f0be8c,
        0x4a99a025,
        0x1d6efe10,
        0x1ab93d1d,
        0x0ba5a4df,
        0xa186f20f,
        0x2868f169,
        0xdcb7da83,
        0x573906fe,
        0xa1e2ce9b,
        0x4fcd7f52,
        0x50115e01,
        0xa70683fa,
        0xa002b5c4,
        0x0de6d027,
        0x9af88c27,
        0x773f8641,
        0xc3604c06,
        0x61a806b5,
        0xf0177a28,
        0xc0f586e0,
        0x006058aa,
        0x30dc7d62,
        0x11e69ed7,
        0x2338ea63,
        0x53c2dd94,
        0xc2c21634,
        0xbbcbee56,
        0x90bcb6de,
        0xebfc7da1,
        0xce591d76,
        0x6f05e409,
        0x4b7c0188,
        0x39720a3d,
        0x7c927c24,
        0x86e3725f,
        0x724d9db9,
        0x1ac15bb4,
        0xd39eb8fc,
        0xed545578,
        0x08fca5b5,
        0xd83d7cd3,
        0x4dad0fc4,
        0x1e50ef5e,
        0xb161e6f8,
        0xa28514d9,
        0x6c51133c,
        0x6fd5c7e7,
        0x56e14ec4,
        0x362abfce,
        0xddc6c837,
        0xd79a3234,
        0x92638212,
        0x670efa8e,
        0x406000e0,
        0x3a39ce37,
        0xd3faf5cf,
        0xabc27737,
        0x5ac52d1b,
        0x5cb0679e,
        0x4fa33742,
        0xd3822740,
        0x99bc9bbe,
        0xd5118e9d,
        0xbf0f7315,
        0xd62d1c7e,
        0xc700c47b,
        0xb78c1b6b,
        0x21a19045,
        0xb26eb1be,
        0x6a366eb4,
        0x5748ab2f,
        0xbc946e79,
        0xc6a376d2,
        0x6549c2c8,
        0x530ff8ee,
        0x468dde7d,
        0xd5730a1d,
        0x4cd04dc6,
        0x2939bbdb,
        0xa9ba4650,
        0xac9526e8,
        0xbe5ee304,
        0xa1fad5f0,
        0x6a2d519a,
        0x63ef8ce2,
        0x9a86ee22,
        0xc089c2b8,
        0x43242ef6,
        0xa51e03aa,
        0x9cf2d0a4,
        0x83c061ba,
        0x9be96a4d,
        0x8fe51550,
        0xba645bd6,
        0x2826a2f9,
        0xa73a3ae1,
        0x4ba99586,
        0xef5562e9,
        0xc72fefd3,
        0xf752f7da,
        0x3f046f69,
        0x77fa0a59,
        0x80e4a915,
        0x87b08601,
        0x9b09e6ad,
        0x3b3ee593,
        0xe990fd5a,
        0x9e34d797,
        0x2cf0b7d9,
        0x022b8b51,
        0x96d5ac3a,
        0x017da67d,
        0xd1cf3ed6,
        0x7c7d2d28,
        0x1f9f25cf,
        0xadf2b89b,
        0x5ad6b472,
        0x5a88f54c,
        0xe029ac71,
        0xe019a5e6,
        0x47b0acfd,
        0xed93fa9b,
        0xe8d3c48d,
        0x283b57cc,
        0xf8d56629,
        0x79132e28,
        0x785f0191,
        0xed756055,
        0xf7960e44,
        0xe3d35e8c,
        0x15056dd4,
        0x88f46dba,
        0x03a16125,
        0x0564f0bd,
        0xc3eb9e15,
        0x3c9057a2,
        0x97271aec,
        0xa93a072a,
        0x1b3f6d9b,
        0x1e6321f5,
        0xf59c66fb,
        0x26dcf319,
        0x7533d928,
        0xb155fdf5,
        0x03563482,
        0x8aba3cbb,
        0x28517711,
        0xc20ad9f8,
        0xabcc5167,
        0xccad925f,
        0x4de81751,
        0x3830dc8e,
        0x379d5862,
        0x9320f991,
        0xea7a90c2,
        0xfb3e7bce,
        0x5121ce64,
        0x774fbe32,
        0xa8b6e37e,
        0xc3293d46,
        0x48de5369,
        0x6413e680,
        0xa2ae0810,
        0xdd6db224,
        0x69852dfd,
        0x09072166,
        0xb39a460a,
        0x6445c0dd,
        0x586cdecf,
        0x1c20c8ae,
        0x5bbef7dd,
        0x1b588d40,
        0xccd2017f,
        0x6bb4e3bb,
        0xdda26a7e,
        0x3a59ff45,
        0x3e350a44,
        0xbcb4cdd5,
        0x72eacea8,
        0xfa6484bb,
        0x8d6612ae,
        0xbf3c6f47,
        0xd29be463,
        0x542f5d9e,
        0xaec2771b,
        0xf64e6370,
        0x740e0d8d,
        0xe75b1357,
        0xf8721671,
        0xaf537d5d,
        0x4040cb08,
        0x4eb4e2cc,
        0x34d2466a,
        0x0115af84,
        0xe1b00428,
        0x95983a1d,
        0x06b89fb4,
        0xce6ea048,
        0x6f3f3b82,
        0x3520ab82,
        0x011a1d4b,
        0x277227f8,
        0x611560b1,
        0xe7933fdc,
        0xbb3a792b,
        0x344525bd,
        0xa08839e1,
        0x51ce794b,
        0x2f32c9b7,
        0xa01fbac9,
        0xe01cc87e,
        0xbcc7d1f6,
        0xcf0111c3,
        0xa1e8aac7,
        0x1a908749,
        0xd44fbd9a,
        0xd0dadecb,
        0xd50ada38,
        0x0339c32a,
        0xc6913667,
        0x8df9317c,
        0xe0b12b4f,
        0xf79e59b7,
        0x43f5bb3a,
        0xf2d519ff,
        0x27d9459c,
        0xbf97222c,
        0x15e6fc2a,
        0x0f91fc71,
        0x9b941525,
        0xfae59361,
        0xceb69ceb,
        0xc2a86459,
        0x12baa8d1,
        0xb6c1075e,
        0xe3056a0c,
        0x10d25065,
        0xcb03a442,
        0xe0ec6e0e,
        0x1698db3b,
        0x4c98a0be,
        0x3278e964,
        0x9f1f9532,
        0xe0d392df,
        0xd3a0342b,
        0x8971f21e,
        0x1b0a7441,
        0x4ba3348c,
        0xc5be7120,
        0xc37632d8,
        0xdf359f8d,
        0x9b992f2e,
        0xe60b6f47,
        0x0fe3f11d,
        0xe54cda54,
        0x1edad891,
        0xce6279cf,
        0xcd3e7e6f,
        0x1618b166,
        0xfd2c1d05,
        0x848fd2c5,
        0xf6fb2299,
        0xf523f357,
        0xa6327623,
        0x93a83531,
        0x56cccd02,
        0xacf08162,
        0x5a75ebb5,
        0x6e163697,
        0x88d273cc,
        0xde966292,
        0x81b949d0,
        0x4c50901b,
        0x71c65614,
        0xe6c6c7bd,
        0x327a140a,
        0x45e1d006,
        0xc3f27b9a,
        0xc9aa53fd,
        0x62a80f00,
        0xbb25bfe2,
        0x35bdd2f6,
        0x71126905,
        0xb2040222,
        0xb6cbcf7c,
        0xcd769c2b,
        0x53113ec0,
        0x1640e3d3,
        0x38abbd60,
        0x2547adf0,
        0xba38209c,
        0xf746ce76,
        0x77afa1c5,
        0x20756060,
        0x85cbfe4e,
        0x8ae88dd8,
        0x7aaaf9b0,
        0x4cf9aa7e,
        0x1948c25c,
        0x02fb8a8c,
        0x01c36ae4,
        0xd6ebe1f9,
        0x90d4f869,
        0xa65cdea0,
        0x3f09252d,
        0xc208e69f,
        0xb74e6132,
        0xce77e25b,
        0x578fdfe3,
        0x3ac372e6,
      ]

      /**
       * @type {Array.<number>}
       * @const
       * @inner
       */
      var C_ORIG = [
        0x4f727068,
        0x65616e42,
        0x65686f6c,
        0x64657253,
        0x63727944,
        0x6f756274,
      ]

      /**
       * @param {Array.<number>} lr
       * @param {number} off
       * @param {Array.<number>} P
       * @param {Array.<number>} S
       * @returns {Array.<number>}
       * @inner
       */
      function _encipher(lr, off, P, S) {
        // This is our bottleneck: 1714/1905 ticks / 90% - see profile.txt
        var n,
          l = lr[off],
          r = lr[off + 1]

        l ^= P[0]

        /*
            for (var i=0, k=BLOWFISH_NUM_ROUNDS-2; i<=k;)
                // Feistel substitution on left word
                n  = S[l >>> 24],
                n += S[0x100 | ((l >> 16) & 0xff)],
                n ^= S[0x200 | ((l >> 8) & 0xff)],
                n += S[0x300 | (l & 0xff)],
                r ^= n ^ P[++i],
                // Feistel substitution on right word
                n  = S[r >>> 24],
                n += S[0x100 | ((r >> 16) & 0xff)],
                n ^= S[0x200 | ((r >> 8) & 0xff)],
                n += S[0x300 | (r & 0xff)],
                l ^= n ^ P[++i];
            */

        //The following is an unrolled version of the above loop.
        //Iteration 0
        n = S[l >>> 24]
        n += S[0x100 | ((l >> 16) & 0xff)]
        n ^= S[0x200 | ((l >> 8) & 0xff)]
        n += S[0x300 | (l & 0xff)]
        r ^= n ^ P[1]
        n = S[r >>> 24]
        n += S[0x100 | ((r >> 16) & 0xff)]
        n ^= S[0x200 | ((r >> 8) & 0xff)]
        n += S[0x300 | (r & 0xff)]
        l ^= n ^ P[2]
        //Iteration 1
        n = S[l >>> 24]
        n += S[0x100 | ((l >> 16) & 0xff)]
        n ^= S[0x200 | ((l >> 8) & 0xff)]
        n += S[0x300 | (l & 0xff)]
        r ^= n ^ P[3]
        n = S[r >>> 24]
        n += S[0x100 | ((r >> 16) & 0xff)]
        n ^= S[0x200 | ((r >> 8) & 0xff)]
        n += S[0x300 | (r & 0xff)]
        l ^= n ^ P[4]
        //Iteration 2
        n = S[l >>> 24]
        n += S[0x100 | ((l >> 16) & 0xff)]
        n ^= S[0x200 | ((l >> 8) & 0xff)]
        n += S[0x300 | (l & 0xff)]
        r ^= n ^ P[5]
        n = S[r >>> 24]
        n += S[0x100 | ((r >> 16) & 0xff)]
        n ^= S[0x200 | ((r >> 8) & 0xff)]
        n += S[0x300 | (r & 0xff)]
        l ^= n ^ P[6]
        //Iteration 3
        n = S[l >>> 24]
        n += S[0x100 | ((l >> 16) & 0xff)]
        n ^= S[0x200 | ((l >> 8) & 0xff)]
        n += S[0x300 | (l & 0xff)]
        r ^= n ^ P[7]
        n = S[r >>> 24]
        n += S[0x100 | ((r >> 16) & 0xff)]
        n ^= S[0x200 | ((r >> 8) & 0xff)]
        n += S[0x300 | (r & 0xff)]
        l ^= n ^ P[8]
        //Iteration 4
        n = S[l >>> 24]
        n += S[0x100 | ((l >> 16) & 0xff)]
        n ^= S[0x200 | ((l >> 8) & 0xff)]
        n += S[0x300 | (l & 0xff)]
        r ^= n ^ P[9]
        n = S[r >>> 24]
        n += S[0x100 | ((r >> 16) & 0xff)]
        n ^= S[0x200 | ((r >> 8) & 0xff)]
        n += S[0x300 | (r & 0xff)]
        l ^= n ^ P[10]
        //Iteration 5
        n = S[l >>> 24]
        n += S[0x100 | ((l >> 16) & 0xff)]
        n ^= S[0x200 | ((l >> 8) & 0xff)]
        n += S[0x300 | (l & 0xff)]
        r ^= n ^ P[11]
        n = S[r >>> 24]
        n += S[0x100 | ((r >> 16) & 0xff)]
        n ^= S[0x200 | ((r >> 8) & 0xff)]
        n += S[0x300 | (r & 0xff)]
        l ^= n ^ P[12]
        //Iteration 6
        n = S[l >>> 24]
        n += S[0x100 | ((l >> 16) & 0xff)]
        n ^= S[0x200 | ((l >> 8) & 0xff)]
        n += S[0x300 | (l & 0xff)]
        r ^= n ^ P[13]
        n = S[r >>> 24]
        n += S[0x100 | ((r >> 16) & 0xff)]
        n ^= S[0x200 | ((r >> 8) & 0xff)]
        n += S[0x300 | (r & 0xff)]
        l ^= n ^ P[14]
        //Iteration 7
        n = S[l >>> 24]
        n += S[0x100 | ((l >> 16) & 0xff)]
        n ^= S[0x200 | ((l >> 8) & 0xff)]
        n += S[0x300 | (l & 0xff)]
        r ^= n ^ P[15]
        n = S[r >>> 24]
        n += S[0x100 | ((r >> 16) & 0xff)]
        n ^= S[0x200 | ((r >> 8) & 0xff)]
        n += S[0x300 | (r & 0xff)]
        l ^= n ^ P[16]

        lr[off] = r ^ P[BLOWFISH_NUM_ROUNDS + 1]
        lr[off + 1] = l
        return lr
      }

      /**
       * @param {Array.<number>} data
       * @param {number} offp
       * @returns {{key: number, offp: number}}
       * @inner
       */
      function _streamtoword(data, offp) {
        for (var i = 0, word = 0; i < 4; ++i)
          (word = (word << 8) | (data[offp] & 0xff)),
            (offp = (offp + 1) % data.length)
        return { key: word, offp: offp }
      }

      /**
       * @param {Array.<number>} key
       * @param {Array.<number>} P
       * @param {Array.<number>} S
       * @inner
       */
      function _key(key, P, S) {
        var offset = 0,
          lr = [0, 0],
          plen = P.length,
          slen = S.length,
          sw
        for (var i = 0; i < plen; i++)
          (sw = _streamtoword(key, offset)),
            (offset = sw.offp),
            (P[i] = P[i] ^ sw.key)
        for (i = 0; i < plen; i += 2)
          (lr = _encipher(lr, 0, P, S)), (P[i] = lr[0]), (P[i + 1] = lr[1])
        for (i = 0; i < slen; i += 2)
          (lr = _encipher(lr, 0, P, S)), (S[i] = lr[0]), (S[i + 1] = lr[1])
      }

      /**
       * Expensive key schedule Blowfish.
       * @param {Array.<number>} data
       * @param {Array.<number>} key
       * @param {Array.<number>} P
       * @param {Array.<number>} S
       * @inner
       */
      function _ekskey(data, key, P, S) {
        var offp = 0,
          lr = [0, 0],
          plen = P.length,
          slen = S.length,
          sw
        for (var i = 0; i < plen; i++)
          (sw = _streamtoword(key, offp)),
            (offp = sw.offp),
            (P[i] = P[i] ^ sw.key)
        offp = 0
        for (i = 0; i < plen; i += 2)
          (sw = _streamtoword(data, offp)),
            (offp = sw.offp),
            (lr[0] ^= sw.key),
            (sw = _streamtoword(data, offp)),
            (offp = sw.offp),
            (lr[1] ^= sw.key),
            (lr = _encipher(lr, 0, P, S)),
            (P[i] = lr[0]),
            (P[i + 1] = lr[1])
        for (i = 0; i < slen; i += 2)
          (sw = _streamtoword(data, offp)),
            (offp = sw.offp),
            (lr[0] ^= sw.key),
            (sw = _streamtoword(data, offp)),
            (offp = sw.offp),
            (lr[1] ^= sw.key),
            (lr = _encipher(lr, 0, P, S)),
            (S[i] = lr[0]),
            (S[i + 1] = lr[1])
      }

      /**
       * Internaly crypts a string.
       * @param {Array.<number>} b Bytes to crypt
       * @param {Array.<number>} salt Salt bytes to use
       * @param {number} rounds Number of rounds
       * @param {function(Error, Array.<number>=)=} callback Callback receiving the error, if any, and the resulting bytes. If
       *  omitted, the operation will be performed synchronously.
       *  @param {function(number)=} progressCallback Callback called with the current progress
       * @returns {!Array.<number>|undefined} Resulting bytes if callback has been omitted, otherwise `undefined`
       * @inner
       */
      function _crypt(b, salt, rounds, callback, progressCallback) {
        var cdata = C_ORIG.slice(),
          clen = cdata.length,
          err

        // Validate
        if (rounds < 4 || rounds > 31) {
          err = Error("Illegal number of rounds (4-31): " + rounds)
          if (callback) {
            nextTick$1(callback.bind(this, err))
            return
          } else throw err
        }
        if (salt.length !== BCRYPT_SALT_LEN) {
          err = Error(
            "Illegal salt length: " + salt.length + " != " + BCRYPT_SALT_LEN
          )
          if (callback) {
            nextTick$1(callback.bind(this, err))
            return
          } else throw err
        }
        rounds = (1 << rounds) >>> 0

        var P,
          S,
          i = 0,
          j

        //Use typed arrays when available - huge speedup!
        if (Int32Array) {
          P = new Int32Array(P_ORIG)
          S = new Int32Array(S_ORIG)
        } else {
          P = P_ORIG.slice()
          S = S_ORIG.slice()
        }

        _ekskey(salt, b, P, S)

        /**
         * Calcualtes the next round.
         * @returns {Array.<number>|undefined} Resulting array if callback has been omitted, otherwise `undefined`
         * @inner
         */
        function next() {
          if (progressCallback) progressCallback(i / rounds)
          if (i < rounds) {
            var start = Date.now()
            for (; i < rounds; ) {
              i = i + 1
              _key(b, P, S)
              _key(salt, P, S)
              if (Date.now() - start > MAX_EXECUTION_TIME) break
            }
          } else {
            for (i = 0; i < 64; i++)
              for (j = 0; j < clen >> 1; j++) _encipher(cdata, j << 1, P, S)
            var ret = []
            for (i = 0; i < clen; i++)
              ret.push(((cdata[i] >> 24) & 0xff) >>> 0),
                ret.push(((cdata[i] >> 16) & 0xff) >>> 0),
                ret.push(((cdata[i] >> 8) & 0xff) >>> 0),
                ret.push((cdata[i] & 0xff) >>> 0)
            if (callback) {
              callback(null, ret)
              return
            } else return ret
          }
          if (callback) nextTick$1(next)
        }

        // Async
        if (typeof callback !== "undefined") {
          next()

          // Sync
        } else {
          var res
          while (true)
            if (typeof (res = next()) !== "undefined") return res || []
        }
      }

      /**
       * Internally hashes a string.
       * @param {string} s String to hash
       * @param {?string} salt Salt to use, actually never null
       * @param {function(Error, string=)=} callback Callback receiving the error, if any, and the resulting hash. If omitted,
       *  hashing is perormed synchronously.
       *  @param {function(number)=} progressCallback Callback called with the current progress
       * @returns {string|undefined} Resulting hash if callback has been omitted, otherwise `undefined`
       * @inner
       */
      function _hash(s, salt, callback, progressCallback) {
        var err
        if (typeof s !== "string" || typeof salt !== "string") {
          err = Error("Invalid string / salt: Not a string")
          if (callback) {
            nextTick$1(callback.bind(this, err))
            return
          } else throw err
        }

        // Validate the salt
        var minor, offset
        if (salt.charAt(0) !== "$" || salt.charAt(1) !== "2") {
          err = Error("Invalid salt version: " + salt.substring(0, 2))
          if (callback) {
            nextTick$1(callback.bind(this, err))
            return
          } else throw err
        }
        if (salt.charAt(2) === "$")
          (minor = String.fromCharCode(0)), (offset = 3)
        else {
          minor = salt.charAt(2)
          if (
            (minor !== "a" && minor !== "b" && minor !== "y") ||
            salt.charAt(3) !== "$"
          ) {
            err = Error("Invalid salt revision: " + salt.substring(2, 4))
            if (callback) {
              nextTick$1(callback.bind(this, err))
              return
            } else throw err
          }
          offset = 4
        }

        // Extract number of rounds
        if (salt.charAt(offset + 2) > "$") {
          err = Error("Missing salt rounds")
          if (callback) {
            nextTick$1(callback.bind(this, err))
            return
          } else throw err
        }
        var r1 = parseInt(salt.substring(offset, offset + 1), 10) * 10,
          r2 = parseInt(salt.substring(offset + 1, offset + 2), 10),
          rounds = r1 + r2,
          real_salt = salt.substring(offset + 3, offset + 25)
        s += minor >= "a" ? "\x00" : ""

        var passwordb = stringToBytes(s),
          saltb = base64_decode(real_salt, BCRYPT_SALT_LEN)

        /**
         * Finishes hashing.
         * @param {Array.<number>} bytes Byte array
         * @returns {string}
         * @inner
         */
        function finish(bytes) {
          var res = []
          res.push("$2")
          if (minor >= "a") res.push(minor)
          res.push("$")
          if (rounds < 10) res.push("0")
          res.push(rounds.toString())
          res.push("$")
          res.push(base64_encode(saltb, saltb.length))
          res.push(base64_encode(bytes, C_ORIG.length * 4 - 1))
          return res.join("")
        }

        // Sync
        if (typeof callback == "undefined")
          return finish(_crypt(passwordb, saltb, rounds))
        // Async
        else {
          _crypt(
            passwordb,
            saltb,
            rounds,
            function(err, bytes) {
              if (err) callback(err, null)
              else callback(null, finish(bytes))
            },
            progressCallback
          )
        }
      }

      /**
       * Encodes a byte array to base64 with up to len bytes of input, using the custom bcrypt alphabet.
       * @function
       * @param {!Array.<number>} b Byte array
       * @param {number} len Maximum input length
       * @returns {string}
       * @expose
       */
      bcrypt.encodeBase64 = base64_encode

      /**
       * Decodes a base64 encoded string to up to len bytes of output, using the custom bcrypt alphabet.
       * @function
       * @param {string} s String to decode
       * @param {number} len Maximum output length
       * @returns {!Array.<number>}
       * @expose
       */
      bcrypt.decodeBase64 = base64_decode

      return bcrypt
    })
  })

  // this is the combinator function
  const $$ = (...funcs) => arg => lodash_1(funcs)(arg)

  // this is the pipe function
  const $ = (arg, funcs) => $$(...funcs)(arg)

  const keySep = "/"
  const trimKeySep = str => lodash_10(str, keySep)
  const splitByKeySep = str => fp_3(keySep)(str)
  const safeKey = key =>
    lodash_12(`${keySep}${trimKeySep(key)}`, `${keySep}${keySep}`, keySep)
  const joinKey = (...strs) => {
    const paramsOrArray = (strs.length === 1) & fp_11(strs[0]) ? strs[0] : strs
    return $(paramsOrArray, [
      fp_13(s => !fp_2(s) && !fp_29(s) && s.toString().length > 0),
      fp_18(keySep),
      safeKey,
    ])
  }
  const splitKey = $$(trimKeySep, splitByKeySep)

  const configFolder = `${keySep}.config`
  const fieldDefinitions = joinKey(configFolder, "fields.json")
  const templateDefinitions = joinKey(configFolder, "templates.json")
  const appDefinitionFile = joinKey(configFolder, "appDefinition.json")

  const not = func => val => !func(val)
  const isDefined = not(fp_2)
  const isNonNull = not(fp_29)
  const isNotNaN = not(fp_36)

  const allTrue = (...funcArgs) => val =>
    fp_7(
      (result, conditionFunc) =>
        (fp_29(result) || result == true) && conditionFunc(val),
      null
    )(funcArgs)

  const isSomething = allTrue(isDefined, isNonNull, isNotNaN)
  const isNothing = not(isSomething)

  const none = predicate => collection => !fp_10(predicate)(collection)

  const all = predicate => collection => none(v => !predicate(v))(collection)

  const isNotEmpty = ob => !fp_16(ob)
  const isNonEmptyString = allTrue(fp_27, isNotEmpty)
  const tryOr = failFunc => (func, ...args) => {
    try {
      return func.apply(null, ...args)
    } catch (_) {
      return failFunc()
    }
  }
  const causesException = func => {
    try {
      func()
      return false
    } catch (e) {
      return true
    }
  }

  const executesWithoutException = func => !causesException(func)

  const handleErrorWith = returnValInError => tryOr(fp_21(returnValInError))

  const handleErrorWithUndefined = handleErrorWith(undefined)

  const switchCase = (...cases) => value => {
    const nextCase = () => lodash_2(cases)[0](value)
    const nextResult = () => lodash_2(cases)[1](value)

    if (fp_16(cases)) return // undefined
    if (nextCase() === true) return nextResult()
    return switchCase(...lodash_5(cases))(value)
  }
  const isOneOf = (...vals) => val => fp_19(val)(vals)
  const defaultCase = fp_21(true)

  const isSafeInteger = n =>
    fp_37(n) && n <= Number.MAX_SAFE_INTEGER && n >= 0 - Number.MAX_SAFE_INTEGER

  const toDateOrNull = s => (fp_29(s) ? null : fp_32(s) ? s : new Date(s))
  const toBoolOrNull = s => (fp_29(s) ? null : s === "true" || s === true)
  const toNumberOrNull = s => (fp_29(s) ? null : fp_38(s))

  const isArrayOfString = opts => fp_11(opts) && all(fp_27)(opts)

  const makerule = (field, error, isValid) => ({ field, error, isValid })

  var filters = new Map()
  var limiters = new Map()

  function compileRawExpression(src) {
    return new Function(
      "context",
      "tempVars", // eslint-disable-line
      "const sandbox = $nxCompileToSandbox(context, tempVars)\n    try { with (sandbox) { return " +
        src +
        " } } catch (err) {\n      if (!(err instanceof TypeError)) throw err\n    }\n    $nxClearSandbox()"
    )
  }

  function compileRawCode(src) {
    return new Function(
      "context",
      "tempVars", // eslint-disable-line
      "const sandbox = $nxCompileToSandbox(context, tempVars)\n    with (sandbox) { " +
        src +
        " }\n    $nxClearSandbox()"
    )
  }

  var filterRegex = /(?:[^\|]|\|\|)+/g
  var limiterRegex = /(?:[^&]|&&)+/g
  var argsRegex = /\S+/g

  function parseExpression(src) {
    var tokens = src.match(filterRegex)
    if (tokens.length === 1) {
      return compileRawExpression(tokens[0])
    }

    var expression = {
      exec: compileRawExpression(tokens[0]),
      filters: [],
    }
    for (var i = 1; i < tokens.length; i++) {
      var filterTokens = tokens[i].match(argsRegex)
      var filterName = filterTokens.shift()
      var effect = filters.get(filterName)
      if (!effect) {
        throw new Error("There is no filter named: " + filterName + ".")
      }
      expression.filters.push({
        effect: effect,
        argExpressions: filterTokens.map(compileRawExpression),
      })
    }
    return expression
  }

  function parseCode(src) {
    var tokens = src.match(limiterRegex)
    if (tokens.length === 1) {
      return compileRawCode(tokens[0])
    }

    var code = {
      exec: compileRawCode(tokens[0]),
      limiters: [],
    }
    for (var i = 1; i < tokens.length; i++) {
      var limiterTokens = tokens[i].match(argsRegex)
      var limiterName = limiterTokens.shift()
      var effect = limiters.get(limiterName)
      if (!effect) {
        throw new Error("There is no limiter named: " + limiterName + ".")
      }
      code.limiters.push({
        effect: effect,
        argExpressions: limiterTokens.map(compileRawExpression),
      })
    }
    return code
  }

  var expressionCache = new Map()
  var codeCache = new Map()

  function compileExpression(src) {
    if (typeof src !== "string") {
      throw new TypeError("First argument must be a string.")
    }
    var expression = expressionCache.get(src)
    if (!expression) {
      expression = parseExpression(src)
      expressionCache.set(src, expression)
    }

    if (typeof expression === "function") {
      return expression
    }

    return function evaluateExpression(context, tempVars) {
      var value = expression.exec(context, tempVars)
      for (var i = 0, list = expression.filters; i < list.length; i += 1) {
        var filter = list[i]

        var args = filter.argExpressions.map(evaluateArgExpression, context)
        value = filter.effect.apply(filter, [value].concat(args))
      }
      return value
    }
  }

  function compileCode(src) {
    if (typeof src !== "string") {
      throw new TypeError("First argument must be a string.")
    }
    var code = codeCache.get(src)
    if (!code) {
      code = parseCode(src)
      codeCache.set(src, code)
    }

    if (typeof code === "function") {
      return code
    }

    var context = {}
    return function evaluateCode(state, tempVars) {
      var i = 0
      function next() {
        Object.assign(context, tempVars)
        if (i < code.limiters.length) {
          var limiter = code.limiters[i++]
          var args = limiter.argExpressions.map(evaluateArgExpression, state)
          limiter.effect.apply(limiter, [next, context].concat(args))
        } else {
          code.exec(state, tempVars)
        }
      }
      next()
    }
  }

  function evaluateArgExpression(argExpression) {
    return argExpression(this)
  }

  var hasHandler = { has: has }
  var allHandlers = { has: has, get: get$1 }
  var globals = new Set()
  var temp

  var globalObj
  if (typeof window !== "undefined") {
    globalObj = window
  } // eslint-disable-line
  else if (typeof global$1 !== "undefined") {
    globalObj = global$1
  } // eslint-disable-line
  else if (typeof self !== "undefined") {
    globalObj = self
  } // eslint-disable-line
  globalObj.$nxCompileToSandbox = toSandbox
  globalObj.$nxClearSandbox = clearSandbox

  function has(target, key) {
    return globals.has(key) ? key in target : true
  }

  function get$1(target, key) {
    return key in temp ? temp[key] : target[key]
  }

  function toSandbox(obj, tempVars) {
    if (tempVars) {
      temp = tempVars
      return new Proxy(obj, allHandlers)
    }
    return new Proxy(obj, hasHandler)
  }

  function clearSandbox() {
    temp = undefined
  }

  const compileFilter = index => compileExpression(index.filter)

  const compileMap = index => compileCode(index.map)

  const indexTypes = { reference: "reference", ancestor: "ancestor" }

  const indexRuleSet = [
    makerule("map", "index has no map function", index =>
      isNonEmptyString(index.map)
    ),
    makerule(
      "map",
      "index's map function does not compile",
      index =>
        !isNonEmptyString(index.map) ||
        executesWithoutException(() => compileMap(index))
    ),
    makerule(
      "filter",
      "index's filter function does not compile",
      index =>
        !isNonEmptyString(index.filter) ||
        executesWithoutException(() => compileFilter(index))
    ),
    makerule("name", "must declare a name for index", index =>
      isNonEmptyString(index.name)
    ),
    makerule(
      "name",
      "there is a duplicate named index on this node",
      index =>
        fp_16(index.name) ||
        fp_17("name")(index.parent().indexes)[index.name] === 1
    ),
    makerule(
      "indexType",
      "reference index may only exist on a record node",
      index =>
        isRecord(index.parent()) || index.indexType !== indexTypes.reference
    ),
    makerule(
      "indexType",
      `index type must be one of: ${fp_18(", ")(fp_14(indexTypes))}`,
      index => fp_19(index.indexType)(fp_14(indexTypes))
    ),
  ]

  const getFlattenedHierarchy = (appHierarchy, useCached = true) => {
    if (isSomething(appHierarchy.getFlattenedHierarchy) && useCached) {
      return appHierarchy.getFlattenedHierarchy()
    }

    const flattenHierarchy = (currentNode, flattened) => {
      flattened.push(currentNode)
      if (
        (!currentNode.children || currentNode.children.length === 0) &&
        (!currentNode.indexes || currentNode.indexes.length === 0) &&
        (!currentNode.aggregateGroups ||
          currentNode.aggregateGroups.length === 0)
      ) {
        return flattened
      }

      const unionIfAny = l2 => l1 => fp_6(l1)(!l2 ? [] : l2)

      const children = $(
        [],
        [
          unionIfAny(currentNode.children),
          unionIfAny(currentNode.indexes),
          unionIfAny(currentNode.aggregateGroups),
        ]
      )

      for (const child of children) {
        flattenHierarchy(child, flattened)
      }
      return flattened
    }

    appHierarchy.getFlattenedHierarchy = () =>
      flattenHierarchy(appHierarchy, [])
    return appHierarchy.getFlattenedHierarchy()
  }

  const getExactNodeForKey = appHierarchy => key =>
    $(appHierarchy, [
      getFlattenedHierarchy,
      fp_1(n => new RegExp(`${n.pathRegx()}$`).test(key)),
    ])

  const getNodeForCollectionPath = appHierarchy => collectionKey =>
    $(appHierarchy, [
      getFlattenedHierarchy,
      fp_1(
        n =>
          isCollectionRecord(n) &&
          new RegExp(`${n.collectionPathRegx()}$`).test(collectionKey)
      ),
    ])

  const getNode = (appHierarchy, nodeKey) =>
    $(appHierarchy, [
      getFlattenedHierarchy,
      fp_1(
        n =>
          n.nodeKey() === nodeKey ||
          (isCollectionRecord(n) && n.collectionNodeKey() === nodeKey)
      ),
    ])

  const getNodeByKeyOrNodeKey = (appHierarchy, keyOrNodeKey) => {
    const nodeByKey = getExactNodeForKey(appHierarchy)(keyOrNodeKey)
    return isNothing(nodeByKey)
      ? getNode(appHierarchy, keyOrNodeKey)
      : nodeByKey
  }

  const isNode = (appHierarchy, key) =>
    isSomething(getExactNodeForKey(appHierarchy)(key))

  const isRecord = node => isSomething(node) && node.type === "record"
  const isSingleRecord = node => isRecord(node) && node.isSingle
  const isCollectionRecord = node => isRecord(node) && !node.isSingle
  const isRoot = node => isSomething(node) && node.isRoot()

  const getSafeFieldParser = (tryParse, defaultValueFunctions) => (
    field,
    record
  ) => {
    if (fp_25(field.name)(record)) {
      return getSafeValueParser(
        tryParse,
        defaultValueFunctions
      )(record[field.name])
    }
    return defaultValueFunctions[field.getUndefinedValue]()
  }

  const getSafeValueParser = (tryParse, defaultValueFunctions) => value => {
    const parsed = tryParse(value)
    if (parsed.success) {
      return parsed.value
    }
    return defaultValueFunctions.default()
  }

  const getNewValue = (tryParse, defaultValueFunctions) => field => {
    const getInitialValue =
      fp_2(field) || fp_2(field.getInitialValue)
        ? "default"
        : field.getInitialValue

    return fp_25(getInitialValue)(defaultValueFunctions)
      ? defaultValueFunctions[getInitialValue]()
      : getSafeValueParser(tryParse, defaultValueFunctions)(getInitialValue)
  }

  const typeFunctions = specificFunctions =>
    lodash_13(
      {
        value: fp_21,
        null: fp_21(null),
      },
      specificFunctions
    )

  const validateTypeConstraints = validationRules => async (
    field,
    record,
    context
  ) => {
    const fieldValue = record[field.name]
    const validateRule = async r =>
      !(await r.isValid(fieldValue, field.typeOptions, context))
        ? r.getMessage(fieldValue, field.typeOptions)
        : ""

    const errors = []
    for (const r of validationRules) {
      const err = await validateRule(r)
      if (isNotEmpty(err)) errors.push(err)
    }

    return errors
  }

  const getDefaultOptions = fp_26(v => v.defaultValue)

  const makerule$1 = (isValid, getMessage) => ({ isValid, getMessage })
  const parsedFailed = val => ({ success: false, value: val })
  const parsedSuccess = val => ({ success: true, value: val })
  const getDefaultExport = (
    name,
    tryParse,
    functions,
    options,
    validationRules,
    sampleValue,
    stringify
  ) => ({
    getNew: getNewValue(tryParse, functions),
    safeParseField: getSafeFieldParser(tryParse, functions),
    safeParseValue: getSafeValueParser(tryParse, functions),
    tryParse,
    name,
    getDefaultOptions: () => getDefaultOptions(fp_9(options)),
    optionDefinitions: options,
    validateTypeConstraints: validateTypeConstraints(validationRules),
    sampleValue,
    stringify: val => (val === null || val === undefined ? "" : stringify(val)),
    getDefaultValue: functions.default,
  })

  const stringFunctions = typeFunctions({
    default: fp_21(null),
  })

  const stringTryParse = switchCase(
    [fp_27, parsedSuccess],
    [fp_29, parsedSuccess],
    [defaultCase, v => parsedSuccess(v.toString())]
  )

  const options = {
    maxLength: {
      defaultValue: null,
      isValid: n => n === null || (isSafeInteger(n) && n > 0),
      requirementDescription:
        "max length must be null (no limit) or a greater than zero integer",
      parse: toNumberOrNull,
    },
    values: {
      defaultValue: null,
      isValid: v =>
        v === null || (isArrayOfString(v) && v.length > 0 && v.length < 10000),
      requirementDescription:
        "'values' must be null (no values) or an arry of at least one string",
      parse: s => s,
    },
    allowDeclaredValuesOnly: {
      defaultValue: false,
      isValid: fp_28,
      requirementDescription: "allowDeclaredValuesOnly must be true or false",
      parse: toBoolOrNull,
    },
  }

  const typeConstraints = [
    makerule$1(
      async (val, opts) =>
        val === null || opts.maxLength === null || val.length <= opts.maxLength,
      (val, opts) => `value exceeds maximum length of ${opts.maxLength}`
    ),
    makerule$1(
      async (val, opts) =>
        val === null ||
        opts.allowDeclaredValuesOnly === false ||
        fp_19(val)(opts.values),
      val => `"${val}" does not exist in the list of allowed values`
    ),
  ]

  var string = getDefaultExport(
    "string",
    stringTryParse,
    stringFunctions,
    options,
    typeConstraints,
    "abcde",
    str => str
  )

  const boolFunctions = typeFunctions({
    default: fp_21(null),
  })

  const boolTryParse = switchCase(
    [fp_28, parsedSuccess],
    [fp_29, parsedSuccess],
    [isOneOf("true", "1", "yes", "on"), () => parsedSuccess(true)],
    [isOneOf("false", "0", "no", "off"), () => parsedSuccess(false)],
    [defaultCase, parsedFailed]
  )

  const options$1 = {
    allowNulls: {
      defaultValue: true,
      isValid: fp_28,
      requirementDescription: "must be a true or false",
      parse: toBoolOrNull,
    },
  }

  const typeConstraints$1 = [
    makerule$1(
      async (val, opts) => opts.allowNulls === true || val !== null,
      () => "field cannot be null"
    ),
  ]

  var bool = getDefaultExport(
    "bool",
    boolTryParse,
    boolFunctions,
    options$1,
    typeConstraints$1,
    true,
    JSON.stringify
  )

  const numberFunctions = typeFunctions({
    default: fp_21(null),
  })

  const parseStringtoNumberOrNull = s => {
    const num = Number(s)
    return isNaN(num) ? parsedFailed(s) : parsedSuccess(num)
  }

  const numberTryParse = switchCase(
    [fp_30, parsedSuccess],
    [fp_27, parseStringtoNumberOrNull],
    [fp_29, parsedSuccess],
    [defaultCase, parsedFailed]
  )

  const options$2 = {
    maxValue: {
      defaultValue: Number.MAX_SAFE_INTEGER,
      isValid: isSafeInteger,
      requirementDescription: "must be a valid integer",
      parse: toNumberOrNull,
    },
    minValue: {
      defaultValue: 0 - Number.MAX_SAFE_INTEGER,
      isValid: isSafeInteger,
      requirementDescription: "must be a valid integer",
      parse: toNumberOrNull,
    },
    decimalPlaces: {
      defaultValue: 0,
      isValid: n => isSafeInteger(n) && n >= 0,
      requirementDescription: "must be a positive integer",
      parse: toNumberOrNull,
    },
  }

  const getDecimalPlaces = val => {
    const splitDecimal = val.toString().split(".")
    if (splitDecimal.length === 1) return 0
    return splitDecimal[1].length
  }

  const typeConstraints$2 = [
    makerule$1(
      async (val, opts) =>
        val === null || opts.minValue === null || val >= opts.minValue,
      (val, opts) =>
        `value (${val.toString()}) must be greater than or equal to ${
          opts.minValue
        }`
    ),
    makerule$1(
      async (val, opts) =>
        val === null || opts.maxValue === null || val <= opts.maxValue,
      (val, opts) =>
        `value (${val.toString()}) must be less than or equal to ${
          opts.minValue
        } options`
    ),
    makerule$1(
      async (val, opts) =>
        val === null || opts.decimalPlaces >= getDecimalPlaces(val),
      (val, opts) =>
        `value (${val.toString()}) must have ${
          opts.decimalPlaces
        } decimal places or less`
    ),
  ]

  var number = getDefaultExport(
    "number",
    numberTryParse,
    numberFunctions,
    options$2,
    typeConstraints$2,
    1,
    num => num.toString()
  )

  const dateFunctions = typeFunctions({
    default: fp_21(null),
    now: () => new Date(),
  })

  const isValidDate = d => d instanceof Date && !isNaN(d)

  const parseStringToDate = s =>
    switchCase(
      [isValidDate, parsedSuccess],
      [defaultCase, parsedFailed]
    )(new Date(s))

  const dateTryParse = switchCase(
    [fp_32, parsedSuccess],
    [fp_27, parseStringToDate],
    [fp_29, parsedSuccess],
    [defaultCase, parsedFailed]
  )

  const options$3 = {
    maxValue: {
      defaultValue: new Date(32503680000000),
      isValid: fp_32,
      requirementDescription: "must be a valid date",
      parse: toDateOrNull,
    },
    minValue: {
      defaultValue: new Date(-8520336000000),
      isValid: fp_32,
      requirementDescription: "must be a valid date",
      parse: toDateOrNull,
    },
  }

  const typeConstraints$3 = [
    makerule$1(
      async (val, opts) =>
        val === null || opts.minValue === null || val >= opts.minValue,
      (val, opts) =>
        `value (${val.toString()}) must be greater than or equal to ${
          opts.minValue
        }`
    ),
    makerule$1(
      async (val, opts) =>
        val === null || opts.maxValue === null || val <= opts.maxValue,
      (val, opts) =>
        `value (${val.toString()}) must be less than or equal to ${
          opts.minValue
        } options`
    ),
  ]

  var datetime = getDefaultExport(
    "datetime",
    dateTryParse,
    dateFunctions,
    options$3,
    typeConstraints$3,
    new Date(1984, 4, 1),
    date => JSON.stringify(date).replace(new RegExp('"', "g"), "")
  )

  const arrayFunctions = () =>
    typeFunctions({
      default: fp_21([]),
    })

  const mapToParsedArrary = type =>
    $$(
      fp_12(i => type.safeParseValue(i)),
      parsedSuccess
    )

  const arrayTryParse = type =>
    switchCase([fp_11, mapToParsedArrary(type)], [defaultCase, parsedFailed])

  const typeName = type => `array<${type}>`

  const options$4 = {
    maxLength: {
      defaultValue: 10000,
      isValid: isSafeInteger,
      requirementDescription: "must be a positive integer",
      parse: toNumberOrNull,
    },
    minLength: {
      defaultValue: 0,
      isValid: n => isSafeInteger(n) && n >= 0,
      requirementDescription: "must be a positive integer",
      parse: toNumberOrNull,
    },
  }

  const typeConstraints$4 = [
    makerule$1(
      async (val, opts) => val === null || val.length >= opts.minLength,
      (val, opts) => `must choose ${opts.minLength} or more options`
    ),
    makerule$1(
      async (val, opts) => val === null || val.length <= opts.maxLength,
      (val, opts) => `cannot choose more than ${opts.maxLength} options`
    ),
  ]

  var array = type =>
    getDefaultExport(
      typeName(type.name),
      arrayTryParse(type),
      arrayFunctions(),
      options$4,
      typeConstraints$4,
      [type.sampleValue],
      JSON.stringify
    )

  const referenceNothing = () => ({ key: "" })

  const referenceFunctions = typeFunctions({
    default: referenceNothing,
  })

  const hasStringValue = (ob, path) => fp_25(path)(ob) && fp_27(ob[path])

  const isObjectWithKey = v => fp_31(v) && hasStringValue(v, "key")

  const tryParseFromString = s => {
    try {
      const asObj = JSON.parse(s)
      if (isObjectWithKey) {
        return parsedSuccess(asObj)
      }
    } catch (_) {
      // EMPTY
    }

    return parsedFailed(s)
  }

  const referenceTryParse = v =>
    switchCase(
      [isObjectWithKey, parsedSuccess],
      [fp_27, tryParseFromString],
      [fp_29, () => parsedSuccess(referenceNothing())],
      [defaultCase, parsedFailed]
    )(v)

  const options$5 = {
    indexNodeKey: {
      defaultValue: null,
      isValid: isNonEmptyString,
      requirementDescription: "must be a non-empty string",
      parse: s => s,
    },
    displayValue: {
      defaultValue: "",
      isValid: isNonEmptyString,
      requirementDescription: "must be a non-empty string",
      parse: s => s,
    },
    reverseIndexNodeKeys: {
      defaultValue: null,
      isValid: v => isArrayOfString(v) && v.length > 0,
      requirementDescription: "must be a non-empty array of strings",
      parse: s => s,
    },
  }

  const isEmptyString = s => fp_27(s) && fp_16(s)

  const ensureReferenceExists = async (val, opts, context) =>
    isEmptyString(val.key) || (await context.referenceExists(opts, val.key))

  const typeConstraints$5 = [
    makerule$1(
      ensureReferenceExists,
      (val, opts) =>
        `"${val[opts.displayValue]}" does not exist in options list (key: ${
          val.key
        })`
    ),
  ]

  var reference = getDefaultExport(
    "reference",
    referenceTryParse,
    referenceFunctions,
    options$5,
    typeConstraints$5,
    { key: "key", value: "value" },
    JSON.stringify
  )

  const illegalCharacters = "*?\\/:<>|\0\b\f\v"

  const isLegalFilename = filePath => {
    const fn = fileName(filePath)
    return (
      fn.length <= 255 &&
      fp_23(fn.split(""))(illegalCharacters.split("")).length === 0 &&
      none(f => f === "..")(splitKey(filePath))
    )
  }

  const fileNothing = () => ({ relativePath: "", size: 0 })

  const fileFunctions = typeFunctions({
    default: fileNothing,
  })

  const fileTryParse = v =>
    switchCase(
      [isValidFile, parsedSuccess],
      [fp_29, () => parsedSuccess(fileNothing())],
      [defaultCase, parsedFailed]
    )(v)

  const fileName = filePath => $(filePath, [splitKey, fp_5])

  const isValidFile = f =>
    !fp_29(f) &&
    fp_25("relativePath")(f) &&
    fp_25("size")(f) &&
    fp_30(f.size) &&
    fp_27(f.relativePath) &&
    isLegalFilename(f.relativePath)

  const options$6 = {}

  const typeConstraints$6 = []

  var file = getDefaultExport(
    "file",
    fileTryParse,
    fileFunctions,
    options$6,
    typeConstraints$6,
    { relativePath: "some_file.jpg", size: 1000 },
    JSON.stringify
  )

  const allTypes = () => {
    const basicTypes = {
      string,
      number,
      datetime,
      bool,
      reference,
      file,
    }

    const arrays = $(basicTypes, [
      fp_14,
      fp_12(k => {
        const kvType = {}
        const concreteArray = array(basicTypes[k])
        kvType[concreteArray.name] = concreteArray
        return kvType
      }),
      types => lodash_14({}, ...types),
    ])

    return lodash_13({}, basicTypes, arrays)
  }

  const all$1 = allTypes()

  const getType = typeName => {
    if (!fp_25(typeName)(all$1))
      throw new BadRequestError(`Do not recognise type ${typeName}`)
    return all$1[typeName]
  }

  const getNewFieldValue = field => getType(field.type).getNew(field)

  const AUTH_FOLDER = "/.auth"
  const USERS_LIST_FILE = joinKey(AUTH_FOLDER, "users.json")
  const USERS_LOCK_FILE = joinKey(AUTH_FOLDER, "users_lock")
  const ACCESS_LEVELS_FILE = joinKey(AUTH_FOLDER, "access_levels.json")
  const ACCESS_LEVELS_LOCK_FILE = joinKey(AUTH_FOLDER, "access_levels_lock")

  const permissionTypes = {
    CREATE_RECORD: "create record",
    UPDATE_RECORD: "update record",
    READ_RECORD: "read record",
    DELETE_RECORD: "delete record",
    READ_INDEX: "read index",
    MANAGE_INDEX: "manage index",
    MANAGE_COLLECTION: "manage collection",
    WRITE_TEMPLATES: "write templates",
    CREATE_USER: "create user",
    SET_PASSWORD: "set password",
    CREATE_TEMPORARY_ACCESS: "create temporary access",
    ENABLE_DISABLE_USER: "enable or disable user",
    WRITE_ACCESS_LEVELS: "write access levels",
    LIST_USERS: "list users",
    LIST_ACCESS_LEVELS: "list access levels",
    EXECUTE_ACTION: "execute action",
    SET_USER_ACCESS_LEVELS: "set user access levels",
  }

  const isAuthorized = app => (permissionType, resourceKey) =>
    apiWrapperSync(
      app,
      events.authApi.isAuthorized,
      alwaysAuthorized,
      { resourceKey, permissionType },
      _isAuthorized,
      app,
      permissionType,
      resourceKey
    )

  const _isAuthorized = (app, permissionType, resourceKey) => {
    if (!app.user) {
      return false
    }

    const validType = $(permissionTypes, [fp_34, fp_19(permissionType)])

    if (!validType) {
      return false
    }

    const permMatchesResource = userperm => {
      const nodeKey = isNothing(resourceKey)
        ? null
        : isNode(app.hierarchy, resourceKey)
        ? getNodeByKeyOrNodeKey(app.hierarchy, resourceKey).nodeKey()
        : resourceKey

      return (
        userperm.type === permissionType &&
        (isNothing(resourceKey) || nodeKey === userperm.nodeKey)
      )
    }

    return $(app.user.permissions, [fp_10(permMatchesResource)])
  }

  const nodePermission = type => ({
    add: (nodeKey, accessLevel) =>
      accessLevel.permissions.push({ type, nodeKey }),
    isAuthorized: resourceKey => app => isAuthorized(app)(type, resourceKey),
    isNode: true,
    get: nodeKey => ({ type, nodeKey }),
  })

  const staticPermission = type => ({
    add: accessLevel => accessLevel.permissions.push({ type }),
    isAuthorized: app => isAuthorized(app)(type),
    isNode: false,
    get: () => ({ type }),
  })

  const createRecord = nodePermission(permissionTypes.CREATE_RECORD)

  const updateRecord = nodePermission(permissionTypes.UPDATE_RECORD)

  const deleteRecord = nodePermission(permissionTypes.DELETE_RECORD)

  const readRecord = nodePermission(permissionTypes.READ_RECORD)

  const writeTemplates = staticPermission(permissionTypes.WRITE_TEMPLATES)

  const createUser = staticPermission(permissionTypes.CREATE_USER)

  const setPassword = staticPermission(permissionTypes.SET_PASSWORD)

  const readIndex = nodePermission(permissionTypes.READ_INDEX)

  const manageIndex = staticPermission(permissionTypes.MANAGE_INDEX)

  const manageCollection = staticPermission(permissionTypes.MANAGE_COLLECTION)

  const createTemporaryAccess = staticPermission(
    permissionTypes.CREATE_TEMPORARY_ACCESS
  )

  const enableDisableUser = staticPermission(
    permissionTypes.ENABLE_DISABLE_USER
  )

  const writeAccessLevels = staticPermission(
    permissionTypes.WRITE_ACCESS_LEVELS
  )

  const listUsers = staticPermission(permissionTypes.LIST_USERS)

  const listAccessLevels = staticPermission(permissionTypes.LIST_ACCESS_LEVELS)

  const setUserAccessLevels = staticPermission(
    permissionTypes.SET_USER_ACCESS_LEVELS
  )

  const executeAction = nodePermission(permissionTypes.EXECUTE_ACTION)

  const alwaysAuthorized = () => true

  const permission = {
    createRecord,
    updateRecord,
    deleteRecord,
    readRecord,
    writeTemplates,
    createUser,
    setPassword,
    readIndex,
    createTemporaryAccess,
    enableDisableUser,
    writeAccessLevels,
    listUsers,
    listAccessLevels,
    manageIndex,
    manageCollection,
    executeAction,
    setUserAccessLevels,
  }

  const getNew = app => (collectionKey, recordTypeName) => {
    const recordNode = getRecordNode(app, collectionKey)
    collectionKey = safeKey(collectionKey)
    return apiWrapperSync(
      app,
      events.recordApi.getNew,
      permission.createRecord.isAuthorized(recordNode.nodeKey()),
      { collectionKey, recordTypeName },
      _getNew,
      recordNode,
      collectionKey
    )
  }

  const _getNew = (recordNode, collectionKey) =>
    constructRecord(recordNode, getNewFieldValue, collectionKey)

  const getRecordNode = (app, collectionKey) => {
    collectionKey = safeKey(collectionKey)
    return getNodeForCollectionPath(app.hierarchy)(collectionKey)
  }

  const getNewChild = app => (recordKey, collectionName, recordTypeName) =>
    getNew(app)(joinKey(recordKey, collectionName), recordTypeName)

  const constructRecord = (recordNode, getFieldValue, collectionKey) => {
    const record = $(recordNode.fields, [fp_35("name"), fp_26(getFieldValue)])

    record.id = `${recordNode.nodeId}-${shortid_1()}`
    record.key = isSingleRecord(recordNode)
      ? joinKey(collectionKey, recordNode.name)
      : joinKey(collectionKey, record.id)
    record.isNew = true
    record.type = recordNode.name
    return record
  }

  const pathRegxMaker = node => () =>
    node.nodeKey().replace(/{id}/g, "[a-zA-Z0-9_-]+")

  const nodeKeyMaker = node => () =>
    switchCase(
      [
        n => isRecord(n) && !isSingleRecord(n),
        n =>
          joinKey(
            node.parent().nodeKey(),
            node.collectionName,
            `${n.nodeId}-{id}`
          ),
      ],

      [isRoot, fp_21("/")],

      [defaultCase, n => joinKey(node.parent().nodeKey(), n.name)]
    )(node)

  const construct = parent => node => {
    node.nodeKey = nodeKeyMaker(node)
    node.pathRegx = pathRegxMaker(node)
    node.parent = fp_21(parent)
    node.isRoot = () =>
      isNothing(parent) && node.name === "root" && node.type === "root"
    if (isCollectionRecord(node)) {
      node.collectionNodeKey = () =>
        joinKey(parent.nodeKey(), node.collectionName)
      node.collectionPathRegx = () =>
        joinKey(parent.pathRegx(), node.collectionName)
    }
    return node
  }

  const constructHierarchy = (node, parent) => {
    construct(parent)(node)
    if (node.indexes) {
      lodash_4(node.indexes, child => constructHierarchy(child, node))
    }
    if (node.aggregateGroups) {
      lodash_4(node.aggregateGroups, child => constructHierarchy(child, node))
    }
    if (node.children && node.children.length > 0) {
      lodash_4(node.children, child => constructHierarchy(child, node))
    }
    if (node.fields) {
      lodash_4(node.fields, f =>
        lodash_4(f.typeOptions, (val, key) => {
          const def = all$1[f.type].optionDefinitions[key]
          if (!def) {
            // unknown typeOption
            delete f.typeOptions[key]
          } else {
            f.typeOptions[key] = def.parse(val)
          }
        })
      )
    }
    return node
  }

  const createCoreApi = (appDefinition, user) => {
    const app = createCoreApp(appDefinition, user)

    return {
      recordApi: {
        getNew: getNew(app),
        getNewChild: getNewChild(app),
      },

      templateApi: {
        constructHierarchy,
      },
    }
  }

  const BB_STATE_BINDINGPATH = "##bbstate"
  const BB_STATE_BINDINGSOURCE = "##bbsource"
  const BB_STATE_FALLBACK = "##bbstatefallback"

  const isBound = prop =>
    prop !== undefined && prop[BB_STATE_BINDINGPATH] !== undefined

  const takeStateFromStore = prop =>
    prop[BB_STATE_BINDINGSOURCE] === undefined ||
    prop[BB_STATE_BINDINGSOURCE] === "store"

  const takeStateFromContext = prop =>
    prop[BB_STATE_BINDINGSOURCE] === "context"

  const takeStateFromEventParameters = prop =>
    prop[BB_STATE_BINDINGSOURCE] === "event"

  const getState = (s, path, fallback) => {
    if (!s) return fallback
    if (!path || path.length === 0) return fallback

    if (path === "$") return s

    const pathParts = path.split(".")
    const safeGetPath = (obj, currentPartIndex = 0) => {
      const currentKey = pathParts[currentPartIndex]

      if (pathParts.length - 1 == currentPartIndex) {
        const value = obj[currentKey]
        if (fp_2(value)) return fallback
        else return value
      }

      if (
        obj[currentKey] === null ||
        obj[currentKey] === undefined ||
        !fp_8(obj[currentKey])
      ) {
        return fallback
      }

      return safeGetPath(obj[currentKey], currentPartIndex + 1)
    }

    return safeGetPath(s)
  }

  const getStateOrValue = (globalState, prop, currentContext) => {
    if (!prop) return prop

    if (isBound(prop)) {
      const stateToUse = takeStateFromStore(prop) ? globalState : currentContext

      return getState(
        stateToUse,
        prop[BB_STATE_BINDINGPATH],
        prop[BB_STATE_FALLBACK]
      )
    }

    if (prop.path && prop.source) {
      const stateToUse = prop.source === "store" ? globalState : currentContext

      return getState(stateToUse, prop.path, prop.fallback)
    }

    return prop
  }

  const setState = (store, path, value) => {
    if (!path || path.length === 0) return

    const pathParts = path.split(".")
    const safeSetPath = (obj, currentPartIndex = 0) => {
      const currentKey = pathParts[currentPartIndex]

      if (pathParts.length - 1 == currentPartIndex) {
        obj[currentKey] = value
        return
      }

      if (
        obj[currentKey] === null ||
        obj[currentKey] === undefined ||
        !fp_8(obj[currentKey])
      ) {
        obj[currentKey] = {}
      }

      safeSetPath(obj[currentKey], currentPartIndex + 1)
    }

    store.update(s => {
      safeSetPath(s)
      return s
    })
  }

  const setStateFromBinding = (store, binding, value) =>
    setState(store, binding[BB_STATE_BINDINGPATH], value)

  const trimSlash = str => str.replace(/^\/+|\/+$/g, "")

  const ERROR = "##error_message"

  const loadRecord = api => async ({ recordKey, statePath }) => {
    if (!recordKey) {
      api.error("Load Record: record key not set")
      return
    }

    if (!statePath) {
      api.error("Load Record: state path not set")
      return
    }

    const record = await api.get({
      url: `/api/record/${trimSlash(recordKey)}`,
    })

    if (api.isSuccess(record)) api.setState(statePath, record)
  }

  const listRecords = api => async ({ indexKey, statePath }) => {
    if (!indexKey) {
      api.error("Load Record: record key not set")
      return
    }

    if (!statePath) {
      api.error("Load Record: state path not set")
      return
    }

    const records = await api.get({
      url: `/api/listRecords/${trimSlash(indexKey)}`,
    })

    if (api.isSuccess(records)) api.setState(statePath, records)
  }

  const USER_STATE_PATH = "_bbuser"

  const authenticate = api => async ({ username, password }) => {
    if (!username) {
      api.error("Authenticate: username not set")
      return
    }

    if (!password) {
      api.error("Authenticate: password not set")
      return
    }

    const user = await api.post({
      url: "/api/authenticate",
      body: { username, password },
    })

    // set user even if error - so it is defined at least
    api.setState(USER_STATE_PATH, user)
    localStorage.setItem("budibase:user", JSON.stringify(user))
  }

  const saveRecord = api => async ({ statePath }) => {
    if (!statePath) {
      api.error("Load Record: state path not set")
      return
    }

    const recordtoSave = api.getState(statePath)

    if (!recordtoSave) {
      api.error(`there is no record in state: ${statePath}`)
      return
    }

    if (!recordtoSave.key) {
      api.error(
        `item in state does not appear to be a record - it has no key (${statePath})`
      )
      return
    }

    const savedRecord = await api.post({
      url: `/api/record/${trimSlash(recordtoSave.key)}`,
      body: recordtoSave,
    })

    if (api.isSuccess(savedRecord)) api.setState(statePath, savedRecord)
  }

  const createApi = ({ rootPath, setState, getState }) => {
    const apiCall = method => ({
      url,
      body,
      notFound,
      badRequest,
      forbidden,
    }) => {
      return fetch(`${rootPath}${url}`, {
        method: method,
        headers: {
          "Content-Type": "application/json",
        },
        body: body && JSON.stringify(body),
        credentials: "same-origin",
      }).then(r => {
        switch (r.status) {
          case 200:
            return r.json()
          case 404:
            return error(notFound || `${url} Not found`)
          case 400:
            return error(badRequest || `${url} Bad Request`)
          case 403:
            return error(forbidden || `${url} Forbidden`)
          default:
            if (
              r.status.toString().startsWith("2") ||
              r.status.toString().startsWith("3")
            )
              return r.json()
            else return error(`${url} - ${r.statusText}`)
        }
      })
    }

    const post = apiCall("POST")
    const get = apiCall("GET")
    const patch = apiCall("PATCH")
    const del = apiCall("DELETE")

    const ERROR_MEMBER = "##error"
    const error = message => {
      const e = {}
      e[ERROR_MEMBER] = message
      setState(ERROR, message)
      return e
    }

    const isSuccess = obj => !obj || !obj[ERROR_MEMBER]

    const apiOpts = {
      rootPath,
      setState,
      getState,
      isSuccess,
      error,
      post,
      get,
      patch,
      delete: del,
    }

    return {
      loadRecord: loadRecord(apiOpts),
      listRecords: listRecords(apiOpts),
      authenticate: authenticate(apiOpts),
      saveRecord: saveRecord(apiOpts),
    }
  }

  const getNewChildRecordToState = (coreApi, setState) => ({
    recordKey,
    collectionName,
    childRecordType,
    statePath,
  }) => {
    const error = errorHandler(setState)
    try {
      if (!recordKey) {
        error("getNewChild > recordKey not set")
        return
      }

      if (!collectionName) {
        error("getNewChild > collectionName not set")
        return
      }

      if (!childRecordType) {
        error("getNewChild > childRecordType not set")
        return
      }

      if (!statePath) {
        error("getNewChild > statePath not set")
        return
      }

      const rec = coreApi.recordApi.getNewChild(
        recordKey,
        collectionName,
        childRecordType
      )
      setState(statePath, rec)
    } catch (e) {
      error(e.message)
    }
  }

  const getNewRecordToState = (coreApi, setState) => ({
    collectionKey,
    childRecordType,
    statePath,
  }) => {
    const error = errorHandler(setState)
    try {
      if (!collectionKey) {
        error("getNewChild > collectionKey not set")
        return
      }

      if (!childRecordType) {
        error("getNewChild > childRecordType not set")
        return
      }

      if (!statePath) {
        error("getNewChild > statePath not set")
        return
      }

      const rec = coreApi.recordApi.getNew(collectionKey, childRecordType)
      setState(statePath, rec)
    } catch (e) {
      error(e.message)
    }
  }

  const errorHandler = setState => message => setState(ERROR, message)

  const EVENT_TYPE_MEMBER_NAME = "##eventHandlerType"

  const eventHandlers = (store, coreApi, rootPath) => {
    const handler = (parameters, execute) => ({
      execute,
      parameters,
    })

    const setStateWithStore = (path, value) => setState(store, path, value)

    let currentState
    store.subscribe(s => {
      currentState = s
    })

    const api = createApi({
      rootPath: rootPath,
      setState: setStateWithStore,
      getState: (path, fallback) => getState(currentState, path, fallback),
    })

    const setStateHandler = ({ path, value }) => setState(store, path, value)

    return {
      "Set State": handler(["path", "value"], setStateHandler),
      "Load Record": handler(["recordKey", "statePath"], api.loadRecord),
      "List Records": handler(["indexKey", "statePath"], api.listRecords),
      "Save Record": handler(["statePath"], api.saveRecord),

      "Get New Child Record": handler(
        ["recordKey", "collectionName", "childRecordType", "statePath"],
        getNewChildRecordToState(coreApi, setStateWithStore)
      ),

      "Get New Record": handler(
        ["collectionKey", "childRecordType", "statePath"],
        getNewRecordToState(coreApi, setStateWithStore)
      ),

      Authenticate: handler(["username", "password"], api.authenticate),
    }
  }

  const isEventType = prop =>
    fp_11(prop) && prop.length > 0 && !fp_2(prop[0][EVENT_TYPE_MEMBER_NAME])

  const doNothing = () => {}
  doNothing.isPlaceholder = true

  const isMetaProp = propName =>
    propName === "_component" ||
    propName === "_children" ||
    propName === "_id" ||
    propName === "_style"

  const setupBinding = (store, rootProps, coreApi, context, rootPath) => {
    const rootInitialProps = { ...rootProps }

    const getBindings = (props, initialProps) => {
      const boundProps = []
      const contextBoundProps = []
      const componentEventHandlers = []

      for (let propName in props) {
        if (isMetaProp(propName)) continue

        const val = props[propName]

        if (isBound(val) && takeStateFromStore(val)) {
          const binding = BindingPath(val)
          const source = BindingSource(val)
          const fallback = BindingFallback(val)

          boundProps.push({
            path: binding,
            fallback,
            propName,
            source,
          })

          initialProps[propName] = fallback
        } else if (isBound(val) && takeStateFromContext(val)) {
          const binding = BindingPath(val)
          const fallback = BindingFallback(val)
          const source = BindingSource(val)

          contextBoundProps.push({
            path: binding,
            fallback,
            propName,
            source,
          })

          initialProps[propName] = !context
            ? val
            : getState(context, binding, fallback)
        } else if (isEventType(val)) {
          const handlers = { propName, handlers: [] }
          componentEventHandlers.push(handlers)

          for (let e of val) {
            handlers.handlers.push({
              handlerType: e[EVENT_TYPE_MEMBER_NAME],
              parameters: e.parameters,
            })
          }

          initialProps[propName] = doNothing
        }
      }

      return {
        contextBoundProps,
        boundProps,
        componentEventHandlers,
        initialProps,
      }
    }

    const bind = rootBindings => component => {
      if (
        rootBindings.boundProps.length === 0 &&
        rootBindings.componentEventHandlers.length === 0
      )
        return

      const handlerTypes = eventHandlers(store, coreApi, rootPath)

      const unsubscribe = store.subscribe(rootState => {
        const getPropsFromBindings = (s, bindings) => {
          const { boundProps, componentEventHandlers } = bindings
          const newProps = { ...bindings.initialProps }

          for (let boundProp of boundProps) {
            const val = getState(s, boundProp.path, boundProp.fallback)

            if (
              val === undefined &&
              newProps[boundProp.propName] !== undefined
            ) {
              delete newProps[boundProp.propName]
            }

            if (val !== undefined) {
              newProps[boundProp.propName] = val
            }
          }

          for (let boundHandler of componentEventHandlers) {
            const closuredHandlers = []
            for (let h of boundHandler.handlers) {
              const handlerType = handlerTypes[h.handlerType]
              closuredHandlers.push(eventContext => {
                const parameters = {}
                for (let pname in h.parameters) {
                  const p = h.parameters[pname]
                  parameters[pname] = !isBound(p)
                    ? p
                    : takeStateFromStore(p)
                    ? getState(s, p[BB_STATE_BINDINGPATH], p[BB_STATE_FALLBACK])
                    : takeStateFromEventParameters(p)
                    ? getState(
                        eventContext,
                        p[BB_STATE_BINDINGPATH],
                        p[BB_STATE_FALLBACK]
                      )
                    : takeStateFromContext(p)
                    ? getState(
                        context,
                        p[BB_STATE_BINDINGPATH],
                        p[BB_STATE_FALLBACK]
                      )
                    : p[BB_STATE_FALLBACK]
                }
                handlerType.execute(parameters)
              })
            }

            newProps[boundHandler.propName] = async context => {
              for (let runHandler of closuredHandlers) {
                await runHandler(context)
              }
            }
          }

          return newProps
        }

        const rootNewProps = getPropsFromBindings(rootState, rootBindings)

        component.$set(rootNewProps)
      })

      return unsubscribe
    }

    const bindings = getBindings(rootProps, rootInitialProps)

    return {
      initialProps: rootInitialProps,
      bind: bind(bindings),
      boundProps: bindings.boundProps,
      contextBoundProps: bindings.contextBoundProps,
    }
  }

  const BindingPath = prop => prop[BB_STATE_BINDINGPATH]
  const BindingFallback = prop => prop[BB_STATE_FALLBACK]
  const BindingSource = prop => prop[BB_STATE_BINDINGSOURCE]

  const renderComponent = ({
    componentConstructor,
    uiFunctions,
    htmlElement,
    anchor,
    props,
    initialProps,
    bb,
    document,
    parentNode,
  }) => {
    const func = initialProps._id ? uiFunctions[initialProps._id] : undefined

    const parentContext = (parentNode && parentNode.context) || {}

    let renderedNodes = []
    const render = context => {
      let componentContext = parentContext
      if (context) {
        componentContext = { ...componentContext }
        componentContext.$parent = parentContext
      }

      const thisNode = createTreeNode()
      thisNode.context = componentContext
      thisNode.parentNode = parentNode
      thisNode.props = props

      parentNode.children.push(thisNode)
      renderedNodes.push(thisNode)

      initialProps._bb = bb(thisNode, props)

      thisNode.component = new componentConstructor({
        target: htmlElement,
        props: initialProps,
        hydrate: false,
        anchor,
      })

      thisNode.rootElement =
        htmlElement.children[htmlElement.children.length - 1]

      if (initialProps._id) {
        thisNode.rootElement.classList.add(`pos-${initialProps._id}`)
      }
    }

    if (func) {
      func(render, parentContext)
    } else {
      render()
    }

    return renderedNodes
  }

  const createTreeNode = () => ({
    context: {},
    props: {},
    rootElement: null,
    parentNode: null,
    children: [],
    component: null,
    unsubscribe: () => {},
  })

  const _initialiseChildren = initialiseOpts => (
    childrenProps,
    htmlElement,
    anchor = null
  ) => {
    const {
      uiFunctions,
      bb,
      coreApi,
      store,
      componentLibraries,
      treeNode,
      appDefinition,
      document,
      hydrate,
    } = initialiseOpts

    for (let childNode of treeNode.children) {
      if (childNode.unsubscribe) childNode.unsubscribe()
      if (childNode.component) childNode.component.$destroy()
    }

    if (hydrate) {
      while (htmlElement.firstChild) {
        htmlElement.removeChild(htmlElement.firstChild)
      }
    }

    htmlElement.classList.add(`lay-${treeNode.props._id}`)

    const renderedComponents = []
    for (let childProps of childrenProps) {
      const { componentName, libName } = splitName(childProps._component)

      if (!componentName || !libName) return

      const { initialProps, bind } = setupBinding(
        store,
        childProps,
        coreApi,
        appDefinition.appRootPath
      )

      const componentConstructor = componentLibraries[libName][componentName]

      const renderedComponentsThisIteration = renderComponent({
        props: childProps,
        parentNode: treeNode,
        componentConstructor,
        uiFunctions,
        htmlElement,
        anchor,
        initialProps,
        bb,
        document,
      })

      for (let comp of renderedComponentsThisIteration) {
        comp.unsubscribe = bind(comp.component)
        renderedComponents.push(comp)
      }
    }

    return renderedComponents
  }

  const splitName = fullname => {
    const componentName = $(fullname, [fp_3("/"), fp_5])

    const libName = fullname.substring(
      0,
      fullname.length - componentName.length - 1
    )

    return { libName, componentName }
  }

  const createApp = (
    document,
    componentLibraries,
    appDefinition,
    user,
    uiFunctions
  ) => {
    const coreApi = createCoreApi(appDefinition, user)
    appDefinition.hierarchy = coreApi.templateApi.constructHierarchy(
      appDefinition.hierarchy
    )
    const store = writable({
      _bbuser: user,
    })

    let globalState = null
    store.subscribe(s => {
      globalState = s
    })

    const relativeUrl = url =>
      appDefinition.appRootPath
        ? appDefinition.appRootPath + "/" + trimSlash(url)
        : url

    const apiCall = method => (url, body) =>
      fetch(relativeUrl(url), {
        method: method,
        headers: {
          "Content-Type": "application/json",
        },
        body: body && JSON.stringify(body),
      })

    const api = {
      post: apiCall("POST"),
      get: apiCall("GET"),
      patch: apiCall("PATCH"),
      delete: apiCall("DELETE"),
    }

    const safeCallEvent = (event, context) => {
      const isFunction = obj =>
        !!(obj && obj.constructor && obj.call && obj.apply)

      if (isFunction(event)) event(context)
    }

    const initialiseChildrenParams = (hydrate, treeNode) => ({
      bb,
      coreApi,
      store,
      document,
      componentLibraries,
      appDefinition,
      hydrate,
      uiFunctions,
      treeNode,
    })

    const bb = (treeNode, componentProps) => ({
      hydrateChildren: _initialiseChildren(
        initialiseChildrenParams(true, treeNode)
      ),
      appendChildren: _initialiseChildren(
        initialiseChildrenParams(false, treeNode)
      ),
      insertChildren: (props, htmlElement, anchor) =>
        _initialiseChildren(initialiseChildrenParams(false, treeNode))(
          props,
          htmlElement,
          anchor
        ),
      context: treeNode.context,
      props: componentProps,
      call: safeCallEvent,
      setStateFromBinding: (binding, value) =>
        setStateFromBinding(store, binding, value),
      setState: (path, value) => setState(store, path, value),
      getStateOrValue: (prop, currentContext) =>
        getStateOrValue(globalState, prop, currentContext),
      store,
      relativeUrl,
      api,
      isBound,
      parent,
    })

    return bb(createTreeNode())
  }

  const loadBudibase = async ({
    componentLibraries,
    props,
    window,
    localStorage,
    uiFunctions,
  }) => {
    const appDefinition = window["##BUDIBASE_APPDEFINITION##"]

    const userFromStorage = localStorage.getItem("budibase:user")

    const user = userFromStorage
      ? JSON.parse(userFromStorage)
      : {
          name: "annonymous",
          permissions: [],
          isUser: false,
          temp: false,
        }

    if (!componentLibraries) {
      const rootPath =
        appDefinition.appRootPath === ""
          ? ""
          : "/" + trimSlash(appDefinition.appRootPath)
      const componentLibraryUrl = lib => rootPath + "/" + trimSlash(lib)
      componentLibraries = {}

      for (let lib of appDefinition.componentLibraries) {
        componentLibraries[lib.libName] = await import(
          componentLibraryUrl(lib.importPath)
        )
      }
    }

    if (!props) {
      props = appDefinition.props
    }

    const app = createApp(
      window.document,
      componentLibraries,
      appDefinition,
      user,
      uiFunctions || {}
    )
    app.hydrateChildren([props], window.document.body)

    return app
  }

  if (window) {
    window.loadBudibase = loadBudibase
  }

  exports.loadBudibase = loadBudibase

  return exports
})({})
//# sourceMappingURL=budibase-client.js.map