biofriction-wp-theme/node_modules/browser-sync/dist/lodash.custom.js

/**
 * @license
 * Lodash (Custom Build) <https://lodash.com/>
 * Build: `lodash include="isUndefined,isFunction,toArray,includes,union,each,isString,merge,isObject,set" exports="node"`
 * Copyright JS Foundation and other contributors <https://js.foundation/>
 * Released under MIT license <https://lodash.com/license>
 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
 * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 */
(function () {
    /** Used as a safe reference for `undefined` in pre-ES5 environments. */
    var undefined;
    /** Used as the semantic version number. */
    var VERSION = "4.17.4";
    /** Used as the size to enable large array optimizations. */
    var LARGE_ARRAY_SIZE = 200;
    /** Error message constants. */
    var 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 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 detect hot functions by number of calls within a span of milliseconds. */
    var HOT_COUNT = 800, HOT_SPAN = 16;
    /** Used as references for various `Number` constants. */
    var INFINITY = 1 / 0, MAX_SAFE_INTEGER = 9007199254740991, MAX_INTEGER = 1.7976931348623157e308, NAN = 0 / 0;
    /** `Object#toString` result references. */
    var argsTag = "[object Arguments]", arrayTag = "[object Array]", asyncTag = "[object AsyncFunction]", boolTag = "[object Boolean]", dateTag = "[object Date]", 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]";
    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 property names within property paths. */
    var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/, reIsPlainProp = /^\w*$/, reLeadingDot = /^\./, 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;
    /** Used to match leading and trailing whitespace. */
    var reTrim = /^\s+|\s+$/g;
    /** Used to match backslashes in property paths. */
    var reEscapeChar = /\\(\\)?/g;
    /** Used to match `RegExp` flags from their coerced string values. */
    var reFlags = /\w*$/;
    /** 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 compose unicode character classes. */
    var rsAstralRange = "\\ud800-\\udfff", rsComboMarksRange = "\\u0300-\\u036f", reComboHalfMarksRange = "\\ufe20-\\ufe2f", rsComboSymbolsRange = "\\u20d0-\\u20ff", rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange, rsVarRange = "\\ufe0e\\ufe0f";
    /** Used to compose unicode capture groups. */
    var rsAstral = "[" + rsAstralRange + "]", rsCombo = "[" + rsComboRange + "]", rsFitz = "\\ud83c[\\udffb-\\udfff]", rsModifier = "(?:" + rsCombo + "|" + rsFitz + ")", rsNonAstral = "[^" + rsAstralRange + "]", rsRegional = "(?:\\ud83c[\\udde6-\\uddff]){2}", rsSurrPair = "[\\ud800-\\udbff][\\udc00-\\udfff]", rsZWJ = "\\u200d";
    /** Used to compose unicode regexes. */
    var reOptMod = rsModifier + "?", rsOptVar = "[" + rsVarRange + "]?", rsOptJoin = "(?:" +
        rsZWJ +
        "(?:" +
        [rsNonAstral, rsRegional, rsSurrPair].join("|") +
        ")" +
        rsOptVar +
        reOptMod +
        ")*", rsSeq = rsOptVar + reOptMod + rsOptJoin, rsSymbol = "(?:" +
        [
            rsNonAstral + rsCombo + "?",
            rsCombo,
            rsRegional,
            rsSurrPair,
            rsAstral
        ].join("|") +
        ")";
    /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */
    var reUnicode = RegExp(rsFitz + "(?=" + rsFitz + ")|" + rsSymbol + rsSeq, "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 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;
    /** Built-in method references without a dependency on `root`. */
    var freeParseInt = parseInt;
    /** Detect free variable `global` from Node.js. */
    var freeGlobal = typeof global == "object" &&
        global &&
        global.Object === Object &&
        global;
    /** 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 = typeof exports == "object" && exports && !exports.nodeType && exports;
    /** Detect free variable `module`. */
    var freeModule = freeExports &&
        typeof module == "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 {
            return (freeProcess &&
                freeProcess.binding &&
                freeProcess.binding("util"));
        }
        catch (e) { }
    })();
    /* Node.js helper references. */
    var nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;
    /*--------------------------------------------------------------------------*/
    /**
     * Adds the key-value `pair` to `map`.
     *
     * @private
     * @param {Object} map The map to modify.
     * @param {Array} pair The key-value pair to add.
     * @returns {Object} Returns `map`.
     */
    function addMapEntry(map, pair) {
        // Don't return `map.set` because it's not chainable in IE 11.
        map.set(pair[0], pair[1]);
        return map;
    }
    /**
     * Adds `value` to `set`.
     *
     * @private
     * @param {Object} set The set to modify.
     * @param {*} value The value to add.
     * @returns {Object} Returns `set`.
     */
    function addSetEntry(set, value) {
        // Don't return `set.add` because it's not chainable in IE 11.
        set.add(value);
        return set;
    }
    /**
     * 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 `_.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 `_.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 `_.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;
    }
    /**
     * 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("");
    }
    /**
     * 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);
    }
    /**
     * 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 `_.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 : object[key];
        };
    }
    /**
     * 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 `_.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);
    }
    /**
     * 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 : 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);
    }
    /**
     * 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));
        };
    }
    /**
     * 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;
    }
    /**
     * 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;
    }
    /**
     * 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);
    }
    /**
     * 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) || [];
    }
    /*--------------------------------------------------------------------------*/
    /** 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 = root["__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 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 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 ? root.Buffer : undefined, Symbol = root.Symbol, Uint8Array = root.Uint8Array, allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined, getPrototype = overArg(Object.getPrototypeOf, Object), objectCreate = Object.create, propertyIsEnumerable = objectProto.propertyIsEnumerable, splice = arrayProto.splice, spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined, symIterator = Symbol ? Symbol.iterator : undefined, symToStringTag = Symbol ? Symbol.toStringTag : undefined;
    var defineProperty = (function () {
        try {
            var func = getNative(Object, "defineProperty");
            func({}, "", {});
            return func;
        }
        catch (e) { }
    })();
    /* Built-in method references for those with the same name as other `lodash` methods. */
    var nativeGetSymbols = Object.getOwnPropertySymbols, nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined, nativeKeys = overArg(Object.keys, Object), nativeMax = Math.max, nativeNow = Date.now;
    /* Built-in method references that are verified to be native. */
    var DataView = getNative(root, "DataView"), Map = getNative(root, "Map"), Promise = getNative(root, "Promise"), Set = getNative(root, "Set"), WeakMap = getNative(root, "WeakMap"), nativeCreate = getNative(Object, "create");
    /** 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, symbolValueOf = symbolProto ? symbolProto.valueOf : undefined, symbolToString = symbolProto ? symbolProto.toString : undefined;
    /*------------------------------------------------------------------------*/
    /**
     * 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() {
        // No operation performed.
    }
    /**
     * 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;
            return result;
        };
    })();
    /*------------------------------------------------------------------------*/
    /**
     * 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 : result;
        }
        return hasOwnProperty.call(data, key) ? data[key] : undefined;
    }
    /**
     * 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
            : 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 ? 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 : 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;
    }
    /**
     * 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 && !eq(object[key], value)) ||
            (value === undefined && !(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 && !(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;
    }
    /**
     * 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 `_.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) {
            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, baseClone, 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);
        var keysFunc = isFull
            ? isFlat
                ? getAllKeysIn
                : getAllKeys
            : isFlat
                ? keysIn
                : keys;
        var props = isArr ? undefined : 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 `_.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 `_.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();
    /**
     * 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 `_.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;
    }
    /**
     * 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 ? undefinedTag : nullTag;
        }
        return symToStringTag && symToStringTag in Object(value)
            ? getRawTag(value)
            : objectToString(value);
    }
    /**
     * 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 `_.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 `_.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 `_.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 && !(key in object)) {
                    return false;
                }
            }
            else {
                var stack = new Stack();
                if (customizer) {
                    var result = customizer(objValue, srcValue, key, object, source, stack);
                }
                if (!(result === undefined
                    ? 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 `_.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 `_.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 && 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) {
            if (isObject(srcValue)) {
                stack || (stack = new Stack());
                baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack);
            }
            else {
                var newValue = customizer
                    ? customizer(object[key], srcValue, key + "", object, source, stack)
                    : undefined;
                if (newValue === undefined) {
                    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 = object[key], srcValue = source[key], stacked = stack.get(srcValue);
        if (stacked) {
            assignMergeValue(object, key, stacked);
            return;
        }
        var newValue = customizer
            ? customizer(objValue, srcValue, key + "", object, source, stack)
            : undefined;
        var isCommon = newValue === undefined;
        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) ||
                    (srcIndex && 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);
    }
    /**
     * 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 `_.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 `_.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;
                if (newValue === undefined) {
                    newValue = isObject(objValue)
                        ? objValue
                        : isIndex(path[index + 1])
                            ? []
                            : {};
                }
            }
            assignValue(nested, key, newValue);
            nested = nested[key];
        }
        return object;
    }
    /**
     * 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 `_.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;
    }
    /**
     * 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));
    }
    /**
     * 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 `map`.
     *
     * @private
     * @param {Object} map The map to clone.
     * @param {Function} cloneFunc The function to clone values.
     * @param {boolean} [isDeep] Specify a deep clone.
     * @returns {Object} Returns the cloned map.
     */
    function cloneMap(map, isDeep, cloneFunc) {
        var array = isDeep
            ? cloneFunc(mapToArray(map), CLONE_DEEP_FLAG)
            : mapToArray(map);
        return arrayReduce(array, addMapEntry, new map.constructor());
    }
    /**
     * 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 `set`.
     *
     * @private
     * @param {Object} set The set to clone.
     * @param {Function} cloneFunc The function to clone values.
     * @param {boolean} [isDeep] Specify a deep clone.
     * @returns {Object} Returns the cloned set.
     */
    function cloneSet(set, isDeep, cloneFunc) {
        var array = isDeep
            ? cloneFunc(setToArray(set), CLONE_DEEP_FLAG)
            : setToArray(set);
        return arrayReduce(array, addSetEntry, new set.constructor());
    }
    /**
     * 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);
    }
    /**
     * 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;
            if (newValue === undefined) {
                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 `_.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, guard = length > 2 ? sources[2] : undefined;
            customizer =
                assigner.length > 3 && typeof customizer == "function"
                    ? (length--, customizer)
                    : undefined;
            if (guard && isIterateeCall(sources[0], sources[1], guard)) {
                customizer = length < 3 ? undefined : 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 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);
        };
    /**
     * 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;
        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) {
                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
                ? 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;
    }
    /**
     * 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 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;
    }
    /**
     * 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;
            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, 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;
        };
    }
    /**
     * 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 = 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`, `Number`, `RegExp`, or `String`.
     *
     * @private
     * @param {Object} object The object to clone.
     * @param {string} tag The `toStringTag` of the object to clone.
     * @param {Function} cloneFunc The function to clone values.
     * @param {boolean} [isDeep] Specify a deep clone.
     * @returns {Object} Returns the initialized clone.
     */
    function initCloneByTag(object, tag, cloneFunc, 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 cloneMap(object, isDeep, cloneFunc);
            case numberTag:
            case stringTag:
                return new Ctor(object);
            case regexpTag:
                return cloneRegExp(object);
            case setTag:
                return cloneSet(object, isDeep, cloneFunc);
            case symbolTag:
                return cloneSymbol(object);
        }
    }
    /**
     * 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) {
        length = length == null ? MAX_SAFE_INTEGER : length;
        return (!!length &&
            (typeof value == "number" || 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 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 `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 || 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;
    }
    /**
     * 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 ? 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);
        };
    }
    /**
     * 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);
    /**
     * 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, arguments);
        };
    }
    /**
     * 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 (reLeadingDot.test(string)) {
            result.push("");
        }
        string.replace(rePropName, function (match, number, quote, string) {
            result.push(quote ? string.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 "";
    }
    /*------------------------------------------------------------------------*/
    /**
     * 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));
    });
    /*------------------------------------------------------------------------*/
    /**
     * 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));
    }
    /**
     * 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;
    }
    /*------------------------------------------------------------------------*/
    /**
     * 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;
    /*------------------------------------------------------------------------*/
    /**
     * 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 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 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 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 `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 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 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 `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;
    }
    /**
     * 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 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 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);
    }
    /*------------------------------------------------------------------------*/
    /**
     * 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 : baseGet(object, path);
        return result === undefined ? defaultValue : result;
    }
    /**
     * 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 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);
    }
    /**
     * 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);
    });
    /**
     * 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);
    }
    /**
     * 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 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;
        };
    }
    /**
     * 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));
    }
    /**
     * 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 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);
    }
    /**
     * 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;
    }
    /*------------------------------------------------------------------------*/
    // Add methods that return wrapped values in chain sequences.
    lodash.constant = constant;
    lodash.iteratee = iteratee;
    lodash.keys = keys;
    lodash.keysIn = keysIn;
    lodash.memoize = memoize;
    lodash.merge = merge;
    lodash.property = property;
    lodash.set = set;
    lodash.toArray = toArray;
    lodash.toPlainObject = toPlainObject;
    lodash.union = union;
    lodash.values = values;
    /*------------------------------------------------------------------------*/
    // Add methods that return unwrapped values in chain sequences.
    lodash.eq = eq;
    lodash.forEach = forEach;
    lodash.get = get;
    lodash.hasIn = hasIn;
    lodash.identity = identity;
    lodash.includes = includes;
    lodash.isArguments = isArguments;
    lodash.isArray = isArray;
    lodash.isArrayLike = isArrayLike;
    lodash.isArrayLikeObject = isArrayLikeObject;
    lodash.isBuffer = isBuffer;
    lodash.isFunction = isFunction;
    lodash.isLength = isLength;
    lodash.isObject = isObject;
    lodash.isObjectLike = isObjectLike;
    lodash.isPlainObject = isPlainObject;
    lodash.isString = isString;
    lodash.isSymbol = isSymbol;
    lodash.isTypedArray = isTypedArray;
    lodash.isUndefined = isUndefined;
    lodash.stubArray = stubArray;
    lodash.stubFalse = stubFalse;
    lodash.noop = noop;
    lodash.toFinite = toFinite;
    lodash.toInteger = toInteger;
    lodash.toNumber = toNumber;
    lodash.toString = toString;
    // Add aliases.
    lodash.each = forEach;
    /*------------------------------------------------------------------------*/
    /**
     * The semantic version number.
     *
     * @static
     * @memberOf _
     * @type {string}
     */
    lodash.VERSION = VERSION;
    /*--------------------------------------------------------------------------*/
    if (freeModule) {
        // Export for Node.js.
        (freeModule.exports = lodash)._ = lodash;
        // Export for CommonJS support.
        freeExports._ = lodash;
    }
}.call(this));
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