Update - This is an automated commit

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diff --git a/alarm/node_modules/lodash/core.js b/alarm/node_modules/lodash/core.js
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@@ -1,3877 +0,0 @@
-/**
- * @license
- * Lodash (Custom Build) <https://lodash.com/>
- * Build: `lodash core -o ./dist/lodash.core.js`
- * Copyright OpenJS Foundation and other contributors <https://openjsf.org/>
- * 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 = '4.17.21';
-
-  /** Error message constants. */
-  var FUNC_ERROR_TEXT = 'Expected a function';
-
-  /** Used to compose bitmasks for value comparisons. */
-  var COMPARE_PARTIAL_FLAG = 1,
-      COMPARE_UNORDERED_FLAG = 2;
-
-  /** Used to compose bitmasks for function metadata. */
-  var WRAP_BIND_FLAG = 1,
-      WRAP_PARTIAL_FLAG = 32;
-
-  /** Used as references for various `Number` constants. */
-  var INFINITY = 1 / 0,
-      MAX_SAFE_INTEGER = 9007199254740991;
-
-  /** `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]',
-      numberTag = '[object Number]',
-      objectTag = '[object Object]',
-      proxyTag = '[object Proxy]',
-      regexpTag = '[object RegExp]',
-      stringTag = '[object String]';
-
-  /** Used to match HTML entities and HTML characters. */
-  var reUnescapedHtml = /[&<>"']/g,
-      reHasUnescapedHtml = RegExp(reUnescapedHtml.source);
-
-  /** Used to detect unsigned integer values. */
-  var reIsUint = /^(?:0|[1-9]\d*)$/;
-
-  /** Used to map characters to HTML entities. */
-  var htmlEscapes = {
-    '&': '&amp;',
-    '<': '&lt;',
-    '>': '&gt;',
-    '"': '&quot;',
-    "'": '&#39;'
-  };
-
-  /** 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;
-
-  /*--------------------------------------------------------------------------*/
-
-  /**
-   * 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) {
-    array.push.apply(array, values);
-    return array;
-  }
-
-  /**
-   * 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 `_.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 `_.propertyOf` without support for deep paths.
-   *
-   * @private
-   * @param {Object} object The object to query.
-   * @returns {Function} Returns the new accessor function.
-   */
-  function basePropertyOf(object) {
-    return function(key) {
-      return object == null ? undefined : object[key];
-    };
-  }
-
-  /**
-   * The base implementation of `_.reduce` and `_.reduceRight`, without support
-   * for iteratee shorthands, which iterates over `collection` using `eachFunc`.
-   *
-   * @private
-   * @param {Array|Object} collection The collection to iterate over.
-   * @param {Function} iteratee The function invoked per iteration.
-   * @param {*} accumulator The initial value.
-   * @param {boolean} initAccum Specify using the first or last element of
-   *  `collection` as the initial value.
-   * @param {Function} eachFunc The function to iterate over `collection`.
-   * @returns {*} Returns the accumulated value.
-   */
-  function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) {
-    eachFunc(collection, function(value, index, collection) {
-      accumulator = initAccum
-        ? (initAccum = false, value)
-        : iteratee(accumulator, value, index, collection);
-    });
-    return accumulator;
-  }
-
-  /**
-   * The base implementation of `_.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 baseMap(props, function(key) {
-      return object[key];
-    });
-  }
-
-  /**
-   * Used by `_.escape` to convert characters to HTML entities.
-   *
-   * @private
-   * @param {string} chr The matched character to escape.
-   * @returns {string} Returns the escaped character.
-   */
-  var escapeHtmlChar = basePropertyOf(htmlEscapes);
-
-  /**
-   * 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));
-    };
-  }
-
-  /*--------------------------------------------------------------------------*/
-
-  /** Used for built-in method references. */
-  var arrayProto = Array.prototype,
-      objectProto = Object.prototype;
-
-  /** Used to check objects for own properties. */
-  var hasOwnProperty = objectProto.hasOwnProperty;
-
-  /** Used to generate unique IDs. */
-  var idCounter = 0;
-
-  /**
-   * 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 restore the original `_` reference in `_.noConflict`. */
-  var oldDash = root._;
-
-  /** Built-in value references. */
-  var objectCreate = Object.create,
-      propertyIsEnumerable = objectProto.propertyIsEnumerable;
-
-  /* Built-in method references for those with the same name as other `lodash` methods. */
-  var nativeIsFinite = root.isFinite,
-      nativeKeys = overArg(Object.keys, Object),
-      nativeMax = Math.max;
-
-  /*------------------------------------------------------------------------*/
-
-  /**
-   * Creates a `lodash` object which wraps `value` to enable implicit method
-   * chain sequences. Methods that operate on and return arrays, collections,
-   * and functions can be chained together. Methods that retrieve a single value
-   * or may return a primitive value will automatically end the chain sequence
-   * and return the unwrapped value. Otherwise, the value must be unwrapped
-   * with `_#value`.
-   *
-   * Explicit chain sequences, which must be unwrapped with `_#value`, may be
-   * enabled using `_.chain`.
-   *
-   * The execution of chained methods is lazy, that is, it's deferred until
-   * `_#value` is implicitly or explicitly called.
-   *
-   * Lazy evaluation allows several methods to support shortcut fusion.
-   * Shortcut fusion is an optimization to merge iteratee calls; this avoids
-   * the creation of intermediate arrays and can greatly reduce the number of
-   * iteratee executions. Sections of a chain sequence qualify for shortcut
-   * fusion if the section is applied to an array and iteratees accept only
-   * one argument. The heuristic for whether a section qualifies for shortcut
-   * fusion is subject to change.
-   *
-   * Chaining is supported in custom builds as long as the `_#value` method is
-   * directly or indirectly included in the build.
-   *
-   * In addition to lodash methods, wrappers have `Array` and `String` methods.
-   *
-   * The wrapper `Array` methods are:
-   * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift`
-   *
-   * The wrapper `String` methods are:
-   * `replace` and `split`
-   *
-   * The wrapper methods that support shortcut fusion are:
-   * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`,
-   * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`,
-   * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray`
-   *
-   * The chainable wrapper methods are:
-   * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`,
-   * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`,
-   * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`,
-   * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`,
-   * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`,
-   * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`,
-   * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`,
-   * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`,
-   * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`,
-   * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`,
-   * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`,
-   * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`,
-   * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`,
-   * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`,
-   * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`,
-   * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`,
-   * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`,
-   * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`,
-   * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`,
-   * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`,
-   * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`,
-   * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`,
-   * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`,
-   * `zipObject`, `zipObjectDeep`, and `zipWith`
-   *
-   * The wrapper methods that are **not** chainable by default are:
-   * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`,
-   * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`,
-   * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`,
-   * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`,
-   * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`,
-   * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`,
-   * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`,
-   * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`,
-   * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`,
-   * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`,
-   * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`,
-   * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`,
-   * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`,
-   * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`,
-   * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`,
-   * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`,
-   * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`,
-   * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`,
-   * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`,
-   * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`,
-   * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`,
-   * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`,
-   * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`,
-   * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`,
-   * `upperFirst`, `value`, and `words`
-   *
-   * @name _
-   * @constructor
-   * @category Seq
-   * @param {*} value The value to wrap in a `lodash` instance.
-   * @returns {Object} Returns the new `lodash` wrapper instance.
-   * @example
-   *
-   * function square(n) {
-   *   return n * n;
-   * }
-   *
-   * var wrapped = _([1, 2, 3]);
-   *
-   * // Returns an unwrapped value.
-   * wrapped.reduce(_.add);
-   * // => 6
-   *
-   * // Returns a wrapped value.
-   * var squares = wrapped.map(square);
-   *
-   * _.isArray(squares);
-   * // => false
-   *
-   * _.isArray(squares.value());
-   * // => true
-   */
-  function lodash(value) {
-    return value instanceof LodashWrapper
-      ? value
-      : new LodashWrapper(value);
-  }
-
-  /**
-   * The base implementation of `_.create` without support for assigning
-   * properties to the created object.
-   *
-   * @private
-   * @param {Object} proto The object to inherit from.
-   * @returns {Object} Returns the new object.
-   */
-  var baseCreate = (function() {
-    function object() {}
-    return function(proto) {
-      if (!isObject(proto)) {
-        return {};
-      }
-      if (objectCreate) {
-        return objectCreate(proto);
-      }
-      object.prototype = proto;
-      var result = new object;
-      object.prototype = undefined;
-      return result;
-    };
-  }());
-
-  /**
-   * The base constructor for creating `lodash` wrapper objects.
-   *
-   * @private
-   * @param {*} value The value to wrap.
-   * @param {boolean} [chainAll] Enable explicit method chain sequences.
-   */
-  function LodashWrapper(value, chainAll) {
-    this.__wrapped__ = value;
-    this.__actions__ = [];
-    this.__chain__ = !!chainAll;
-  }
-
-  LodashWrapper.prototype = baseCreate(lodash.prototype);
-  LodashWrapper.prototype.constructor = LodashWrapper;
-
-  /*------------------------------------------------------------------------*/
-
-  /**
-   * 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);
-    }
-  }
-
-  /**
-   * 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) {
-    object[key] = value;
-  }
-
-  /**
-   * The base implementation of `_.delay` and `_.defer` which accepts `args`
-   * to provide to `func`.
-   *
-   * @private
-   * @param {Function} func The function to delay.
-   * @param {number} wait The number of milliseconds to delay invocation.
-   * @param {Array} args The arguments to provide to `func`.
-   * @returns {number|Object} Returns the timer id or timeout object.
-   */
-  function baseDelay(func, wait, args) {
-    if (typeof func != 'function') {
-      throw new TypeError(FUNC_ERROR_TEXT);
-    }
-    return setTimeout(function() { func.apply(undefined, args); }, wait);
-  }
-
-  /**
-   * 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 `_.every` without support for iteratee shorthands.
-   *
-   * @private
-   * @param {Array|Object} collection The collection to iterate over.
-   * @param {Function} predicate The function invoked per iteration.
-   * @returns {boolean} Returns `true` if all elements pass the predicate check,
-   *  else `false`
-   */
-  function baseEvery(collection, predicate) {
-    var result = true;
-    baseEach(collection, function(value, index, collection) {
-      result = !!predicate(value, index, collection);
-      return result;
-    });
-    return result;
-  }
-
-  /**
-   * The base implementation of methods like `_.max` and `_.min` which accepts a
-   * `comparator` to determine the extremum value.
-   *
-   * @private
-   * @param {Array} array The array to iterate over.
-   * @param {Function} iteratee The iteratee invoked per iteration.
-   * @param {Function} comparator The comparator used to compare values.
-   * @returns {*} Returns the extremum value.
-   */
-  function baseExtremum(array, iteratee, comparator) {
-    var index = -1,
-        length = array.length;
-
-    while (++index < length) {
-      var value = array[index],
-          current = iteratee(value);
-
-      if (current != null && (computed === undefined
-            ? (current === current && !false)
-            : comparator(current, computed)
-          )) {
-        var computed = current,
-            result = value;
-      }
-    }
-    return result;
-  }
-
-  /**
-   * The base implementation of `_.filter` without support for iteratee shorthands.
-   *
-   * @private
-   * @param {Array|Object} collection The collection to iterate over.
-   * @param {Function} predicate The function invoked per iteration.
-   * @returns {Array} Returns the new filtered array.
-   */
-  function baseFilter(collection, predicate) {
-    var result = [];
-    baseEach(collection, function(value, index, collection) {
-      if (predicate(value, index, collection)) {
-        result.push(value);
-      }
-    });
-    return result;
-  }
-
-  /**
-   * The base implementation of `_.flatten` with support for restricting flattening.
-   *
-   * @private
-   * @param {Array} array The array to flatten.
-   * @param {number} depth The maximum recursion depth.
-   * @param {boolean} [predicate=isFlattenable] The function invoked per iteration.
-   * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks.
-   * @param {Array} [result=[]] The initial result value.
-   * @returns {Array} Returns the new flattened array.
-   */
-  function baseFlatten(array, depth, predicate, isStrict, result) {
-    var index = -1,
-        length = array.length;
-
-    predicate || (predicate = isFlattenable);
-    result || (result = []);
-
-    while (++index < length) {
-      var value = array[index];
-      if (depth > 0 && predicate(value)) {
-        if (depth > 1) {
-          // Recursively flatten arrays (susceptible to call stack limits).
-          baseFlatten(value, depth - 1, predicate, isStrict, result);
-        } else {
-          arrayPush(result, value);
-        }
-      } else if (!isStrict) {
-        result[result.length] = value;
-      }
-    }
-    return result;
-  }
-
-  /**
-   * The base implementation of `baseForOwn` which iterates over `object`
-   * properties returned by `keysFunc` and invokes `iteratee` for each property.
-   * Iteratee functions may exit iteration early by explicitly returning `false`.
-   *
-   * @private
-   * @param {Object} object The object to iterate over.
-   * @param {Function} iteratee The function invoked per iteration.
-   * @param {Function} keysFunc The function to get the keys of `object`.
-   * @returns {Object} Returns `object`.
-   */
-  var baseFor = createBaseFor();
-
-  /**
-   * 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 `_.functions` which creates an array of
-   * `object` function property names filtered from `props`.
-   *
-   * @private
-   * @param {Object} object The object to inspect.
-   * @param {Array} props The property names to filter.
-   * @returns {Array} Returns the function names.
-   */
-  function baseFunctions(object, props) {
-    return baseFilter(props, function(key) {
-      return isFunction(object[key]);
-    });
-  }
-
-  /**
-   * 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) {
-    return objectToString(value);
-  }
-
-  /**
-   * The base implementation of `_.gt` which doesn't coerce arguments.
-   *
-   * @private
-   * @param {*} value The value to compare.
-   * @param {*} other The other value to compare.
-   * @returns {boolean} Returns `true` if `value` is greater than `other`,
-   *  else `false`.
-   */
-  function baseGt(value, other) {
-    return value > other;
-  }
-
-  /**
-   * The base implementation of `_.isArguments`.
-   *
-   * @private
-   * @param {*} value The value to check.
-   * @returns {boolean} Returns `true` if `value` is an `arguments` object,
-   */
-  var baseIsArguments = noop;
-
-  /**
-   * The base implementation of `_.isDate` without Node.js optimizations.
-   *
-   * @private
-   * @param {*} value The value to check.
-   * @returns {boolean} Returns `true` if `value` is a date object, else `false`.
-   */
-  function baseIsDate(value) {
-    return isObjectLike(value) && baseGetTag(value) == dateTag;
-  }
-
-  /**
-   * The base implementation of `_.isEqual` which supports partial comparisons
-   * and tracks traversed objects.
-   *
-   * @private
-   * @param {*} value The value to compare.
-   * @param {*} other The other value to compare.
-   * @param {boolean} bitmask The bitmask flags.
-   *  1 - Unordered comparison
-   *  2 - Partial comparison
-   * @param {Function} [customizer] The function to customize comparisons.
-   * @param {Object} [stack] Tracks traversed `value` and `other` objects.
-   * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
-   */
-  function baseIsEqual(value, other, bitmask, customizer, stack) {
-    if (value === other) {
-      return true;
-    }
-    if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) {
-      return value !== value && other !== other;
-    }
-    return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack);
-  }
-
-  /**
-   * A specialized version of `baseIsEqual` for arrays and objects which performs
-   * deep comparisons and tracks traversed objects enabling objects with circular
-   * references to be compared.
-   *
-   * @private
-   * @param {Object} object The object to compare.
-   * @param {Object} other The other object to compare.
-   * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
-   * @param {Function} customizer The function to customize comparisons.
-   * @param {Function} equalFunc The function to determine equivalents of values.
-   * @param {Object} [stack] Tracks traversed `object` and `other` objects.
-   * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
-   */
-  function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) {
-    var objIsArr = isArray(object),
-        othIsArr = isArray(other),
-        objTag = objIsArr ? arrayTag : baseGetTag(object),
-        othTag = othIsArr ? arrayTag : baseGetTag(other);
-
-    objTag = objTag == argsTag ? objectTag : objTag;
-    othTag = othTag == argsTag ? objectTag : othTag;
-
-    var objIsObj = objTag == objectTag,
-        othIsObj = othTag == objectTag,
-        isSameTag = objTag == othTag;
-
-    stack || (stack = []);
-    var objStack = find(stack, function(entry) {
-      return entry[0] == object;
-    });
-    var othStack = find(stack, function(entry) {
-      return entry[0] == other;
-    });
-    if (objStack && othStack) {
-      return objStack[1] == other;
-    }
-    stack.push([object, other]);
-    stack.push([other, object]);
-    if (isSameTag && !objIsObj) {
-      var result = (objIsArr)
-        ? equalArrays(object, other, bitmask, customizer, equalFunc, stack)
-        : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack);
-      stack.pop();
-      return result;
-    }
-    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;
-
-        var result = equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack);
-        stack.pop();
-        return result;
-      }
-    }
-    if (!isSameTag) {
-      return false;
-    }
-    var result = equalObjects(object, other, bitmask, customizer, equalFunc, stack);
-    stack.pop();
-    return result;
-  }
-
-  /**
-   * The base implementation of `_.isRegExp` without Node.js optimizations.
-   *
-   * @private
-   * @param {*} value The value to check.
-   * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.
-   */
-  function baseIsRegExp(value) {
-    return isObjectLike(value) && baseGetTag(value) == regexpTag;
-  }
-
-  /**
-   * The base implementation of `_.iteratee`.
-   *
-   * @private
-   * @param {*} [value=_.identity] The value to convert to an iteratee.
-   * @returns {Function} Returns the iteratee.
-   */
-  function baseIteratee(func) {
-    if (typeof func == 'function') {
-      return func;
-    }
-    if (func == null) {
-      return identity;
-    }
-    return (typeof func == 'object' ? baseMatches : baseProperty)(func);
-  }
-
-  /**
-   * The base implementation of `_.lt` which doesn't coerce arguments.
-   *
-   * @private
-   * @param {*} value The value to compare.
-   * @param {*} other The other value to compare.
-   * @returns {boolean} Returns `true` if `value` is less than `other`,
-   *  else `false`.
-   */
-  function baseLt(value, other) {
-    return value < other;
-  }
-
-  /**
-   * The base implementation of `_.map` without support for iteratee shorthands.
-   *
-   * @private
-   * @param {Array|Object} collection The collection to iterate over.
-   * @param {Function} iteratee The function invoked per iteration.
-   * @returns {Array} Returns the new mapped array.
-   */
-  function baseMap(collection, iteratee) {
-    var index = -1,
-        result = isArrayLike(collection) ? Array(collection.length) : [];
-
-    baseEach(collection, function(value, key, collection) {
-      result[++index] = iteratee(value, key, collection);
-    });
-    return result;
-  }
-
-  /**
-   * The base implementation of `_.matches` which doesn't clone `source`.
-   *
-   * @private
-   * @param {Object} source The object of property values to match.
-   * @returns {Function} Returns the new spec function.
-   */
-  function baseMatches(source) {
-    var props = nativeKeys(source);
-    return function(object) {
-      var length = props.length;
-      if (object == null) {
-        return !length;
-      }
-      object = Object(object);
-      while (length--) {
-        var key = props[length];
-        if (!(key in object &&
-              baseIsEqual(source[key], object[key], COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG)
-            )) {
-          return false;
-        }
-      }
-      return true;
-    };
-  }
-
-  /**
-   * The base implementation of `_.pick` without support for individual
-   * property identifiers.
-   *
-   * @private
-   * @param {Object} object The source object.
-   * @param {string[]} paths The property paths to pick.
-   * @returns {Object} Returns the new object.
-   */
-  function basePick(object, props) {
-    object = Object(object);
-    return reduce(props, function(result, key) {
-      if (key in object) {
-        result[key] = object[key];
-      }
-      return result;
-    }, {});
-  }
-
-  /**
-   * The base implementation of `_.rest` which doesn't validate or coerce arguments.
-   *
-   * @private
-   * @param {Function} func The function to apply a rest parameter to.
-   * @param {number} [start=func.length-1] The start position of the rest parameter.
-   * @returns {Function} Returns the new function.
-   */
-  function baseRest(func, start) {
-    return setToString(overRest(func, start, identity), func + '');
-  }
-
-  /**
-   * The base implementation of `_.slice` without an iteratee call guard.
-   *
-   * @private
-   * @param {Array} array The array to slice.
-   * @param {number} [start=0] The start position.
-   * @param {number} [end=array.length] The end position.
-   * @returns {Array} Returns the slice of `array`.
-   */
-  function baseSlice(array, start, end) {
-    var index = -1,
-        length = array.length;
-
-    if (start < 0) {
-      start = -start > length ? 0 : (length + start);
-    }
-    end = end > length ? length : end;
-    if (end < 0) {
-      end += length;
-    }
-    length = start > end ? 0 : ((end - start) >>> 0);
-    start >>>= 0;
-
-    var result = Array(length);
-    while (++index < length) {
-      result[index] = array[index + start];
-    }
-    return result;
-  }
-
-  /**
-   * 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) {
-    return baseSlice(source, 0, source.length);
-  }
-
-  /**
-   * The base implementation of `_.some` without support for iteratee shorthands.
-   *
-   * @private
-   * @param {Array|Object} collection The collection to iterate over.
-   * @param {Function} predicate The function invoked per iteration.
-   * @returns {boolean} Returns `true` if any element passes the predicate check,
-   *  else `false`.
-   */
-  function baseSome(collection, predicate) {
-    var result;
-
-    baseEach(collection, function(value, index, collection) {
-      result = predicate(value, index, collection);
-      return !result;
-    });
-    return !!result;
-  }
-
-  /**
-   * The base implementation of `wrapperValue` which returns the result of
-   * performing a sequence of actions on the unwrapped `value`, where each
-   * successive action is supplied the return value of the previous.
-   *
-   * @private
-   * @param {*} value The unwrapped value.
-   * @param {Array} actions Actions to perform to resolve the unwrapped value.
-   * @returns {*} Returns the resolved value.
-   */
-  function baseWrapperValue(value, actions) {
-    var result = value;
-    return reduce(actions, function(result, action) {
-      return action.func.apply(action.thisArg, arrayPush([result], action.args));
-    }, result);
-  }
-
-  /**
-   * Compares values to sort them in ascending order.
-   *
-   * @private
-   * @param {*} value The value to compare.
-   * @param {*} other The other value to compare.
-   * @returns {number} Returns the sort order indicator for `value`.
-   */
-  function compareAscending(value, other) {
-    if (value !== other) {
-      var valIsDefined = value !== undefined,
-          valIsNull = value === null,
-          valIsReflexive = value === value,
-          valIsSymbol = false;
-
-      var othIsDefined = other !== undefined,
-          othIsNull = other === null,
-          othIsReflexive = other === other,
-          othIsSymbol = false;
-
-      if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) ||
-          (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) ||
-          (valIsNull && othIsDefined && othIsReflexive) ||
-          (!valIsDefined && othIsReflexive) ||
-          !valIsReflexive) {
-        return 1;
-      }
-      if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) ||
-          (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) ||
-          (othIsNull && valIsDefined && valIsReflexive) ||
-          (!othIsDefined && valIsReflexive) ||
-          !othIsReflexive) {
-        return -1;
-      }
-    }
-    return 0;
-  }
-
-  /**
-   * 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;
-  }
-
-  /**
-   * 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;
-
-      customizer = (assigner.length > 3 && typeof customizer == 'function')
-        ? (length--, customizer)
-        : undefined;
-
-      object = Object(object);
-      while (++index < length) {
-        var source = sources[index];
-        if (source) {
-          assigner(object, source, index, customizer);
-        }
-      }
-      return object;
-    });
-  }
-
-  /**
-   * Creates a `baseEach` or `baseEachRight` function.
-   *
-   * @private
-   * @param {Function} eachFunc The function to iterate over a collection.
-   * @param {boolean} [fromRight] Specify iterating from right to left.
-   * @returns {Function} Returns the new base function.
-   */
-  function createBaseEach(eachFunc, fromRight) {
-    return function(collection, iteratee) {
-      if (collection == null) {
-        return collection;
-      }
-      if (!isArrayLike(collection)) {
-        return eachFunc(collection, iteratee);
-      }
-      var length = collection.length,
-          index = fromRight ? length : -1,
-          iterable = Object(collection);
-
-      while ((fromRight ? index-- : ++index < length)) {
-        if (iteratee(iterable[index], index, iterable) === false) {
-          break;
-        }
-      }
-      return collection;
-    };
-  }
-
-  /**
-   * Creates a base function for methods like `_.forIn` and `_.forOwn`.
-   *
-   * @private
-   * @param {boolean} [fromRight] Specify iterating from right to left.
-   * @returns {Function} Returns the new base function.
-   */
-  function createBaseFor(fromRight) {
-    return function(object, iteratee, keysFunc) {
-      var index = -1,
-          iterable = Object(object),
-          props = keysFunc(object),
-          length = props.length;
-
-      while (length--) {
-        var key = props[fromRight ? length : ++index];
-        if (iteratee(iterable[key], key, iterable) === false) {
-          break;
-        }
-      }
-      return object;
-    };
-  }
-
-  /**
-   * Creates a function that produces an instance of `Ctor` regardless of
-   * whether it was invoked as part of a `new` expression or by `call` or `apply`.
-   *
-   * @private
-   * @param {Function} Ctor The constructor to wrap.
-   * @returns {Function} Returns the new wrapped function.
-   */
-  function createCtor(Ctor) {
-    return function() {
-      // Use a `switch` statement to work with class constructors. See
-      // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist
-      // for more details.
-      var args = arguments;
-      var thisBinding = baseCreate(Ctor.prototype),
-          result = Ctor.apply(thisBinding, args);
-
-      // Mimic the constructor's `return` behavior.
-      // See https://es5.github.io/#x13.2.2 for more details.
-      return isObject(result) ? result : thisBinding;
-    };
-  }
-
-  /**
-   * Creates a `_.find` or `_.findLast` function.
-   *
-   * @private
-   * @param {Function} findIndexFunc The function to find the collection index.
-   * @returns {Function} Returns the new find function.
-   */
-  function createFind(findIndexFunc) {
-    return function(collection, predicate, fromIndex) {
-      var iterable = Object(collection);
-      if (!isArrayLike(collection)) {
-        var iteratee = baseIteratee(predicate, 3);
-        collection = keys(collection);
-        predicate = function(key) { return iteratee(iterable[key], key, iterable); };
-      }
-      var index = findIndexFunc(collection, predicate, fromIndex);
-      return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined;
-    };
-  }
-
-  /**
-   * Creates a function that wraps `func` to invoke it with the `this` binding
-   * of `thisArg` and `partials` prepended to the arguments it receives.
-   *
-   * @private
-   * @param {Function} func The function to wrap.
-   * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
-   * @param {*} thisArg The `this` binding of `func`.
-   * @param {Array} partials The arguments to prepend to those provided to
-   *  the new function.
-   * @returns {Function} Returns the new wrapped function.
-   */
-  function createPartial(func, bitmask, thisArg, partials) {
-    if (typeof func != 'function') {
-      throw new TypeError(FUNC_ERROR_TEXT);
-    }
-    var isBind = bitmask & WRAP_BIND_FLAG,
-        Ctor = createCtor(func);
-
-    function wrapper() {
-      var argsIndex = -1,
-          argsLength = arguments.length,
-          leftIndex = -1,
-          leftLength = partials.length,
-          args = Array(leftLength + argsLength),
-          fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
-
-      while (++leftIndex < leftLength) {
-        args[leftIndex] = partials[leftIndex];
-      }
-      while (argsLength--) {
-        args[leftIndex++] = arguments[++argsIndex];
-      }
-      return fn.apply(isBind ? thisArg : this, args);
-    }
-    return wrapper;
-  }
-
-  /**
-   * 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;
-    }
-    // Check that cyclic values are equal.
-    var arrStacked = stack.get(array);
-    var othStacked = stack.get(other);
-    if (arrStacked && othStacked) {
-      return arrStacked == other && othStacked == array;
-    }
-    var index = -1,
-        result = true,
-        seen = (bitmask & COMPARE_UNORDERED_FLAG) ? [] : undefined;
-
-    // Ignore non-index properties.
-    while (++index < arrLength) {
-      var arrValue = array[index],
-          othValue = other[index];
-
-      var compared;
-      if (compared !== undefined) {
-        if (compared) {
-          continue;
-        }
-        result = false;
-        break;
-      }
-      // Recursively compare arrays (susceptible to call stack limits).
-      if (seen) {
-        if (!baseSome(other, function(othValue, othIndex) {
-              if (!indexOf(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;
-      }
-    }
-    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 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 + '');
-
-    }
-    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 = keys(object),
-        objLength = objProps.length,
-        othProps = keys(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;
-      }
-    }
-    // Check that cyclic values are equal.
-    var objStacked = stack.get(object);
-    var othStacked = stack.get(other);
-    if (objStacked && othStacked) {
-      return objStacked == other && othStacked == object;
-    }
-    var result = true;
-
-    var skipCtor = isPartial;
-    while (++index < objLength) {
-      key = objProps[index];
-      var objValue = object[key],
-          othValue = other[key];
-
-      var compared;
-      // 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;
-      }
-    }
-    return result;
-  }
-
-  /**
-   * A specialized version of `baseRest` which flattens the rest array.
-   *
-   * @private
-   * @param {Function} func The function to apply a rest parameter to.
-   * @returns {Function} Returns the new function.
-   */
-  function flatRest(func) {
-    return setToString(overRest(func, undefined, flatten), func + '');
-  }
-
-  /**
-   * 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);
-  }
-
-  /**
-   * Checks if `value` is a valid array-like index.
-   *
-   * @private
-   * @param {*} value The value to check.
-   * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
-   * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
-   */
-  function isIndex(value, length) {
-    var type = typeof value;
-    length = length == null ? MAX_SAFE_INTEGER : length;
-
-    return !!length &&
-      (type == 'number' ||
-        (type != 'symbol' && reIsUint.test(value))) &&
-          (value > -1 && value % 1 == 0 && value < length);
-  }
-
-  /**
-   * Checks if the given arguments are from an iteratee call.
-   *
-   * @private
-   * @param {*} value The potential iteratee value argument.
-   * @param {*} index The potential iteratee index or key argument.
-   * @param {*} object The potential iteratee object argument.
-   * @returns {boolean} Returns `true` if the arguments are from an iteratee call,
-   *  else `false`.
-   */
-  function isIterateeCall(value, index, object) {
-    if (!isObject(object)) {
-      return false;
-    }
-    var type = typeof index;
-    if (type == 'number'
-          ? (isArrayLike(object) && isIndex(index, object.length))
-          : (type == 'string' && index in object)
-        ) {
-      return eq(object[index], value);
-    }
-    return false;
-  }
-
-  /**
-   * 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 func.apply(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 = identity;
-
-  /*------------------------------------------------------------------------*/
-
-  /**
-   * Creates an array with all falsey values removed. The values `false`, `null`,
-   * `0`, `""`, `undefined`, and `NaN` are falsey.
-   *
-   * @static
-   * @memberOf _
-   * @since 0.1.0
-   * @category Array
-   * @param {Array} array The array to compact.
-   * @returns {Array} Returns the new array of filtered values.
-   * @example
-   *
-   * _.compact([0, 1, false, 2, '', 3]);
-   * // => [1, 2, 3]
-   */
-  function compact(array) {
-    return baseFilter(array, Boolean);
-  }
-
-  /**
-   * Creates a new array concatenating `array` with any additional arrays
-   * and/or values.
-   *
-   * @static
-   * @memberOf _
-   * @since 4.0.0
-   * @category Array
-   * @param {Array} array The array to concatenate.
-   * @param {...*} [values] The values to concatenate.
-   * @returns {Array} Returns the new concatenated array.
-   * @example
-   *
-   * var array = [1];
-   * var other = _.concat(array, 2, [3], [[4]]);
-   *
-   * console.log(other);
-   * // => [1, 2, 3, [4]]
-   *
-   * console.log(array);
-   * // => [1]
-   */
-  function concat() {
-    var length = arguments.length;
-    if (!length) {
-      return [];
-    }
-    var args = Array(length - 1),
-        array = arguments[0],
-        index = length;
-
-    while (index--) {
-      args[index - 1] = arguments[index];
-    }
-    return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1));
-  }
-
-  /**
-   * This method is like `_.find` except that it returns the index of the first
-   * element `predicate` returns truthy for instead of the element itself.
-   *
-   * @static
-   * @memberOf _
-   * @since 1.1.0
-   * @category Array
-   * @param {Array} array The array to inspect.
-   * @param {Function} [predicate=_.identity] The function invoked per iteration.
-   * @param {number} [fromIndex=0] The index to search from.
-   * @returns {number} Returns the index of the found element, else `-1`.
-   * @example
-   *
-   * var users = [
-   *   { 'user': 'barney',  'active': false },
-   *   { 'user': 'fred',    'active': false },
-   *   { 'user': 'pebbles', 'active': true }
-   * ];
-   *
-   * _.findIndex(users, function(o) { return o.user == 'barney'; });
-   * // => 0
-   *
-   * // The `_.matches` iteratee shorthand.
-   * _.findIndex(users, { 'user': 'fred', 'active': false });
-   * // => 1
-   *
-   * // The `_.matchesProperty` iteratee shorthand.
-   * _.findIndex(users, ['active', false]);
-   * // => 0
-   *
-   * // The `_.property` iteratee shorthand.
-   * _.findIndex(users, 'active');
-   * // => 2
-   */
-  function findIndex(array, predicate, fromIndex) {
-    var length = array == null ? 0 : array.length;
-    if (!length) {
-      return -1;
-    }
-    var index = fromIndex == null ? 0 : toInteger(fromIndex);
-    if (index < 0) {
-      index = nativeMax(length + index, 0);
-    }
-    return baseFindIndex(array, baseIteratee(predicate, 3), index);
-  }
-
-  /**
-   * Flattens `array` a single level deep.
-   *
-   * @static
-   * @memberOf _
-   * @since 0.1.0
-   * @category Array
-   * @param {Array} array The array to flatten.
-   * @returns {Array} Returns the new flattened array.
-   * @example
-   *
-   * _.flatten([1, [2, [3, [4]], 5]]);
-   * // => [1, 2, [3, [4]], 5]
-   */
-  function flatten(array) {
-    var length = array == null ? 0 : array.length;
-    return length ? baseFlatten(array, 1) : [];
-  }
-
-  /**
-   * Recursively flattens `array`.
-   *
-   * @static
-   * @memberOf _
-   * @since 3.0.0
-   * @category Array
-   * @param {Array} array The array to flatten.
-   * @returns {Array} Returns the new flattened array.
-   * @example
-   *
-   * _.flattenDeep([1, [2, [3, [4]], 5]]);
-   * // => [1, 2, 3, 4, 5]
-   */
-  function flattenDeep(array) {
-    var length = array == null ? 0 : array.length;
-    return length ? baseFlatten(array, INFINITY) : [];
-  }
-
-  /**
-   * Gets the first element of `array`.
-   *
-   * @static
-   * @memberOf _
-   * @since 0.1.0
-   * @alias first
-   * @category Array
-   * @param {Array} array The array to query.
-   * @returns {*} Returns the first element of `array`.
-   * @example
-   *
-   * _.head([1, 2, 3]);
-   * // => 1
-   *
-   * _.head([]);
-   * // => undefined
-   */
-  function head(array) {
-    return (array && array.length) ? array[0] : undefined;
-  }
-
-  /**
-   * Gets the index at which the first occurrence of `value` is found in `array`
-   * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
-   * for equality comparisons. If `fromIndex` is negative, it's used as the
-   * offset from the end of `array`.
-   *
-   * @static
-   * @memberOf _
-   * @since 0.1.0
-   * @category Array
-   * @param {Array} array The array to inspect.
-   * @param {*} value The value to search for.
-   * @param {number} [fromIndex=0] The index to search from.
-   * @returns {number} Returns the index of the matched value, else `-1`.
-   * @example
-   *
-   * _.indexOf([1, 2, 1, 2], 2);
-   * // => 1
-   *
-   * // Search from the `fromIndex`.
-   * _.indexOf([1, 2, 1, 2], 2, 2);
-   * // => 3
-   */
-  function indexOf(array, value, fromIndex) {
-    var length = array == null ? 0 : array.length;
-    if (typeof fromIndex == 'number') {
-      fromIndex = fromIndex < 0 ? nativeMax(length + fromIndex, 0) : fromIndex;
-    } else {
-      fromIndex = 0;
-    }
-    var index = (fromIndex || 0) - 1,
-        isReflexive = value === value;
-
-    while (++index < length) {
-      var other = array[index];
-      if ((isReflexive ? other === value : other !== other)) {
-        return index;
-      }
-    }
-    return -1;
-  }
-
-  /**
-   * Gets the last element of `array`.
-   *
-   * @static
-   * @memberOf _
-   * @since 0.1.0
-   * @category Array
-   * @param {Array} array The array to query.
-   * @returns {*} Returns the last element of `array`.
-   * @example
-   *
-   * _.last([1, 2, 3]);
-   * // => 3
-   */
-  function last(array) {
-    var length = array == null ? 0 : array.length;
-    return length ? array[length - 1] : undefined;
-  }
-
-  /**
-   * Creates a slice of `array` from `start` up to, but not including, `end`.
-   *
-   * **Note:** This method is used instead of
-   * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are
-   * returned.
-   *
-   * @static
-   * @memberOf _
-   * @since 3.0.0
-   * @category Array
-   * @param {Array} array The array to slice.
-   * @param {number} [start=0] The start position.
-   * @param {number} [end=array.length] The end position.
-   * @returns {Array} Returns the slice of `array`.
-   */
-  function slice(array, start, end) {
-    var length = array == null ? 0 : array.length;
-    start = start == null ? 0 : +start;
-    end = end === undefined ? length : +end;
-    return length ? baseSlice(array, start, end) : [];
-  }
-
-  /*------------------------------------------------------------------------*/
-
-  /**
-   * Creates a `lodash` wrapper instance that wraps `value` with explicit method
-   * chain sequences enabled. The result of such sequences must be unwrapped
-   * with `_#value`.
-   *
-   * @static
-   * @memberOf _
-   * @since 1.3.0
-   * @category Seq
-   * @param {*} value The value to wrap.
-   * @returns {Object} Returns the new `lodash` wrapper instance.
-   * @example
-   *
-   * var users = [
-   *   { 'user': 'barney',  'age': 36 },
-   *   { 'user': 'fred',    'age': 40 },
-   *   { 'user': 'pebbles', 'age': 1 }
-   * ];
-   *
-   * var youngest = _
-   *   .chain(users)
-   *   .sortBy('age')
-   *   .map(function(o) {
-   *     return o.user + ' is ' + o.age;
-   *   })
-   *   .head()
-   *   .value();
-   * // => 'pebbles is 1'
-   */
-  function chain(value) {
-    var result = lodash(value);
-    result.__chain__ = true;
-    return result;
-  }
-
-  /**
-   * This method invokes `interceptor` and returns `value`. The interceptor
-   * is invoked with one argument; (value). The purpose of this method is to
-   * "tap into" a method chain sequence in order to modify intermediate results.
-   *
-   * @static
-   * @memberOf _
-   * @since 0.1.0
-   * @category Seq
-   * @param {*} value The value to provide to `interceptor`.
-   * @param {Function} interceptor The function to invoke.
-   * @returns {*} Returns `value`.
-   * @example
-   *
-   * _([1, 2, 3])
-   *  .tap(function(array) {
-   *    // Mutate input array.
-   *    array.pop();
-   *  })
-   *  .reverse()
-   *  .value();
-   * // => [2, 1]
-   */
-  function tap(value, interceptor) {
-    interceptor(value);
-    return value;
-  }
-
-  /**
-   * This method is like `_.tap` except that it returns the result of `interceptor`.
-   * The purpose of this method is to "pass thru" values replacing intermediate
-   * results in a method chain sequence.
-   *
-   * @static
-   * @memberOf _
-   * @since 3.0.0
-   * @category Seq
-   * @param {*} value The value to provide to `interceptor`.
-   * @param {Function} interceptor The function to invoke.
-   * @returns {*} Returns the result of `interceptor`.
-   * @example
-   *
-   * _('  abc  ')
-   *  .chain()
-   *  .trim()
-   *  .thru(function(value) {
-   *    return [value];
-   *  })
-   *  .value();
-   * // => ['abc']
-   */
-  function thru(value, interceptor) {
-    return interceptor(value);
-  }
-
-  /**
-   * Creates a `lodash` wrapper instance with explicit method chain sequences enabled.
-   *
-   * @name chain
-   * @memberOf _
-   * @since 0.1.0
-   * @category Seq
-   * @returns {Object} Returns the new `lodash` wrapper instance.
-   * @example
-   *
-   * var users = [
-   *   { 'user': 'barney', 'age': 36 },
-   *   { 'user': 'fred',   'age': 40 }
-   * ];
-   *
-   * // A sequence without explicit chaining.
-   * _(users).head();
-   * // => { 'user': 'barney', 'age': 36 }
-   *
-   * // A sequence with explicit chaining.
-   * _(users)
-   *   .chain()
-   *   .head()
-   *   .pick('user')
-   *   .value();
-   * // => { 'user': 'barney' }
-   */
-  function wrapperChain() {
-    return chain(this);
-  }
-
-  /**
-   * Executes the chain sequence to resolve the unwrapped value.
-   *
-   * @name value
-   * @memberOf _
-   * @since 0.1.0
-   * @alias toJSON, valueOf
-   * @category Seq
-   * @returns {*} Returns the resolved unwrapped value.
-   * @example
-   *
-   * _([1, 2, 3]).value();
-   * // => [1, 2, 3]
-   */
-  function wrapperValue() {
-    return baseWrapperValue(this.__wrapped__, this.__actions__);
-  }
-
-  /*------------------------------------------------------------------------*/
-
-  /**
-   * Checks if `predicate` returns truthy for **all** elements of `collection`.
-   * Iteration is stopped once `predicate` returns falsey. The predicate is
-   * invoked with three arguments: (value, index|key, collection).
-   *
-   * **Note:** This method returns `true` for
-   * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because
-   * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of
-   * elements of empty collections.
-   *
-   * @static
-   * @memberOf _
-   * @since 0.1.0
-   * @category Collection
-   * @param {Array|Object} collection The collection to iterate over.
-   * @param {Function} [predicate=_.identity] The function invoked per iteration.
-   * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
-   * @returns {boolean} Returns `true` if all elements pass the predicate check,
-   *  else `false`.
-   * @example
-   *
-   * _.every([true, 1, null, 'yes'], Boolean);
-   * // => false
-   *
-   * var users = [
-   *   { 'user': 'barney', 'age': 36, 'active': false },
-   *   { 'user': 'fred',   'age': 40, 'active': false }
-   * ];
-   *
-   * // The `_.matches` iteratee shorthand.
-   * _.every(users, { 'user': 'barney', 'active': false });
-   * // => false
-   *
-   * // The `_.matchesProperty` iteratee shorthand.
-   * _.every(users, ['active', false]);
-   * // => true
-   *
-   * // The `_.property` iteratee shorthand.
-   * _.every(users, 'active');
-   * // => false
-   */
-  function every(collection, predicate, guard) {
-    predicate = guard ? undefined : predicate;
-    return baseEvery(collection, baseIteratee(predicate));
-  }
-
-  /**
-   * Iterates over elements of `collection`, returning an array of all elements
-   * `predicate` returns truthy for. The predicate is invoked with three
-   * arguments: (value, index|key, collection).
-   *
-   * **Note:** Unlike `_.remove`, this method returns a new array.
-   *
-   * @static
-   * @memberOf _
-   * @since 0.1.0
-   * @category Collection
-   * @param {Array|Object} collection The collection to iterate over.
-   * @param {Function} [predicate=_.identity] The function invoked per iteration.
-   * @returns {Array} Returns the new filtered array.
-   * @see _.reject
-   * @example
-   *
-   * var users = [
-   *   { 'user': 'barney', 'age': 36, 'active': true },
-   *   { 'user': 'fred',   'age': 40, 'active': false }
-   * ];
-   *
-   * _.filter(users, function(o) { return !o.active; });
-   * // => objects for ['fred']
-   *
-   * // The `_.matches` iteratee shorthand.
-   * _.filter(users, { 'age': 36, 'active': true });
-   * // => objects for ['barney']
-   *
-   * // The `_.matchesProperty` iteratee shorthand.
-   * _.filter(users, ['active', false]);
-   * // => objects for ['fred']
-   *
-   * // The `_.property` iteratee shorthand.
-   * _.filter(users, 'active');
-   * // => objects for ['barney']
-   *
-   * // Combining several predicates using `_.overEvery` or `_.overSome`.
-   * _.filter(users, _.overSome([{ 'age': 36 }, ['age', 40]]));
-   * // => objects for ['fred', 'barney']
-   */
-  function filter(collection, predicate) {
-    return baseFilter(collection, baseIteratee(predicate));
-  }
-
-  /**
-   * Iterates over elements of `collection`, returning the first element
-   * `predicate` returns truthy for. The predicate is invoked with three
-   * arguments: (value, index|key, collection).
-   *
-   * @static
-   * @memberOf _
-   * @since 0.1.0
-   * @category Collection
-   * @param {Array|Object} collection The collection to inspect.
-   * @param {Function} [predicate=_.identity] The function invoked per iteration.
-   * @param {number} [fromIndex=0] The index to search from.
-   * @returns {*} Returns the matched element, else `undefined`.
-   * @example
-   *
-   * var users = [
-   *   { 'user': 'barney',  'age': 36, 'active': true },
-   *   { 'user': 'fred',    'age': 40, 'active': false },
-   *   { 'user': 'pebbles', 'age': 1,  'active': true }
-   * ];
-   *
-   * _.find(users, function(o) { return o.age < 40; });
-   * // => object for 'barney'
-   *
-   * // The `_.matches` iteratee shorthand.
-   * _.find(users, { 'age': 1, 'active': true });
-   * // => object for 'pebbles'
-   *
-   * // The `_.matchesProperty` iteratee shorthand.
-   * _.find(users, ['active', false]);
-   * // => object for 'fred'
-   *
-   * // The `_.property` iteratee shorthand.
-   * _.find(users, 'active');
-   * // => object for 'barney'
-   */
-  var find = createFind(findIndex);
-
-  /**
-   * 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) {
-    return baseEach(collection, baseIteratee(iteratee));
-  }
-
-  /**
-   * Creates an array of values by running each element in `collection` thru
-   * `iteratee`. The iteratee is invoked with three arguments:
-   * (value, index|key, collection).
-   *
-   * Many lodash methods are guarded to work as iteratees for methods like
-   * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`.
-   *
-   * The guarded methods are:
-   * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`,
-   * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`,
-   * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`,
-   * `template`, `trim`, `trimEnd`, `trimStart`, and `words`
-   *
-   * @static
-   * @memberOf _
-   * @since 0.1.0
-   * @category Collection
-   * @param {Array|Object} collection The collection to iterate over.
-   * @param {Function} [iteratee=_.identity] The function invoked per iteration.
-   * @returns {Array} Returns the new mapped array.
-   * @example
-   *
-   * function square(n) {
-   *   return n * n;
-   * }
-   *
-   * _.map([4, 8], square);
-   * // => [16, 64]
-   *
-   * _.map({ 'a': 4, 'b': 8 }, square);
-   * // => [16, 64] (iteration order is not guaranteed)
-   *
-   * var users = [
-   *   { 'user': 'barney' },
-   *   { 'user': 'fred' }
-   * ];
-   *
-   * // The `_.property` iteratee shorthand.
-   * _.map(users, 'user');
-   * // => ['barney', 'fred']
-   */
-  function map(collection, iteratee) {
-    return baseMap(collection, baseIteratee(iteratee));
-  }
-
-  /**
-   * Reduces `collection` to a value which is the accumulated result of running
-   * each element in `collection` thru `iteratee`, where each successive
-   * invocation is supplied the return value of the previous. If `accumulator`
-   * is not given, the first element of `collection` is used as the initial
-   * value. The iteratee is invoked with four arguments:
-   * (accumulator, value, index|key, collection).
-   *
-   * Many lodash methods are guarded to work as iteratees for methods like
-   * `_.reduce`, `_.reduceRight`, and `_.transform`.
-   *
-   * The guarded methods are:
-   * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`,
-   * and `sortBy`
-   *
-   * @static
-   * @memberOf _
-   * @since 0.1.0
-   * @category Collection
-   * @param {Array|Object} collection The collection to iterate over.
-   * @param {Function} [iteratee=_.identity] The function invoked per iteration.
-   * @param {*} [accumulator] The initial value.
-   * @returns {*} Returns the accumulated value.
-   * @see _.reduceRight
-   * @example
-   *
-   * _.reduce([1, 2], function(sum, n) {
-   *   return sum + n;
-   * }, 0);
-   * // => 3
-   *
-   * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {
-   *   (result[value] || (result[value] = [])).push(key);
-   *   return result;
-   * }, {});
-   * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed)
-   */
-  function reduce(collection, iteratee, accumulator) {
-    return baseReduce(collection, baseIteratee(iteratee), accumulator, arguments.length < 3, baseEach);
-  }
-
-  /**
-   * Gets the size of `collection` by returning its length for array-like
-   * values or the number of own enumerable string keyed properties for objects.
-   *
-   * @static
-   * @memberOf _
-   * @since 0.1.0
-   * @category Collection
-   * @param {Array|Object|string} collection The collection to inspect.
-   * @returns {number} Returns the collection size.
-   * @example
-   *
-   * _.size([1, 2, 3]);
-   * // => 3
-   *
-   * _.size({ 'a': 1, 'b': 2 });
-   * // => 2
-   *
-   * _.size('pebbles');
-   * // => 7
-   */
-  function size(collection) {
-    if (collection == null) {
-      return 0;
-    }
-    collection = isArrayLike(collection) ? collection : nativeKeys(collection);
-    return collection.length;
-  }
-
-  /**
-   * Checks if `predicate` returns truthy for **any** element of `collection`.
-   * Iteration is stopped once `predicate` returns truthy. The predicate is
-   * invoked with three arguments: (value, index|key, collection).
-   *
-   * @static
-   * @memberOf _
-   * @since 0.1.0
-   * @category Collection
-   * @param {Array|Object} collection The collection to iterate over.
-   * @param {Function} [predicate=_.identity] The function invoked per iteration.
-   * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
-   * @returns {boolean} Returns `true` if any element passes the predicate check,
-   *  else `false`.
-   * @example
-   *
-   * _.some([null, 0, 'yes', false], Boolean);
-   * // => true
-   *
-   * var users = [
-   *   { 'user': 'barney', 'active': true },
-   *   { 'user': 'fred',   'active': false }
-   * ];
-   *
-   * // The `_.matches` iteratee shorthand.
-   * _.some(users, { 'user': 'barney', 'active': false });
-   * // => false
-   *
-   * // The `_.matchesProperty` iteratee shorthand.
-   * _.some(users, ['active', false]);
-   * // => true
-   *
-   * // The `_.property` iteratee shorthand.
-   * _.some(users, 'active');
-   * // => true
-   */
-  function some(collection, predicate, guard) {
-    predicate = guard ? undefined : predicate;
-    return baseSome(collection, baseIteratee(predicate));
-  }
-
-  /**
-   * Creates an array of elements, sorted in ascending order by the results of
-   * running each element in a collection thru each iteratee. This method
-   * performs a stable sort, that is, it preserves the original sort order of
-   * equal elements. The iteratees are invoked with one argument: (value).
-   *
-   * @static
-   * @memberOf _
-   * @since 0.1.0
-   * @category Collection
-   * @param {Array|Object} collection The collection to iterate over.
-   * @param {...(Function|Function[])} [iteratees=[_.identity]]
-   *  The iteratees to sort by.
-   * @returns {Array} Returns the new sorted array.
-   * @example
-   *
-   * var users = [
-   *   { 'user': 'fred',   'age': 48 },
-   *   { 'user': 'barney', 'age': 36 },
-   *   { 'user': 'fred',   'age': 30 },
-   *   { 'user': 'barney', 'age': 34 }
-   * ];
-   *
-   * _.sortBy(users, [function(o) { return o.user; }]);
-   * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 30]]
-   *
-   * _.sortBy(users, ['user', 'age']);
-   * // => objects for [['barney', 34], ['barney', 36], ['fred', 30], ['fred', 48]]
-   */
-  function sortBy(collection, iteratee) {
-    var index = 0;
-    iteratee = baseIteratee(iteratee);
-
-    return baseMap(baseMap(collection, function(value, key, collection) {
-      return { 'value': value, 'index': index++, 'criteria': iteratee(value, key, collection) };
-    }).sort(function(object, other) {
-      return compareAscending(object.criteria, other.criteria) || (object.index - other.index);
-    }), baseProperty('value'));
-  }
-
-  /*------------------------------------------------------------------------*/
-
-  /**
-   * Creates a function that invokes `func`, with the `this` binding and arguments
-   * of the created function, while it's called less than `n` times. Subsequent
-   * calls to the created function return the result of the last `func` invocation.
-   *
-   * @static
-   * @memberOf _
-   * @since 3.0.0
-   * @category Function
-   * @param {number} n The number of calls at which `func` is no longer invoked.
-   * @param {Function} func The function to restrict.
-   * @returns {Function} Returns the new restricted function.
-   * @example
-   *
-   * jQuery(element).on('click', _.before(5, addContactToList));
-   * // => Allows adding up to 4 contacts to the list.
-   */
-  function before(n, func) {
-    var result;
-    if (typeof func != 'function') {
-      throw new TypeError(FUNC_ERROR_TEXT);
-    }
-    n = toInteger(n);
-    return function() {
-      if (--n > 0) {
-        result = func.apply(this, arguments);
-      }
-      if (n <= 1) {
-        func = undefined;
-      }
-      return result;
-    };
-  }
-
-  /**
-   * Creates a function that invokes `func` with the `this` binding of `thisArg`
-   * and `partials` prepended to the arguments it receives.
-   *
-   * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds,
-   * may be used as a placeholder for partially applied arguments.
-   *
-   * **Note:** Unlike native `Function#bind`, this method doesn't set the "length"
-   * property of bound functions.
-   *
-   * @static
-   * @memberOf _
-   * @since 0.1.0
-   * @category Function
-   * @param {Function} func The function to bind.
-   * @param {*} thisArg The `this` binding of `func`.
-   * @param {...*} [partials] The arguments to be partially applied.
-   * @returns {Function} Returns the new bound function.
-   * @example
-   *
-   * function greet(greeting, punctuation) {
-   *   return greeting + ' ' + this.user + punctuation;
-   * }
-   *
-   * var object = { 'user': 'fred' };
-   *
-   * var bound = _.bind(greet, object, 'hi');
-   * bound('!');
-   * // => 'hi fred!'
-   *
-   * // Bound with placeholders.
-   * var bound = _.bind(greet, object, _, '!');
-   * bound('hi');
-   * // => 'hi fred!'
-   */
-  var bind = baseRest(function(func, thisArg, partials) {
-    return createPartial(func, WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG, thisArg, partials);
-  });
-
-  /**
-   * Defers invoking the `func` until the current call stack has cleared. Any
-   * additional arguments are provided to `func` when it's invoked.
-   *
-   * @static
-   * @memberOf _
-   * @since 0.1.0
-   * @category Function
-   * @param {Function} func The function to defer.
-   * @param {...*} [args] The arguments to invoke `func` with.
-   * @returns {number} Returns the timer id.
-   * @example
-   *
-   * _.defer(function(text) {
-   *   console.log(text);
-   * }, 'deferred');
-   * // => Logs 'deferred' after one millisecond.
-   */
-  var defer = baseRest(function(func, args) {
-    return baseDelay(func, 1, args);
-  });
-
-  /**
-   * Invokes `func` after `wait` milliseconds. Any additional arguments are
-   * provided to `func` when it's invoked.
-   *
-   * @static
-   * @memberOf _
-   * @since 0.1.0
-   * @category Function
-   * @param {Function} func The function to delay.
-   * @param {number} wait The number of milliseconds to delay invocation.
-   * @param {...*} [args] The arguments to invoke `func` with.
-   * @returns {number} Returns the timer id.
-   * @example
-   *
-   * _.delay(function(text) {
-   *   console.log(text);
-   * }, 1000, 'later');
-   * // => Logs 'later' after one second.
-   */
-  var delay = baseRest(function(func, wait, args) {
-    return baseDelay(func, toNumber(wait) || 0, args);
-  });
-
-  /**
-   * Creates a function that negates the result of the predicate `func`. The
-   * `func` predicate is invoked with the `this` binding and arguments of the
-   * created function.
-   *
-   * @static
-   * @memberOf _
-   * @since 3.0.0
-   * @category Function
-   * @param {Function} predicate The predicate to negate.
-   * @returns {Function} Returns the new negated function.
-   * @example
-   *
-   * function isEven(n) {
-   *   return n % 2 == 0;
-   * }
-   *
-   * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven));
-   * // => [1, 3, 5]
-   */
-  function negate(predicate) {
-    if (typeof predicate != 'function') {
-      throw new TypeError(FUNC_ERROR_TEXT);
-    }
-    return function() {
-      var args = arguments;
-      return !predicate.apply(this, args);
-    };
-  }
-
-  /**
-   * Creates a function that is restricted to invoking `func` once. Repeat calls
-   * to the function return the value of the first invocation. The `func` is
-   * invoked with the `this` binding and arguments of the created function.
-   *
-   * @static
-   * @memberOf _
-   * @since 0.1.0
-   * @category Function
-   * @param {Function} func The function to restrict.
-   * @returns {Function} Returns the new restricted function.
-   * @example
-   *
-   * var initialize = _.once(createApplication);
-   * initialize();
-   * initialize();
-   * // => `createApplication` is invoked once
-   */
-  function once(func) {
-    return before(2, func);
-  }
-
-  /*------------------------------------------------------------------------*/
-
-  /**
-   * Creates a shallow clone of `value`.
-   *
-   * **Note:** This method is loosely based on the
-   * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm)
-   * and supports cloning arrays, array buffers, booleans, date objects, maps,
-   * numbers, `Object` objects, regexes, sets, strings, symbols, and typed
-   * arrays. The own enumerable properties of `arguments` objects are cloned
-   * as plain objects. An empty object is returned for uncloneable values such
-   * as error objects, functions, DOM nodes, and WeakMaps.
-   *
-   * @static
-   * @memberOf _
-   * @since 0.1.0
-   * @category Lang
-   * @param {*} value The value to clone.
-   * @returns {*} Returns the cloned value.
-   * @see _.cloneDeep
-   * @example
-   *
-   * var objects = [{ 'a': 1 }, { 'b': 2 }];
-   *
-   * var shallow = _.clone(objects);
-   * console.log(shallow[0] === objects[0]);
-   * // => true
-   */
-  function clone(value) {
-    if (!isObject(value)) {
-      return value;
-    }
-    return isArray(value) ? copyArray(value) : copyObject(value, nativeKeys(value));
-  }
-
-  /**
-   * 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);
-  }
-
-  /**
-   * Checks if `value` is classified as a boolean primitive or object.
-   *
-   * @static
-   * @memberOf _
-   * @since 0.1.0
-   * @category Lang
-   * @param {*} value The value to check.
-   * @returns {boolean} Returns `true` if `value` is a boolean, else `false`.
-   * @example
-   *
-   * _.isBoolean(false);
-   * // => true
-   *
-   * _.isBoolean(null);
-   * // => false
-   */
-  function isBoolean(value) {
-    return value === true || value === false ||
-      (isObjectLike(value) && baseGetTag(value) == boolTag);
-  }
-
-  /**
-   * Checks if `value` is classified as a `Date` object.
-   *
-   * @static
-   * @memberOf _
-   * @since 0.1.0
-   * @category Lang
-   * @param {*} value The value to check.
-   * @returns {boolean} Returns `true` if `value` is a date object, else `false`.
-   * @example
-   *
-   * _.isDate(new Date);
-   * // => true
-   *
-   * _.isDate('Mon April 23 2012');
-   * // => false
-   */
-  var isDate = baseIsDate;
-
-  /**
-   * Checks if `value` is an empty object, collection, map, or set.
-   *
-   * Objects are considered empty if they have no own enumerable string keyed
-   * properties.
-   *
-   * Array-like values such as `arguments` objects, arrays, buffers, strings, or
-   * jQuery-like collections are considered empty if they have a `length` of `0`.
-   * Similarly, maps and sets are considered empty if they have a `size` of `0`.
-   *
-   * @static
-   * @memberOf _
-   * @since 0.1.0
-   * @category Lang
-   * @param {*} value The value to check.
-   * @returns {boolean} Returns `true` if `value` is empty, else `false`.
-   * @example
-   *
-   * _.isEmpty(null);
-   * // => true
-   *
-   * _.isEmpty(true);
-   * // => true
-   *
-   * _.isEmpty(1);
-   * // => true
-   *
-   * _.isEmpty([1, 2, 3]);
-   * // => false
-   *
-   * _.isEmpty({ 'a': 1 });
-   * // => false
-   */
-  function isEmpty(value) {
-    if (isArrayLike(value) &&
-        (isArray(value) || isString(value) ||
-          isFunction(value.splice) || isArguments(value))) {
-      return !value.length;
-    }
-    return !nativeKeys(value).length;
-  }
-
-  /**
-   * Performs a deep comparison between two values to determine if they are
-   * equivalent.
-   *
-   * **Note:** This method supports comparing arrays, array buffers, booleans,
-   * date objects, error objects, maps, numbers, `Object` objects, regexes,
-   * sets, strings, symbols, and typed arrays. `Object` objects are compared
-   * by their own, not inherited, enumerable properties. Functions and DOM
-   * nodes are compared by strict equality, i.e. `===`.
-   *
-   * @static
-   * @memberOf _
-   * @since 0.1.0
-   * @category Lang
-   * @param {*} value The value to compare.
-   * @param {*} other The other value to compare.
-   * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
-   * @example
-   *
-   * var object = { 'a': 1 };
-   * var other = { 'a': 1 };
-   *
-   * _.isEqual(object, other);
-   * // => true
-   *
-   * object === other;
-   * // => false
-   */
-  function isEqual(value, other) {
-    return baseIsEqual(value, other);
-  }
-
-  /**
-   * Checks if `value` is a finite primitive number.
-   *
-   * **Note:** This method is based on
-   * [`Number.isFinite`](https://mdn.io/Number/isFinite).
-   *
-   * @static
-   * @memberOf _
-   * @since 0.1.0
-   * @category Lang
-   * @param {*} value The value to check.
-   * @returns {boolean} Returns `true` if `value` is a finite number, else `false`.
-   * @example
-   *
-   * _.isFinite(3);
-   * // => true
-   *
-   * _.isFinite(Number.MIN_VALUE);
-   * // => true
-   *
-   * _.isFinite(Infinity);
-   * // => false
-   *
-   * _.isFinite('3');
-   * // => false
-   */
-  function isFinite(value) {
-    return typeof value == 'number' && nativeIsFinite(value);
-  }
-
-  /**
-   * Checks if `value` is classified as a `Function` object.
-   *
-   * @static
-   * @memberOf _
-   * @since 0.1.0
-   * @category Lang
-   * @param {*} value The value to check.
-   * @returns {boolean} Returns `true` if `value` is a function, else `false`.
-   * @example
-   *
-   * _.isFunction(_);
-   * // => true
-   *
-   * _.isFunction(/abc/);
-   * // => false
-   */
-  function isFunction(value) {
-    if (!isObject(value)) {
-      return false;
-    }
-    // The use of `Object#toString` avoids issues with the `typeof` operator
-    // in Safari 9 which returns 'object' for typed arrays and other constructors.
-    var tag = baseGetTag(value);
-    return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag;
-  }
-
-  /**
-   * Checks if `value` is 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 `NaN`.
-   *
-   * **Note:** This method is based on
-   * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as
-   * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for
-   * `undefined` and other non-number values.
-   *
-   * @static
-   * @memberOf _
-   * @since 0.1.0
-   * @category Lang
-   * @param {*} value The value to check.
-   * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.
-   * @example
-   *
-   * _.isNaN(NaN);
-   * // => true
-   *
-   * _.isNaN(new Number(NaN));
-   * // => true
-   *
-   * isNaN(undefined);
-   * // => true
-   *
-   * _.isNaN(undefined);
-   * // => false
-   */
-  function isNaN(value) {
-    // An `NaN` primitive is the only value that is not equal to itself.
-    // Perform the `toStringTag` check first to avoid errors with some
-    // ActiveX objects in IE.
-    return isNumber(value) && value != +value;
-  }
-
-  /**
-   * Checks if `value` is `null`.
-   *
-   * @static
-   * @memberOf _
-   * @since 0.1.0
-   * @category Lang
-   * @param {*} value The value to check.
-   * @returns {boolean} Returns `true` if `value` is `null`, else `false`.
-   * @example
-   *
-   * _.isNull(null);
-   * // => true
-   *
-   * _.isNull(void 0);
-   * // => false
-   */
-  function isNull(value) {
-    return value === null;
-  }
-
-  /**
-   * Checks if `value` is classified as a `Number` primitive or object.
-   *
-   * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are
-   * classified as numbers, use the `_.isFinite` method.
-   *
-   * @static
-   * @memberOf _
-   * @since 0.1.0
-   * @category Lang
-   * @param {*} value The value to check.
-   * @returns {boolean} Returns `true` if `value` is a number, else `false`.
-   * @example
-   *
-   * _.isNumber(3);
-   * // => true
-   *
-   * _.isNumber(Number.MIN_VALUE);
-   * // => true
-   *
-   * _.isNumber(Infinity);
-   * // => true
-   *
-   * _.isNumber('3');
-   * // => false
-   */
-  function isNumber(value) {
-    return typeof value == 'number' ||
-      (isObjectLike(value) && baseGetTag(value) == numberTag);
-  }
-
-  /**
-   * Checks if `value` is classified as a `RegExp` object.
-   *
-   * @static
-   * @memberOf _
-   * @since 0.1.0
-   * @category Lang
-   * @param {*} value The value to check.
-   * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.
-   * @example
-   *
-   * _.isRegExp(/abc/);
-   * // => true
-   *
-   * _.isRegExp('/abc/');
-   * // => false
-   */
-  var isRegExp = baseIsRegExp;
-
-  /**
-   * 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 `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 (!isArrayLike(value)) {
-      return values(value);
-    }
-    return value.length ? copyArray(value) : [];
-  }
-
-  /**
-   * 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
-   */
-  var toInteger = Number;
-
-  /**
-   * 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
-   */
-  var toNumber = Number;
-
-  /**
-   * 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) {
-    if (typeof value == 'string') {
-      return value;
-    }
-    return value == null ? '' : (value + '');
-  }
-
-  /*------------------------------------------------------------------------*/
-
-  /**
-   * Assigns own enumerable string keyed properties of source objects to the
-   * destination object. Source objects are applied from left to right.
-   * Subsequent sources overwrite property assignments of previous sources.
-   *
-   * **Note:** This method mutates `object` and is loosely based on
-   * [`Object.assign`](https://mdn.io/Object/assign).
-   *
-   * @static
-   * @memberOf _
-   * @since 0.10.0
-   * @category Object
-   * @param {Object} object The destination object.
-   * @param {...Object} [sources] The source objects.
-   * @returns {Object} Returns `object`.
-   * @see _.assignIn
-   * @example
-   *
-   * function Foo() {
-   *   this.a = 1;
-   * }
-   *
-   * function Bar() {
-   *   this.c = 3;
-   * }
-   *
-   * Foo.prototype.b = 2;
-   * Bar.prototype.d = 4;
-   *
-   * _.assign({ 'a': 0 }, new Foo, new Bar);
-   * // => { 'a': 1, 'c': 3 }
-   */
-  var assign = createAssigner(function(object, source) {
-    copyObject(source, nativeKeys(source), object);
-  });
-
-  /**
-   * This method is like `_.assign` except that it iterates over own and
-   * inherited source properties.
-   *
-   * **Note:** This method mutates `object`.
-   *
-   * @static
-   * @memberOf _
-   * @since 4.0.0
-   * @alias extend
-   * @category Object
-   * @param {Object} object The destination object.
-   * @param {...Object} [sources] The source objects.
-   * @returns {Object} Returns `object`.
-   * @see _.assign
-   * @example
-   *
-   * function Foo() {
-   *   this.a = 1;
-   * }
-   *
-   * function Bar() {
-   *   this.c = 3;
-   * }
-   *
-   * Foo.prototype.b = 2;
-   * Bar.prototype.d = 4;
-   *
-   * _.assignIn({ 'a': 0 }, new Foo, new Bar);
-   * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 }
-   */
-  var assignIn = createAssigner(function(object, source) {
-    copyObject(source, nativeKeysIn(source), object);
-  });
-
-  /**
-   * Creates an object that inherits from the `prototype` object. If a
-   * `properties` object is given, its own enumerable string keyed properties
-   * are assigned to the created object.
-   *
-   * @static
-   * @memberOf _
-   * @since 2.3.0
-   * @category Object
-   * @param {Object} prototype The object to inherit from.
-   * @param {Object} [properties] The properties to assign to the object.
-   * @returns {Object} Returns the new object.
-   * @example
-   *
-   * function Shape() {
-   *   this.x = 0;
-   *   this.y = 0;
-   * }
-   *
-   * function Circle() {
-   *   Shape.call(this);
-   * }
-   *
-   * Circle.prototype = _.create(Shape.prototype, {
-   *   'constructor': Circle
-   * });
-   *
-   * var circle = new Circle;
-   * circle instanceof Circle;
-   * // => true
-   *
-   * circle instanceof Shape;
-   * // => true
-   */
-  function create(prototype, properties) {
-    var result = baseCreate(prototype);
-    return properties == null ? result : assign(result, properties);
-  }
-
-  /**
-   * Assigns own and inherited enumerable string keyed properties of source
-   * objects to the destination object for all destination properties that
-   * resolve to `undefined`. Source objects are applied from left to right.
-   * Once a property is set, additional values of the same property are ignored.
-   *
-   * **Note:** This method mutates `object`.
-   *
-   * @static
-   * @since 0.1.0
-   * @memberOf _
-   * @category Object
-   * @param {Object} object The destination object.
-   * @param {...Object} [sources] The source objects.
-   * @returns {Object} Returns `object`.
-   * @see _.defaultsDeep
-   * @example
-   *
-   * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
-   * // => { 'a': 1, 'b': 2 }
-   */
-  var defaults = baseRest(function(object, sources) {
-    object = Object(object);
-
-    var index = -1;
-    var length = sources.length;
-    var guard = length > 2 ? sources[2] : undefined;
-
-    if (guard && isIterateeCall(sources[0], sources[1], guard)) {
-      length = 1;
-    }
-
-    while (++index < length) {
-      var source = sources[index];
-      var props = keysIn(source);
-      var propsIndex = -1;
-      var propsLength = props.length;
-
-      while (++propsIndex < propsLength) {
-        var key = props[propsIndex];
-        var value = object[key];
-
-        if (value === undefined ||
-            (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) {
-          object[key] = source[key];
-        }
-      }
-    }
-
-    return object;
-  });
-
-  /**
-   * Checks if `path` is a direct property of `object`.
-   *
-   * @static
-   * @since 0.1.0
-   * @memberOf _
-   * @category Object
-   * @param {Object} object The object to query.
-   * @param {Array|string} path The path to check.
-   * @returns {boolean} Returns `true` if `path` exists, else `false`.
-   * @example
-   *
-   * var object = { 'a': { 'b': 2 } };
-   * var other = _.create({ 'a': _.create({ 'b': 2 }) });
-   *
-   * _.has(object, 'a');
-   * // => true
-   *
-   * _.has(object, 'a.b');
-   * // => true
-   *
-   * _.has(object, ['a', 'b']);
-   * // => true
-   *
-   * _.has(other, 'a');
-   * // => false
-   */
-  function has(object, path) {
-    return object != null && hasOwnProperty.call(object, path);
-  }
-
-  /**
-   * 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']
-   */
-  var keys = nativeKeys;
-
-  /**
-   * 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)
-   */
-  var keysIn = nativeKeysIn;
-
-  /**
-   * Creates an object composed of the picked `object` properties.
-   *
-   * @static
-   * @since 0.1.0
-   * @memberOf _
-   * @category Object
-   * @param {Object} object The source object.
-   * @param {...(string|string[])} [paths] The property paths to pick.
-   * @returns {Object} Returns the new object.
-   * @example
-   *
-   * var object = { 'a': 1, 'b': '2', 'c': 3 };
-   *
-   * _.pick(object, ['a', 'c']);
-   * // => { 'a': 1, 'c': 3 }
-   */
-  var pick = flatRest(function(object, paths) {
-    return object == null ? {} : basePick(object, paths);
-  });
-
-  /**
-   * This method is like `_.get` except that if the resolved value is a
-   * function it's invoked with the `this` binding of its parent object and
-   * its result is returned.
-   *
-   * @static
-   * @since 0.1.0
-   * @memberOf _
-   * @category Object
-   * @param {Object} object The object to query.
-   * @param {Array|string} path The path of the property to resolve.
-   * @param {*} [defaultValue] The value returned for `undefined` resolved values.
-   * @returns {*} Returns the resolved value.
-   * @example
-   *
-   * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] };
-   *
-   * _.result(object, 'a[0].b.c1');
-   * // => 3
-   *
-   * _.result(object, 'a[0].b.c2');
-   * // => 4
-   *
-   * _.result(object, 'a[0].b.c3', 'default');
-   * // => 'default'
-   *
-   * _.result(object, 'a[0].b.c3', _.constant('default'));
-   * // => 'default'
-   */
-  function result(object, path, defaultValue) {
-    var value = object == null ? undefined : object[path];
-    if (value === undefined) {
-      value = defaultValue;
-    }
-    return isFunction(value) ? value.call(object) : 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));
-  }
-
-  /*------------------------------------------------------------------------*/
-
-  /**
-   * Converts the characters "&", "<", ">", '"', and "'" in `string` to their
-   * corresponding HTML entities.
-   *
-   * **Note:** No other characters are escaped. To escape additional
-   * characters use a third-party library like [_he_](https://mths.be/he).
-   *
-   * Though the ">" character is escaped for symmetry, characters like
-   * ">" and "/" don't need escaping in HTML and have no special meaning
-   * unless they're part of a tag or unquoted attribute value. See
-   * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands)
-   * (under "semi-related fun fact") for more details.
-   *
-   * When working with HTML you should always
-   * [quote attribute values](http://wonko.com/post/html-escaping) to reduce
-   * XSS vectors.
-   *
-   * @static
-   * @since 0.1.0
-   * @memberOf _
-   * @category String
-   * @param {string} [string=''] The string to escape.
-   * @returns {string} Returns the escaped string.
-   * @example
-   *
-   * _.escape('fred, barney, & pebbles');
-   * // => 'fred, barney, &amp; pebbles'
-   */
-  function escape(string) {
-    string = toString(string);
-    return (string && reHasUnescapedHtml.test(string))
-      ? string.replace(reUnescapedHtml, escapeHtmlChar)
-      : string;
-  }
-
-  /*------------------------------------------------------------------------*/
-
-  /**
-   * 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']
-   */
-  var iteratee = baseIteratee;
-
-  /**
-   * Creates a function that performs a partial deep comparison between a given
-   * object and `source`, returning `true` if the given object has equivalent
-   * property values, else `false`.
-   *
-   * **Note:** The created function is equivalent to `_.isMatch` with `source`
-   * partially applied.
-   *
-   * Partial comparisons will match empty array and empty object `source`
-   * values against any array or object value, respectively. See `_.isEqual`
-   * for a list of supported value comparisons.
-   *
-   * **Note:** Multiple values can be checked by combining several matchers
-   * using `_.overSome`
-   *
-   * @static
-   * @memberOf _
-   * @since 3.0.0
-   * @category Util
-   * @param {Object} source The object of property values to match.
-   * @returns {Function} Returns the new spec function.
-   * @example
-   *
-   * var objects = [
-   *   { 'a': 1, 'b': 2, 'c': 3 },
-   *   { 'a': 4, 'b': 5, 'c': 6 }
-   * ];
-   *
-   * _.filter(objects, _.matches({ 'a': 4, 'c': 6 }));
-   * // => [{ 'a': 4, 'b': 5, 'c': 6 }]
-   *
-   * // Checking for several possible values
-   * _.filter(objects, _.overSome([_.matches({ 'a': 1 }), _.matches({ 'a': 4 })]));
-   * // => [{ 'a': 1, 'b': 2, 'c': 3 }, { 'a': 4, 'b': 5, 'c': 6 }]
-   */
-  function matches(source) {
-    return baseMatches(assign({}, source));
-  }
-
-  /**
-   * Adds all own enumerable string keyed function properties of a source
-   * object to the destination object. If `object` is a function, then methods
-   * are added to its prototype as well.
-   *
-   * **Note:** Use `_.runInContext` to create a pristine `lodash` function to
-   * avoid conflicts caused by modifying the original.
-   *
-   * @static
-   * @since 0.1.0
-   * @memberOf _
-   * @category Util
-   * @param {Function|Object} [object=lodash] The destination object.
-   * @param {Object} source The object of functions to add.
-   * @param {Object} [options={}] The options object.
-   * @param {boolean} [options.chain=true] Specify whether mixins are chainable.
-   * @returns {Function|Object} Returns `object`.
-   * @example
-   *
-   * function vowels(string) {
-   *   return _.filter(string, function(v) {
-   *     return /[aeiou]/i.test(v);
-   *   });
-   * }
-   *
-   * _.mixin({ 'vowels': vowels });
-   * _.vowels('fred');
-   * // => ['e']
-   *
-   * _('fred').vowels().value();
-   * // => ['e']
-   *
-   * _.mixin({ 'vowels': vowels }, { 'chain': false });
-   * _('fred').vowels();
-   * // => ['e']
-   */
-  function mixin(object, source, options) {
-    var props = keys(source),
-        methodNames = baseFunctions(source, props);
-
-    if (options == null &&
-        !(isObject(source) && (methodNames.length || !props.length))) {
-      options = source;
-      source = object;
-      object = this;
-      methodNames = baseFunctions(source, keys(source));
-    }
-    var chain = !(isObject(options) && 'chain' in options) || !!options.chain,
-        isFunc = isFunction(object);
-
-    baseEach(methodNames, function(methodName) {
-      var func = source[methodName];
-      object[methodName] = func;
-      if (isFunc) {
-        object.prototype[methodName] = function() {
-          var chainAll = this.__chain__;
-          if (chain || chainAll) {
-            var result = object(this.__wrapped__),
-                actions = result.__actions__ = copyArray(this.__actions__);
-
-            actions.push({ 'func': func, 'args': arguments, 'thisArg': object });
-            result.__chain__ = chainAll;
-            return result;
-          }
-          return func.apply(object, arrayPush([this.value()], arguments));
-        };
-      }
-    });
-
-    return object;
-  }
-
-  /**
-   * Reverts the `_` variable to its previous value and returns a reference to
-   * the `lodash` function.
-   *
-   * @static
-   * @since 0.1.0
-   * @memberOf _
-   * @category Util
-   * @returns {Function} Returns the `lodash` function.
-   * @example
-   *
-   * var lodash = _.noConflict();
-   */
-  function noConflict() {
-    if (root._ === this) {
-      root._ = oldDash;
-    }
-    return this;
-  }
-
-  /**
-   * This method returns `undefined`.
-   *
-   * @static
-   * @memberOf _
-   * @since 2.3.0
-   * @category Util
-   * @example
-   *
-   * _.times(2, _.noop);
-   * // => [undefined, undefined]
-   */
-  function noop() {
-    // No operation performed.
-  }
-
-  /**
-   * Generates a unique ID. If `prefix` is given, the ID is appended to it.
-   *
-   * @static
-   * @since 0.1.0
-   * @memberOf _
-   * @category Util
-   * @param {string} [prefix=''] The value to prefix the ID with.
-   * @returns {string} Returns the unique ID.
-   * @example
-   *
-   * _.uniqueId('contact_');
-   * // => 'contact_104'
-   *
-   * _.uniqueId();
-   * // => '105'
-   */
-  function uniqueId(prefix) {
-    var id = ++idCounter;
-    return toString(prefix) + id;
-  }
-
-  /*------------------------------------------------------------------------*/
-
-  /**
-   * Computes the maximum value of `array`. If `array` is empty or falsey,
-   * `undefined` is returned.
-   *
-   * @static
-   * @since 0.1.0
-   * @memberOf _
-   * @category Math
-   * @param {Array} array The array to iterate over.
-   * @returns {*} Returns the maximum value.
-   * @example
-   *
-   * _.max([4, 2, 8, 6]);
-   * // => 8
-   *
-   * _.max([]);
-   * // => undefined
-   */
-  function max(array) {
-    return (array && array.length)
-      ? baseExtremum(array, identity, baseGt)
-      : undefined;
-  }
-
-  /**
-   * Computes the minimum value of `array`. If `array` is empty or falsey,
-   * `undefined` is returned.
-   *
-   * @static
-   * @since 0.1.0
-   * @memberOf _
-   * @category Math
-   * @param {Array} array The array to iterate over.
-   * @returns {*} Returns the minimum value.
-   * @example
-   *
-   * _.min([4, 2, 8, 6]);
-   * // => 2
-   *
-   * _.min([]);
-   * // => undefined
-   */
-  function min(array) {
-    return (array && array.length)
-      ? baseExtremum(array, identity, baseLt)
-      : undefined;
-  }
-
-  /*------------------------------------------------------------------------*/
-
-  // Add methods that return wrapped values in chain sequences.
-  lodash.assignIn = assignIn;
-  lodash.before = before;
-  lodash.bind = bind;
-  lodash.chain = chain;
-  lodash.compact = compact;
-  lodash.concat = concat;
-  lodash.create = create;
-  lodash.defaults = defaults;
-  lodash.defer = defer;
-  lodash.delay = delay;
-  lodash.filter = filter;
-  lodash.flatten = flatten;
-  lodash.flattenDeep = flattenDeep;
-  lodash.iteratee = iteratee;
-  lodash.keys = keys;
-  lodash.map = map;
-  lodash.matches = matches;
-  lodash.mixin = mixin;
-  lodash.negate = negate;
-  lodash.once = once;
-  lodash.pick = pick;
-  lodash.slice = slice;
-  lodash.sortBy = sortBy;
-  lodash.tap = tap;
-  lodash.thru = thru;
-  lodash.toArray = toArray;
-  lodash.values = values;
-
-  // Add aliases.
-  lodash.extend = assignIn;
-
-  // Add methods to `lodash.prototype`.
-  mixin(lodash, lodash);
-
-  /*------------------------------------------------------------------------*/
-
-  // Add methods that return unwrapped values in chain sequences.
-  lodash.clone = clone;
-  lodash.escape = escape;
-  lodash.every = every;
-  lodash.find = find;
-  lodash.forEach = forEach;
-  lodash.has = has;
-  lodash.head = head;
-  lodash.identity = identity;
-  lodash.indexOf = indexOf;
-  lodash.isArguments = isArguments;
-  lodash.isArray = isArray;
-  lodash.isBoolean = isBoolean;
-  lodash.isDate = isDate;
-  lodash.isEmpty = isEmpty;
-  lodash.isEqual = isEqual;
-  lodash.isFinite = isFinite;
-  lodash.isFunction = isFunction;
-  lodash.isNaN = isNaN;
-  lodash.isNull = isNull;
-  lodash.isNumber = isNumber;
-  lodash.isObject = isObject;
-  lodash.isRegExp = isRegExp;
-  lodash.isString = isString;
-  lodash.isUndefined = isUndefined;
-  lodash.last = last;
-  lodash.max = max;
-  lodash.min = min;
-  lodash.noConflict = noConflict;
-  lodash.noop = noop;
-  lodash.reduce = reduce;
-  lodash.result = result;
-  lodash.size = size;
-  lodash.some = some;
-  lodash.uniqueId = uniqueId;
-
-  // Add aliases.
-  lodash.each = forEach;
-  lodash.first = head;
-
-  mixin(lodash, (function() {
-    var source = {};
-    baseForOwn(lodash, function(func, methodName) {
-      if (!hasOwnProperty.call(lodash.prototype, methodName)) {
-        source[methodName] = func;
-      }
-    });
-    return source;
-  }()), { 'chain': false });
-
-  /*------------------------------------------------------------------------*/
-
-  /**
-   * The semantic version number.
-   *
-   * @static
-   * @memberOf _
-   * @type {string}
-   */
-  lodash.VERSION = VERSION;
-
-  // Add `Array` methods to `lodash.prototype`.
-  baseEach(['pop', 'join', 'replace', 'reverse', 'split', 'push', 'shift', 'sort', 'splice', 'unshift'], function(methodName) {
-    var func = (/^(?:replace|split)$/.test(methodName) ? String.prototype : arrayProto)[methodName],
-        chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru',
-        retUnwrapped = /^(?:pop|join|replace|shift)$/.test(methodName);
-
-    lodash.prototype[methodName] = function() {
-      var args = arguments;
-      if (retUnwrapped && !this.__chain__) {
-        var value = this.value();
-        return func.apply(isArray(value) ? value : [], args);
-      }
-      return this[chainName](function(value) {
-        return func.apply(isArray(value) ? value : [], args);
-      });
-    };
-  });
-
-  // Add chain sequence methods to the `lodash` wrapper.
-  lodash.prototype.toJSON = lodash.prototype.valueOf = lodash.prototype.value = wrapperValue;
-
-  /*--------------------------------------------------------------------------*/
-
-  // Some AMD build optimizers, like r.js, check for condition patterns like:
-  if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) {
-    // Expose Lodash on the global object to prevent errors when Lodash is
-    // loaded by a script tag in the presence of an AMD loader.
-    // See http://requirejs.org/docs/errors.html#mismatch for more details.
-    // Use `_.noConflict` to remove Lodash from the global object.
-    root._ = lodash;
-
-    // Define as an anonymous module so, through path mapping, it can be
-    // referenced as the "underscore" module.
-    define(function() {
-      return lodash;
-    });
-  }
-  // Check for `exports` after `define` in case a build optimizer adds it.
-  else if (freeModule) {
-    // Export for Node.js.
-    (freeModule.exports = lodash)._ = lodash;
-    // Export for CommonJS support.
-    freeExports._ = lodash;
-  }
-  else {
-    // Export to the global object.
-    root._ = lodash;
-  }
-}.call(this));