define(['./_baseForOwn', './_baseIteratee'], function(baseForOwn, baseIteratee) {

  /**
   * The opposite of `_.mapValues`; this method creates an object with the
   * same values as `object` and keys generated by running each own enumerable
   * property of `object` through `iteratee`. The iteratee is invoked with
   * three arguments: (value, key, object).
   *
   * @static
   * @memberOf _
   * @category Object
   * @param {Object} object The object to iterate over.
   * @param {Function|Object|string} [iteratee=_.identity] The function invoked per iteration.
   * @returns {Object} Returns the new mapped object.
   * @example
   *
   * _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) {
   *   return key + value;
   * });
   * // => { 'a1': 1, 'b2': 2 }
   */
  function mapKeys(object, iteratee) {
    var result = {};
    iteratee = baseIteratee(iteratee, 3);

    baseForOwn(object, function(value, key, object) {
      result[iteratee(value, key, object)] = value;
    });
    return result;
  }

  return mapKeys;
});