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