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define(['./_baseFlatten', './toInteger'], function(baseFlatten, toInteger) {
  /** Used as a safe reference for `undefined` in pre-ES5 environments. */  var undefined;
  /**   * Recursively flatten `array` up to `depth` times.   *   * @static   * @memberOf _   * @since 4.4.0   * @category Array   * @param {Array} array The array to flatten.   * @param {number} [depth=1] The maximum recursion depth.   * @returns {Array} Returns the new flattened array.   * @example   *   * var array = [1, [2, [3, [4]], 5]];   *   * _.flattenDepth(array, 1);   * // => [1, 2, [3, [4]], 5]   *   * _.flattenDepth(array, 2);   * // => [1, 2, 3, [4], 5]   */  function flattenDepth(array, depth) {    var length = array == null ? 0 : array.length;    if (!length) {      return [];    }    depth = depth === undefined ? 1 : toInteger(depth);    return baseFlatten(array, depth);  }
  return flattenDepth;});