12345678910111213141516171819
define(['./flatten', './_overRest', './_setToString'], function(flatten, overRest, setToString) {
  /** Used as a safe reference for `undefined` in pre-ES5 environments. */  var undefined;
  /**   * 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 + '');  }
  return flatRest;});