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define(['./_baseDifference', './_baseFlatten', './_baseIteratee', './_baseRest', './isArrayLikeObject', './last'], function(baseDifference, baseFlatten, baseIteratee, baseRest, isArrayLikeObject, last) {
  /** Used as a safe reference for `undefined` in pre-ES5 environments. */  var undefined;
  /**   * This method is like `_.difference` except that it accepts `iteratee` which   * is invoked for each element of `array` and `values` to generate the criterion   * by which they're compared. The order and references of result values are   * determined by the first array. The iteratee is invoked with one argument:   * (value).   *   * **Note:** Unlike `_.pullAllBy`, this method returns a new array.   *   * @static   * @memberOf _   * @since 4.0.0   * @category Array   * @param {Array} array The array to inspect.   * @param {...Array} [values] The values to exclude.   * @param {Function} [iteratee=_.identity] The iteratee invoked per element.   * @returns {Array} Returns the new array of filtered values.   * @example   *   * _.differenceBy([2.1, 1.2], [2.3, 3.4], Math.floor);   * // => [1.2]   *   * // The `_.property` iteratee shorthand.   * _.differenceBy([{ 'x': 2 }, { 'x': 1 }], [{ 'x': 1 }], 'x');   * // => [{ 'x': 2 }]   */  var differenceBy = baseRest(function(array, values) {    var iteratee = last(values);    if (isArrayLikeObject(iteratee)) {      iteratee = undefined;    }    return isArrayLikeObject(array)      ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), baseIteratee(iteratee, 2))      : [];  });
  return differenceBy;});