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define(['./_baseClamp', './_baseRandom', './_isIterateeCall', './toArray', './toInteger'], function(baseClamp, baseRandom, isIterateeCall, toArray, toInteger) {
  /** Used as a safe reference for `undefined` in pre-ES5 environments. */  var undefined;
  /**   * Gets `n` random elements at unique keys from `collection` up to the   * size of `collection`.   *   * @static   * @memberOf _   * @since 4.0.0   * @category Collection   * @param {Array|Object} collection The collection to sample.   * @param {number} [n=1] The number of elements to sample.   * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.   * @returns {Array} Returns the random elements.   * @example   *   * _.sampleSize([1, 2, 3], 2);   * // => [3, 1]   *   * _.sampleSize([1, 2, 3], 4);   * // => [2, 3, 1]   */  function sampleSize(collection, n, guard) {    var index = -1,        result = toArray(collection),        length = result.length,        lastIndex = length - 1;
    if ((guard ? isIterateeCall(collection, n, guard) : n === undefined)) {      n = 1;    } else {      n = baseClamp(toInteger(n), 0, length);    }    while (++index < n) {      var rand = baseRandom(index, lastIndex),          value = result[rand];
      result[rand] = result[index];      result[index] = value;    }    result.length = n;    return result;  }
  return sampleSize;});