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define(['./isObject'], function(isObject) {
  /** `Object#toString` result references. */  var funcTag = '[object Function]',      genTag = '[object GeneratorFunction]';
  /** Used for built-in method references. */  var objectProto = Object.prototype;
  /**   * Used to resolve the   * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)   * of values.   */  var objectToString = objectProto.toString;
  /**   * Checks if `value` is classified as a `Function` object.   *   * @static   * @memberOf _   * @since 0.1.0   * @category Lang   * @param {*} value The value to check.   * @returns {boolean} Returns `true` if `value` is a function, else `false`.   * @example   *   * _.isFunction(_);   * // => true   *   * _.isFunction(/abc/);   * // => false   */  function isFunction(value) {    // The use of `Object#toString` avoids issues with the `typeof` operator    // in Safari 8-9 which returns 'object' for typed array and other constructors.    var tag = isObject(value) ? objectToString.call(value) : '';    return tag == funcTag || tag == genTag;  }
  return isFunction;});