function f(a) { var _ref, _ref2, _ref3; var b = (_ref = (arguments.length <= 1 ? 0 : arguments.length - 1) - 3 + 1, _ref < 1 || arguments.length <= _ref ? undefined : arguments[_ref]); var c = (_ref2 = (arguments.length <= 1 ? 0 : arguments.length - 1) - 2 + 1, _ref2 < 1 || arguments.length <= _ref2 ? undefined : arguments[_ref2]); var d = (_ref3 = (arguments.length <= 1 ? 0 : arguments.length - 1) - 1 + 1, _ref3 < 1 || arguments.length <= _ref3 ? undefined : arguments[_ref3]); return [a, b, c, d]; } function f(a) { return void 0; }