Pinq\Tests\Integration\Traversable\GroupJoinTest::_testReturnsNewInstanceOfSameTypeWithSameScheme PHP Метод

    protected function _testReturnsNewInstanceOfSameTypeWithSameScheme(\Pinq\ITraversable $traversable)
    {
        return $traversable->groupJoin([])->on(function ($i) {
        })->to(function ($k) {
        });
    }