<?phpnamespace App\Controller;use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;use Symfony\Component\HttpFoundation\Response;use Symfony\Component\Routing\Annotation\Route;class TreeviewController extends AbstractController{ #[Route('/treeview', name: 'app_treeview')] public function index(): Response { return $this->render('treeview/index.html.twig', [ 'controller_name' => 'TreeviewController', ]); }}