original_string: public function handle(Request $request): Response
      {
          try {
              $matcher = $this->getUrlMatcher($request);
  
              $parameters = $matcher->match($request->getPathInfo());
  
              if (empty($parameters['_controller'])) {
                  throw new InvalidRouteException('Route requires a _controller callable');
              }
  
              if (!\is_callable($parameters['_controller'])) {
                  throw new InvalidRouteException('_controller must be a callable');
              }
  
              $callback = $parameters['_controller'];
  
              $result = call_user_func_array($callback, $this->getControllerParameters($request, $parameters));
  
              if (!$result instanceof Response) {
                  throw new InvalidResponseException('Response must be an instance of \Symfony\Component\HttpFoundation\Response');
              }
          } catch (\Exception $e) {
              $result = $this->handleException($request, $e);
          }
  
          return $result;
      }
code: public function handle(Request $request): Response
      {
          try {
              $matcher = $this->getUrlMatcher($request);
  
              $parameters = $matcher->match($request->getPathInfo());
  
              if (empty($parameters['_controller'])) {
                  throw new InvalidRouteException('Route requires a _controller callable');
              }
  
              if (!\is_callable($parameters['_controller'])) {
                  throw new InvalidRouteException('_controller must be a callable');
              }
  
              $callback = $parameters['_controller'];
  
              $result = call_user_func_array($callback, $this->getControllerParameters($request, $parameters));
  
              if (!$result instanceof Response) {
                  throw new InvalidResponseException('Response must be an instance of \Symfony\Component\HttpFoundation\Response');
              }
          } catch (\Exception $e) {
              $result = $this->handleException($request, $e);
          }
  
          return $result;
      }
code_tokens: public function handle ( Request $ request ) : Response { try { $ matcher = $ this -> getUrlMatcher ( $ request ) ; $ parameters = $ matcher -> match ( $ request -> getPathInfo ( ) ) ; if ( empty ( $ parameters [ '_controller' ] ) ) { throw new InvalidRouteException ( 'Route requires a _controller callable' ) ; } if ( ! \ is_callable ( $ parameters [ '_controller' ] ) ) { throw new InvalidRouteException ( '_controller must be a callable' ) ; } $ callback = $ parameters [ '_controller' ] ; $ result = call_user_func_array ( $ callback , $ this -> getControllerParameters ( $ request , $ parameters ) ) ; if ( ! $ result instanceof Response ) { throw new InvalidResponseException ( 'Response must be an instance of \Symfony\Component\HttpFoundation\Response' ) ; } } catch ( \ Exception $ e ) { $ result = $ this -> handleException ( $ request , $ e ) ; } return $ result ; }
docstring: Handles HTTP request and returns response.
  
  @param Request $request
  @return Response
docstring_tokens: Handles HTTP request and returns response .