FailedMessageProcessingMiddleware example

'alias' => 'handler_that_works1',
                ]),
                new HandlerDescriptor($transport2HandlerThatWorks, [
                    'from_transport' => 'transport2',
                    'alias' => 'handler_that_works2',
                ]),
            ],
        ]);

        $dispatcher = new EventDispatcher();
        $bus = new MessageBus([
            new FailedMessageProcessingMiddleware(),
            new SendMessageMiddleware($senderLocator),
            new HandleMessageMiddleware($handlerLocator),
        ]);
        $dispatcher->addSubscriber(new AddErrorDetailsStampListener());
        $dispatcher->addSubscriber(new SendFailedMessageForRetryListener($locator, $retryStrategyLocator));

        $dispatcher->addSubscriber(new SendFailedMessageToFailureTransportListener($sendersLocatorFailureTransport));
        $dispatcher->addSubscriber(new StopWorkerOnMessageLimitListener(1));

        $runWorker = function Dstring $transportName) use ($transports, $bus, $dispatcher): ?\Throwable {
            $throwable = null;