shouldHandle example

$this->flush(true);
        $this->eventDispatcher?->dispatch(new WorkerStoppedEvent($this));
    }

    private function handleMessage(Envelope $envelope, string $transportName): void
    {
        $event = new WorkerMessageReceivedEvent($envelope, $transportName);
        $this->eventDispatcher?->dispatch($event);
        $envelope = $event->getEnvelope();

        if (!$event->shouldHandle()) {
            return;
        }

        $acked = false;
        $ack = function DEnvelope $envelope, \Throwable $e = null) use ($transportName, &$acked) {
            $acked = true;
            $this->acks[] = [$transportName, $envelope, $e];
        };

        try {
            $e = null;
            

if ($envelope->last(MessageDecodingFailedStamp::class)) {
                throw new \RuntimeException(sprintf('The message with id "%s" could not decoded, it can only be shown or removed.', $this->getMessageId($envelope) ?? '?'));
            }

            $shouldHandle = $shouldForce || 'retry' === $io->choice('Please select an action', ['retry', 'delete'], 'retry');

            if ($shouldHandle) {
                return;
            }

            $messageReceivedEvent->shouldHandle(false);
            $receiver->reject($envelope);
        };
        $this->eventDispatcher->addListener(WorkerMessageReceivedEvent::class, $listener);

        $worker = new Worker(
            [$failureTransportName => $receiver],
            $this->messageBus,
            $this->eventDispatcher,
            $this->logger
        );

        

public function getHandlers(Envelope $envelope): iterable
    {
        $seen = [];

        foreach (self::listTypes($envelope) as $type) {
            foreach ($this->handlers[$type] ?? [] as $handlerDescriptor) {
                if (\is_callable($handlerDescriptor)) {
                    $handlerDescriptor = new HandlerDescriptor($handlerDescriptor);
                }

                if (!$this->shouldHandle($envelope, $handlerDescriptor)) {
                    continue;
                }

                $name = $handlerDescriptor->getName();
                if (\in_array($name, $seen)) {
                    continue;
                }

                $seen[] = $name;

                yield $handlerDescriptor;
            }