code: public function handle($message, callable $next)
      {
          $name = $this->messageNameResolver->resolve($message);
          if (in_array($name, $this->names)) {
              $this->publisher->publish($message);
          }
  
          $next($message);
      }
docs: Handle a message by publishing it to a queue (always), then calling the next middleware
  
  {@inheritdoc}