/**
  * Responds to server ping events.
  *
  * @param \Phergie\Irc\Event\EventInterface $event Ping event to respond to 
  * @param \Phergie\Irc\Bot\React\EventQueueInterface $queue
  */
 public function pong(EventInterface $event, EventQueueInterface $queue)
 {
     $params = $event->getParams();
     $queue->ircPong($params['server1']);
 }