Chest open or close

How to find out if there is an animation for opening a chest. If there is no animation, then create a discovery

PHP:

$packet = new BlockEventPacket();
          $packet->x = $event->getBlock()->getX();
          $packet->y = $event->getBlock()->getY();
          $packet->z = $event->getBlock()->getZ();
          $packet->eventType = 1;
          $packet->eventData = 2;
          $player->dataPacket($packet);

 

How to find out if a chest is open?