public function execute(CommandSender $sender, $alias, array $args)
 {
     if ($sender instanceof Player) {
         $packet = new SetHealthPacket();
         $packet->health = $sender->getHealth();
         $sender->dataPacket($packet);
         return true;
     }
     $sender->sendMessage("Please run this command in-game. If you want to know your device's health, don't ask me.");
     return false;
 }