pocketmine\network\protocol\DataPacket::encode PHP Method

    public abstract function encode();

 public function putPacket(Player $player, DataPacket $packet, $needACK = false, $immediate = true)
 {
     $packet->encode();
     $pk = new RedirectPacket();
     $pk->uuid = $player->getUniqueId();
     $pk->direct = $immediate;
     $pk->mcpeBuffer = $packet->buffer;
     $this->synapseInterface->putPacket($pk);
 }