use pocketmine\network\mcpe\NetworkSession; class ClientToServerHandshakePacket extends DataPacket{ const NETWORK_ID = ProtocolInfo::CLIENT_TO_SERVER_HANDSHAKE_PACKET; public function canBeSentBeforeLogin() : bool{ return true; } public function decodePayload(){ //No payload } public function encodePayload(){ //No payload } public function handle(NetworkSession $session) : bool{ return $session->handleClientToServerHandshake($this); } }