+ Msp::Net::PacketReceiver<TrainControlPacket>,
+ Msp::Net::PacketReceiver<TrainAIControlPacket>,
+ Msp::Net::PacketReceiver<TrainStatusPacket>,
+ Msp::Net::PacketReceiver<RouteInfoPacket>,
+ Msp::Net::PacketReceiver<TrainRoutePacket>,
+ Msp::Net::PacketReceiver<ErrorPacket>