template<typename ModelDef> void RegisterInstance ( [FNetworkPredictionID](API\Plugins\NetworkPrediction\FNetworkPredictionID) ID, [TInstanceData](API\Plugins\NetworkPrediction\Services\TInstanceData)< ModelDef > & InstanceData, [ENetworkPredictionService](API\Plugins\NetworkPrediction\Services\ENetworkPredictionService) ServiceMask )