[UCLASS](Programming/UnrealArchitecture/Reference/Classes#classdeclaration)(MinimalAPI) class UMovieSceneNiagaraSystemTrack : public [UMovieSceneNiagaraTrack](API\Plugins\Niagara\MovieScene\UMovieSceneNiagaraTrack), public [IMovieSceneTrackTemplateProducer](API\Runtime\MovieScene\Compilation\IMovieSceneTrackTemplateProducer)