[UCLASS](Programming/UnrealArchitecture/Reference/Classes#classdeclaration)(BlueprintType, Meta=(LoadBehavior="LazyOnDemand"), MinimalAPI) class UNiagaraSystem : public [UFXSystemAsset](API\Runtime\Engine\Particles\UFXSystemAsset), public [INiagaraParameterDefinitionsSubscriber](API\Plugins\Niagara\INiagaraParameterDefinitionsSubs-)