void GetFilteredChildrenOfTypes ( [TArray](API\Runtime\Core\Containers\TArray)< [UNiagaraStackEntry](API\Plugins\NiagaraEditor\ViewModels\Stack\UNiagaraStackEntry) * > & OutFilteredChildren, const [TSet](API\Runtime\Core\Containers\TSet)< [UClass](API\Runtime\CoreUObject\UObject\UClass) * > & AllowedClasses ) const