[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="World utils") static void StreamInRequiredLevels ( [UWorld](API\Runtime\Engine\Engine\UWorld) * World, const [TSet](API\Runtime\Core\Containers\TSet)< [FString](API\Runtime\Core\Containers\FString) > & LevelsToIgnore )