static void ForEachActorDescInFolders ( [UWorld](API\Runtime\Engine\Engine\UWorld) & InWorld, const [TSet](API\Runtime\Core\Containers\TSet)< [FName](API\Runtime\Core\UObject\FName) > & InPaths, [TFunctionRef](API\Runtime\Core\GenericPlatform\TFunctionRef)< bool(const [FWorldPartitionActorDesc](API\Runtime\Engine\WorldPartition\FWorldPartitionActorDesc) *)> Operation, const [FFolder::FRootObject](API\Runtime\Engine\FFolder\FRootObject) & InFolderRootObject )