FDuplicateDataWriter ( [FUObjectAnnotationSparse](API\Runtime\CoreUObject\UObject\FUObjectAnnotationSparse)< [FDuplicatedObject](API\Runtime\CoreUObject\Serialization\FDuplicatedObject), false > & InDuplicatedObjects, [FLargeMemoryData](API\Runtime\Core\Serialization\FLargeMemoryData) & InObjectData, [UObject](API\Runtime\CoreUObject\UObject\UObject) * SourceObject, [UObject](API\Runtime\CoreUObject\UObject\UObject) * DestObject, EObjectFlags InFlagMask, EObjectFlags InApplyMask, EInternalObjectFlags InInternalFlagMask, EInternalObjectFlags InApplyInternalFlags, [FObjectInstancingGraph](API\Runtime\CoreUObject\UObject\FObjectInstancingGraph) * InInstanceGraph, uint32 InPortFlags, bool InAssignExternalPackages )