void SetValue ( [PCGMetadataEntryKey](API\Plugins\PCG\Metadata\PCGMetadataEntryKey) ItemKey, const [FPCGMetadataAttributeBase](API\Plugins\PCG\Metadata\FPCGMetadataAttributeBase) * InAttribute, [PCGMetadataEntryKey](API\Plugins\PCG\Metadata\PCGMetadataEntryKey) InEntryKey )