USD Attribute that can be read as a tag

I’m generating a .usda in Maya with Python. I’m opening various payloads in UE’s USD Stage manager, their xformOp attr can converted to a UE Transform matrix just fine, I’m just wondering is their a USD attr that can be read as a tag?

It would be great if i could add a primvar that UE understands as a tag, or an existing attr

thanks!

I’ve looked through the USDStageImportOptions + context CPP files, can’t find much.

Perhaps the unreal.UsdStageEditorLibrary module could help?