Is there a way to force a mesh to be exported as a SubD mesh when exporting through an Alembic ROP in SOP?

I have this Alembic file that contains meshes with intrinsic:abctypename = SubD while in Packed Alembics primitive. Once I unpack it, it becomes Polygons and when I try to re-export it to a new Alembic file using the Alembic ROP and re-import it, it always inherits the intrinsic:abctypename = PolyMesh. I can't seem to find it, but I'm guessing there must be a way to force the Alembic ROP to export it as a SubD mesh !?

Never mind. It was right under my noise with the parameter subdivision group.