How to set Id of a face in a Brep in Grasshopper?

Noob here, trying to figure out a very specific thing…
I want to be able to set the Id of a BrepFace, which it appears you can do using the BrepFace.Id propety (see here)

It looks like I need a Guid. I used this code to generate one:
import uuid

my_uuid = uuid.uuid4()

However, when I try and use this with the BrepFace.Id property it doesn’t work. How should I go about this?


brep face (5.5 KB)

Thanks @maje90 , will take a look!