Register Namespace python documentation

Hello,
is there a Python documentation to create/register a namespace?
The best I can find is: temporalio.api.workflowservice.v1

and it says “undocumented”.

I’m attempting to register a ns, if one doesn’t exist, prior to an app kicking in.
Thank you
AZ

There are similar requests on the forum.
I found @arrowcircle post helpful: Create or Register namespace with python-sdk and code
It would be helpful to have some sort of documentation for ServiceClient class and maybe a few examples.
Thank you