Create a custom group in Viya 4.x using REST API ?

[MAGDN]

I wonder if it's is possible to create a custom group in Viya 4.x using a REST api in code ?

I'am aware this is possible using the CLI

Solved: How to extract all groups using the Viya REST API? - SAS Support Communities

And since the CLI is using REST API's this must be possible ?

[MAGDN]

I see there's also a python pyviyatools program https://github.com/sassoftware/pyviyatools