how to set repository permission for group via Bitbucket API v2

[Cees-Willem Hofstede]

I'd like to give a certain user group write permission to a repository. I can not find in the API v2 docs how to do so. I can find it in the v1 docs, but v1 is deprecated.

[Morten Stensgaard]

Not available on 2.0(yet): 

Feature request:

https://bitbucket.org/site/master/issues/15196/removal-of-10-api?_ga=2.127925133.1250084880.1546855295-1988248957.1502446456