How to set UID and GID for the container when Python SDK is used to spin up the container?

How to set UID and GID for the container using python sdk?
As the documentation you've linked says, pass in user and group_add to run():
client.containers.run('alpine', 'echo hello world', user='foo', group_add=[123])

Both accept both IDs and names, but group_add needs to be a list.
