@api_group.setter<EOL><INDENT>def api_group(self, api_group):<DEDENT>
self._api_group = api_group<EOL>
Sets the api_group of this V1beta1Subject.
APIGroup holds the API group of the referenced subject. Defaults to \"\" for ServiceAccount subjects. Defaults to \"rbac.authorization.k8s.io\" for User and Group subjects.

:param api_group: The api_group of this V1beta1Subject.
:type: str