@api_version.setter<EOL><INDENT>def api_version(self, api_version):<DEDENT>
self._api_version = api_version<EOL>
Sets the api_version of this V1alpha1Subject.
APIVersion holds the API group and version of the referenced subject. Defaults to \"v1\" for ServiceAccount subjects. Defaults to \"rbac.authorization.k8s.io/v1alpha1\" for User and Group subjects.

:param api_version: The api_version of this V1alpha1Subject.
:type: str