@preferred_version.setter<EOL><INDENT>def preferred_version(self, preferred_version):<DEDENT>
self._preferred_version = preferred_version<EOL>
Sets the preferred_version of this V1APIGroup.
preferredVersion is the version preferred by the API server, which probably is the storage version.

:param preferred_version: The preferred_version of this V1APIGroup.
:type: V1GroupVersionForDiscovery