def METHOD_NAME(self):
    if not self._client_version_tuple:
        if not hasattr(self, "client_version"):
            setattr(self, "client_version", self.client.system.client_version())
        rtver = getattr(self, "client_version")
        self._client_version_tuple = tuple([int(i) for i in rtver.split(".")])
    return self._client_version_tuple