Reload the metadata for this cluster

def reload(self):
        """Reload the metadata for this cluster"""

        app_profile_pb = self.instance_admin_client.get_app_profile(self.name)

        # NOTE: _update_from_pb does not check that the project and
        #       app_profile ID on the response match the request.
        self._update_from_pb(app_profile_pb)