def process_update_external_policy(self, session, data, result):
        self._call_on_ext_drivers("process_update_external_policy",
                                  session, data, result)
Call all extension drivers during EP update.
dataset/ETHPy150Open openstack/group-based-policy/gbpservice/neutron/services/grouppolicy/extension_manager.py/ExtensionManager.process_update_external_policy