@classmethod
    def __make_interface_name(cls, name, vlan):
        if name and vlan:
            return '.'.join([name, str(vlan)])
        return name
Return group identifiers of user with id :userid:
dataset/ETHPy150Open openstack/fuel-web/nailgun/nailgun/orchestrator/nova_serializers.py/NovaNetworkDeploymentSerializer.__make_interface_name--crossover with--dataset/ETHPy150Open ramses-tech/nefertari/nefertari/authentication/models.py/AuthModelMethodsMixin.get_groups_by_userid