def node_group_update(self, context, node_group, values):
        values = copy.deepcopy(values)
        self.db.node_group_update(context, node_group, values)
Releases a savepoint. Does nothing if savepoints are not supported.
dataset/ETHPy150Open openstack/sahara/sahara/conductor/manager.py/ConductorManager.node_group_update--crossover with--dataset/ETHPy150Open django/django/django/db/backends/base/base.py/BaseDatabaseWrapper.savepoint_commit