code: def test_execute(self, mock_hook):
      operator = StackdriverDisableNotificationChannelsOperator(
          task_id=TEST_TASK_ID, filter_=TEST_FILTER
      )
      operator.execute(context=mock.MagicMock())
      mock_hook.return_value.disable_notification_channels.assert_called_once_with(
          project_id=None,
          filter_=TEST_FILTER,
          retry=DEFAULT,
          timeout=None,
          metadata=(),
      )
  
imports: from __future__ import annotations
  import json
  from unittest import mock
  from google.api_core.gapic_v1.method import DEFAULT
  from google.cloud.monitoring_v3 import AlertPolicy, NotificationChannel
  from airflow.providers.google.cloud.operators.stackdriver import StackdriverDeleteAlertOperator, StackdriverDeleteNotificationChannelOperator, StackdriverDisableAlertPoliciesOperator, StackdriverDisableNotificationChannelsOperator, StackdriverEnableAlertPoliciesOperator, StackdriverEnableNotificationChannelsOperator, StackdriverListAlertPoliciesOperator, StackdriverListNotificationChannelsOperator, StackdriverUpsertAlertOperator, StackdriverUpsertNotificationChannelOperator
label_desc: Use image node_id 1 for calling the TestStackdriverDisableNotificationChannelsOperator obj's underlying member method code with example usage: obj.test_execute(mock_hook) without return types