code: def test_execute(self, mock_hook) -> None:
      task = DataprocMetastoreDeleteServiceOperator(
          task_id=TASK_ID,
          region=GCP_LOCATION,
          project_id=GCP_PROJECT_ID,
          service_id=TEST_SERVICE_ID,
          retry=TEST_RETRY,
          timeout=TEST_TIMEOUT,
          metadata=TEST_METADATA,
          gcp_conn_id=GCP_CONN_ID,
          impersonation_chain=IMPERSONATION_CHAIN,
      )
      mock_hook.return_value.wait_for_operation.return_value = None
      task.execute(context=mock.MagicMock())
      mock_hook.assert_called_once_with(
          gcp_conn_id=GCP_CONN_ID,
          impersonation_chain=IMPERSONATION_CHAIN,
      )
      mock_hook.return_value.delete_service.assert_called_once_with(
          region=GCP_LOCATION,
          project_id=GCP_PROJECT_ID,
          service_id=TEST_SERVICE_ID,
          retry=TEST_RETRY,
          timeout=TEST_TIMEOUT,
          metadata=TEST_METADATA,
      )
  
imports: from __future__ import annotations
  from typing import TYPE_CHECKING
  from unittest import mock
  from google.api_core.retry import Retry
  from google.protobuf.field_mask_pb2 import FieldMask
  from airflow.providers.google.cloud.operators.dataproc_metastore import DataprocMetastoreCreateBackupOperator, DataprocMetastoreCreateMetadataImportOperator, DataprocMetastoreCreateServiceOperator, DataprocMetastoreDeleteBackupOperator, DataprocMetastoreDeleteServiceOperator, DataprocMetastoreExportMetadataOperator, DataprocMetastoreGetServiceOperator, DataprocMetastoreListBackupsOperator, DataprocMetastoreRestoreServiceOperator, DataprocMetastoreUpdateServiceOperator
label_desc: Use image node_id 1 for calling the TestDataprocMetastoreDeleteServiceOperator obj's underlying member method code with example usage: obj.test_execute(mock_hook) without return types