code: def _delete_operation_mock(self):
      operation = mock.MagicMock()
      operation.result.return_value = mock.MagicMock()
      return operation
  
file_path: airflow/tests/providers/google/cloud/operators/test_cloud_batch.py
imports: from __future__ import annotations
  from unittest import mock
  import pytest
  from google.cloud import batch_v1
  from airflow.exceptions import AirflowException, TaskDeferred
  from airflow.providers.google.cloud.operators.cloud_batch import CloudBatchDeleteJobOperator, CloudBatchListJobsOperator, CloudBatchListTasksOperator, CloudBatchSubmitJobOperator
label_desc: Use image node_id 2 for calling the TestCloudBatchDeleteJobOperator obj's underlying member method code with example usage: obj._delete_operation_mock() and returns: operation