code: def _mock_operation(self, task_count, succeeded_count, failed_count):
      operation = mock.MagicMock()
      operation.result.return_value = self._mock_execution(
          task_count, succeeded_count, failed_count
      )
      return operation
  
imports: from __future__ import annotations
  from unittest import mock
  import pytest
  from google.cloud.run_v2 import Job
  from airflow.exceptions import AirflowException, TaskDeferred
  from airflow.providers.google.cloud.operators.cloud_run import CloudRunCreateJobOperator, CloudRunDeleteJobOperator, CloudRunExecuteJobOperator, CloudRunListJobsOperator, CloudRunUpdateJobOperator
  from airflow.providers.google.cloud.triggers.cloud_run import RunJobStatus
label_desc: Use image node_id 15 for calling the TestCloudRunExecuteJobOperator obj's underlying member method code with example usage: obj._mock_operation(task_count, succeeded_count, failed_count) and returns: operation