code: def testPatcher(self, mock_run):
      patcher = airflow_dag_runner_patcher.AirflowDagRunnerPatcher()
      with patcher.patch() as context:
          airflow_dag_runner.AirflowDagRunner().run(
              tfx_pipeline.Pipeline(_PIPELINE_NAME, "")
          )
          mock_run.assert_called_once()
          self.assertEqual(
              context[patcher.PIPELINE_NAME], _PIPELINE_NAME
          )
  
imports: from unittest import mock
  import tensorflow
  from tfx.orchestration import pipeline
  from tfx.orchestration.airflow import airflow_dag_runner
  from tfx.tools.cli.handler import airflow_dag_runner_patcher
label_desc: Use image node_id 1 for calling the AirflowDagRunnerPatcherTest obj's underlying member method code with example usage: obj.testPatcher(mock_run) without return types