code: def testPatcher(self, use_pipeline_proto, mock_run):
      patcher = _DummyDagRunnerPatcher(self)
      pipeline = tfx_pipeline.Pipeline(_PIPELINE_NAME, "dummy_root")
      if use_pipeline_proto:
          pipeline = compiler.Compiler().compile(pipeline)
      runner = _DummyDagRunner()
  
      with patcher.patch() as context:
          self.assertNotIn("foo", context)
          self.assertFalse(patcher.run_called)
          runner.run(pipeline)
          print(context)
          self.assertEqual(context["foo"], 24)
          self.assertTrue(patcher.run_called)
          mock_run.assert_called_once()
  
imports: from unittest import mock
  from absl.testing import parameterized
  import tensorflow
  from tfx.dsl.compiler import compiler
  from tfx.orchestration import pipeline
  from tfx.orchestration import tfx_runner
  from tfx.tools.cli.handler import dag_runner_patcher
label_desc: Use image node_id 1 for calling the DagRunnerPatcherTest obj's underlying member method code with example usage: obj.testPatcher(use_pipeline_proto, mock_run) without return types