code: def assertDirectoryEqual(self, dir1: str, dir2: str):
      self.assertTrue(executor_verifier_utils.compare_dirs(dir1, dir2))
  
imports: import os
  from absl import logging
  import tensorflow
  from tfx.dsl.compiler import compiler
  from tfx.dsl.io import fileio
  from tfx.examples.imdb import imdb_pipeline_native_keras
  from tfx.experimental.pipeline_testing import executor_verifier_utils
  from tfx.experimental.pipeline_testing import pipeline_mock
  from tfx.experimental.pipeline_testing import pipeline_recorder_utils
  from tfx.orchestration import metadata
  from tfx.orchestration.beam.beam_dag_runner import BeamDagRunner
  from ml_metadata.proto import metadata_store_pb2
label_desc: Use image node_id 9 for calling the ImdbStubPipelineRegressionEndToEndTest obj's underlying member method code with example usage: obj.assertDirectoryEqual(dir1, dir2) without return types