code: def setUp(self):
      super().setUp()
      self._testdata_path = os.path.join(
          os.path.dirname(os.path.dirname(os.path.dirname(__file__))),
          "components/testdata",
      )
  
imports: import os
  import types
  import apache_beam
  import tensorflow
  from tensorflow import estimator
  import tensorflow_model_analysis
  import tensorflow_transform
  from tensorflow_transform import beam
  from tensorflow_transform.tf_metadata import dataset_metadata
  from tensorflow_transform.tf_metadata import schema_utils
  from tfx.components.trainer import executor
  from tfx.components.trainer.fn_args_utils import DataAccessor
  from tfx.components.util import tfxio_utils
  from tfx.dsl.io import fileio
  from tfx.examples.chicago_taxi_pipeline import taxi_utils
  from tfx.types import standard_artifacts
  from tfx.utils import io_utils
  from tfx.utils import path_utils
  from tfx_bsl.tfxio import tf_example_record
  from tensorflow_metadata.proto.v0 import schema_pb2
label_desc: Use image node_id 1 for calling the TaxiUtilsTest obj's underlying member method code with example usage: obj.setUp() without return types