code: def setUp(self):
      super().setUp()
      self.base_test_dir = os.path.join(
          os.environ.get(
              "TEST_UNDECLARED_OUTPUTS_DIR", self.get_temp_dir()
          ),
          self._testMethodName,
      )
      self._cache_dir = os.path.join(self.base_test_dir, "cache")
      self._running_index = 0
  
      self._context = tft_beam.Context(temp_dir=self.get_temp_dir())
      self._context.__enter__()
  
imports: import functools
  import os
  import struct
  from typing import Callable, Mapping, List
  import uuid
  import apache_beam
  from apache_beam.testing import util
  import numpy
  import tensorflow
  import tensorflow_transform
  from tensorflow_transform import analyzer_nodes
  from tensorflow_transform import common_types
  from tensorflow_transform import impl_helper
  from tensorflow_transform import nodes
  import tensorflow_transform.beam
  from tensorflow_transform.beam import analysis_graph_builder
  from tensorflow_transform.beam import analyzer_cache
  from tensorflow_transform.beam import tft_unit
  from tensorflow_transform.tf_metadata import dataset_metadata
  from tfx_bsl.types import tfx_namedtuple
label_desc: Use image node_id 1 for calling the CachedImplTest obj's underlying member method code with example usage: obj.setUp() without return types