code: def tearDown(self):
      super(TFRankingCannedGAMTest, self).tearDown()
      if self._base_model_dir:
          tf.io.gfile.rmtree(self._base_model_dir)
      self._base_model_dir = None
  
file_path: ranking/tensorflow_ranking/examples/tf_ranking_canned_gam_test.py
imports: import os
  from absl import flags
  from absl.testing import flagsaver
  from absl.testing import parameterized
  import tensorflow
  from google.protobuf import text_format
  from tensorflow_ranking.examples import tf_ranking_canned_gam
  from tensorflow_serving.apis import input_pb2
label_desc: Use image node_id 2 for calling the TFRankingCannedGAMTest obj's underlying member method code with example usage: obj.tearDown() without return types