code: def tearDown(self):
      flags.FLAGS.unparse_flags()  # https://github.com/abseil/abseil-py/issues/36
      if path.isfile(self.output):
          remove(self.output)
  
file_path: auptimizer/tests/dlconvert/test_pytorch_to_onnx.py
imports: import unittest
  from absl import flags
  from os import path, remove, environ
  import json
  from six import PY2
label_desc: Use image node_id 2 for calling the PytorchToONNXTestCase obj's underlying member method code with example usage: obj.tearDown() without return types