code: def setUpClass(cls):
      names = json.load(
          open(
              path.join(
                  path.dirname(path.abspath(__file__)),
                  "data",
                  "flag_names.json",
              )
          )
      )
      for name in names:
          if name in list(flags.FLAGS):
              delattr(flags.FLAGS, name)
      from aup.dlconvert import savedmodel_to_onnx
      from aup.dlconvert import to_onnx
      import importlib
  
      importlib.reload(to_onnx)
      cls.s2o = savedmodel_to_onnx
      return super().setUpClass()
  
file_path: auptimizer/tests/dlconvert/test_savedmodel_to_onnx.py
imports: import unittest
  from absl import flags
  from os import path, remove, environ
  import json
  import tensorflow
  from tensorflow import __version__
  import warnings
  from six import PY2
label_desc: Use image node_id 3 for calling the SavedModelToOnnxTestCase obj's underlying member method code with example usage: obj.setUpClass(cls) and returns: super