code: def test_conversion(self):
      command = self.default.copy()
      command.extend(
          [
              "--net=%s"
              % path.join(
                  "tests", "dlconvert", "data", "pytorch_model.py"
              ),
              "--net_name=Net",
              "--input_shape=1,3,224,224",
          ]
      )
      flags.FLAGS(command)
      self.p2o._main(None)
  
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 1 for calling the PytorchToONNXTestCase obj's underlying member method code with example usage: obj.test_conversion() without return types