code: def main():
      args = parser.parse_args()
      onnx_model = onnx.load(args.model)
      (
          caffe2_init,
          caffe2_predict,
      ) = Caffe2Backend.onnx_graph_to_caffe2_net(onnx_model)
      caffe2_init_str = caffe2_init.SerializeToString()
      with open(args.c2_prefix + ".init.pb", "wb") as f:
          f.write(caffe2_init_str)
      caffe2_predict_str = caffe2_predict.SerializeToString()
      with open(args.c2_prefix + ".predict.pb", "wb") as f:
          f.write(caffe2_predict_str)
  
label_desc: Use image node_id 1 for calling a global function with example usage: main() without return types