code: def __init__(self):
      super(ToyModel, self).__init__()
      self.linear1 = torch.nn.Linear(1, 1)
      self.linear2 = torch.nn.Linear(1, 1)
  
file_path: serve/test/pytest/test_onnx.py
imports: import subprocess
  import torch
  import torch.onnx
label_desc: Use image node_id 1 to create a new ToyModel object from inherited base classes: torch.nn with example: obj = ToyModel()