code: def _convert_model(model, input):
      return PytorchGraphModelSpace.from_model(model)
  
file_path: nni/test/algo/nas/graph_converter/convert_mixin.py
imports: import unittest
  import torch
  from nni.nas.space.pytorch.graph import PytorchGraphModelSpace
  from nni.nas.utils import original_state_dict_hooks
label_desc: Use image node_id 4 for calling the ConvertMixin obj's underlying member method code with example usage: obj._convert_model(model, input) and returns: PytorchGraphModelSpace