code: def test_load_model(self):
      self.m.load_model()
      assert self.m.model is not None
  
file_path: DiCE/tests/test_model_interface/test_pytorch_model.py
imports: import pytest
  import dice_ml
  from dice_ml.utils import helpers
  from dice_ml.utils.helpers import DataTransfomer
label_desc: Use image node_id 2 for calling the TestPyTorchModelMethods obj's underlying member method code with example usage: obj.test_load_model() without return types