code: def net_cls(self):
      from skorch import NeuralNetRegressor
  
      return NeuralNetRegressor
  
imports: from functools import partial
  import numpy
  import pytest
  from sklearn.base import clone
  from skorch.tests.conftest import INFERENCE_METHODS
label_desc: Use image node_id 4 for calling the TestNeuralNetRegressor obj's underlying member method code with example usage: obj.net_cls() and returns: NeuralNetRegressor