code: def test_fit(self, net_fit):
      # fitting does not raise anything
      pass
  
imports: from unittest.mock import Mock
  import numpy
  import pytest
  import torch
  from scipy.special import expit
  from sklearn.base import clone
  from torch import nn
  from skorch.tests.conftest import INFERENCE_METHODS
label_desc: Use image node_id 6 for calling the TestNeuralNetBinaryClassifier obj's underlying member method code with example usage: obj.test_fit(net_fit) without return types