class_docstr: Test functionality of SkorchDoctor using a simple model
class_docstr_tok: ["Test","functionality","of","SkorchDoctor","using","a","simple","model"]
code: def data(self, classifier_data):
      X, y = classifier_data
      # a small amount of data is enough
      return X[:50], y[:50]
  
imports: import itertools
  from unittest import mock
  import numpy
  import pytest
  import torch
  from torch import nn
label_desc: Use image node_id 5 for calling the TestSkorchDoctorSimple obj's underlying member method code with example usage: obj.data(classifier_data) and returns: X,  y