code: def setUpClass(cls):
      super().setUpClass()
  
      # change iris to a binary problem
      cls.x_train = cls.x_train_iris[0:35]
      cls.y_train = cls.y_train_iris[0:35, 1]
      cls.x_test = cls.x_train
      cls.y_test = cls.y_train
  
file_path: adversarial-robustness-toolbox/tests/attacks/test_hclu.py
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import logging
  import unittest
  import numpy
  import GPy
  from art.attacks.evasion.hclu import HighConfidenceLowUncertainty
  from art.estimators.classification.GPy import GPyGaussianProcessClassifier
  from tests.utils import TestBase
  from tests.attacks.utils import backend_test_classifier_type_check_fail
label_desc: Use image node_id 1 for calling the TestHCLU obj's underlying member method code with example usage: obj.setUpClass(cls) without return types