class_docstr: A unittest class for testing the input filtering using
  PGD tests.
class_docstr_tok: ["A","unittest","class","for","testing","the","input","filtering","using","PGD","tests","."]
code: def setUpClass(cls):
      # MNIST
      (x_train, y_train), (x_test, y_test), _, _ = load_dataset("mnist")
      x_train = list(x_train[:NB_TRAIN])
      y_train = list(y_train[:NB_TRAIN])
      x_test = list(x_test[:NB_TEST])
      y_test = list(y_test[:NB_TEST])
      cls.mnist = (x_train, y_train), (x_test, y_test)
  
      # Iris
      (x_train, y_train), (x_test, y_test), _, _ = load_dataset("iris")
      x_train = pd.DataFrame(x_train)
      y_train = pd.DataFrame(y_train)
      x_test = pd.DataFrame(x_test)
      y_test = pd.DataFrame(y_test)
      cls.iris = (x_train, y_train), (x_test, y_test)
  
file_path: adversarial-robustness-toolbox/tests/attacks/test_input_filter.py
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import logging
  import unittest
  import pandas
  from art.utils import load_dataset
  from tests.utils import master_seed
label_desc: Use image node_id 1 for calling the TestInputFilter obj's underlying member method code with example usage: obj.setUpClass(cls) without return types