code: def setUp(self):
      master_seed(seed=42)
  
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import logging
  import unittest
  import numpy
  import tensorflow
  import torch.nn
  import torch.nn.functional
  import torch.optim
  from art.attacks.evasion.hop_skip_jump import HopSkipJump
  from art.estimators.classification.keras import KerasClassifier
  from art.estimators.classification.pytorch import PyTorchClassifier
  from art.estimators.classification.tensorflow import TensorFlowClassifier
  from art.metrics.metrics import adversarial_accuracy, empirical_robustness, clever_t, clever_u, clever, loss_sensitivity, wasserstein_distance
  from art.utils import load_mnist
  from tests.utils import master_seed
label_desc: Use image node_id 1 for calling the TestMetrics obj's underlying member method code with example usage: obj.setUp() without return types