code: def setUp(self):
      super().setUp()
      self.strategy = tf.distribute.get_strategy()
      self.using_tpu = False
  
file_path: privacy/tensorflow_privacy/privacy/fast_gradient_clipping/registry_functions/layer_normalization_test.py
imports: from absl.testing import parameterized
  import numpy
  import tensorflow
  from tensorflow_privacy.privacy.fast_gradient_clipping import common_test_utils
  from tensorflow_privacy.privacy.fast_gradient_clipping import layer_registry
  from tensorflow_privacy.privacy.fast_gradient_clipping.registry_functions import dense
  from tensorflow_privacy.privacy.fast_gradient_clipping.registry_functions import layer_normalization
label_desc: Use image node_id 1 for calling the GradNormTest obj's underlying member method code with example usage: obj.setUp() without return types