code: def setUp(self):
      super(NetworkUtilsTest, self).setUp()
      self._tensors = [
          tf.constant(0, shape=(5, 4, 3, 2, 1)),
          tf.SparseTensor(
              indices=tf.zeros((0, 5), dtype=tf.int64),
              values=tf.zeros((0,), dtype=tf.float32),
              dense_shape=tf.constant([5, 4, 3, 2, 1], dtype=tf.int64),
          ),
      ]
  
file_path: agents/tf_agents/networks/utils_test.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import tensorflow
  from tf_agents.keras_layers import permanent_variable_rate_dropout
  from tf_agents.networks import utils
label_desc: Use image node_id 1 for calling the NetworkUtilsTest obj's underlying member method code with example usage: obj.setUp() without return types