code: def setUp(self):
      super().setUp()
      # Batch size = 2, list_size = 3.
      self._inputs = tf.constant(
          [
              [[2.0, 1.0], [2.0, 0.0], [2.0, -1.0]],
              [[1.0, 0.0], [1.0, 1.0], [1.0, 0.0]],
          ],
          dtype=tf.float32,
      )
      self._mask = tf.constant(
          [[True, True, False], [True, False, False]], dtype=tf.bool
      )
      self._num_heads = 2
      self._head_size = 2
      self._num_layers = 2
      self._dropout = 0.5
  
imports: import tensorflow
  from tensorflow_ranking.python.keras import layers
label_desc: Use image node_id 1 for calling the DocumentInteractionAttentionLayerTest obj's underlying member method code with example usage: obj.setUp() without return types