code: def test_serialization(self):
      # Check save and restore config.
      layer = layers.Bilinear(10, 2)
      serialized = tf.keras.layers.serialize(layer)
      loaded = tf.keras.layers.deserialize(serialized)
      self.assertAllEqual(loaded.get_config(), layer.get_config())
  
imports: import tensorflow
  from tensorflow_ranking.python.keras import layers
label_desc: Use image node_id 1 for calling the BilinearTest obj's underlying member method code with example usage: obj.test_serialization() without return types