def METHOD_NAME():
  """Functional Model that adds its inputs and then adds a bias."""
  input_1 = keras.Input(shape=(1,))
  input_2 = keras.Input(shape=(1,))
  input_3 = keras.Input(shape=(1,))
  added = keras.layers.Add()([input_1, input_2, input_3])
  output = Bias()(added)
  return keras.Model([input_1, input_2, input_3], output)