import tensorflow as tf

          'SpectrumAugmenter',
          'StackingOverTime',
          'TestInputGenerator',
      ])
      self.assertEqual(expected_layers, l_names)

  def testParamValueSumSquared(self):
    with self.session(use_gpu=False, graph=tf.Graph()):
      p = self._testParams()
      mdl = p.Instantiate()
      mdl.FPropDefaultTheta()
      all_vars = tf.trainable_variables()
      py_utils.SumSquared(all_vars)

