code: def testGradientsLoss(self):
      self._setUp_td_loss()
      gradient = tf.gradients(self._loss, self._state_values)[0]
      self.assertEqual(
          gradient.get_shape(), self._state_values.get_shape()
      )
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from absl.testing import parameterized
  import tensorflow.compat.v1
  import tree
  from trfl import value_ops
label_desc: Use image node_id 5 for calling the TDLambdaTest obj's underlying member method code with example usage: obj.testGradientsLoss() without return types