code: def test_get_variable_ddi(self):
      with tf.Graph().as_default():
          x_t = tf.random_normal((5, 5))
          ddi = glow_ops.get_variable_ddi(
              "x", (5, 5), initial_value=x_t, init=True
          )
          with tf.Session() as session:
              diff = ddi - x_t
              self.assertTrue(np.allclose(session.run(diff), 0.0))
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import os
  import tempfile
  from absl.testing import parameterized
  import numpy
  from six.moves import range
  from six.moves import zip
  from tensor2tensor.models.research import glow
  from tensor2tensor.models.research import glow_ops
  from tensor2tensor.utils import contrib
  from tensor2tensor.utils import hparam
  import tensorflow.compat.v1
  from tensorflow.compat.v1 import estimator
label_desc: Use image node_id 2 for calling the GlowOpsTest obj's underlying member method code with example usage: obj.test_get_variable_ddi() without return types