code: def test_ordering_rv_rv(self):
      # Check that random variables are copied correctly in dependency
      # structure.
      with self.test_session() as sess:
          ed.set_seed(21782)
          x = Normal(loc=0.0, scale=10.0)
          x_abs = tf.abs(x)
          y = Normal(loc=x_abs, scale=1e-8)
          y_new = ed.copy(y)
          x_new = ed.copy(x)
          x_new_val, y_new_val = sess.run([x_new, y_new])
          self.assertAllClose(abs(x_new_val), y_new_val)
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import edward
  import numpy
  import tensorflow
  from edward.models import Bernoulli, Categorical, Mixture, Normal
label_desc: Use image node_id 22 for calling the test_copy_class obj's underlying member method code with example usage: obj.test_ordering_rv_rv() without return types