code: def test_pow_simplify_and_power_op_simplify(self):
      expr = ("#Square", ("#Reciprocal", ("#Sqrt", ("#x",))))
      did_something, new_expr = power_op_simplify(expr)
      self.assertTrue(did_something)
      self.assertEqual(
          new_expr,
          (
              "#CPow2.0000e+00",
              ("#CPow-1.0000e+00", ("#CPow5.0000e-01", ("#x",))),
          ),
      )
      did_something, new_expr = power_op_simplify(new_expr)
      self.assertFalse(did_something)
  
      did_something, new_expr = pow_simplify(new_expr)
      self.assertTrue(did_something)
      self.assertEqual(new_expr, ("#CPow-1.0000e+00", ("#x",)))
      did_something, new_expr = pow_simplify(new_expr)
      self.assertFalse(did_something)
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import edward
  import numpy
  import tensorflow
  from edward.inferences.conjugacy.simplify import *
  from edward.inferences.conjugacy.simplify import _mul_n
label_desc: Use image node_id 4 for calling the test_simplify_class obj's underlying member method code with example usage: obj.test_pow_simplify_and_power_op_simplify() without return types