code: def test_log_cpow_simplify(self):
      expr = ("#Log", ("#CPow2.3000e+01", ("#x",)))
      did_something, new_expr = log_pow_simplify(expr)
      self.assertTrue(did_something)
      self.assertEqual(
          new_expr, ("#Mul", (2.3000e01,), ("#Log", ("#x",)))
      )
      did_something, new_expr = log_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 5 for calling the test_simplify_class obj's underlying member method code with example usage: obj.test_log_cpow_simplify() without return types