code: def test_square_add_simplify(self):
      expr = ("#CPow2.0000e+00", ("#Add", (1.0,), ("#Neg", (2.0,))))
      did_something, new_expr = square_add_simplify(expr)
      self.assertTrue(did_something)
      self.assertEqual(
          new_expr,
          (
              "#Add",
              ("#CPow2.0000e+00", (1.0,)),
              ("#Mul", (2.0,), (1.0,), ("#Neg", (2.0,))),
              ("#CPow2.0000e+00", ("#Neg", (2.0,))),
          ),
      )
      did_something, new_expr = square_add_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 16 for calling the test_simplify_class obj's underlying member method code with example usage: obj.test_square_add_simplify() without return types