code: def test_nested_if_temporarily_undefined_return_legal(self, c1, c2):
      self.assertFunctionMatchesEager(
          nested_if_temporarily_undefined_return, c1, c2
      )
  
imports: import itertools
  import re
  from absl.testing import parameterized
  import tensorflow
  from tensorflow.python.autograph.tests import reference_test_base
label_desc: Use image node_id 9 for calling the ReferenceTest obj's underlying member method code with example usage: obj.test_nested_if_temporarily_undefined_return_legal(c1, c2) without return types