code: def test_for_defines_var_illegal_cases(self, l):
      self.skipTest("TODO(mdanatg): check")
      l = tf.constant(l)
      with self.assertRaisesRegex(ValueError, '"x" must be defined'):
          tf.function(for_defines_var)(l)
  
imports: import itertools
  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 LoopScopingTest obj's underlying member method code with example usage: obj.test_for_defines_var_illegal_cases(l) without return types