code: def testUnwrapReturnsListOfUniqueTFDecorators(self):
      decorators, _ = tf_decorator.unwrap(test_decorated_function)
      self.assertEqual(3, len(decorators))
      self.assertTrue(
          isinstance(decorators[0], tf_decorator.TFDecorator)
      )
      self.assertTrue(
          isinstance(decorators[1], tf_decorator.TFDecorator)
      )
      self.assertTrue(
          isinstance(decorators[2], tf_decorator.TFDecorator)
      )
      self.assertIsNot(decorators[0], decorators[1])
      self.assertIsNot(decorators[1], decorators[2])
      self.assertIsNot(decorators[2], decorators[0])
  
imports: import functools
  import inspect
  from tensorflow.python.platform import test
  from tensorflow.python.platform import tf_logging
  from tensorflow.python.util import tf_decorator
  from tensorflow.python.util import tf_inspect
label_desc: Use image node_id 4 for calling the TfDecoratorUnwrapTest obj's underlying member method code with example usage: obj.testUnwrapReturnsListOfUniqueTFDecorators() without return types