code: def test_ordered_enum(self):
      class Grade(py_utils.OrderedEnum):
          A = 5
          B = 4
          C = 3
          D = 2
          F = 1
  
      self.assertGreater(Grade.A, Grade.B)
      self.assertLessEqual(Grade.F, Grade.C)
      self.assertLess(Grade.D, Grade.A)
      self.assertGreaterEqual(Grade.B, Grade.B)
      self.assertEqual(Grade.B, Grade.B)
      self.assertNotEqual(Grade.C, Grade.D)
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import collections
  from absl.testing import parameterized
  import numpy
  import tensorflow
  from tensorflow_model_optimization.python.core.internal.tensor_encoding.utils import py_utils
label_desc: Use image node_id 1 for calling the OrderedEnumTest obj's underlying member method code with example usage: obj.test_ordered_enum() without return types