code: def setUp(self) -> None:
      super().setUp()
      # expected parameters after transform
      self.expected_transformed_params = {
          "x": 2.2,
          "a": 2,
          # float choice originally; transformed to int index.
          "b": 1,
          # float choice originally; transformed to int index.
          "c": 0,
          "d": "r",
      }
  
imports: from copy import deepcopy
  from typing import List, Sized
  import numpy
  from ax.core.observation import ObservationFeatures
  from ax.core.parameter import ChoiceParameter, ParameterType, RangeParameter
  from ax.core.parameter_constraint import ParameterConstraint
  from ax.core.search_space import RobustSearchSpace, SearchSpace
  from ax.modelbridge.transforms.choice_encode import ChoiceEncode, OrderedChoiceEncode
  from ax.utils.common.testutils import TestCase
  from ax.utils.common.typeutils import checked_cast
  from ax.utils.testing.core_stubs import get_robust_search_space
label_desc: Use image node_id 1 for calling the OrderedChoiceEncodeTransformTest obj's underlying member method code with example usage: obj.setUp() without return types