code: def test_Init(self) -> None:
      self.assertEqual(
          self.t.bounds, {"step_1": (0.0, 10.0), "step_2": (0.0, 20.0)}
      )
  
file_path: Ax/ax/modelbridge/transforms/tests/test_map_unit_x_transform.py
imports: from copy import deepcopy
  import numpy
  from ax.core.observation import Observation, ObservationData, ObservationFeatures
  from ax.core.parameter import ChoiceParameter, ParameterType, RangeParameter
  from ax.core.search_space import SearchSpace
  from ax.modelbridge.transforms.map_unit_x import MapUnitX
  from ax.utils.common.testutils import TestCase
label_desc: Use image node_id 2 for calling the MapUnitXTransformTest obj's underlying member method code with example usage: obj.test_Init() without return types