code: def test_rand_histogram_shiftd(
      self, input_param, input_data, expected_val
  ):
      g = RandHistogramShiftd(**input_param)
      g.set_random_state(123)
      res = g(input_data)
      for key in ("img",):
          result = res[key]
          expected = (
              expected_val[key]
              if isinstance(expected_val, dict)
              else expected_val
          )
          assert_allclose(
              result, expected, rtol=1e-4, atol=1e-4, type_test="tensor"
          )
  
file_path: MONAI/tests/test_rand_histogram_shiftd.py
imports: from __future__ import annotations
  import unittest
  import numpy
  from parameterized import parameterized
  from monai.transforms.intensity.dictionary import RandHistogramShiftd
  from tests.utils import TEST_NDARRAYS, assert_allclose
label_desc: Use image node_id 1 for calling the TestRandHistogramShiftD obj's underlying member method code with example usage: obj.test_rand_histogram_shiftd(input_param, input_data, expected_val) without return types