code: def test_actual_results_dtw_sakoechiba(params, res_desired):
      """Test that the actual results are the expected ones."""
      (
          dtw_actual,
          cost_mat_actual,
          acc_cost_mat_actual,
          path_actual,
      ) = _dtw_sakoechiba(x, y, **params_return, **params)
      np.testing.assert_allclose(
          cost_mat_actual, res_desired["cost_mat"]
      )
      np.testing.assert_allclose(dtw_actual, res_desired["dtw"])
      np.testing.assert_allclose(path_actual, res_desired["path"])
      np.testing.assert_allclose(
          acc_cost_mat_actual, res_desired["acc_cost_mat"]
      )
  
imports: import numpy
  import pytest
  import re
  from math import sqrt
  from numba import njit
  from pyts.metrics.dtw import _square, _absolute, _check_input_dtw, _blurred_path_region, _return_path, _return_results, cost_matrix, accumulated_cost_matrix, _check_region, _dtw_classic, _dtw_region, _dtw_sakoechiba, _dtw_itakura, _dtw_multiscale, _dtw_fast
  from pyts.metrics import dtw, itakura_parallelogram, sakoe_chiba_band, show_options
label_desc: Use image node_id 16 for calling a global function with example usage: test_actual_results_dtw_sakoechiba(params, res_desired) without return types