code: def test_actual_results_fixed_indices(indices, arr_desired):
      """Test the actual results with fixed indices."""
      X = [
          [0, 1, 3, 2, 1, 3, 1.5, 1, 2, 3, 3, 5],
          [4, 2, 0, 2, 3, 5, 3.0, 2, 1, 2, 4, 2],
      ]
      fe = WindowFeatureExtractor()
      fe.indices_ = np.asarray(indices)
      arr_actual = fe.transform(X)
      np.testing.assert_allclose(
          arr_actual, arr_desired, atol=1e-5, rtol=0
      )
  
file_path: pyts/pyts/classification/tests/test_time_series_forest.py
imports: import numpy
  import pytest
  import re
  from pyts.classification import TimeSeriesForest
  from pyts.classification.time_series_forest import WindowFeatureExtractor
label_desc: Use image node_id 4 for calling a global function with example usage: test_actual_results_fixed_indices(indices, arr_desired) without return types