code: def check_polyder(p, m, expected):
      dp = _polyder(p, m)
      assert_array_equal(dp, expected)
  
file_path: catboost/contrib/python/scipy/py3/scipy/signal/tests/test_savitzky_golay.py
imports: import numpy
  from numpy.testing import assert_allclose, assert_equal, assert_almost_equal, assert_array_equal, assert_array_almost_equal
  from scipy.ndimage import convolve1d
  from scipy.signal import savgol_coeffs, savgol_filter
  from scipy.signal._savitzky_golay import _polyder
label_desc: Use image node_id 1 for calling a global function with example usage: check_polyder(p, m, expected) without return types