code: def load_ciede2000_data():
      dtype = [
          ("pair", int),
          ("1", int),
          ("L1", float),
          ("a1", float),
          ("b1", float),
          ("a1_prime", float),
          ("C1_prime", float),
          ("h1_prime", float),
          ("hbar_prime", float),
          ("G", float),
          ("T", float),
          ("SL", float),
          ("SC", float),
          ("SH", float),
          ("RT", float),
          ("dE", float),
          ("2", int),
          ("L2", float),
          ("a2", float),
          ("b2", float),
          ("a2_prime", float),
          ("C2_prime", float),
          ("h2_prime", float),
      ]
  
      # note: ciede_test_data.txt contains several intermediate quantities
      path = fetch("color/tests/ciede2000_test_data.txt")
      return np.loadtxt(path, dtype=dtype)
  
file_path: scikit-image/skimage/color/tests/test_delta_e.py
imports: import numpy
  import pytest
  from numpy.testing import assert_allclose, assert_almost_equal, assert_equal
  from skimage._shared.testing import fetch
  from skimage._shared.utils import _supported_float_type
  from skimage.color.delta_e import deltaE_cie76, deltaE_ciede94, deltaE_ciede2000, deltaE_cmc
label_desc: Use image node_id 2 for calling a global function with example usage: load_ciede2000_data() and returns: np