code: def _test_similarity_measure(simi, val):
      I = make_xyz_image(make_data_int16(), dummy_affine, "scanner")
      J = make_xyz_image(I.get_fdata().copy(), dummy_affine, "scanner")
      R = HistogramRegistration(I, J)
      R.subsample(spacing=[2, 1, 3])
      R.similarity = simi
      assert_almost_equal(R.eval(Affine()), val)
  
imports: import numpy
  import pytest
  from numpy.testing import assert_array_equal
  from ....core.image.image_spaces import make_xyz_image
  from ....testing import assert_almost_equal
  from .._registration import _joint_histogram
  from ..affine import Affine, Rigid
  from ..histogram_registration import HistogramRegistration
label_desc: Use image node_id 13 for calling a global function with example usage: _test_similarity_measure(simi, val) without return types