code: def test_integral_intested_points():
      np.random.seed(22)
      f = np.random.rand(16, 16) * 230
      f = f.astype(np.uint8)
      f = surf.integral(f)
      with pytest.raises(TypeError):
          surf.interest_points(f.astype(np.int32), is_integral=True)
  
file_path: mahotas/mahotas/tests/test_surf.py
imports: import numpy
  import mahotas
  import mahotas.features.surf
  from mahotas.features import _surf
  from .utils import luispedro_jpg
  import pytest
label_desc: Use image node_id 11 for calling a global function with example usage: test_integral_intested_points() without return types