code: def test_sum_rect_edge():
      # regression
      # https://github.com/luispedro/mahotas/issues/58
      f = np.arange(80 * 60).reshape((80, 60)) % 7
      fi = surf.integral(f.copy())
      _surf.sum_rect(fi, 0, 0, 81, 61)
  
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 4 for calling a global function with example usage: test_sum_rect_edge() without return types