code: def test_modefilter():
      def modefilter(mode):
          im = Image.new(mode, (3, 3), None)
          im.putdata(list(range(9)))
          # image is:
          #   0 1 2
          #   3 4 5
          #   6 7 8
          mod = im.filter(ImageFilter.ModeFilter).getpixel((1, 1))
          im.putdata([0, 0, 1, 2, 5, 1, 5, 2, 0])  # mode=0
          mod2 = im.filter(ImageFilter.ModeFilter).getpixel((1, 1))
          return mod, mod2
  
      assert modefilter("1") == (4, 0)
      assert modefilter("L") == (4, 0)
      assert modefilter("P") == (4, 0)
      assert modefilter("RGB") == ((4, 0, 0), (0, 0, 0))
  
file_path: pillow-simd/Tests/test_image_filter.py
imports: import pytest
  from PIL import Image, ImageFilter
  from .helper import assert_image_equal, hopper
label_desc: Use image node_id 3 for calling a global function with example usage: test_modefilter() and returns: mod,  mod2