code: def test_array_const_args(self):
      black = pyvips.Image.black(16, 16)
      r = black.draw_rect(255, 10, 12, 1, 1)
      g = black.draw_rect(255, 10, 11, 1, 1)
      b = black.draw_rect(255, 10, 10, 1, 1)
      im = r.bandjoin([g, b])
  
      assert im.width == 16
      assert im.height == 16
      assert im.bands == 3
  
      im = im.conv(
          [[0.11, 0.11, 0.11], [0.11, 0.11, 0.11], [0.11, 0.11, 0.11]]
      )
  
      assert im.width == 16
      assert im.height == 16
      assert im.bands == 3
  
file_path: pyvips/tests/test_constants.py
imports: import pyvips
label_desc: Use image node_id 3 for calling the TestConstants obj's underlying member method code with example usage: obj.test_array_const_args() without return types