code: def test_on_pil_image(self) -> None:
      crop = Jigsaw()
      sample = Image.new("RGB", (255, 255))
      crop(sample)
  
imports: import unittest
  from PIL import Image
  from lightly.transforms.jigsaw import Jigsaw
label_desc: Use image node_id 1 for calling the TestJigsaw obj's underlying member method code with example usage: obj.test_on_pil_image() without return types