code: def test_on_pil_image(self) -> None:
      for w in [32, 64, 128]:
          for h in [32, 64, 128]:
              solarization = RandomSolarization(0.5)
              sample = Image.new("RGB", (w, h))
              solarization(sample)
  
imports: import unittest
  from PIL import Image
  from lightly.transforms.solarize import RandomSolarization
label_desc: Use image node_id 1 for calling the TestRandomSolarization obj's underlying member method code with example usage: obj.test_on_pil_image() without return types