code: def test_raise_kernel_size_deprecation(self) -> None:
      gaussian_blur = GaussianBlur(kernel_size=2)
      self.assertWarns(DeprecationWarning)
  
file_path: lightly/tests/transforms/test_gaussian_blur.py
imports: import unittest
  from PIL import Image
  from lightly.transforms.gaussian_blur import GaussianBlur
label_desc: Use image node_id 2 for calling the TestGaussianBlur obj's underlying member method code with example usage: obj.test_raise_kernel_size_deprecation() without return types