code: def test_sanity():
      # FIXME: assert_image
      # Implicit asserts no exception:
      ImageEnhance.Color(hopper()).enhance(0.5)
      ImageEnhance.Contrast(hopper()).enhance(0.5)
      ImageEnhance.Brightness(hopper()).enhance(0.5)
      ImageEnhance.Sharpness(hopper()).enhance(0.5)
  
file_path: pillow/Tests/test_imageenhance.py
imports: from __future__ import annotations
  import pytest
  from PIL import Image, ImageEnhance
  from .helper import assert_image_equal, hopper
label_desc: Use image node_id 1 for calling a global function with example usage: test_sanity() without return types