code: def brightness(img, factor, **__):
      return ImageEnhance.Brightness(img).enhance(factor)
  
imports: import math
  import numpy
  import random
  import re
  import PIL
  from PIL import Image, ImageEnhance, ImageOps
label_desc: Use image node_id 18 for calling a global function with example usage: brightness(img, factor) and returns: ImageEnhance