code: def overlay(image1, image2):
      """
      Superimposes two images on top of each other using the Overlay algorithm
  
      :rtype: :py:class:`~PIL.Image.Image`
      """
  
      image1.load()
      image2.load()
      return image1._new(image1.im.chop_overlay(image2.im))
  
imports: from .None import Image
label_desc: Use image node_id 11 for calling a global function with example usage: overlay(image1, image2) and returns: image1