old_contents: from PIL import Image
  
  
  class PilWrapper(object):
  
      """windows only."""
      name = 'pil'
      childprocess = False
  
      def __init__(self):
          from PIL import ImageGrab  # windows only
          self.ImageGrab = ImageGrab
  
      def grab(self, bbox=None):
          return self.ImageGrab.grab(bbox)
  
      def backend_version(self):
          return Image.VERSION
  
new_contents: from PIL import Image, __version__
  
  
  class PilWrapper(object):
  
      """windows only."""
      name = 'pil'
      childprocess = False
  
      def __init__(self):
          from PIL import ImageGrab  # windows only
          self.ImageGrab = ImageGrab
  
      def grab(self, bbox=None):
          return self.ImageGrab.grab(bbox)
  
      def backend_version(self):
          return __version__
  
subject: fix backend_version()