code: def interpret(self, msg):
          
          for gallery in msg.get('galleries', []):
              self.add_folder(gallery)
              
          image_file = msg.get('image')
          if not image_file: return
  
          return self.find_image(image_file)
docs: Try and find the image file 
  
          some magic here would be good.
  
          FIXME move elsewhere and make so everyone can use.
  
          interpreter that finds things?