code: def paste(self, other):
          
          r, g, b, alpha = other.pil_image.split()
          pil_image = self.pil_image.copy()
          pil_image.paste(other.pil_image, mask=alpha)
          return kurt.Image(pil_image)
docs: Return a new Image with the given image pasted on top.
  
          This image will show through transparent areas of the given image.