code: def image(self, image):
          
          if image.mode != '1':
              raise ValueError('Image must be in mode 1.')
          imwidth, imheight = image.size
          if imwidth != self.width or imheight != self.height:
              raise ValueError('Image must be same dimensions as display ({0}x{1}).' \
                  .format(self.width, self.height))
          print("bitmap display: image")
          image.save("dummydisplay.bmp")
docs: Set buffer to value of Python Imaging Library image.  The image should
          be in 1 bit mode and a size equal to the display size.