code: def _copy_margin(self, cli, lazy_screen, new_screen, write_position, move_x, width):
          
          xpos = write_position.xpos + move_x
          ypos = write_position.ypos
  
          margin_write_position = WritePosition(xpos, ypos, width, write_position.height)
          self._copy_body(cli, lazy_screen, new_screen, margin_write_position, 0, width)
docs: Copy characters from the margin screen to the real screen.