@property
    def background_image_url(self):
        img = self.data.background_image
        try:
            return self.assets_manager.get_image_url(img, include_filename=False) if img else None
        except __HOLE__:
            log.warning('Missing background %r for board %r', img, self.id)
            return None
dataset/ETHPy150Open Net-ng/kansha/kansha/board/comp.py/Board.background_image_url