def render_meta(canteen, menu_feed_url): """Render a OpenMensa XML meta feed for a given canteen. :param Canteen canteen: the canteen :param menu_feed_url: the canteen menu URL :return: the XML meta feed as string """ builder = LazyBuilder() builder.name = canteen.name builder.address = canteen.street builder.city = canteen.city builder.define(name='full', priority='0', url=menu_feed_url, source=None, dayOfWeek='*', dayOfMonth='*', hour='8-18', minute='0', retry='30 1') return builder.toXMLFeed()