code: def get_featured_or_none(cls, start_date=None):
          
          start_date = start_date or datetime.utcnow()
  
          comm = cls.query.filter(
              FeaturedCommunity.start_date <= start_date
          ).order_by(
              cls.start_date.desc()
          ).first()
          return comm if comm is None else comm.community
docs: Get the latest featured community.
  
          :param start_date: Date after which the featuring starts
          :returns: Community object or None
          :rtype: `invenio_communities.models.Community` or None