docs: def reverse_char(self, hints):
          """Return QuerySet of objects from SQLAlchemy of results.
  
          Parameters
          ----------
          hints: list of str
              strings to lookup
  
          Returns
          -------
          :class:`sqlalchemy.orm.query.Query` :
              reverse matches
          """
          if isinstance(hints, string_types):
              hints = [hints]
  
          Unihan = self.sql.base.classes.Unihan
          columns = Unihan.__table__.columns
          return self.sql.session.query(Unihan).filter(
              or_(*[column.contains(hint) for column in columns for hint in hints])
          )