def endpoint(cls):
        """Return the :class:`sandman.model.Model`'s endpoint.

        :rtype: string

        """
        endpoint = ''
        if cls.__endpoint__ is not None:
            return cls.__endpoint__
        elif cls.__from_class__ is not None:
            endpoint = cls.__from_class__.__name__.lower()
        else:
            endpoint = cls.__tablename__.lower()
        if not endpoint.endswith('s'):
            endpoint += 's'
        return endpoint