List models in the database. Takes optional parameters limit and
        offset for pagination.

        Parameters
        ----------
        limit : int
            Limit number of models in the result set
        offset : int
            Set offset in list (order as defined by object store)

        Returns
        -------
        ObjectListing

def list_models(self, limit=-1, offset=-1):
        """List models in the database. Takes optional parameters limit and
        offset for pagination.

        Parameters
        ----------
        limit : int
            Limit number of models in the result set
        offset : int
            Set offset in list (order as defined by object store)

        Returns
        -------
        ObjectListing
        """
        return self.list_objects(limit=limit, offset=offset)