def schema(self):
        """ The DQL syntax for creating this item """
        schema = "%s %s %s %s('%s'" % (
            self.name,
            self.data_type,
            self.index_type,
            self.key_type,
            self.index_name,
        )
        if self.includes is not None:
            schema += ", ["
            schema += ", ".join(("'%s'" % i for i in self.includes))
            schema += "]"
        return schema + ")"
The DQL syntax for creating this item