def get_next_id(self):
        try:
            query = {'_id': 'last_id'}
            update = {'$inc': {'id': 1}}
            fn = self.db.internal.find_and_modify
            row = fn(query, update, upsert=True, new=True)
        except Exception as e:
            raise DatabaseException(e)
        return row['id']
def create(self):
        self._set_changed_options()
        if self.client.check_mode:
            return True
        if self.want.base_key is None:
            raise F5ModuleError(
                "You must specify a 'base_key' when creating a license pool"
            )
        self.create_on_device()
        return True