[summary]

        Keyword Arguments:
            section {str} -- [description] (default: {'MONGODB'})
            option {str} -- [description] (default: {'uri'})
            default_value {[type]} -- [description] (default: {DEFAULT_DB_URI})

        Returns:
            [type] -- [description]

def set_config(
            self,
            section='MONGODB',
            option='uri',
            default_value=DEFAULT_DB_URI
    ):
        """[summary]

        Keyword Arguments:
            section {str} -- [description] (default: {'MONGODB'})
            option {str} -- [description] (default: {'uri'})
            default_value {[type]} -- [description] (default: {DEFAULT_DB_URI})

        Returns:
            [type] -- [description]
        """
        t = {'section': section, option: default_value}
        self.client.quantaxis.usersetting.update(
            {'section': section}, {'$set':t}, upsert=True)