[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 get_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]
        """


        res = self.client.quantaxis.usersetting.find_one({'section': section})
        if res:
            return res.get(option, default_value)
        else:
            self.set_config(section, option, default_value)
            return default_value