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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 async def reset_config(self, to_default):
 """ Restore application config to default values. :param list to_default: A list of config options to be reset to their default value. """

        app_facade = client.ApplicationFacade.from_connection(self.connection)

        log.debug(
            'Restoring default config for %s: %s', self.name, to_default)

        return await app_facade.Unset(self.name, to_default)