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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:
 def options_from_file(args):
 """Get a argparse.Namespace and return it updated with options from config files. Config files will be parsed with priority equal to his order in CONFIG_FILES. """

    logger.debug("updating options from config files")
    updated_from_file = []
    for config_file in CONFIG_FILES:
        logger.debug("updating from: %s", config_file)
        parser = ConfigParser()
        parser.read(config_file)
        try:
            items = parser.items('fades')
        except NoSectionError:
            continue

        for config_key, config_value in items:
            if config_value in ['true', 'false']:
                config_value = config_value == 'true'
            if config_key in MERGEABLE_CONFIGS:
                current_value = getattr(args, config_key, [])
                if current_value is None:
                    current_value = []
                current_value.append(config_value)
                setattr(args, config_key, current_value)
            if not getattr(args, config_key, False) or config_key in updated_from_file:
                # By default all 'store-true' arguments are False. So we only
                # override them if they are False. If they are True means that the
                # user is setting those on the CLI.
                setattr(args, config_key, config_value)
                updated_from_file.append(config_key)
                logger.debug("updating %s to %s from file settings", config_key, config_value)

    return args