def METHOD_NAME(self, subcmd, opts, *args):
    """${cmd_name}: manage config file
    ${cmd_usage}
    ${cmd_option_list}
    """
    config = Config(self.session)
    if opts.set:
        config.set(args[0], args[1])
    elif opts.get:
        print(config.get(args[0]))
    elif opts.delete:
        config.delete(args[0])
    else:
        for entry in config.settings():
            print("%s=%s"%entry)