discovery.Advertise TTL

// TTL is an option that provides a hint for the duration of an advertisement
func TTL(ttl time.Duration) Option {
return func(opts *Options) error {
opts.Ttl = ttl
return nil

我想实现节点掉线10分钟就不能被findpeer 找到
I want to realize that the node cannot be found by Findpeers within 10 minutes after it is disconnected
It seems that this parameter is not what I think?