discovery

type Advertiser interface {
	// Advertise advertises a service
	Advertise(ctx context.Context, ns string, opts ...Option) (time.Duration, error)
}

type Discoverer interface {
	// FindPeers discovers peers providing a service
	FindPeers(ctx context.Context, ns string, opts ...Option) (<-chan peer.AddrInfo, error)
}

type Discovery interface {
	Advertiser
	Discoverer
}

type Option func(opts *Options) error

type Options struct {
	Ttl   time.Duration
	Limit int

	// Other (implementation-specific) options
	Other map[interface{}]interface{}
}