subscriber

type Params struct {
	Log            *zap.Logger
	Endpoint       string
	DialTimeout    time.Duration
	StartFromBlock uint32
}

type Subscriber interface {
	SubscribeForNotification(...util.Uint160) (<-chan *subscriptions.NotificationEvent, error)
	UnsubscribeForNotification()
	BlockNotifications() (<-chan *block.Block, error)
	SubscribeForNotaryRequests(mainTXSigner util.Uint160) (<-chan *subscriptions.NotaryRequestEvent, error)
	Close()
}