void OnSubChanged(CBPeripheralManagerSubscriptionEventArgs args, bool subscribed)
{
if (!this.IsThis(args.Characteristic))
{
return;
}
var peripheral = this.cache.SetSubscription(args.Central, subscribed);
var sub = new CharacteristicSubscription(this, peripheral, subscribed);
this.onSubscribe(sub);
}
void OnUnSubscribed(object sender, CBPeripheralManagerSubscriptionEventArgs args) => this.OnSubChanged(args, false);
