public static void EnablePullDeliveryUsing(this EventingServer eventingServer, PullServer pullServer)
{
eventingServer.Subscribed += (s, args) => pullServer.RegisterPullHandler(args.Identifier, new EventingPullHandler(args.EventSource));
eventingServer.Unsubscribed += (s, args) => pullServer.UnregisterPullHandler(args.Identifier);
}
