public void ShowMessage(object sender, Message messageFormat)
{
PublisherAndSubscriber pubSub = (PublisherAndSubscriber)sender;
Console.WriteLine("Subscriber : " + this.type + "=> Message publish by " + pubSub.type + ":" + messageFormat.message);
}
public async Task UnSubscribeMessage(PublisherAndSubscriber pubSub)
{
pubSub.publishEvent -= ShowMessage;
}