public static void Call()
{
NotificationManager mediator = new NotificationManager();
Worker customer = new Customer(mediator);
Worker developer = new Developer(mediator);
Worker qa = new QA(mediator);
mediator.SetListeners(customer, developer, qa);
customer.Send("Need new solution");
developer.Send("Task don need testing");
qa.Send("No bugs detected, solution is done");
}
