/// <summary>
 /// Registers all notification handlers.
 /// </summary>
 /// <param name="serviceRegistrar">  The service registrar. </param>
 /// <param name="registrationScope"> The registration scope. </param>
 /// <param name="assembliesToScan">  The assemblies to scan. </param>
 /// <returns>  </returns>
 public static IServiceRegistrar RegisterAllNotificationHandlers(this IServiceRegistrar serviceRegistrar, RegistrationScope registrationScope, params Assembly[] assembliesToScan)
 => serviceRegistrar.RegisterAllNotificationHandlers(registrationScope, assembliesToScan.AsEnumerable());