NServiceBus - Unsubscribe from events during startup

UnsubscribeHostedService.cs

using System;
using Microsoft.Extensions.Hosting;

class UnsubscribeHostedService(IMessageSession messageSession : BackgroundService
{
	protected override async Task ExecuteAsync(CancellationToken stoppingToken)
    {
        await messageSession.Unsubscribe<MyEvent>();
    }
}

// var host = Host.CreateDefaultBuilder(args)
//  .ConfigureServices(services => {
//    services.AddHostedService<UnsubscribeHostedService>();
//  })
//  .Build();