public sealed class BlockDurationAttribute : System.Attribute 

using Microsoft.AspNetCore.Mvc;
            namespace MyProject.Controllers
            {
            using Walter.Web.FireWall;
            using Walter.Web.FireWall.Annotations;
            using Walter.BOM.Geo;
            [Geo(blockLocation: GeoLocation.AFRICA | GeoLocation.LATIN_AMERICA | GeoLocation.Netherlands)]
            [User(allow: UserTypes.IsHuman | UserTypes.IsSearchEngine)]
            [BlockDuration(duration: 60, sliding: true, doubleDurationPerIncident: true)]
            public sealed class HomeController : Controller
            {
            private readonly ILogger<HomeController> _logger;
            public HomeController(ILogger<HomeController> logger)
            {
            _logger = logger;
            }
            public IActionResult Index()
            {
            return View();
            }
            public IActionResult Privacy()
            {
            return View();
            }
            [Ignore]
            [ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
            public IActionResult Error()
            {
            return View(new ErrorViewModel { RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier });
            }
            }
            }