nancy binding for some app

SomeNancyModule.cs

    public class ItemModule : NancyModule
    {
        public ItemModule() : base("/items")
        {
            Get("/", p => GetAllItems(this.Bind<ItemRequestModel>()));
            Get("/{ItemID}", p => GetItem(this.Bind<ItemRequestModel>()));
        }

        public List<ItemResponseModel> GetAllItems(ItemRequestModel _ItemRequestModel)
        {
            return new List<ItemResponseModel>();
        }
        
        public List<ItemResponseModel> GetItem(ItemRequestModel _ItemRequestModel)
        {
            return new List<ItemResponseModel>();
        }
    }