ServiceStack.HttpRequestExtensions.ResolveItem C# (CSharp) Метод

        public static object ResolveItem(this IRequest httpReq,
            string itemKey, Func<IRequest, object> resolveFn)
        {
            object cachedItem;
            if (httpReq.Items.TryGetValue(itemKey, out cachedItem))
                return cachedItem;

            var item = resolveFn(httpReq);
            httpReq.Items[itemKey] = item;

            return item;
        }