public async Task SaveMultivaluedAsyncTest()
        {
            var array = new[] { 1, 3, 4, 5, 6, 7 };
            var obj = new Article("object");
            obj.SetList<int>("multifield", array);
            await obj.SaveAsync();

            var saved = await Articles.GetAsync("object", obj.Id);
            var array2 = saved.GetList<int>("multifield");
            Assert.IsTrue(array.Intersect(array2).Count() == array.Length);
        }