void Callback(GetAllFeedsResponse response)
 {
     foreach (var feed in response.Feeds)
     {
         Debug.WriteLine(feed.FeedUrl);
     }
 }
        public static GetAllFeedsResponse DeSerializeMultiple(Stream content)
        {
            var getAllFeedsResponse = new GetAllFeedsResponse { Feeds = new List<Feed>() };
            if (content != null)
            {
                var array = JsonValue.Load(content);

                foreach (var value in array.Select(x => x.Value))
                {
                    getAllFeedsResponse.Feeds.Add(DeSerializeFeed(value));
                }
            }
            return getAllFeedsResponse;
        }