public static void Test()
{
Dictionary <string, object> dict = new Dictionary <string, object>(1);
List <FavoriteLevel> levels = new List <FavoriteLevel>(1);
levels.Add(new FavoriteLevel("123", 0));
dict.Add("123", levels);
var settings = new JsonSerializerSettings();
settings.TypeNameHandling = TypeNameHandling.All;
byte[] data = JsonExtensions.SerializeToByteArray(dict, settings);
Dictionary <string, object> incomingDict = JsonExtensions.DeserializeFromByteArray <Dictionary <string, object> >(data, settings);
object listBack = incomingDict["123"];
Debug.Assert(listBack.GetType() == levels.GetType()); // No assert.
}