internal static IEnumerable <KeyValuePair <string, string> > Traverse(JObject jObject)
{
var visitor = new JsonVisitor();
IDictionary <string, string> data = new SortedDictionary <string, string>(StringComparer.OrdinalIgnoreCase);
foreach (KeyValuePair <string, string> primitive in visitor.VisitJObject(jObject))
{
if (data.ContainsKey(primitive.Key))
{
throw new FormatException($"Key {primitive.Key} is duplicated in json");
}
data.Add(primitive);
yield return(primitive);
}
//return data;
}