public void Serialize(Stream s, object data, Encoding encoding = null, string boundary = null, ObjectSerializerSettings settings = null)
 {
   MultipartFormDataPropertyVisitor v = new MultipartFormDataPropertyVisitor(s, encoding, boundary, settings);
   Serializer.Serialize(data, v, settings);
 }
        public void Serialize(Stream s, object data, Encoding encoding = null, string boundary = null, ObjectSerializerSettings settings = null)
        {
            MultipartFormDataPropertyVisitor v = new MultipartFormDataPropertyVisitor(s, encoding, boundary, settings);

            Serializer.Serialize(data, v, settings);
        }