public override string ToString() {
StringBuilder sb = new StringBuilder("refreshAuthentication_result(");
sb.Append("Success: ");
sb.Append(Success== null ? "<null>" : Success.ToString());
sb.Append(",UserException: ");
sb.Append(UserException== null ? "<null>" : UserException.ToString());
sb.Append(",SystemException: ");
sb.Append(SystemException== null ? "<null>" : SystemException.ToString());
sb.Append(")");
return sb.ToString();
}