public override string ToString() {
StringBuilder sb = new StringBuilder("login_result(");
sb.Append("Authnx: ");
sb.Append(Authnx== null ? "<null>" : Authnx.ToString());
sb.Append(",Authzx: ");
sb.Append(Authzx== null ? "<null>" : Authzx.ToString());
sb.Append(")");
return sb.ToString();
}