How do I change the return of a method (Webmethod) in ASMX?

Question

I developed an ASMX with a method, and when executing the code on the return of this method, it mounts an XML from a certain class defined by an XSD Schema, which however comes a TAG with suffix result, how can I change this ?

    [WebMethod]
    public UpsertContasResponse upsertContas(upsertContas.req req)
    {
       ---- codigos  -----
            var cliRetorno = new UpsertContasResponse()
            {
                codigo = req.Codigo,
                descricao = (erro == null ? null : erro),
                status = "OK",
                OrgBukrs = "XXXX"
            };
           
            return cliRetorno;
     }

XML that is generated in return :

<Soap:Envelope xmlns:Soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> Soap:Body 0000000281 OK XXXX </Soap:Body> </Soap:Envelope>

I want to change the name of this tag " "that I do not define anywhere, as I do ??