How could we add InclusiveNamespaces tag inside Signature, when we sign a message?‽‽

Hello,

We have the following code:

Method incorporarDocumento(request As EsquemasDatos.incorporarDocumentoRequest(REQUIRED=1)) As EsquemasDatos.documentoIncorporado(XMLNAME="return") [ Final, ProcedureBlock = 1, SoapBindingStyle = document, SoapBodyUse = literal, WebMethod ]
{
set ..MTOMRequired = 1 set ..SecurityOut.actor = "http://www.gobiernodecanarias.org/Platino/Authentication/1.0"
    set ..SecurityOut.mustUnderstand = "1"
    set ..SecurityNamespace = "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utili..."
        
//BINARY SECURITY TOKEN
    set x509alias = "certPlatinoPRE"
    //set x509alias = "pemp_open"
    set cred = ##class(%SYS.X509Credentials).GetByAlias(x509alias)
    set cert = ##class(%SOAP.Security.BinarySecurityToken).CreateX509Token(cred)     
    //SIGNATURE TOKEN
    set sig=##class(%XML.Security.Signature).CreateX509(cert)
    do sig.SetSignatureMethod($$$SOAPWSrsasha1)
    do sig.SetDigestMethod($$$SOAPWSrsasha1)
    //---     //ADD TOKENS
    do ..SecurityOut.AddToken(cert)
    do ..SecurityOut.AddElement(utoken)
do ..SecurityOut.AddElement(sig)  Quit ..WebMethod("incorporarDocumento").Invoke($this,"",.request)
}

We should be able to add the tag <InclusiveNamespaces> inside our <Signature>, for example:

How could we achieve that?‽‽
 

We have read:

https://cedocs.intersystems.com/latest/csp/documatic/%25CSP.Documatic.cl...

https://docs.intersystems.com/irislatest/csp/docbook/DocBook.UI.Page.cls...

https://www.w3.org/TR/xml-exc-c14n/#def-InclusiveNamespaces-PrefixList

https://docs.intersystems.com/irislatest/csp/docbook/DocBook.UI.Page.cls...

https://cedocs.intersystems.com/latest/csp/documatic/%25CSP.Documatic.cl...