PBDOM access data from an xml

Cordial Greetings Gentlemen.

I have this xml, and I want to access the data, but it gives me an invalid object error.

What am I doing wrong?

<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
 <s:Body>
 <FoliosRestantesResponse xmlns="http://tempuri.org/">
 <FoliosRestantesResult xmlns:a="http://schemas.datacontract.org/2004/07/ServiceSoap.UBL2._0.Response" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
 <a:codigo>200</a:codigo>
 <a:foliosRestantes>12</a:foliosRestantes>
 <a:mensaje>Se retorna folios restantes.</a:mensaje>
 <a:resultado>Procesado</a:resultado>
 </FoliosRestantesResult>
 </FoliosRestantesResponse>
 </s:Body>
</s:Envelope>


Este es el codigo

This is my code to access the data


 ls_value = lpbdom_Doc.GetRootElement().GetChildElement("Body", "s","http://schemas.xmlsoap.org/soap/envelope/").&
 GetChildElement("FoliosRestantesResponse","","http://tempuri.org/").&
 GetChildElement("FoliosRestantesResult","a","http://schemas.datacontract.org/2004/07/ServiceSoap.UBL2._0.Response").&
 GetChildElement("codigo","","http://schemas.datacontract.org/2004/07/ServiceSoap.UBL2._0.Response").gettext() 

Thanks for your help

error attached

lpbdom_element = lpbdom_Doc.GetRootElement() lpbdom_element = lpbdom_element.GetChildElement("Body", "s","http://schemas.xmlsoap.org/soap/envelope/") lpbdom_element = lpbdom_element.GetChildElement("FoliosRestantesResponse","","http://tempuri.org/") lpbdom_element = lpbdom_element.GetChildElement("FoliosRestantesResult","","http://tempuri.org/") lpbdom_element = lpbdom_element.GetChildElement("codigo","a","http://schemas.datacontract.org/2004/07/ServiceSoap.UBL2._0.Response") ls_value = lpbdom_element.gettext()

Resolved PBDOM access data from an xml