code: public String marshall(String methodName, Argument[] paras) {
          String soapMsg = XmlGen.toXML(methodName, paras, vimNameSpace);
          if (log.isTraceEnabled()) {
              log.trace("Marshalled Payload String xml: " + soapMsg);
          }
          return soapMsg;
      }
docs: This method will marshall the java payload object in to xml payload.
  
  @param methodName
  @param paras
  @return String - XML SoapMessage