code: def headers(self):
          
          action = self.method.soap.action
          stock = { 'Content-Type' : 'text/xml; charset=utf-8', 'SOAPAction': action }
          result = dict(stock, **self.options.headers)
          log.debug('headers = %s', result)
          return result
docs: Get http headers or the http/https request.
          @return: A dictionary of header/values.
          @rtype: dict