code: def nas_server_ip_server_ip(self, **kwargs):
          
          config = ET.Element("config")
          nas = ET.SubElement(config, "nas", xmlns="urn:brocade.com:mgmt:brocade-qos")
          server_ip = ET.SubElement(nas, "server-ip")
          server_ip = ET.SubElement(server_ip, "server-ip")
          server_ip.text = kwargs.pop('server_ip')
  
          callback = kwargs.pop('callback', self._callback)
          return callback(config)
docs: Auto Generated Code