code: def lacp_system_priority(self, **kwargs):
          
          config = ET.Element("config")
          lacp = ET.SubElement(config, "lacp", xmlns="urn:brocade.com:mgmt:brocade-lacp")
          system_priority = ET.SubElement(lacp, "system-priority")
          system_priority.text = kwargs.pop('system_priority')
  
          callback = kwargs.pop('callback', self._callback)
          return callback(config)
docs: Auto Generated Code