code: def get_stp_mst_detail_output_cist_hello_time(self, **kwargs):
          
          config = ET.Element("config")
          get_stp_mst_detail = ET.Element("get_stp_mst_detail")
          config = get_stp_mst_detail
          output = ET.SubElement(get_stp_mst_detail, "output")
          cist = ET.SubElement(output, "cist")
          hello_time = ET.SubElement(cist, "hello-time")
          hello_time.text = kwargs.pop('hello_time')
  
          callback = kwargs.pop('callback', self._callback)
          return callback(config)
docs: Auto Generated Code