code: def main(self):
      self.first_run()
      self.routine()
      self.add_strategy()
      self.routine()
  
file_path: qlib/examples/online_srv/rolling_online_management.py
imports: import os
  import fire
  import qlib
  from qlib.model.trainer import DelayTrainerR, DelayTrainerRM, TrainerR, TrainerRM, end_task_train, task_train
  from qlib.workflow import R
  from qlib.workflow.online.strategy import RollingStrategy
  from qlib.workflow.task.gen import RollingGen
  from qlib.workflow.online.manager import OnlineManager
  from qlib.tests.config import CSI100_RECORD_XGBOOST_TASK_CONFIG_ROLLING, CSI100_RECORD_LGB_TASK_CONFIG_ROLLING
  from qlib.workflow.task.manage import TaskManager
label_desc: Use image node_id 7 for calling the RollingOnlineExample obj's underlying member method code with example usage: obj.main() without return types