def LoadMapping(self):
    mapping = self.handler_cls.SERVICE.LoadServerMapping()
    if mapping:
      return mapping
    return self.RenewMapping()
Save your database credentials so you don't have to save them in script.
dataset/ETHPy150Open google/grr/grr/server/data_server/data_server.py/StandardDataServer.LoadMapping--crossover with--dataset/ETHPy150Open yhat/db.py/db/db.py/DB.save_credentials