docs: def check_smart_storage_config_ids(self):
          """Check SmartStorageConfig controllers is there in hardware.
  
          :raises: IloError, on an error from iLO.
          """
          if self.smart_storage_config_identities is None:
              msg = ('The Redfish controller failed to get the '
                     'SmartStorageConfig controller configurations.')
              LOG.debug(msg)
              raise exception.IloError(msg)