code: def set_rollover(self, area, enabled):
          
  
          if area == u'streaming':
              self._rollover_streaming = enabled
          elif area == u'storage':
              self._rollover_storage = enabled
          else:
              raise ArgumentError("You must pass one of 'storage' or 'streaming' to set_rollover", area=area)
docs: Configure whether rollover is enabled for streaming or storage streams.
  
          Normally a SensorLog is used in ring-buffer mode which means that old
          readings are automatically overwritten as needed when new data is saved.
  
          However, you can configure it into fill-stop mode by using:
          set_rollover("streaming"|"storage", True|False)
  
          By default rollover is set to True for both streaming and storage and can
          be controlled individually for each one.
  
          Args:
              area (str): Either streaming or storage.
              enabled (bool): Whether to enable or disable rollover.