code: def inspect_virtual(self, stream_id):
          
  
          stream = DataStream.FromEncoded(stream_id)
  
          if stream.buffered:
              return [pack_error(ControllerSubsystem.SENSOR_LOG, SensorLogError.VIRTUAL_STREAM_NOT_FOUND), 0]
  
          try:
              reading = self.storage.inspect_last(stream, only_allocated=True)
              return [Error.NO_ERROR, reading.value]
          except StreamEmptyError:
              return [Error.NO_ERROR, 0]
          except UnresolvedIdentifierError:
              return [pack_error(ControllerSubsystem.SENSOR_LOG, SensorLogError.VIRTUAL_STREAM_NOT_FOUND), 0]
docs: Inspect the last value written into a virtual stream.
  
          Args:
              stream_id (int): The virtual stream was want to inspect.
  
          Returns:
              (int, int): An error code and the stream value.