code: def _getGroundTruth(self, inferenceElement):
      
      sensorInputElement = InferenceElement.getInputElement(inferenceElement)
      if sensorInputElement is None:
        return None
      return getattr(self.__currentGroundTruth.sensorInput, sensorInputElement)
docs: Get the actual value for this field
  
      Parameters:
      -----------------------------------------------------------------------
      sensorInputElement:       The inference element (part of the inference) that
                              is being used for this metric