code: def result(self):
      # calculate accuracy
      preds, labels = self.stack(self.pred_list, self.label_list)
      accuracy = self.metric(preds, labels)
      return self.to_scalar(accuracy)
  
file_path: BigDL/python/nano/src/bigdl/nano/deps/neural_compressor/core/base_metric.py
imports: from abc import ABC, abstractmethod
  from bigdl.nano.utils.common import invalidInputError
label_desc: Use image node_id 6 for calling the BaseINCMetric obj's underlying member method code with example usage: obj.result() and returns: self