code: def value(self):
      score = self.metric(self._pred_list[-1], self._target_list[-1])
      return {self._name: [self.to_scalar(score)]}
  
file_path: BigDL/python/nano/src/bigdl/nano/deps/openvino/core/metric.py
imports: from openvino.tools.pot import Metric
  import numpy
label_desc: Use image node_id 2 for calling the BaseOpenVINOMetric obj's underlying member method code with example usage: obj.value() and returns: dict