code: def to_scalar(self, score):
      return score.item()
  
file_path: BigDL/python/nano/src/bigdl/nano/deps/openvino/pytorch/metric.py
imports: from bigdl.nano.utils.common import invalidInputError
  from ..core.metric import BaseOpenVINOMetric
  import torch
  from torchmetrics import Metric
  import inspect
label_desc: Use image node_id 5 for calling the PytorchOpenVINOMetric obj's underlying member method code with example usage: obj.to_scalar(score) and returns: score