code: def result(self, log_verbosity=False):
      if log_verbosity:
          logging.info("TP {}".format(self.TP))
          logging.info("TN {}".format(self.TN))
          logging.info("FP {}".format(self.FP))
          logging.info("FN {}".format(self.FN))
      acc = (self.TP + self.TN) / (
          self.TP + self.TN + self.FP + self.FN
      )
      precision = self.TP / (self.TP + self.FP)
      recall = self.TP / (self.TP + self.FN)
      return acc, precision, recall
  
imports: import numpy
  from absl import logging
  import delta.compat
  from delta import utils
  from delta.utils.register import registers
  from delta.utils.register import import_all_modules_for_register
  from delta.serving.base_frozen_model import Evaluater
label_desc: Use image node_id 3 for calling the ClsMetric obj's underlying member method code with example usage: obj.result(log_verbosity) and returns: acc,  precision,  recall