code: def __repr__(self):
      return "Metric({}, {}, {})".format(
          self.name, self.metric_function, self.direction
      )
  
imports: from collections import OrderedDict
  from contextlib import suppress
  import numpy
  import pandas
  from typing import Dict, Iterable, List, Tuple, Union
  from sklearn import metrics
  from sklearn.utils.multiclass import type_of_target, unique_labels
label_desc: Use image node_id 3 for calling the Metric obj's underlying member method code with example usage: obj.__repr__() and returns: str