class_docstr: Tuple Metric 
code: def __repr__(self) -> str:
      return (
          f"tp: {self.tp}, gold: {self.gold_num}, pred: {self.pred_num}"
      )
  
imports: from collections import defaultdict
  from copy import deepcopy
  from typing import Dict, List
  import sys
label_desc: Use image node_id 2 for calling the Metric obj's underlying member method code with example usage: obj.__repr__() and returns: str, self, str, self, str, self