class_docstr: Base class of metrics.
class_docstr_tok: ["Base","class","of","metrics","."]
code: def name(self):
      return self._name
  
imports: import time
  from abc import ABC
  from typing import Dict, Optional, Tuple
label_desc: Use image node_id 3 for calling the AbstractMetric obj's underlying member method code with example usage: obj.name() and returns: self