class_docstr: Abstract base class
class_docstr_tok: ["Abstract","base","class"]
code: def name(self):
      return self._name
  
imports: import time
  from contextlib import contextmanager
  from metaflow.sidecar import Message, MessageTypes, Sidecar
label_desc: Use image node_id 3 for calling the Metric obj's underlying member method code with example usage: obj.name() and returns: self