code: def get_origin(self):
      return self.origins.get(super().__repr__(), str(self))
  
file_path: datasets/src/datasets/utils/track.py
imports: from collections.abc import Iterator
  from typing import Iterable
label_desc: Use image node_id 2 for calling the tracked_str obj's underlying member method code with example usage: obj.get_origin() and returns: self