code: def __str__(self) -> str:
      path_parts = []
      for entry in self:
          path_part = entry.name
          if entry.index is not None:
              path_part += f"[{entry.index}]"
          path_parts.append(path_part)
      return ".".join(path_parts)
  
file_path: catboost/contrib/python/fonttools/fontTools/ttLib/tables/otTraverse.py
imports: from collections import deque
  from typing import Callable, Deque, Iterable, List, Optional, Tuple
  from .otBase import BaseTable
label_desc: Use image node_id 1 for calling the SubTablePath obj's underlying member method code with example usage: obj.__str__() and returns: str