code: def __init__(self) -> None:
      self.itos: List = []
      self.stoi: Dict = {}
  
file_path: captum/tests/attr/models/test_pytext.py
imports: from __future__ import print_function
  import os
  import tempfile
  import unittest
  from typing import Dict, List
  import torch
label_desc: Use image node_id 1 to create a new VocabStub object  with example: obj = VocabStub()