code: def __init__(
      self,
      non_padded_namespaces: Set[str],
      padding_token: str,
      oov_token: str,
  ) -> None:
      super().__init__(
          non_padded_namespaces,
          lambda: {0: padding_token, 1: oov_token},
          lambda: {},
      )
  
imports: import codecs
  import copy
  import logging
  import os
  import re
  from collections import defaultdict
  from typing import Any, Callable, Dict, Iterable, List, Optional, Set, Union, TYPE_CHECKING
  from transformers import PreTrainedTokenizer
  from allennlp.common import Registrable
  from allennlp.common.file_utils import cached_path, FileLock
  from allennlp.common.checks import ConfigurationError
  from allennlp.common.tqdm import Tqdm
  from allennlp.common.util import namespace_match
label_desc: Use image node_id 1 to create a new _IndexToTokenDefaultDict object from inherited base classes: _NamespaceDependentDefaultDict with example: obj = _IndexToTokenDefaultDict(non_padded_namespaces, padding_token, oov_token)