code: def __init__(self):
      self._post_tokenizer = TokenizerRegexp()
  
file_path: evaluate/metrics/bleu/tokenizer_13a.py
imports: import re
  from functools import lru_cache
label_desc: Use image node_id 2 to create a new Tokenizer13a object from inherited base classes: BaseTokenizer with example: obj = Tokenizer13a()