code: def tokens2text(self, tokens: Iterable[str]) -> str:
      if self.delimiter is None:
          delimiter = " "
      else:
          delimiter = self.delimiter
      return delimiter.join(tokens)
  
file_path: espnet/espnet2/text/word_tokenizer.py
imports: import warnings
  from pathlib import Path
  from typing import Iterable, List, Union
  from typeguard import check_argument_types
  from espnet2.text.abs_tokenizer import AbsTokenizer
label_desc: Use image node_id 4 for calling the WordTokenizer obj's underlying member method code with example usage: obj.tokens2text(tokens) and returns: delimiter