code: def is_stop_words(self, token):
      return self.stopwords is not None and token in self.stopwords
  
imports: import string
  import re
  from typing import Iterable
  from nlpaug.util import Method
  from nlpaug.util.text.tokenizer import Tokenizer
  from nlpaug import Augmenter
  from nlpaug.util import WarningException, WarningName, WarningCode, WarningMessage
label_desc: Use image node_id 4 for calling the WordAugmenter obj's underlying member method code with example usage: obj.is_stop_words(token) and returns: unknown