class_docstr: Word replace transformation to implement normal word replace functions.
docstr: Judge whether the input word belongs to the stop words vocab.
  
  :param str token: the input word to be judged
  :return bool: is a stop word or not
docstr_tok: ["Judge","whether","the","input","word","belongs","to","the","stop","words","vocab",".",":","param","str","token",":","the","input","word","to","be","judged",":","return","bool",":","is","a","stop","word","or","not"]
code: def is_stop_words(self, token):
      r"""
      Judge whether the input word belongs to the stop words vocab.
  
      :param str token: the input word to be judged
      :return bool: is a stop word or not
  
      """
      return self.stop_words is not None and token in self.stop_words
  
file_path: textflint/textflint/generation/transformation/cn_word_substitute.py
imports: from abc import abstractmethod
  from ..transformation import Transformation
  from ...common.settings import STOP_WORDS, ORIGIN
  from ...common.utils.list_op import trade_off_sub_words
label_desc: Use image node_id 6 for calling the CnWordSubstitute obj's underlying member method code with example usage: obj.is_stop_words(token) and returns: unknown