code: def generate_stop_word_filter(stop_words, language=None):
      
  
      def stop_word_filter(token, i=None, tokens=None):
          if token and str(token) not in stop_words:
              return token
  
      # camelCased for for compatibility with lunr.js
      label = (
          "stopWordFilter-{}".format(language)
          if language is not None
          else "stopWordFilter"
      )
      Pipeline.register_function(stop_word_filter, label)
      return stop_word_filter
docs: Builds a stopWordFilter function from the provided list of stop words.
  
      The built in `stop_word_filter` is built using this factory and can be used
      to generate custom `stop_word_filter` for applications or non English
      languages.