code: def tokenize(self, untokenized_string: str, model=None):
          
          if self.language in INDIAN_LANGUAGES:
              return self.indian_punctuation_tokenize_regex(untokenized_string)
          else:
              return self.tokenize_sentences(untokenized_string)
docs: Alias for tokenize_sentences()—NLTK's PlaintextCorpusReader needs a
          function called tokenize in functions used as a parameter for sentence
          tokenization.
  
          :type untokenized_string: str
          :param untokenized_string: A string containing one of more sentences.