code: def find_tokens(self, string, **kwargs):
          
          # "The cat purs." => ["The cat purs ."]
          return find_tokens(string,
                  punctuation = kwargs.get(  "punctuation", PUNCTUATION),
                abbreviations = kwargs.get("abbreviations", ABBREVIATIONS),
                      replace = kwargs.get(      "replace", replacements),
                    linebreak = r"\n{2,}")
docs: Returns a list of sentences from the given string.
              Punctuation marks are separated from each word by a space.