code: def _text(self, text):
          '''Parse a Tweet without generating HTML.'''
          URL_REGEX.sub(self._parse_urls, text)
          USERNAME_REGEX.sub(self._parse_users, text)
          LIST_REGEX.sub(self._parse_lists, text)
          HASHTAG_REGEX.sub(self._parse_tags, text)
          return Nonf _text(self, text):
          '''Parse a Tweet without generating HTML.'''
          URL_REGEX.sub(self._parse_urls, text)
          USERNAME_REGEX.sub(self._parse_users, text)
          LIST_REGEX.sub(self._parse_lists, text)
          HASHTAG_REGEX.sub(self._parse_tags, text)
          return None
docs: Parse a Tweet without generating HTML.