docs: def _skip_saveframe(self, lexer):
          """Skip entire saveframe - keep emitting tokens until the end of saveframe.
  
          :param lexer: instance of the lexical analyzer class.
          :type lexer: :class:`~nmrstarlib.bmrblex.bmrblex`
          :return: None
          :rtype: :py:obj:`None`
          """
          token = u""
          while token != u"save_":
              token = next(lexer)