code: def clear(self, apply_to='all'):
          
          url = self.build_url(self._endpoints.get('clear_range'))
          return bool(self.session.post(url, data={'applyTo': apply_to.capitalize()}))
docs: Clear range values, format, fill, border, etc.
          :param str apply_to: Optional. Determines the type of clear action.
           The possible values are: all, formats, contents.