Returns a Range instance from whitin this worksheet
        :param str address: Optional, the range address you want
        :return: a Range instance

def get_range(self, address=None):
        """
        Returns a Range instance from whitin this worksheet
        :param str address: Optional, the range address you want
        :return: a Range instance
        """
        url = self.build_url(self._endpoints.get('get_range'))
        if address is not None:
            url = "{}(address='{}')".format(url, address)
        response = self.session.get(url)
        if not response:
            return None
        return self.range_constructor(parent=self, **{self._cloud_data_key: response.json()})