code: def get_range(self, address=None):
          
          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()})
docs: Returns a Range instance from whitin this worksheet
          :param str address: Optional, the range address you want
          :return: a Range instance