docs: def request(self, service, data):
          """
          Makes a call to TinyLetter's __svcbus__ endpoint.
          """
          _res = self._request(service, data)
          res = _res.json()[0][0]
          if res["success"] == True:
              return res["result"]
          else:
              err_msg = res["errmsg"]
              raise Exception("Request not successful: '{0}'".format(err_msg))