docs: def parseRest(self, response):
          """
          Parse a REST response. If the response contains an error field, we will
          raise it as an exception.
          """
          body = json.loads(response)
  
          try:
              error = body['error']['description']
              code = body['error']['code']
          except Exception:
              return body['data']
          else:
              raise ClickatellError(error, code);