code: public List<Notification> getNotifications(BigInteger alertId) throws IOException, TokenExpiredException {
          String requestUrl = RESOURCE + "/" + alertId.toString() + "/notifications";
          ArgusResponse response = getClient().executeHttpRequest(ArgusHttpClient.RequestType.GET, requestUrl, null);
  
          assertValidResponse(response, requestUrl);
          return fromJson(response.getResult(), new TypeReference<List<Notification>>() { });
      }
docs: Returns all notifications for the given alert ID.
  
  @param   alertId  The alert ID.
  
  @return  The list of notifications for the alert. Will never be null, but may be empty.
  
  @throws  IOException  If the server cannot be reached.
  @throws  TokenExpiredException   If the token sent along with the request has expired