private byte[] GetExportContent(ReportModel model, IReportService service)
 {
     var cards = CardHelper.GetCards(model, TrelloInstance).ToList();
     var lists = TrelloInstance.Lists.ForBoard(new BoardId(model.BoardId)).OrderBy(l => l.Pos).ToList();
     var result = service.GenerateCardReports(cards, lists, model.UserIds);
     return result;
 }