public IEnumerable <RecommendationsByScenarioReduceResult> GetCampaigns(Guid scenarioId)
        {
            lock (_session)
            {
                var bb = _session.GetAllWithWait <RecommendationsByScenarioReduceResult>(
                    _ => _.ScenarioId == scenarioId, "RecommendationsByScenario", true,
                    s => s.ScenarioId == Guid.Empty);

                return(bb);
            }
        }