public async Task<SuitabilityModel> GetOne(SuitabilityEntity filter)
        {
            var model = filter as SuitabilityModel;
            var suitability = dal.GetOne(model);
            if (suitability == null && SuitabilityData.Config.FailoverEnabled)
            {
                var proxy = new SuitabilityProxy();
                var s = (await proxy.GetOneAsync(filter)) as SuitabilityModel;
                if (s != null)
                {
                    UpdateCache(s);
                    suitability = s;
                    ConsoleLogger.LogWarning($"[CLSuitability] Possible subscription problem, as suitability could not be found on cache locally but was fetched via proxy");
                }
            }
            return suitability;
        }

        ...

        public async Task<SuitabilityEntity> GetOneAsync(SuitabilityEntity filter)
        {
            prx.SetArguments(filter);
            return (await prx.ExecuteResultAsync("GetOne")).Data as SuitabilityEntity;
        }