public async Task <ActionResult <List <ModelEquity> > > GetModelByDate(Guid modelId, DateTime date, int versionNumber)
        {
            ManagerResult <List <ModelEquity> > mrME = await umMgr.GetModelEquityListByDate(modelId, date, versionNumber);

            if (!mrME.Success)
            {
                return(BadRequest(mrME));
            }

            return(Ok(mrME.Entity));
        }