public async Task <List <AccountFlagType> > GetNotSetListAsync(Guid accountId, CancellationToken ct) { var allFlags = EnumsExtensions.GetValues <AccountFlagType>(); var setFlags = await _storage.AccountFlags .AsNoTracking() .Where(x => x.AccountId == accountId) .Select(x => x.Type) .ToListAsync(ct); return(allFlags .Except(setFlags) .ToList()); }