static IEnumerable <ImportedSpecialBinaryInfo> ToBiosCandidateList(GameProgramInfo gameProgramInfo)
 => DatastoreService.ImportedSpecialBinaryInfo
 .Where(sbi => gameProgramInfo.MachineType == MachineType.A7800NTSC &&
        (sbi.Type == SpecialBinaryType.Bios7800Ntsc || sbi.Type == SpecialBinaryType.Bios7800NtscAlternate) ||
        gameProgramInfo.MachineType == MachineType.A7800PAL &&
        sbi.Type == SpecialBinaryType.Bios7800Pal);
 static Bios7800 GetBios7800(GameProgramInfo gameProgramInfo)
 => PickFirstBios7800(ToBiosCandidateList(gameProgramInfo));