public CharacteristicsLibrary LoadCharacteristics(string name)
        {
            var filename = InstalledFileLocation(name);

            if (!File.Exists(filename))
            {
                return(new CharacteristicsLibrary());
            }
            var lib = CharacteristicsLibrary.Load(filename);

            return(lib);
        }
        public CharacteristicsLibrary LoadCharacteristics(string name)
        {
            var filename = InstalledFileLocation(name);

            if (!File.Exists(filename))
            {
                return(new CharacteristicsLibrary());
            }
            var fsSvc = services.RequireService <IFileSystemService>();
            var lib   = CharacteristicsLibrary.Load(filename, fsSvc);

            return(lib);
        }