public AvatarsService(
            IStorageProvider storageProvider,
            IContentManager contentManager,
            ISiteService siteService,
            IServiceValidationDictionary<AvatarsServiceValidationKey> validationDictionary)
        {
            _storageProvider = storageProvider;
            _contentManager = contentManager;
            _siteService = siteService;
            ValidationDictionary = validationDictionary;

            T = NullLocalizer.Instance;
        }
        public AvatarsService(
            IStorageProvider storageProvider,
            IContentManager contentManager,
            ISiteService siteService,
            IServiceValidationDictionary <AvatarsServiceValidationKey> validationDictionary)
        {
            _storageProvider     = storageProvider;
            _contentManager      = contentManager;
            _siteService         = siteService;
            ValidationDictionary = validationDictionary;

            T = NullLocalizer.Instance;
        }