//private readonly IWebHelper _webHelper;

        public CheckoutAttributeFormatter(
            //IWorkContext workContext,
            CheckoutAttributeDomainService checkoutAttributeService,
            ICheckoutAttributeParser checkoutAttributeParser,
            CurrencyDomainService currencyService,
            TaxDomainService taxService,
            IPriceFormatter priceFormatter,
            DownloadDomainService downloadService
            //IWebHelper webHelper
            )
        {
            // this._workContext = workContext;
            this._checkoutAttributeService = checkoutAttributeService;
            this._checkoutAttributeParser  = checkoutAttributeParser;
            this._currencyService          = currencyService;
            this._taxService      = taxService;
            this._priceFormatter  = priceFormatter;
            this._downloadService = downloadService;
            //this._webHelper = webHelper;
        }
 public CheckoutAttributeParser(CheckoutAttributeDomainService checkoutAttributeService)
 {
     this._checkoutAttributeService = checkoutAttributeService;
 }