"@amazon-devices/keplerscript-appstore-iap-lib": "~2.12.13",
      "@amazon-devices/package-manager-lib": "~1.0.1767254401"

   [wants]
   [[wants.service]]
   id = "com.amazon.iap.core.service"
   [[wants.module]]
   id = "/com.amazon.iap.core@IIAPCoreUI"

   [needs]
   [[needs.module]]
   id = "/com.amazon.kepler.appstore.iap.purchase.core@IAppstoreIAPPurchaseCoreService"

public purchase(purchaseRequestParams: IAPTypes.PurchaseParams): Promise<PurchaseResponse>;

const triggerPurchase = (sku?: string): void => {
      Logger.debug(`Item ${sku} clicked`);
      PurchasingService.purchase({ sku: sku })
            .then((res) => {
               // Handle purchase response.
            })
            .then((user) => {
               // perform operation for user if required.
            })
            .catch((err) => {
               // Handle exceptions if any
            });

      return;
}

useEffect(() => { // Validate product SKUs before rendering product screen
      // ...

      // Calling getProductData when the component is rendered.
      PurchasingService.getProductData({ skus: Constants.SKUS })
         .then((res) => {
            const [productData, unavailableSkus] = handleProductDataResponse(res);
         })
         .catch((err) => {
            Logger.error(`Exception while calling getProductData ${err}`);
         });
   }, []);