PurchasingService.getProductData(java.util.Set).PurchasingService.getProductData(java.util.Set).ProductPromotion object contains a list of such promotion plansPurchasingService.purchase(String).PurchasingService.purchase(String).PurchasingService.getPurchaseUpdates(boolean).PurchasingService.getPurchaseUpdates(boolean).PurchasingListener and register an
instance of their implementation with
PurchasingService.registerListener(android.content.Context, PurchasingListener)
before using other APIs in the PurchasingService.