configureCatContent.swift

func configureCatContentFor(purchaserInfo: PurchaserInfo?) {    
    if let purchaserInfo = purchaserInfo {
        if purchaserInfo.activeEntitlements.contains("pro_cat") {

            // ...
            // ...
            // ...

        } else {

            // ...
            // ...

            // Check if we should show a Subscription Offer
            // and display the promo upsell after 2 seconds

            if #available(iOS 12.2, *) {
                if shouldShowSubscriptionOffer(purchaserInfo) {
                    DispatchQueue.main.asyncAfter(deadline: .now() + .seconds(2)) {
                        self.showPromoUpsell()
                    }
                }
            }

        }
    }
}