Monthly and Annual subscription in two buttons - Swift

I use swift code with storyboard , and I have in my code subscription button  , but this button show only Annual subscription , I have monthly and yearly product Id in my entitlement , but it’s always show yearly price after I press that button . I want make two or more buttons one for Monthly , Yearly and also Lifetime if possible . But I don’t know how .. This my code , and the : fullappaccess is the Identifier for my entitlement in revenuecat

Swift Code :

@objc func goPremiumButtonTapped(sender:UIButton) {



    

        

        let package = self.packagesAvailableForPurchase[sender.tag]

        

        Purchases.shared.purchasePackage(package) { (transaction, purchaserInfo, error, userCancelled) in

          

            if purchaserInfo?.entitlements.all["fullappaccess"]?.isActive == true {

                self.dismiss(animated: true, completion: nil)

            }

        }

        hapticFeedback()

    }