if (Platform.isIOS) {
    //get all Entitlement
    var purchaserInfo = await Purchases.getCustomerInfo();
    var entitlements = purchaserInfo.entitlements.all;

    log("entitlements $entitlements");

    var result = await Purchases.presentPaywallIfNeeded(
        entitlements.values.first.identifier);

    log("result $result");

    return;
  }