Question PurchaseFailureReason vs PurchaseFailureDescription

Hello everyone and thank you so much for reading my post!
I'm trying to implement the PurchaseFailureReason for my in-app purchase. However, in the Inspector the function to implement is called PurchaseFailureDescription. I have the latest IAP-package. I have

using UnityEngine.Purchasing

at the top of my code. Even after I implement PurchaseFailureReason as such:

Code (CSharp):

1. public void purchaseFailed(Product product, PurchaseFailureReason p)
2.     {
3.         purchaseFailedText.SetActive(true);
4.     }

the function doesn't show up in the inspector, and I believe its because PurchaseFailureReason doesn't match PurchaseFailureDescription in the inspector. As you can see in the screenshot I've attached, in the Inspector the function which is triggered by a failed purchase takes the parameters Product and PurchaseFailureDesription. But in the Unity docs this doesn't even exist - what exists is PurchaseFailureReason. What can I do to solve this issue?

 

Nevermind, I've solved my problem. I needed to add

using UnityEngine.Purchasing.Extension;

to the top of my code