I implemented Inapp purchases using Play Billing Library. I am storing the Purchase Object in Firebase Firestore.
https://developer.android.com/reference/com/android/billingclient/api/Purchase.html
in debug build, the works fine. But release build, the app throws "No properties to serialize found on class com.android.billingclient.api.h"
I know, it due to proguard. what rule should i add?
or there any alternative solution?