Call at application starting time, after Firebase/Amplitude initialization.
PurchaseTrackingHelper.init(Context context, String firebaseRemoteUrl, String expCohortString, String revenueCatApiKey)
Call in the onPurchasesUpdated
callback of billing client.
PurchaseTrackingHelper.init(Context context, String firebaseRemoteUrl, String expCohortString, String revenueCatApiKey)