[BUG] TransactionEncrypter.java Class is visible after applying the Proguard

[sanatshukla-simformsolutions]

Summary

Why I am able to see the stripe3ds2/security/TransactionEncrypter.java file directly after applying the proguard. Is there any keep rule from your SDK? I am not able to find it from Github repo.

Code to reproduce

I have added only this rules to keep:
-keep class com.stripe.model.Token {;;}
-keep class com.stripe.model.Card.* {;;}
-keep class com.stripe.android.model.Card {;;}

Android version

It doesn't matter as I am checking this into the Android Studio after generating the signed build.

Dependency Versions

implementation 'com.stripe:stripe-android:21.2.0'

Please check the attached screenshot. Also I am not able to see any changes regarding to the proguard into the Pull request and changelogs of mentioned version (21.2.0). Please let me know if I am missing anything.