ProGuard to obfuscate files

[jamal]

How can I use cordova-plugin-proguard to obfuscate js files in my Android project?

The Google Play console says: The ProGuard tool shrinks, optimizes, and obfuscates your code by removing unused code and renaming classes, fields, and methods with semantically obscure names.

I checked the documentation, and it mentions build.gradle file, but the Monaca project does not have this file.

Please advise on the proper way to activate and use this plugin.

Thanks!