Converting .apk into .aab

Question

I created a mobile application using kivy framework, then I converted (.py+.kv) into .apk using buildozer, then I found out that google console accept only .abb. I need to convert apk or py to abb

bundletools does not work

java -jar bundletool-all-1.15.6.jar build-bundle --modules=~/key_store_0/myapp-0.1-arm64-v8a_armeabi-v7a-debug.apk --output=~/key_store_0/app_bundle.aab