Flutter Internationalization: How to break down .arb files into separate files

Question

I'm following the Flutter Internationalizing Flutter apps, and I'm not seeing a way to break down the .arb files. Is it possible to have my app_en.arb? It would be much better if I could break down the content like this

buttons_en.arb
messages_en.arb

And so forth

Answer 1

I had also searched for this, but did not come up with any results. But what helped me was to write comments and to highlight them with an extension. It now looks like this and that is in my opinion also okay:

See this guide if you want to implement it: https://medium.com/codex/flutter-writing-comments-in-arb-files-8d113f10e4b9