Safe to add "extends HiveObject" later?

I have an older project with users and a Hive database. I realized that I forgot to add "extends HiveObject" to one object when I wanted to access the key.

Is it safe to add "extends HiveObject" now?

The issue mentions an older project, existing users, a Hive database, and an object that lacks `extends HiveObject`. Start by checking the HiveObject guidance for adding it to existing objects, then document the compatibility answer and any conditions needed to access the key safely.

Written by the indexing model from the issue text.