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I have a class on `main` branch, which implementation is under development and should not be yet used by other teams. What is the most suitable annotation for this?
I was thinking about `org.jetbrains.annotations.ApiStatus.Experimental`, but the doc says it's more suitable for API that might changed and not where the implementation is still "under construction".

Looks like the best method is to create my own custom `@MyExperimentalApi` annotation:
<https://kotlinlang.org/docs/opt-in-requirements.html#require-opt-in-for-api>