:wave: Is it possible to use <@OptIn> (i.e `@OptIn...

# announcements

[scottyab]

👋 Is it possible to use @OptIn (i.e @OptIn(kotlinx.coroutines.ExperimentalCoroutinesApi::class) for an entire package and sub packages? I’m getting a bunch of warnings in my tests as I’m using experimental runBlockingTest{} and I’d love to squash all the warnings in a single place rather than per class annotation.

[udalov]

You can either annotate each file with @file:OptIn(...), or add the command line argument -Xopt-in=... to opt in for the entire module (add it to kotlinOptions.freeCompilerArgs in Gradle). There’s no way to opt in at a package level yet.