A modern programming language that makes developers happier.

kotlinlang

Is there a way to introduce a library-specific experimental marker annotation that serves as an alias to a set of other experimental annotations? Let’s say the library uses API marked with `@ObsoleteCoroutinesApi` and `@ExperimentalCoroutinesApi` and I don’t want library users to opt into using any of those everywhere in their code, just in the scope of my library. I imagine it has to be something like this:
```
@Experimental
@UseExperimental(ObsoleteCoroutinesApi::class, ExperimentalCoroutinesApi::class)
annotation class MyExperimental
```
but the IDE won’t allow me to use `@UseExperimental(MyExperimental::class)` in place of e.g. `@UseExperimental(ObsoleteCoroutinesApi::class)` in the library code. Is there a proper way to set it up? Does this approach make sense?

Alternatively, you can opt-in for the whole library from Gradle.

Something like this?
```
compileKotlin {
    kotlinOptions {
        freeCompilerArgs += "-Xuse-experimental=ObsoleteCoroutinesApi"
        freeCompilerArgs += "-Xuse-experimental=ExperimentalCoroutinesApi"
        freeCompilerArgs += "-Xexperimental=MyExperimental"
    }
}
```