nativeInvoke
fun Int.foo(a: String): Int = noImpl

native
class Bar(b: Int, c: Char) {
    nativeInvoke
    fun baz(d: Int) {}
}

native
object Obj {
    nativeInvoke
    fun test1(e: String) {}

    object Nested {
        nativeInvoke
        fun test2(g: Int) {}
    }
}