``` fun foo(a:Int, lam: (Int)->Unit): Unit { ...

# announcements

[yanlusu]

fun foo(a:Int, lam: (Int)->Unit): Unit {
    println(a)
    return lam.invoke(a)
}
fun main(args: Array<String>) {
    foo(10){
        return
    }
}

this return is not valid
and this is valid:

foo(10) fool@{
        return@fool
    }