package_local class _Dummy_ {
    package_local class Lambda {
        package_local fun example(): void {
            doJob({ arg: String ->
                arg + arg
            }, "Mary")
        }

        package_local fun doJob(job: Job, arg: String): void {
            System.out.println(job.doJob(arg))
        }
    }

    package_local abstract static interface Job {
        public abstract fun doJob(arg: String): String
    }
}