0nko

{
  "version": 2147483647,
  "messages": [
    {
      "id": "fire_tabs_promo",
      "content": {
        "messageType": "big_two_action",
        "titleText": "Try Fire Tabs",
        "descriptionText": "Browse without saving local history or sign in to sites with a different account.",
        "placeholder": "Announce",

0nko

fun main(args: Array<String>) {
    val duck = Duck()
    duck.talked += { said -> println("Duck: $said") }

    duck.poke()
}

class Event<T>(val eventHandler: EventHandler<T>) {
    operator fun plusAssign(observer: (T) -> Unit) { eventHandler.observers.add(observer) }
    operator fun minusAssign(observer: (T) -> Unit) { eventHandler.observers.remove(observer) }