Change generated getter/setter methods

Kotlin does something strange with boolean types. If you have a boolean called isCanceled, the setter will be setCanceled(boolean) and the getter will be isCanceled(). Override this naming convention:

var isCanceled = false
  @JvmName("setIsCanceled")
  get

Assign method to variable and pass as argument

val onUpdated = {
  doSomething()
  doSomethingElse()
}

// pass as an argument
showTheNextStep(onUpdated)

// fire method
onUpdated()