wrapperWithArg.scala

  def logged[K, T](f: (K) => T)(arg: K): T = {
    // log arg
    f(arg)
    // log arg
  }

  def someFunction(value: Integer): Integer = {
    Integer.valueOf(value * 2)
  }

  def theExecution() {
    // here we go: the 'execution' object has exactly the same type as 'someFunction'
    val execution = logged(someFunction) _
    execution(2)
  }