total(values: List<Int>) (answer: Int) pure { answer = sum(values) }

asyncTotal(values: List<Int>, delayed: false) (answer: Int) { answer = total(values) }
asyncTotal(values: List<Int>, delayed: true) (answer: Int) {
  dever.task.sleep(0)
  answer = total(values)
}

syncPair(values: List<Int>) (answer: Int) {
  first_task = run(total(values))
  second_task = run(total(values))
  first_value = wait(first_task)
  second_value = wait(second_task)
  answer = first_value + second_value
}

asyncPair(values: List<Int>) (answer: Int) {
  first_task = run(asyncTotal(values, false))
  second_task = run(asyncTotal(values, false))
  first_value = wait(first_task)
  second_value = wait(second_task)
  answer = first_value + second_value
}

parallelSum(values: List<Int>) (answer: Int) { answer = parallel(total(values)) }

blockedTotal(values: List<Int>) (answer: Int) {
  dever.time.sleep(0)
  answer = total(values)
}

blockingSum(values: List<Int>) (answer: Int) { answer = blocking(blockedTotal(values)) }

cancel() (answer: Int) {
  stop(run(dever.task.sleep(60000)))
  answer = 1
}

timer() (answer: Int) { dever.task.sleep(0)
  answer = 1 }