supervisorScope {
  job1 = async { throw ... }
  job2 = async { delay(10000) }
  
  while (true) {
    delay(1000)
    job1.isComplete  <-- stays false until after the 10 seconds are up
  }
}

timeCallable

/** Times an asynchronous [function] and returns it's result [T]. */
suspend fun <T> Timer.asyncRecordCallable(func: suspend () -> T): T {
    return this.recordCallable { runBlocking { func() } }
}