// Which of these is a better style? Is there much of a difference?

def createMicrosoftAudio0(utterance: Utterance, svc: MsSynthSvc = MicrosoftSpeech.Synthesize): Future[SynthesizedSpeech] = {
  if(!utterance.text.isDefined) return Future.exception(new UtteranceTextNotFound(utterance))
  val req = SynthesizeRequest(utterance.convo.id, utterance.text.get)
  for {
    resp <- svc(req)
  } yield SynthesizedSpeed(resp._1, resp._2)
}

def createMicrosoftAudio1(utterance: Utterance, svc: MsSynthSvc = MicrosoftSpeech.Synthesize): Future[SynthesizedSpeech] = {
  if(utterance.emptyText) return Future.exception(new UtteranceTextNotFound(utterance))
  val req = SynthesizeRequest.fromUtterance(utterance)
  svc(req).map(SynthesizedSpeech)
}