code: func Messages(
  	bot reddit.Bot,
  	kill <-chan bool,
  	errs chan<- error,
  ) (
  	<-chan *reddit.Message,
  	error,
  ) {
  	onlyMessages := make(chan *reddit.Message)
  
  	messages, err := inboxStream(bot, kill, errs, "inbox")
  	go func() {
  		for m := range messages {
  			if !m.WasComment {
  				onlyMessages <- m
  			}
  		}
  	}()
  
  	return onlyMessages, err
  }
docs: // Messages returns a stream of messages sent to the bot's inbox. It consumes
  // one interval of the handle.