title: Meaning of symbol :+: in Scala?
body: <p>What does the symbol :+: mean in Scala Programming language?</p>
  
  <pre><code>  object Devices {
    private[endpoints] def endpoints(myService: MyService[Future], pService: PService[Future]) =
      "devices" / (
        banDevice(myService, pService) :+:
        unbanDevice(myService, pService)
      )
  </code></pre>
  
  <p>This is the code snippet. I'm using finagle library.</p>
  
  <ul>
  <li>I've read that scala can have function names as symbols. Is this an example of that?</li>
  <li>Where do I find the defention of this finagle defined methods?</li>
  <li>Is it possible to override these methods?</li>
  </ul>