How to Load audiofile into MMessage ios 10?

Question

so I been playing around the new xcode 8 beta and I'm able to load an image into the .image property but I had not succeed to load an audio file with the .mediaFileURL property. here's my

var message = MSMessage() 
var template = MSMessageTemplateLayout()

viewDidLoad() {    
     if let filePath2 =
     Bundle.main().pathForResource("synth", ofType: "wav") {
         let fileUrl = NSURL(string: filePath2)
         let URL2 = fileUrl as! URL
         template.mediaFileURL = URL2
     }

     message.layout = template

     guard let conversation = activeConversation else {

     fatalError("Expected a conversation") }  conversation.insert(message,
         localizedChangeDescription: nil) { error in
         if let error = error {
             print(error)
         }
     }
}

Answer 1

According to bug reporter I should use the insertAttachment API to insert MP3, WAV and M4a.

conversation.insertAttachment(fileUrl, withAlternateFilename: "fileAudio") { error in
        if let error = error {
            print(error)
        }