         }
     }
     
-    public func downloadString(success: ((content: String) -> Void)?, failure: ((error: NSError) -> Void)?) {
+    public func downloadStringWithSuccess(success: ((content: String) -> Void)?, failure: ((error: NSError) -> Void)?) {
         if let attachmentID = self.attachmentID {
             MMAttachmentService.download(attachmentID, success: { URL in
                 if let data = NSData(contentsOfURL: URL), content = NSString(data: data, encoding: NSUTF8StringEncoding) as? String {

        }
    }
    
    public func downloadData(success: ((data: NSData) -> Void)?, failure: ((error: NSError) -> Void)?) {
        if let attachmentID = self.attachmentID {
            MMAttachmentService.download(attachmentID, success: { URL in
                self.data = NSData(contentsOfURL: URL)

        return false
    }
    
    public func downloadToFile(fileURL: NSURL, success: (Void -> Void)?, failure: ((error: NSError) -> Void)?) {
        if let attachmentID = self.attachmentID {
            MMAttachmentService.download(attachmentID, success: { URL in
                do {
                    try NSFileManager.defaultManager().moveItemAtURL(URL, toURL: fileURL)
                } catch let error as NSError {
                    failure?(error: error)
                }
                success?()
            }) { error in
                failure?(error: error)
            }
        }
    }
    
    public func downloadFileWithSuccess(success: ((fileURL: NSURL) -> Void)?, failure: ((error: NSError) -> Void)?) {
        if let attachmentID = self.attachmentID {
            MMAttachmentService.download(attachmentID, success: { URL in
                self.fileURL = URL
