      - Parameter index: Int
      - Parameter mediaBrowser: MediaBrowser
      */
-    func mediaDid(selected: Bool, at index: Int, in mediaBrowser: MediaBrowser)
+    @objc optional func mediaDid(selected: Bool, at index: Int, in mediaBrowser: MediaBrowser)
     
     
     /**

     - Parameter mediaBrowser: MediaBrowser
     - Parameter index: Int
     */
    func captionView(for mediaBrowser: MediaBrowser, at index: Int) -> MediaCaptionView?
    
    /**
     Optional protocol when need callback

     
     - Parameter mediaBrowser: MediaBrowser
     */
    @objc optional func mediaBrowserDidFinishModalPresentation(mediaBrowser: MediaBrowser)

    /**
     Optional protocol to show thumbnail. return media.
