error package MediaLoadRequestData does not exist Chromecast Codelab error

Question

I am following Google Codelab to setup a Chromecast sender app. In section 6 -> casting video content They provide me following code.

https://developers.google.com/cast/codelabs/cast-videos-android#5

To build MediaInfo object to model my item, which is going to be displayed they provide buildMediaInfo()

    private MediaInfo buildMediaInfo() {
        MediaMetadata movieMetadata = new MediaMetadata(MediaMetadata.MEDIA_TYPE_MOVIE);

        movieMetadata.putString(MediaMetadata.KEY_SUBTITLE, mSelectedMedia.getStudio());
        movieMetadata.putString(MediaMetadata.KEY_TITLE, mSelectedMedia.getTitle());
        movieMetadata.addImage(new WebImage(Uri.parse(mSelectedMedia.getImage(0))));
        movieMetadata.addImage(new WebImage(Uri.parse(mSelectedMedia.getImage(1))));

        return new MediaInfo.Builder(mSelectedMedia.getUrl())
                .setStreamType(MediaInfo.STREAM_TYPE_BUFFERED)
                .setContentType("videos/mp4")
                .setMetadata(movieMetadata)
                .setStreamDuration(mSelectedMedia.getDuration() * 1000)
                .build();
    }

and also while establishing client from casting session they give loadRemoteMedia()

private void loadRemoteMedia(int position, boolean autoPlay) {
    if (mCastSession == null) {
        return;
    }
    RemoteMediaClient remoteMediaClient = mCastSession.getRemoteMediaClient();
    if (remoteMediaClient == null) {
        return;
    }
    remoteMediaClient.load(new MediaLoadRequestData.Builder()
                .setMediaInfo(buildMediaInfo())
                .setAutoplay(autoPlay)
                .setCurrentTime(position).build());
}

However AS doesn't see (new MediaLoadRequestData.Builder() and building project gives me an error. What is the issue?