How to update MPNowPlayingInfoCenter in Swift?

In objective c, I've been using code like this to update MPNowPlayingInfoCenter:

[[MPNowPlayingInfoCenter defaultCenter] setNowPlayingInfo: 
    @{ MPMediaItemPropertyArtist : @"Artist!",
        MPMediaItemPropertyTitle : @"Title! }];

But in Swift, it doesn't seem like the function "setNowPlayingInfo" is recognized:

MPNowPlayingInfoCenter.defaultCenter()....  // Can't identify 'setNowPlayingInfo()'

Is there anything I'm missing?