README Code Snippet Not Working

[Dan Levy]

The following piece of code appears to no longer work:

NYTPhotosViewController *photosViewController = [[NYTPhotosViewController alloc] initWithPhotos:photos];
[self presentViewController:photosViewController animated:YES completion:nil];

I am just now upgrading from an older version of NYTPhotoViewer and I use the equivalent piece of Swift code:

var photosViewController = NYTPhotosViewController(photos: photos)
present(photosViewController, animated: true)

It appears that the argument photos: does not exist. Can someone please advise me on how to upgrade my code to the current version?