hasThumbnail

Whether the version has a thumbnail image available. Thumbnails for versions from +getNonlocalVersionsOfItemAtURL:completionHandler: may not immediately be available. As soon as it becomes available, this property will change from NO to YES. You can use KVO to be notified of this change. If a thumbnail is available, you can access it using NSURLThumbnailKey or NSURLThumbnailDictionaryKey.

var hasThumbnail: Bool { get }