Gets the storyboard data for an item. The storyboard consists of thumbnail urls and dimensions; for documents the storyboard contains all pages and for videos the storyboard contains keyframes whose spacing depends on the video's length.
Optional
Gets the storyboard data for an item. The storyboard consists of thumbnail urls and dimensions; for documents the storyboard contains all pages and for videos the storyboard contains keyframes whose spacing depends on the video's length.