@interface ReaderFormatActivity : TabDocumentActivity - (id)activityType; - (id)activityTitle; - (void)performActivityWithTabDocument:(id)a0; - (id)systemImageNameWithTabDocument:(id)a0; - (id)_navigationControllerWithTabDocument:(id)a0; - (BOOL)canPerformWithTabDocument:(id)a0; - (id)embeddedActivityViewControllerWithTabDocument:(id)a0; @end