@interface FBKAttachmentViewingControllerSelector : NSObject + (id)_opaqueVCWithItem:(id)a0; + (id)controllerForAttachment:(id)a0; + (id)controllerForItem:(id)a0; + (id)controllerForUrl:(id)a0; + (id)controllerForUrl:(id)a0 useFallback:(BOOL)a1; + (BOOL)fallbackToOpaqueViewer; @end