@interface CKQuickLookThumbnailMediaObject : CKMediaObject + (id)UTITypes; + (Class)__ck_attachmentItemClass; - (id)attachmentSummary:(unsigned long long)a0; - (id)diskCachedThumbnailForOrientation:(char)a0; - (BOOL)isPreviewable; - (id)previewForWidth:(double)a0 orientation:(char)a1; - (BOOL)shouldSuppressPreview; @end