@class NSString, NSMutableDictionary, NSCache; @interface MFComposeAttachmentDataProvider : NSObject <MFAttachmentDataProviderProtocol> { NSMutableDictionary *_attachmentsData; NSCache *_attachmentsPlaceholderData; NSMutableDictionary *_attachmentsPasteboardData; NSMutableDictionary *_attachmentsUndoData; } @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; - (void)dealloc; - (id)_dataForAttachment:(id)a0; - (void)addData:(id)a0 forContentID:(id)a1; - (id)dataForContentID:(id)a0; - (void)fetchDataForAttachment:(id)a0 consumer:(id)a1 progress:(id)a2 completion:(id /* block */)a3; - (id)initWithData:(id)a0 forContentID:(id)a1; - (id)messageForAttachment:(id)a0; - (id)rawDataForContentID:(id)a0; - (void)recordPasteboardDataForAttachments:(id)a0; - (void)recordUndoDataForAttachments:(id)a0; - (void)removeDataForAttachment:(id)a0; - (id)storageLocationForAttachment:(id)a0 withMessage:(id)a1; - (id)fetchLocalDataForAttachment:(id)a0; @end