@class NSString, NSData; @interface MKMessageAttachment : NSObject @property (nonatomic) long long transferState; @property (copy, nonatomic) NSString *ID; @property (copy, nonatomic) NSString *contentType; @property (copy, nonatomic) NSString *UUID; @property (copy, nonatomic) NSString *uniformTypeIdentifier; @property (copy, nonatomic) NSString *filename; @property (retain, nonatomic) NSData *data; - (void)write; - (void).cxx_destruct; - (id)initWithID:(id)a0 contentType:(id)a1 base64Data:(id)a2; @end