@class NSData, BRCChecksummingOutputStream;
@interface BRCPackageChecksummer : NSObject {
BRCChecksummingOutputStream *_stream;
}
@property (readonly, nonatomic) NSData *signature;
- (id)init;
- (void)done;
- (void).cxx_destruct;
- (BOOL)addItem:(id)a0 error:(id *)a1;
@end