#import @protocol LegacyHTTPRequestOperation @property (nonatomic, retain) NSOutputStream *outputStream; - (void)setCompletionBlockWithSuccess:(void (^)(NSOperation *operation, id responseObject))success failure:(void (^)(NSOperation *operation, NSError *error))failure; - (void)setDownloadProgressBlock:(void (^)(NSInteger bytesRead, NSInteger totalBytesRead, NSInteger totalBytesExpectedToRead))block; @end