#import @protocol LegacyHTTPRequestOperation - (void)setOutputStream:(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