System/Library/Frameworks/Network.framework
NWStreamConnection.h
@interface NWStreamConnection : NWConnection
+ (id)connectionWithConnectedSocket:(int)a0;
- (BOOL)readDataWithMinimumLength:(unsigned long long)a0 maximumLength:(unsigned long long)a1 completionHandler:(id /* block */)a2;
- (BOOL)writeCloseWithCompletionHandler:(id /* block */)a0;
- (BOOL)writeData:(id)a0 completionHandler:(id /* block */)a1;
@end