@class NSFileHandle;
@interface NSPipe : NSObject
@property (readonly, retain) NSFileHandle *fileHandleForReading;
@property (readonly, retain) NSFileHandle *fileHandleForWriting;
+ (id)allocWithZone:(struct _NSZone { } *)a0;
+ (id)pipe;
- (id)init;
- (void)_closeOnDealloc;
@end