@interface FPNSURLBitVectorForBounce : NSObject { struct __CFBitVector { } *_vector; } @property (readonly, nonatomic) int bitCount; - (id)init; - (id)findNextAvailableBounceNumber; - (id)findNextAvailableBounceNumberFromIndex:(int)a0; - (BOOL)foundAllAvailableBounceNumbers; - (void)markBounceNumberAsFound:(id)a0; @end