@class NSString; @protocol UIVectorOperatable; @interface UIViewFrictionBounceAnimation : NSObject <UIIntervalAnimating> { id _stableTarget; id _intermediate; id _current; id _epsilon; double _deceleration; double _bounce; } @property (retain, nonatomic) id<UIVectorOperatable> targetValue; @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; - (BOOL)isStable; - (id)velocity; - (id)stepWithDelta:(double)a0; - (void)setVelocity:(id)a0; - (void).cxx_destruct; - (id)initWithCurrent:(id)a0 target:(id)a1; - (id)updatedTarget; @end