@class MFSpringAnimationDelegate; @interface MFSpringAnimation : CASpringAnimation @property (retain, nonatomic) MFSpringAnimationDelegate *delegate; + (id)springAnimationWithKeyPath:(id)a0 fromValue:(id)a1 toValue:(id)a2; - (id)init; - (void)addCompletionBlock:(id /* block */)a0; @end