@class NSString, NSValue; @interface _UIViewPropertyAnimationUpdate : NSObject @property (readonly, nonatomic, getter=isImplicit) BOOL implicit; @property (readonly, nonatomic) NSString *propertyName; @property (readonly, nonatomic, getter=isAdditive) BOOL additive; @property (retain, nonatomic) NSValue *fromValue; @property (retain, nonatomic) NSValue *toValue; @property (nonatomic) double startTime; @property (nonatomic) double duration; @property (nonatomic) double delay; - (id)init; - (void).cxx_destruct; - (id)initWithPropertyName:(id)a0 implicit:(BOOL)a1 additive:(BOOL)a2; @end