@class NSArray; @interface CAAnimationGroup : CAAnimation @property (copy) NSArray *animations; - (unsigned int)_propertyFlagsForLayer:(id)a0; - (void)CA_prepareRenderValue; - (void)applyForTime:(double)a0 presentationObject:(id)a1 modelObject:(id)a2; - (void *)_copyRenderAnimationForLayer:(id)a0; - (void)setDefaultDuration:(double)a0; @end