@interface _CPUILiveTrackView : UIView
@property (nonatomic) double erasedPercentage;
+ (Class)layerClass;
- (id)initWithFrame:(struct CGRect { struct CGPoint { double x0; double x1; } x0; struct CGSize { double x0; double x1; } x1; })a0;
- (void)_updateGradient;
@end