System/Library/PrivateFrameworks/TextInputUI.framework
_TUIPathPoint.h
@interface _TUIPathPoint : NSObject
@property (nonatomic, getter=isSentinelPoint) BOOL sentinelPoint;
@property (nonatomic) struct CGPoint { double x; double y; } point;
@property (nonatomic) double force;
@property (nonatomic) double relativeTime;
@property (nonatomic) double absoluteTime;
@property (nonatomic) double decay;
@property (nonatomic) double length;
- (id)description;
@end