@class NSArray; @interface ARCoachingQuaternionSpring : NSObject { NSArray *_springs; double _response; double _dampingRatio; } @property (readonly, nonatomic) NSArray *springs; @property (nonatomic) struct { } value; @property (nonatomic) struct { } target; @property (nonatomic) struct { } velocity; @property (nonatomic) double response; @property (nonatomic) double dampingRatio; - (id)init; - (void).cxx_destruct; - (void)stepWithDeltaTime:(double)a0; @end