@interface NewsFeed.FormatAnimationNodeSpringAnimation : _TtCs12_SwiftObject {
    void /* unknown type, empty encoding */ keyPath;
    void /* unknown type, empty encoding */ cumulative;
    void /* unknown type, empty encoding */ additive;
    void /* unknown type, empty encoding */ mass;
    void /* unknown type, empty encoding */ stiffness;
    void /* unknown type, empty encoding */ damping;
    void /* unknown type, empty encoding */ initialVelocity;
    void /* unknown type, empty encoding */ mediaTiming;
}

@end