@interface RealityKit.__RKEntityActionGroup : RealityKit.__RKEntityAction {
    void /* unknown type, empty encoding */ actions;
    void /* unknown type, empty encoding */ ordering;
    void /* unknown type, empty encoding */ loopCount;
    void /* unknown type, empty encoding */ completedActions;
    void /* unknown type, empty encoding */ completedLoops;
    void /* unknown type, empty encoding */ stopped;
}

- (id)copyWithZone:(void *)a0;

@end