@interface RealityKit.__RKEntityAction : _TtCs12_SwiftObject <NSCopying> {
void /* unknown type, empty encoding */ targetEntity;
void /* unknown type, empty encoding */ targetEntityEngine;
void /* unknown type, empty encoding */ finishedHandler;
void /* unknown type, empty encoding */ groupHandler;
void /* unknown type, empty encoding */ stateObservers;
void /* unknown type, empty encoding */ completionHandler;
void /* unknown type, empty encoding */ isAlternate;
void /* unknown type, empty encoding */ isExclusive;
void /* unknown type, empty encoding */ exclusiveBlocksForCompletion;
void /* unknown type, empty encoding */ state;
void /* unknown type, empty encoding */ multiplePerformBehaviour;
}
- (id)copyWithZone:(void *)a0;
@end