+ (id)sharedCenter;
- (NSString*)sendAEWithRequestedKey:(NSString*)key eventClass:(NSString*)eventClass eventID:(NSString*)eventID appPSN:(ProcessSerialNumber)psn;
- (NSString*)sendTwoTierAEWithRequestedKey:(NSString*)key fromObjectByKey:(NSString*)object eventClass:(NSString*)eventClass eventID:(NSString*)eventID appPSN:(ProcessSerialNumber)psn;
+ (id)sharedCenter;
- (NSString*)sendAEWithRequestedKey:(NSString*)key eventClass:(NSString*)eventClass eventID:(NSString*)eventID appPSN:(ProcessSerialNumber)psn;
- (NSString*)sendTwoTierAEWithRequestedKey:(NSString*)key fromObjectByKey:(NSString*)object eventClass:(NSString*)eventClass eventID:(NSString*)eventID appPSN:(ProcessSerialNumber)psn;