System/Library/Frameworks/EventKit.framework
EKNotification.h
@class EKObjectID, NSString, NSURL;
@interface EKNotification : EKObject
@property (readonly, nonatomic) EKObjectID *objectID;
@property (copy, nonatomic) NSString *externalID;
@property (copy, nonatomic) NSString *externalModificationTag;
@property (copy, nonatomic) NSString *UUID;
@property (copy, nonatomic) NSURL *hostURL;
+ (id)knownRelationshipSingleValueKeys;
+ (Class)frozenClass;
+ (id)knownRelationshipWeakKeys;
- (BOOL)save:(id *)a0;
- (id)calendar;
@end