#import "TDEventModel.h" NS_ASSUME_NONNULL_BEGIN @interface TDEditableEventModel : TDEventModel - (instancetype)initWithEventName:(NSString *)eventName eventID:(NSString *)eventID; @end @interface TDUpdateEventModel : TDEditableEventModel @end @interface TDOverwriteEventModel : TDEditableEventModel @end NS_ASSUME_NONNULL_END