@interface GroupActivities.AttachmentLedgerTopic : _TtCs12_SwiftObject {
void /* unknown type, empty encoding */ name;
void /* unknown type, empty encoding */ lock;
void /* unknown type, empty encoding */ pluginGenerator;
void /* unknown type, empty encoding */ _topic;
void /* unknown type, empty encoding */ stateMachine;
void /* unknown type, empty encoding */ retainRefOnStart;
void /* unknown type, empty encoding */ retainRef;
void /* unknown type, empty encoding */ waitingForTopicCancellables;
void /* unknown type, empty encoding */ subscribingCancellables;
void /* unknown type, empty encoding */ pluginTopicCancellables;
void /* unknown type, empty encoding */ dataCryptor;
void /* unknown type, empty encoding */ _attachments;
void /* unknown type, empty encoding */ retryInfo;
}
@end