System/Library/PrivateFrameworks/Message.framework

IMAP2Tracing.EngineTracingIDOwner.h

Download IMAP2Tracing.EngineTracingIDOwner.h

1. _TtCs12_SwiftObject

@interface IMAP2Tracing.EngineTracingIDOwner : _TtCs12_SwiftObject {
    void /* unknown type, empty encoding */ tracingID;
}

@end