@interface SwiftUI.ArchiveWriter : _TtCs12_SwiftObject {
    void /* unknown type, empty encoding */ isFinal;
    void /* unknown type, empty encoding */ attachments;
    void /* unknown type, empty encoding */ attachmentHashes;
    void /* unknown type, empty encoding */ currentOffset;
    void /* unknown type, empty encoding */ currentHasher;
    void /* unknown type, empty encoding */ cache;
    void /* unknown type, empty encoding */ signposter;
}

@end