System/Library/PrivateFrameworks/FaceTimeMessageStore.framework

FaceTimeMessageStore.DownloadManager.h

Download FaceTimeMessageStore.DownloadManager.h

1. _TtCs12_SwiftObject

@interface FaceTimeMessageStore.DownloadManager : _TtCs12_SwiftObject {
    void /* unknown type, empty encoding */ activeDownloads;
}

@end