in JetBrains.Etw.HostService.Updater/src/Views/DownloadingWindow.xaml.cs [166:170]
public SubLogger([NotNull] Util.ILogger logger, [NotNull] string context)
{
myLogger = logger ?? throw new ArgumentNullException(nameof(logger));
myContext = context ?? throw new ArgumentNullException(nameof(context));
}