private void TranslationResource_DownloadTranslationProgressChanged(object sender, DownloadTranslationProgressChangedEventArgs e)
 {
     this.DownloadTranslationProgressChanged?.Invoke(this, e);
 }
 protected virtual void OnDownloadTranslationProgressChanged(DownloadTranslationProgressChangedEventArgs e)
 {
     this.DownloadTranslationProgressChanged?.Invoke(this, e);
 }