public PreviewToolPreviewPartWithFocusedRange(string previewPartId, string sourceLangCode, string targetLangCode, string sourceContent, string targetContent, FocusedRange sourceFocusedRange, FocusedRange targetFocusedRange)
     : base(previewPartId, sourceLangCode, targetLangCode, sourceContent, targetContent)
 {
     SourceFocusedRange = sourceFocusedRange;
     TargetFocusedRange = targetFocusedRange;
 }