public static String getLevelId(JpsElementReference<? extends JpsCompositeElement> reference) {
    if (reference instanceof JpsModuleReference) {
      return MODULE_LEVEL;
    }
    JpsCompositeElement element = reference.resolve();
    if (element instanceof JpsProject) {
      return PROJECT_LEVEL;
    }
    else if (element instanceof JpsGlobal) {
      return APPLICATION_LEVEL;
    }
    for (JpsModelSerializerExtension extension : JpsModelSerializerExtension.getExtensions()) {
      String levelId = extension.getLibraryTableLevelId(reference);
      if (levelId != null) {
        return levelId;
      }
    }
    return null;
  }
public static String getLevelId(JpsElementReference<? extends JpsCompositeElement> reference)