@Override
  public LibraryTable.ModifiableModel getLibraryTableModifiableModel(@NotNull Project project) {
    StructureConfigurableContext context = getProjectStructureContext(project);
    if (context != null) {
      LibraryTableModifiableModelProvider provider = context.createModifiableModelProvider(LibraryTablesRegistrar.PROJECT_LEVEL);
      return provider.getModifiableModel();
    }
    return LibraryTablesRegistrar.getInstance().getLibraryTable(project).getModifiableModel();
  }
@Override
  public LibraryTable.ModifiableModel getLibraryTableModifiableModel(@NotNull Project project)