@NotNull
  private static MyNode createModuleGroupNode(ModuleGroup moduleGroup) {
    final NamedConfigurable<?> moduleGroupConfigurable = new TextConfigurable<>(moduleGroup, moduleGroup.toString(),
                                                                                JavaUiBundle.message("module.group.banner.text",
                                                                                                      moduleGroup.toString()),
                                                                                JavaUiBundle.message("project.roots.module.groups.text"),
                                                                                PlatformIcons.CLOSED_MODULE_GROUP_ICON);
    return new ModuleGroupNodeImpl(moduleGroupConfigurable, moduleGroup);
  }
@NotNull
  private static MyNode createModuleGroupNode(ModuleGroup moduleGroup)