_render_group example

$class .= ' mobile';
        }

        ?> <div id="wpadminbar" class="<?php echo $class; ?>"> <?php if ( ! is_admin() && ! did_action( 'wp_body_open' ) ) { ?> <a class="screen-reader-shortcut" href="#wp-toolbar" tabindex="1"><?php _e( 'Skip to toolbar' ); ?></a> <?php } ?> <div class="quicklinks" id="wp-toolbar" role="navigation" aria-label="<?php esc_attr_e( 'Toolbar' ); ?>"> <?php                 foreach ( $root->children as $group ) {
                    $this->_render_group( $group );
                }
                ?> </div> <?php if ( is_user_logged_in() ) : ?> <a class="screen-reader-shortcut" href="<?php echo esc_url( wp_logout_url() ); ?>"><?php _e( 'Log Out' ); ?></a> <?php endif; ?> </div> <?php     }