WP_Admin_Bar::get_nodes()
Method:
Source: wp-includes/class-wp-admin-bar.php:236
WP_Admin_Bar::_get_nodes()
Method:
Source: wp-includes/class-wp-admin-bar.php:253
WP_Admin_Bar::add_group()
Method: Adds a group to a toolbar menu node.
Source: wp-includes/class-wp-admin-bar.php:277