WordPress/wp-admin/includes/template.php

<?php
/**
 * Template WordPress Administration API.
 *
 * A Big Mess. Also some neat functions that are nicely written.
 *
 * @package WordPress
 * @subpackage Administration
 */

/** Walker_Category_Checklist class */
require_once( ABSPATH . 'wp-admin/includes/class-walker-category-checklist.php' );

/** WP_Internal_Pointers class */
require_once( ABSPATH . 'wp-admin/includes/class-wp-internal-pointers.php' );

/** Admin template functionality */
require_once( ABSPATH . 'wp-admin/includes/template-functions.php' );