cp-automatically-select-remaining-variation-in-component

<?php
/**
 * Plugin Name: WooCommerce Composite Products
 * Plugin URI: https://woocommerce.com/products/composite-products/
 * Description: Use this snippet to automatically select the remaining available variation in a component
 * Version: 1.0
 * Author: WooCommerce
 * Author URI: https://woocommerce.com/
 * Developer: Manos Psychogyiopoulos
 *
 * Requires at least: 4.1
 * Tested up to: 5.3
 *
 * Copyright: © 2021 Automattic.
 * License: GNU General Public License v3.0
 * License URI: http://www.gnu.org/licenses/gpl-3.0.html
 */
 
 add_filter( 'woocommerce_composite_component_classes', 'wc_cp_autoselect_attributes', 10, 3 );
function wc_cp_autoselect_attributes( $classes, $component_id, $composite ) {

	$classes[] = 'autoselect_attributes';

	return $classes;
}