Add support for Mix and Match products to PluginHive UPS

wc-mnm-ups-bridge.php

<?php
/**
 * Plugin Name: WooCommerce Mix and Match - PluginHive UPS Bridge
 * Plugin URI: http://www.woocommerce.com/products/woocommerce-mix-and-match-products/
 * Description: Add support for Mix and Match products to UPS shipping.
 * Version: 1.0.0
 * Author: Kathy Darling
 * Author URI: http://kathyisawesome.com/
 * WC requires at least: 4.0.0
 * WC tested up to: 4.4.0
 *
 * @author Kathy Darling
 * @category Core
 * @package WC MNM + UPS Bridge
 *
 * Copyright: © 2020 Kathy Darling
 * License: GNU General Public License v3.0
 * License URI: http://www.gnu.org/licenses/gpl-3.0.html
 */

defined( 'ABSPATH' ) || exit;

/** 
 * Modify the returned order items and products to return the correct items/weights/values for shipping.
 */
 function kia_mnm_ups_compat_init() {
	add_action( 'ph_ups_before_get_items_from_order', 'kia_mnm_ups_compat_add_filters' ); 
	//add_action( 'ph_ups_after_get_items_from_order', 'kia_mnm_ups_compat_remove_filters' );
 }
 add_action( 'woocommerce_mnm_loaded', 'kia_mnm_ups_compat_init' );

 function kia_mnm_ups_compat_add_filters() { 
 	add_filter( 'woocommerce_order_get_items', array( WC_Mix_and_Match()->order, 'get_order_items' ), 10, 2 ); 
 	add_filter( 'woocommerce_order_item_product', array( WC_Mix_and_Match()->order, 'get_product_from_item' ), 10, 2 );
 }

 function kia_mnm_ups_compat_remove_filters() {
 	remove_filter( 'woocommerce_order_get_items', array( WC_Mix_and_Match()->order, 'get_order_items' ), 10, 2 ); 
 	remove_filter( 'woocommerce_order_item_product', array( WC_Mix_and_Match()->order, 'get_product_from_item' ), 10, 2 );
 }