我想做一些类似于Exclude pages with certain template from wp_list_pages, 但是$exclude 变量似乎没有返回_wp_page_template 值，然后使用模板筛选出相关页面guidance-note-template.php 从列表中。任何提示，非常感谢。

<?php

global $post;

$exclude = [];
foreach(get_pages([\'meta_key\' => \'_wp_page_template\', \'meta_value\' => \'guidance-note-template.php\']) as $page) {
    $exclude[] = $page->post_id;
}

$children = get_pages( array( \'child_of\' => $post->ID ) );
$hasChild = (count( $children ) > 0 );
$page_id = ($hasChild) ? $post->ID : wp_get_post_parent_id( $post->ID );
    wp_list_pages( array(
    \'title_li\'    => \'\',
    \'child_of\'    => $page_id,
    \'exclude\'      => implode(",", $exclude),
));
?>