PHP statement for cron job post type switch

Hi, thank you for the great plugin!

I would like to create a cron job with PHP in which post types are switched. Do you have an example for me how that would look like in PHP?

For example something like that:

require_once(ABSPATH . ‘wp-content/plugins/post-type-switcher/post-type-switcher.php’);
$post_ID =223;
$post_type =’archive’;
set_post_type( $post_id, $post_type );

Thanks!