Exclude custom post_type in sitemap generation?

I want to exclude some specific post types from generating sitemaps in yoast seo plugin. Please provide suggestions to do this. Thanks in advance.

If you are using functions.php script to register custom post type, you should declare false to 'has_archive' => true,.

function custom_post_type() {

  $labels = array( ... );
  $args = array(

    // you have to set it to False.
    'has_archive' => false,

  );
  register_post_type( 'post_type', $args );

}
add_action( 'init', 'custom_post_type', 0 );