wp_ajax_health_check_background_updates

function wp_ajax_health_check_background_updates() {
	check_ajax_referer( 'health-check-site-status' );

	if ( ! current_user_can( 'view_site_health_checks' ) ) {
		wp_send_json_error();
	}

	if ( ! class_exists( 'WP_Site_Health' ) ) {
		require_once ABSPATH . 'wp-admin/includes/class-wp-site-health.php';
	}

	$site_health = WP_Site_Health::get_instance();
	wp_send_json_success( $site_health->get_test_background_updates() );
}