function wc_get_chosen_shipping_method_ids() {
	$method_ids     = array();
	$chosen_methods = WC()->session->get( 'chosen_shipping_methods', array() );
	foreach ( $chosen_methods as $chosen_method ) {
		$chosen_method = explode( ':', $chosen_method );
		$method_ids[]  = current( $chosen_method );
	}
	return $method_ids;
}