Change coupon code label in WooCommerce cart totals

//Coupon Code label in checkout and cart pages
function modify_coupon_label_cart_totals( $sprintf, $coupon ) { 
    return 'Sconto '.$coupon->code;
}; 
add_filter('woocommerce_cart_totals_coupon_label', 'modify_coupon_label_cart_totals', 10, 2 );