fn view_bills_menu(bills: &Bills) {
    for bill in bills.get_all() {
        println!("{:?}", bill);
    }
}
/// Process for viewing existing bills.
Process for viewing existing bills.
Process for viewing existing bills .
fn view_bills_menu(bills: &Bills) {
    for bill in bills.get_all() {
        println!("{:?}", bill);
    }
}
fn view_bills_menu ( bills : & Bills ) { for bill in bills . get_all ( ) { println ! ( " " bill ) ; } }
Process for viewing existing bills.
Process for viewing existing bills .
bills
&Bills