use alloc::{string::String, vec};

    use alloc::{format, string::String, vec};

            assert_eq!(x1, x2);

            prop_assert_eq!(x1, x2);

            assert_eq!(s, s.parse::<PackList>().unwrap().to_string());

            prop_assert_eq!(&s, &s.parse::<PackList>().unwrap().to_string());