useordermap::OrderSet;/// Indexmap does not check ordering for comparison, so we use ordermap instead.
#[test]pubfnit_works()->eyre::Result<()>{letmut a =OrderSet::new();
a.insert("a".to_string());
a.insert("b".to_string());letmut b = a.clone();
b.swap_indices(0,1);assert_ne!(a, b);Ok(())}