[`HashSet::get`](https://doc.rust-lang.org/std/collections/struct.HashSet.html#method.get) is an API stabilized way back in Rust 1.9 before the initial `LinearSet` PR https://github.com/contain-rs/linear-map/pull/26. Somehow the equivalent `LinearSet::get` got missed out.
HashSet::getis an API stabilized way back in Rust 1.9 before the initialLinearSetPR #26. Somehow the equivalentLinearSet::getgot missed out.