Copyright 2017 Bodil Stokke
This software is subject to the terms of the Mozilla Public
License, v. 2.0. If a copy of the MPL was not distributed with this
file, You can obtain one at http://mozilla.org/MPL/2.0/.
Please note that this project is released with a [Contributor Code of
Conduct][coc]. By participating in this project you agree to abide by its
Blazing fast immutable collection datatypes for Rust.
Comes in two versions: [`im`](https://crates.io/crates/im) (thread safe) and
[`im-rc`](https://crates.io/crates/im-rc) (fast but not thread safe).