This is derive implementation to make working with [KDL](https://kdl.dev) file
format convenient that works with [knuffel] parser library.
See more in the documentation of [knuffel] library itself.
[knuffel]: https://docs.rs/knuffel
License
=======
Licensed under either of
* Apache License, Version 2.0,
(./LICENSE-APACHE or <http://www.apache.org/licenses/LICENSE-2.0>)
* MIT license (./LICENSE-MIT or <http://opensource.org/licenses/MIT>)
at your option.
Contribution
------------
Unless you explicitly state otherwise, any contribution intentionally
submitted for inclusion in the work by you, as defined in the Apache-2.0
license, shall be dual licensed as above, without any additional terms or
conditions.