GPL-3.0-or-later
This is not legal advice. Read disclaimer.
Copyright (c) 2013 Project Iris. All rights reserved. Iris is dual licensed: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. The framework is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. Alternatively, the Iris framework may be used in accordance with the terms and conditions contained in a signed written agreement between you and the author(s).
Source: github.com/walkingsparrow/iris@v0.3.1/LICENSE.md