The conservancy_beancount package and associated tests:

Copyright © 2020, 2021  Brett Smith
Copyright © 2020  Martin Michlmayr <tbm@cyrius.com>
Copyright © 2020  Bradley M. Kuhn

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

his program 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 Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License
along with this program in the file AGPLv3.txt.  If not, see
<https://www.gnu.org/licenses/>.

Pursuant to AGPLv3§7, the following "additional permission", called the
Beancount-Plugin-Additional-Permission-1.0, is hereby granted:

 This notice constitutes a grant of any permission as is necessary to
 combine, link or modify this software, or a modified version of it, in any
 manner that incorporates Beancount or a derivative work of Beancount, and
 to distribute, convey or propagate the resulting work.  Beancount is
 licensed under version 2 of the GNU General Public License.