                    GNU GENERAL PUBLIC LICENSE
                       Version 3, 29 June 2007

Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.

                            Preamble

The GNU General Public License is a free, copyleft license for
software and other kinds of works.

For the precise terms and conditions for copying, distribution and
modification, see <https://www.gnu.org/licenses/gpl-3.0.txt>.
