Many of these files copied (and slightly modified) from
  MAUKE/Function-Parameters

original copyright message:


COPYRIGHT & LICENSE

    Copyright (C) 2010-2014, 2017 Lukas Mai.

    This program is free software; you can redistribute it and/or modify it
    under the terms of either: the GNU General Public License as published
    by the Free Software Foundation; or the Artistic License.

    See <http://dev.perl.org/licenses/> for more information.
