+<!--
+ Copyright 2018-2019 Hans Dembinski
+
+ Distributed under the Boost Software License, Version 1.0.
+ (See accompanying file LICENSE_1_0.txt
+ or copy at http://www.boost.org/LICENSE_1_0.txt)
+-->
+
<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<!DOCTYPE boost_serialization>
<boost_serialization signature="serialization::archive" version="17">