f it were a tuple containing <code><a class="el" href="structboost_1_1hana_1_1type.html" title="C++ type in value-level representation. ">hana::type</a></code>s. <div class="fragment"><div class="line"><span class="comment">// Copyright Louis Dionne 2013-2017</span></div><div class="line"><span class="comment">// Distributed under the Boost Software License, Version 1.0.</span></div><div class="line"><span class="comment">// (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)</spa