gt;</span></div><div class="line"><span class="keyword">namespace </span>fusion = <a class="code" href="namespaceboost_1_1fusion.html">boost::fusion</a>;</div><div class="line"><span class="keyword">namespace </span>hana = <a class="code" href="namespaceboost_1_1hana.html">boost::hana</a>;</div><div class="line"></div><div class="line"></div><div class="line"><span class="keyword">struct </span>Fish { std::string name; };</div><div class="line"><span class="keyword">struct </span>Cat  { std::string name; };