lass="o">:</span> <span class="n">_base</span><span class="p">(</span><span class="n">h</span><span class="p">.</span><span class="n">_handler</span><span class="p">)</span>
  <span class="p">{</span>
  <span class="p">}</span>

  <span class="k">using</span> <span class="n">_base</span><span class="o">::</span><span class="n">get</span><span class="p">;</span>
<span class="p">};</span>
</code></pre></div><a href="https://github.com/boostorg/outcome/tree/master/doc/src/snippets/boost-only/asio_integration.c