</span>
    <span class="c1">// Pass through unwrapped completion token
</span><span class="c1"></span>    <span class="k">template</span> <span class="o">&lt;</span><span class="k">class</span><span class="err"> </span><span class="nc">U</span><span class="o">&gt;</span>
    <span class="n">completion_handler_type</span><span class="p">(</span><span class="o">::</span><span class="n">detail</span><span class="o">::</span><span class="n">as_result_t</span><span class="o">&lt;</span><span class="n">U</span><