ase::async_base
          (3 of 3 overloads)</a>
</h6></div></div></div>
<h7><a name="beast.ref.boost__beast__async_base.async_base.overload3.h0"></a>
            <span class="phrase"><a name="beast.ref.boost__beast__async_base.async_base.overload3.synopsis"></a></span><a class="link" href="overload3.html#beast.ref.boost__beast__async_base.async_base.overload3.synopsis">Synopsis</a>
          </h7><pre class="programlisting"><span class="identifier">async_base</span><span class="special">(</span>
    <span 