tream::async_write_some</a>
</h5></div></div></div>
<p>
          <a class="indexterm" name="idm30188"></a>
        </p>
<p>
          Start an asynchronous write.
        </p>
<h6>
<a name="beast.ref.boost__beast__flat_stream.async_write_some.h0"></a>
          <span class="phrase"><a name="beast.ref.boost__beast__flat_stream.async_write_some.synopsis"></a></span><a class="link" href="async_write_some.html#beast.ref.boost__beast__flat_stream.async_write_some.synopsis">Synopsis</a>
        </h6>
<pre class=