ult</span><span class="o">&lt;</span><span class="n">size_t</span><span class="p">,</span> <span class="n">error_code</span><span class="o">&gt;</span> <span class="n">bytesread</span> <span class="o">=</span>  <span class="c1">//
</span><span class="c1"></span>  <span class="n">co_await</span> <span class="n">skt</span><span class="p">.</span><span class="n">async_read_some</span><span class="p">(</span><span class="n">asio</span><span class="o">::</span><span class="n">buffer</span><span class="p">(</span