his example uses fibers (stackful coroutines) and its own I/O context.
*/</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span>
<span class="identifier">https_get</span> <span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">host</span><span class="special">,</span> <span class="