ing</span><span class="special">(</span><span class="special">)</span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">=</span> <span class="keyword">true</span><span class="special">,</span> 
                              <span class="keyword">bool</span> <span class="special">=</span> <span class="keyword">true</span><span class="special">)</span><span class="special">;</span>
  <a class="link" href="output_test_stream.html#idp41348512-bb"><span class="special">~</spa