n class="special">(</span>
    <span class="identifier">std</span><span class="special">::</span><span class="identifier">complex</span><span class="special">&lt;</span><span class="keyword">double</span><span class="special">&gt;,</span>
    <span class="special">(</span><span class="keyword">bool</span><span class="special">,</span> <span class="keyword">bool</span><span class="special">,</span> <span class="identifier">obj</span><span class="special">.</span><span class="identifier">imag</span><span clas