><span class="special">,</span> <span class="number">0</span><span class="special">&gt;(</span><span class="identifier">box</span><span class="special">)</span>
        <span class="special">&lt;&lt;</span> <span class="string">" "</span> <span class="special">&lt;&lt;</span> <span class="identifier">bg</span><span class="special">::</span><span class="identifier">get</span><span class="special">&lt;</span><span class="identifier">bg</span><span class="special">::</span><span class="identifier">min_corner</