"identifier">CustomPolygonRingRange</span><span class="special">(</span><span class="identifier">PolygonRingIterator</span> <span class="identifier">begin</span><span class="special">,</span> <span class="identifier">PolygonRingIterator</span> <span class="identifier">end</span><span class="special">)</span> <span class="special">:</span> <span class="identifier">_begin</span><span class="special">(</span><span class="identifier">begin</span><span class="special">),</span> <span class="identifier">_end</spa