<map id="__gnu_pbds::null_node_update< _Tp1, _Tp2, _Tp3, _Tp4 >" name="__gnu_pbds::null_node_update< _Tp1, _Tp2, _Tp3, _Tp4 >"> <area shape="rect" id="node1" title="A null node updator, indicating that no node updates are required." alt="" coords="5,79,157,131"/> <area shape="rect" id="node2" href="$a11212.html" title="Represents no type, or absence of type, for template tricks." alt="" coords="8,5,155,31"/> </map>