<map id="__gnu_pbds::null_node_update&lt; _Tp1, _Tp2, _Tp3, _Tp4 &gt;" name="__gnu_pbds::null_node_update&lt; _Tp1, _Tp2, _Tp3, _Tp4 &gt;">
<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>