variables:
<!--#loop "variables-" $number-->
<!--#echo $variable_name-->  =>  <!--#echo $variable_value-->
<!--#endloop-->
named children:
<!--#loop "named_children-" $number-->
<!--#loop $nc_name-->
<!--#echo $nc_name-->: <!--#include "t/2_debug.tmpl"-->
<!--#endloop-->
<!--#endloop-->