Control the current auto-escaping behavior. This tag takes either ``on`` or
``off`` as an argument and that determines whether auto-escaping is in effect
+inside the block.
When auto-escaping is in effect, all variable content has HTML escaping applied
to it before placing the result into the output (but after any filters have
escaping, either by the code that populated the variable, or because it has had
the ``safe`` or ``escape`` filters applied.