[Zope] Question arisinfg from Beehive ZClass Tut

[Wayne Izatt]

Hello. This is a question for someone familiar with
the Beehive ZClass tutorial. Everything is quite
reasonable. However, in the add_instance_html DTML
Method, there is a dtml-call to Bookclass_add(_.None,
_, NoRedir=1).

I understand that "_" is the default namespace, but I
don't get the "_.None" parameter.

Any help woulf be much appreciated.


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