Testing for the class of a ZInstance (was: Re: [Zope] (no subject))

Please provide useful subject information! Patrick Stinson wrote at 2003-1-3 19:33 -0900:

how can you test whether an ZObject is an instance of a certain ZClass? You provide a useful "meta type" for the ZClass (e.g. I should be unique) and tests the Z Instance's "meta_type" attribute against that of your ZClass.

Dieter