[Zope] set / change modification time of an object directly

[Andreas Hölzl]

hi all,

every object inside Zope (i.e. of the ZODB) has got its own modification time.
If you have access to an object inside a product, for example via
"my_obj = self.restrictedTraverse(obj_path)", you can get a human readable 
version of that modification time with "my_obj.bobobase_modification_time()", 
 calling that certain method everyone knows.

is it possible to get access to the modification time attribute of the object 
directly ?
what about "my_obj._p_mtime" ?
how can one set / update / change ?

thanks,

Andreas Hoelzl