Newbie question here...

Say I have model like the below:

class Blah(db.Model):
    """Example"""

    name = db.StringProperty()
    title = db.StringProperty()
    address = db.StringProperty()

How would I modify the output from the datastore before it gets to the
caller?  So, I want to modify the output of a call like this:
Blah.get().title and do some custom code on the title property.  I
assume I subclass and override a get method somewhere, but I am not
clear where.  I assumed I would subclass StringProperty but that
doesn't seem to have a method I need for this operation.  Any ideas?
Thanks!
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