'Receive an object instance after it has been created via
``__new__``, and after initial attribute population has
occurred.
This typically occurs when the instance is created based on
incoming result rows, and is only called once for that
instance\'s lifetime.
Note that during a result-row load, this method is called upon
the first row received for this instance.  Note that some
attributes and collections may or may not be loaded or even
initialized, depending on what\'s present in the result rows.
The return value is only significant within the ``MapperExtension``
chain; the parent mapper\'s behavior isn\'t modified by this method.'

def reconstruct_instance(self, mapper, instance):

    return EXT_CONTINUE
