(self, instance)
return self.session().add(instance)
Add an ``instance`` to its backend database. This is a shurtcut
method for::

    self.session().add(instance)
Add an ``instance`` to its backend database. This is a shurtcut
method for::
Add an instance to its backend database . This is a shurtcut method for ::
def add(self, instance):
        '''Add an ``instance`` to its backend database. This is a shurtcut
method for::

    self.session().add(instance)
'''
        return self.session().add(instance)
def add ( self , instance ) : return self . session ( ) . add ( instance )