'Method called when the user clicks on the ``Next`` button.
Execute *must* be overloaded unless ``action_next`` is overloaded
(which is something you generally don\'t need to do).
If ``execute`` returns an action dictionary, that action is executed
rather than just going to the next configuration item.'

@api.multi
def execute(self):

    raise NotImplementedError('Configuration    items    need    to    implement    execute')
