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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def save_schedule(self):
        '''
        Save the current schedule
        '''
        self.persist()

        # Fire the complete event back along with the list of schedule
        evt = salt.utils.event.get_event('minion', opts=self.opts, listen=False)
        evt.fire_event({'complete': True},
                       tag='/salt/minion/minion_schedule_saved')