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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 clearAnnouncements(self):
 """ Flushes the announcement table. """

        try:
            q = models.Announcement.delete().where(
                models.Announcement.id > 0)
            q.execute()
        except Exception as e:
            raise exceptions.RepoManagerException(e)