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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 onSync(self, event):
 """ Initializes the database by defining any additional structures that are required during selection. """

        SETUP = self.statement('SETUP')
        if SETUP:
            sql, data = SETUP(self.database())
            if event.context.dryRun:
                print sql % data
            else:
                self.execute(sql, data, writeAccess=True)