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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 delete(self):
 """Clears all cached Session objects. """


        if not HAS_SQL:  # pragma: nocover
            return
        try:
            conn, c = self.connect()
            c.execute('DELETE FROM {0}'.format(self.table_name))
            conn.commit()
            conn.close()
        except:
            log.traceback(logging.DEBUG)