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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 set_up(self, u, engine):
 """Special setup for mysql engines"""

        # add the reconnecting PoolListener that will detect a
        # disconnected connection and automatically start a new
        # one.  This provides a measure of additional safety over
        # the pool_recycle parameter, and is useful when e.g., the
        # mysql server goes away
        def checkout_listener(dbapi_con, con_record, con_proxy):
            try:
                cursor = dbapi_con.cursor()
                cursor.execute("SELECT 1")
            except dbapi_con.OperationalError as ex:
                if self.is_disconnect(ex.args):
                    # sqlalchemy will re-create the connection
                    log.msg('connection will be removed')
                    raise sa.exc.DisconnectionError()
                log.msg('exception happened {}'.format(ex))
                raise

        # older versions of sqlalchemy require the listener to be specified
        # in the kwargs, in a class instance
        if sautils.sa_version() < (0, 7, 0):
            class ReconnectingListener:
                pass
            rcl = ReconnectingListener()
            rcl.checkout = checkout_listener
            engine.pool.add_listener(rcl)
        else:
            sa.event.listen(engine.pool, 'checkout', checkout_listener)