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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 processOrdered(self, ordered: Ordered):
 """ Execute ordered request :param ordered: an ordered request :return: whether executed """


        if ordered.instId not in self.instances.ids:
            logger.warning('{} got ordered request for instance {} which '
                           'does not exist'.format(self, ordered.instId))
            return False

        if ordered.instId != self.instances.masterId:
            # Requests from backup replicas are not executed
            logger.trace("{} got ordered requests from backup replica {}"
                         .format(self, ordered.instId))
            with self.metrics.measure_time(MetricsName.MONITOR_REQUEST_ORDERED_TIME):
                self.monitor.requestOrdered(ordered.valid_reqIdr + ordered.invalid_reqIdr,
                                            ordered.instId,
                                            self.requests,
                                            byMaster=False)
            return False

        logger.trace("{} got ordered requests from master replica"
                     .format(self))

        logger.debug("{} executing Ordered batch {} {} of {} requests; state root {}; txn root {}"
                     .format(self.name,
                             ordered.viewNo,
                             ordered.ppSeqNo,
                             len(ordered.valid_reqIdr),
                             ordered.stateRootHash,
                             ordered.txnRootHash))

        three_pc_batch = ThreePcBatch.from_ordered(ordered)
        if self.db_manager.ledgers[AUDIT_LEDGER_ID].uncommittedRootHash is None:
            # if we order request during view change
            # in between catchup rounds, then the 3PC batch will not be applied,
            # since it was reverted before catchup started, and only COMMITs were
            # processed in between catchup that led to this ORDERED msg
            logger.info("{} applying stashed requests for batch {} {} of {} requests; state root {}; txn root {}"
                        .format(self.name,
                                three_pc_batch.view_no,
                                three_pc_batch.pp_seq_no,
                                len(three_pc_batch.valid_digests),
                                three_pc_batch.state_root,
                                three_pc_batch.txn_root))

            self.apply_stashed_reqs(three_pc_batch)

        self.executeBatch(three_pc_batch,
                          ordered.valid_reqIdr,
                          ordered.invalid_reqIdr,
                          ordered.auditTxnRootHash)

        with self.metrics.measure_time(MetricsName.MONITOR_REQUEST_ORDERED_TIME):
            self.monitor.requestOrdered(ordered.valid_reqIdr + ordered.invalid_reqIdr,
                                        ordered.instId,
                                        self.requests,
                                        byMaster=True)

        return True