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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 processLedger(self) -> None: """ Checks ledger config txns and perfomes recent one :return: """

        logger.debug('{} processing config ledger for any POOL_CONFIGs'.format(
            self), extra={"tags": ["pool-config"]})
        for _, txn in self.ledger.getAllTxn():
            if get_type(txn) == POOL_CONFIG:
                self.handleConfigTxn(txn)