Checks ledger config txns and perfomes recent one

        :return:

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)