    function setTxFeeRate(uint256 newTxFeeRate) public virtual {
        if (newTxFeeRate > FEE_RATIO || newTxFeeRate < 0) revert InvalidFeeRate(FEE_RATIO, newTxFeeRate);
        _txfeeRate = newTxFeeRate;
        emit TxFeeRateUpdated(newTxFeeRate);
    }

    function setGaslessBasefee(uint256 newGaslessBasefee) public virtual {
        if (newGaslessBasefee < 0) revert NegativeBasefee();
        _gaslessBasefee = newGaslessBasefee;
        emit GaslessBasefeeUpdated(newGaslessBasefee);
    }
