    modifier onlyByOwnGov() {
        require(msg.sender == timelock_address || msg.sender == owner, "Not owner or timelock");
        _;
    }
add or remove validator from OperatorRegistry.sol

set minter address or remove minter address in frxETH.sol

minter set by admin can mint or burn any amount of frxETH token.

set ETE deduction ratio, withdraw any amount of ETH or ERC20 token in frcETHMinter.sol
