interface ICoFiXFactory {
    // All pairs: {ETH <-> ERC20 Token}
    event PairCreated(address indexed token, address pair, uint256);
    event NewGovernance(address _new);
    event NewController(address _new);
    event NewFeeReceiver(address _new);
    event NewFeeVaultForLP(address token, address feeVault);
    event NewVaultForLP(address _new);
    event NewVaultForTrader(address _new);
    event NewVaultForCNode(address _new);

    /// @dev Create a new token pair for trading
    /// @param  token the address of token to trade
    /// @return pair the address of new token pair
    function createPair(
        address token
        )
        external
        returns (address pair);

    function getPair(address token) external view returns (address pair);
    function allPairs(uint256) external view returns (address pair);
    function allPairsLength() external view returns (uint256);

    function getTradeMiningStatus(address token) external view returns (bool status);
    function setTradeMiningStatus(address token, bool status) external;
    function getFeeVaultForLP(address token) external view returns (address feeVault); // for LPs
    function setFeeVaultForLP(address token, address feeVault) external;

    function setGovernance(address _new) external;
    function setController(address _new) external;
    function setFeeReceiver(address _new) external;
    function setVaultForLP(address _new) external;
    function setVaultForTrader(address _new) external;
    function setVaultForCNode(address _new) external;
    function getController() external view returns (address controller);
    function getFeeReceiver() external view returns (address feeReceiver); // For CoFi Holders
    function getVaultForLP() external view returns (address vaultForLP);
    function getVaultForTrader() external view returns (address vaultForTrader);
    function getVaultForCNode() external view returns (address vaultForCNode);
}
// 
function setFeeVaultForLP(address token, address feeVault) external;
// for LPs