creation_sourcecode: {{
    "language": "Solidity",
    "sources": {
      "/contracts/subStrategies/ETHStrategy.sol": {
        "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nimport \"@openzeppelin/contracts/access/Ownable.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol\";\nimport \"@openzeppelin/contracts/security/ReentrancyGuard.sol\";\n\n\nimport \"./interfaces/IAavePool.sol\";\nimport \"./interfaces/IAave.sol\";\nimport \"./interfaces/IETHLeverage.sol\";\nimport \"./interfaces/IFlashloanReceiver.sol\";\nimport \"./interfaces/IExchange.sol\";\nimport \"../interfaces/ISubStrategy.sol\";\nimport \"../interfaces/IVault.sol\";\n\ncontract ETHStrategy is Ownable,ReentrancyGuard, ISubStrategy, IETHLeverage {\n\n    using SafeERC20 for IERC20;\n    // Sub Strategy name\n    string public constant poolName = \"ETHStrategy V0.9\";\n\n    mapping(address=>bool) operator;\n\n    // Controller address\n    address public controller;\n\n    // Vault address\n    address public vault;\n\n    // Constant magnifier\n    uint256 public constant magnifier = 10000;\n\n    // Exchange Address\n    address public exchange;\n\n    // Flashloan receiver\n    address public receiver;\n\n    // Fee collector\n    address public feePool;\n\n    // user input asset\n    IERC20 public baseAsset;\n\n    // deposit asset into aave pool\n    IERC20 public depositAsset;\n\n    // aave pool token\n    IERC20 public aDepositAsset;\n\n    // aave address\n    address public IaavePool;\n\n    uint256 public feeRate = 1000;\n\n    // Max Deposit\n    uint256 public override maxDeposit;\n\n    // Last Earn Total\n    uint256 internal lastTotal;\n    bool internal harvested = false;\n\n    // Max Loan Ratio\n    uint256 public mlr;\n\n    enum SrategyState {\n        Normal,\n        Deposit,\n        Withdraw,\n        RaiseMLR,\n        ReduceMLR\n    }\n\n    event SetController(address controller);\n\n    event SetVault(address vault);\n\n    event SetExchange(address exchange);\n\n    event SetFeePool(address feePool);\n\n    event SetMaxDeposit(uint256 maxDeposit);\n\n    event SetFlashloanReceiver(address receiver);\n\n    event SetMLR(uint256 oldMlr, uint256 newMlr);\n\n    event SetFeeRate(uint256 oldRate, uint256 newRate);\n\n    event SetOperator(address operator, bool istrue);\n\n    event LTVUpdate(\n        uint256 oldDebt,\n        uint256 oldCollateral,\n        uint256 newDebt,\n        uint256 newCollateral\n    );\n\n    constructor(\n        IERC20 _baseAsset,\n        IERC20 _depositAsset,\n        IERC20 _aDepositAsset,\n        uint256 _mlr,\n        address _IaavePool,\n        address _vault,\n        address _feePool,\n        uint8 _emode\n    ) {\n        mlr = _mlr;\n        baseAsset = _baseAsset;\n        depositAsset = _depositAsset;\n        aDepositAsset = _aDepositAsset;\n        IaavePool = _IaavePool;\n\n        vault = _vault;\n        feePool = _feePool;\n\n\n        // Set Max Deposit as max uin256\n        maxDeposit = type(uint256).max;\n        address aave = IAavePool(_IaavePool).aave();\n        baseAsset.safeApprove(aave, type(uint256).max);\n        depositAsset.safeApprove(_IaavePool, type(uint256).max);\n        if(_emode != 0){\n            IAave(aave).setUserEMode(_emode);\n        }\n    }\n\n    receive() external payable {}\n\n    /**\n        Only controller can call\n     */\n    modifier onlyController() {\n        require(controller == _msgSender(), \"NOT_CONTROLLER\");\n        _;\n    }\n    modifier onlyOperator() {\n        require(operator[_msgSender()] == true, \"NOT_OPERATOR\");\n        _;\n    }\n    /**\n        Only Flashloan receiver can call\n     */\n    modifier onlyReceiver() {\n        require(receiver == _msgSender(), \"NOT_FLASHLOAN_RECEIVER\");\n        _;\n    }\n    modifier collectFee(){\n        (,uint256 mintAmount) = _calculateFee();\n        harvested = true;\n        if(mintAmount>0){\n            IVault(vault).mint(mintAmount, feePool);\n        }\n        _;\n        harvested = false;\n        lastTotal = _realTotalAssets();\n    }\n    //////////////////////////////////////////\n    //           Flash loan Fallback        //\n    //////////////////////////////////////////\n\n    /**\n        External Function for Callback when to flash loan\n     */\n    function loanFallback(\n        uint256 loanAmt,\n        uint256 feeAmt,\n        bytes calldata userData\n    ) external override onlyReceiver {\n        (SrategyState curState,uint256 userValue) = abi.decode(userData,(SrategyState,uint256));\n        require(curState != SrategyState.Normal, \"NORMAL_STATE_CANT_CALL_THIS\");\n        address aave = IAavePool(IaavePool).aave();\n        if (curState == SrategyState.Deposit) {\n            // Swap baseAsset to depositAsset\n            uint256 depoistAmt = IExchange(exchange).swap(address(baseAsset),address(depositAsset),userValue+loanAmt,0);\n    \n            IAavePool(IaavePool).deposit(address(depositAsset), depoistAmt);\n            if (IAavePool(IaavePool).getCollateral(address(this)) == 0) {\n                IAave(aave).setUserUseReserveAsCollateral(address(depositAsset), true);\n            }\n            // Repay flash loan\n            uint256 repay = loanAmt + feeAmt;\n            IAave(aave).borrow(address(baseAsset), repay, 2, 0, address(this));\n        } else if (curState == SrategyState.Withdraw) {\n            uint256 withdrawAmount = (loanAmt *\n                aDepositAsset.balanceOf(address(this))) / IAavePool(IaavePool).getDebt(address(this));\n\n            // Repay WETH to aave\n            IAave(aave).repay(address(baseAsset), loanAmt, 2, address(this));\n            IAave(aave).withdraw(address(depositAsset), withdrawAmount, address(this));\n\n            // Swap depositAsset to baseAsset\n            IExchange(exchange).swap(address(depositAsset),address(baseAsset),withdrawAmount,0);\n        }else if (curState == SrategyState.RaiseMLR) {\n            // Transfer baseAsset to Exchange\n            uint256 slippage = userValue;\n            uint256 minOut = IAavePool(IaavePool).convertAmount(address(baseAsset), address(depositAsset),loanAmt*(magnifier-slippage)/magnifier);\n            // Swap baseAsset to depositAsset\n            IExchange(exchange).swap(address(baseAsset),address(depositAsset),loanAmt,minOut);\n    \n            // Deposit depositAsset to AAVE\n            uint256 depoistBalance = depositAsset.balanceOf(address(this));\n\n            IAavePool(IaavePool).deposit(address(depositAsset), depoistBalance);\n            if (IAavePool(IaavePool).getCollateral(address(this)) == 0) {\n                IAave(aave).setUserUseReserveAsCollateral(address(depositAsset), true);\n            }\n            // Repay flash loan\n            uint256 repay = loanAmt + feeAmt;\n            IAave(aave).borrow(address(baseAsset), repay, 2, 0, address(this));\n        } else if (curState == SrategyState.ReduceMLR) {\n            uint256 slippage = userValue;\n            uint256 repayflash = loanAmt + feeAmt;\n            uint256 maxInput = IAavePool(IaavePool).convertAmount(address(baseAsset), address(depositAsset),repayflash*magnifier/(magnifier-slippage));\n            IAave(aave).repay(address(baseAsset), loanAmt, 2, address(this));\n            uint256 withdrawAmount =IExchange(exchange).getCurveInputValue(address(depositAsset),address(baseAsset),repayflash,maxInput);\n            IAave(aave).withdraw(address(depositAsset), withdrawAmount, address(this));\n            uint256 minOut = IAavePool(IaavePool).convertAmount(address(depositAsset), address(baseAsset),withdrawAmount*(magnifier-slippage)/magnifier);\n            IExchange(exchange).swap(address(depositAsset),address(baseAsset),withdrawAmount,minOut);            // Repay Weth to receiver\n            uint256 balance = baseAsset.balanceOf(address(this)) - loanAmt - feeAmt;\n            uint256 debt = IAavePool(IaavePool).getDebt(address(this));\n            if(balance>debt){\n                balance = debt;\n            }\n            if(balance>0){\n                IAave(aave).repay(address(baseAsset), balance, 2, address(this));\n            }\n        } else {\n            revert(\"NOT_A_SS_STATE\");\n        }\n    }\n\n    //////////////////////////////////////////\n    //          VIEW FUNCTIONS              //\n    //////////////////////////////////////////\n\n    /**\n        External view function of total USDC deposited in Covex Booster\n     */\n    function totalAssets() external view override returns (uint256) {\n        return _totalAssets();\n    }\n\n    /**\n        Internal view function of total USDC deposited\n    */\n    function _totalAssets() internal view returns (uint256) {\n        if (!harvested){\n            (uint256 fee,) = _calculateFee();\n            return _realTotalAssets() - fee;\n        }else{\n            return _realTotalAssets();\n        }\n    }\n    function _realTotalAssets()internal view returns (uint256) {\n        (uint256 st,uint256 e) = IAavePool(IaavePool).getCollateralAndDebt(address(this));\n        return st-e;\n    }\n    /**\n        Deposit function of USDC\n     */\n    function deposit(\n        uint256 _amount\n    ) external override onlyController collectFee returns (uint256) {\n        uint256 deposited = _deposit(_amount);\n        return deposited;\n    }\n\n    /**\n        Deposit internal function\n     */\n    function _deposit(uint256 _amount) internal returns (uint256) {\n        // Get Prev Deposit Amt\n        uint256 prevAmt = _totalAssets();\n\n        // Check Max Deposit\n        require(prevAmt + _amount <= maxDeposit, \"EXCEED_MAX_DEPOSIT\");\n\n        // Calculate Flashloan Fee - in terms of 1e4\n        uint256 fee = IFlashloanReceiver(receiver).getFee();\n        uint256 feeParam = fee + magnifier;\n        uint256 loanAmt = (_amount * mlr) / (feeParam - mlr);\n        // uint256 feeAmt = (loanAmt * fee) / magnifier;\n\n        // Execute flash loan\n        IFlashloanReceiver(receiver).flashLoan(address(baseAsset), loanAmt,abi.encode(SrategyState.Deposit,_amount));\n\n        // Get new total assets amount\n        uint256 newAmt = _totalAssets();\n\n        // Deposited amt\n        uint256 deposited = newAmt - prevAmt;\n        return deposited;\n    }\n\n    /**\n        Withdraw function of USDC\n     */\n    function withdraw(\n        uint256 _amount\n    ) external override onlyController collectFee returns (uint256) {\n\n        // Get Prev Deposit Amt\n        uint256 prevAmt = _totalAssets();\n        require(_amount <= prevAmt, \"INSUFFICIENT_ASSET\");\n\n        uint256 debt = IAavePool(IaavePool).getDebt(address(this));\n\n        if(debt>0){\n            uint256 preBalance = baseAsset.balanceOf(address(this));\n            uint256 loanAmt = (debt * _amount) / prevAmt;\n            IFlashloanReceiver(receiver).flashLoan(address(baseAsset), loanAmt,abi.encode(SrategyState.Withdraw,uint256(0)));\n\n            uint256 toSend = baseAsset.balanceOf(address(this))-preBalance;\n            return toSend;\n        }else{\n            address aave = IAavePool(IaavePool).aave();\n            uint256 withdrawAmount = (_amount * aDepositAsset.balanceOf(address(this))) / prevAmt;\n            //debt = 0\n            IAave(aave).withdraw(address(depositAsset), withdrawAmount, address(this));\n            // Swap depositAsset to baseAsset\n            return IExchange(exchange).swap(address(depositAsset),address(baseAsset),withdrawAmount,0);\n        }\n\n    }\n\n    /**\n        Harvest reward token from convex booster\n     */\n    function harvest() external onlyOperator collectFee {\n    }\n    function _calculateFee()internal view returns (uint256,uint256) {\n        uint256 currentAssets = _realTotalAssets();\n        if(lastTotal>=currentAssets){\n            return (0,0);\n        }else{\n            uint256 totalEF = IERC20(vault).totalSupply();\n            if (totalEF == 0){\n                return (0,0);\n            }\n            //uint256 feePoolBal = IERC20(vault).balanceOf(feePool);\n            \n            uint256 stFee = (currentAssets-lastTotal) *feeRate /magnifier;\n            //stFee = stFee - ((stFee * feePoolBal) / (totalEF));\n            uint256 mintAmt = (stFee * totalEF) / (currentAssets - stFee);\n            if (mintAmt == 0){\n                return (0,0);\n            }\n            return (stFee,mintAmt);\n        }\n    }\n\n\n    function changeMLR(uint256 _mlr,uint256 swapSlippage) internal {\n        if (_mlr > mlr){\n            raiseMLR(_mlr, swapSlippage);\n        }else if(_mlr < mlr){\n            reduceMLR(_mlr, swapSlippage);\n        }\n\n    }\n    function raiseMLR(uint256 _mlr,uint256 swapSlippage)internal{\n        //flashloan = (mlr*a-b)/(1-mlr*s)\n        (uint256 coll,uint256 debt) = IAavePool(IaavePool).getCollateralAndDebt(address(this));\n        uint256 debtNew = _mlr*coll;\n        debt = debt*magnifier;\n        if (debtNew>debt){\n            uint256 amount =(debtNew-debt)*magnifier/(magnifier*magnifier-_mlr*(magnifier-swapSlippage));\n            IFlashloanReceiver(receiver).flashLoan(address(baseAsset), amount,abi.encode(SrategyState.RaiseMLR,swapSlippage));\n        }\n        (uint256 coll1,uint256 debt1) = IAavePool(IaavePool).getCollateralAndDebt(address(this));\n        emit LTVUpdate(debt/magnifier, coll, debt1, coll1);\n    }\n    function reduceMLR(uint256 _mlr,uint256 swapSlippage)internal{\n        //flashloan = (b-mlr*a)/(s-mlr)\n        (uint256 coll,uint256 debt) = IAavePool(IaavePool).getCollateralAndDebt(address(this));\n        uint256 debtNew = _mlr*coll;\n        debt = debt*magnifier;\n        if (debtNew<debt){\n            uint256 amount =(debt-debtNew)/(magnifier-swapSlippage-_mlr);\n            IFlashloanReceiver(receiver).flashLoan(address(baseAsset), amount,abi.encode(SrategyState.ReduceMLR,swapSlippage));\n        }\n        (uint256 coll1,uint256 debt1) = IAavePool(IaavePool).getCollateralAndDebt(address(this));\n        emit LTVUpdate(debt/magnifier, coll, debt1, coll1);\n    }\n    /**\n        Raise LTV\n     */\n     /*\n    function raiseLTV(uint256 lt,uint256 swapSlippage) external onlyOwner {\n        //flashloan = mlr/(1-mlr)*collateral-1/(1-mlr)*debt\n        (uint256 st,uint256 e) = IAavePool(IaavePool).getCollateralAndDebt(address(this));\n\n        require(e * magnifier < st * mlr, \"NO_NEED_TO_RAISE\");\n\n        address aave = IAavePool(IaavePool).aave();\n        uint256 x = (st * mlr - (e * magnifier)) / (magnifier - mlr);\n        uint256 y = (st * lt) / magnifier - e - 1;\n\n        if (x > y) {\n            x = y;\n        }\n\n        IAave(aave).borrow(address(baseAsset), x, 2, 0, address(this));\n        uint256 baseAmt = baseAsset.balanceOf(address(this));\n\n        // Transfer base asset to Exchange\n        baseAsset.safeTransfer(exchange, baseAmt);\n        // Swap baseAsset to depositAsset\n        uint256 minOut = IAavePool(IaavePool).convertAmount(address(baseAsset), address(depositAsset),baseAmt*(magnifier-swapSlippage)/magnifier);\n        IExchange(exchange).swap(address(baseAsset),address(depositAsset),baseAmt,minOut);\n\n        // Deposit STETH to AAVE\n        uint256 depositAmt = depositAsset.balanceOf(address(this));\n\n        IAavePool(IaavePool).deposit(address(depositAsset), depositAmt);\n        (uint256 st1,uint256 e1) = IAavePool(IaavePool).getCollateralAndDebt(address(this));\n        emit LTVUpdate(e, st, e1, st1);\n    }\n*/\n    /**\n        Reduce LTV\n     */\n     /*\n    function reduceLTV(uint256 swapSlippage) external onlyOwner {\n        (uint256 st,uint256 e) = IAavePool(IaavePool).getCollateralAndDebt(address(this));\n\n        require(e * magnifier > st * mlr, \"NO_NEED_TO_REDUCE\");\n\n        address aave = IAavePool(IaavePool).aave();\n\n        uint256 x = (e * magnifier - st * mlr) / (magnifier - mlr);\n\n        uint256 loanAmt = (x * e) / st;\n\n        IFlashloanReceiver(receiver).flashLoan(address(baseAsset), loanAmt,abi.encode(SrategyState.Withdraw,uint256(0)));\n\n\n        uint256 baseBal = baseAsset.balanceOf(address(this));\n        // Approve WETH to AAVE\n        // Repay WETH to aave\n        IAave(aave).repay(address(baseAsset), baseBal, 2, address(this));\n    }\n\n*/\n\n    /**\n        Check withdrawable status of required amount\n     */\n    function withdrawable(\n        uint256 _amount\n    ) external view override returns (uint256) {\n        // Get Current Deposit Amt\n        uint256 total = _totalAssets();\n\n        // If requested amt is bigger than total asset, return false\n        if (_amount > total) return total;\n        // Todo Have to check withdrawable amount\n        else return _amount;\n    }\n\n\n    //////////////////////////////////////////////////\n    //               SET CONFIGURATION              //\n    //////////////////////////////////////////////////\n\n    /**\n        Set Controller\n     */\n    function setController(address _controller) external onlyOwner {\n        require(controller == address(0), \"CONTROLLER_ALREADY\");\n        require(_controller != address(0), \"INVALID_ADDRESS\");\n        controller = _controller;\n        baseAsset.safeApprove(_controller,type(uint256).max);\n        emit SetController(controller);\n    }\n    /**\n        Set Operator\n     */\n    function setOperator(address _Operator, bool _isTrue) external onlyOwner {\n        require(_Operator != address(0), \"INVALID_ADDRESS\");\n        operator[_Operator]=_isTrue;\n        emit SetOperator(_Operator, _isTrue);\n    }\n    /**\n        Set Vault\n     */\n    function setVault(address _vault) external onlyOwner {\n        require(_vault != address(0), \"INVALID_ADDRESS\");\n        vault = _vault;\n\n        emit SetVault(vault);\n    }\n\n    /**\n        Set Fee Pool\n     */\n    function setFeePool(address _feePool) external onlyOwner {\n        require(_feePool != address(0), \"INVALID_ADDRESS\");\n        feePool = _feePool;\n\n        emit SetFeePool(feePool);\n    }\n\n    /**\n        Set Max Deposit\n     */\n    function setMaxDeposit(uint256 _maxDeposit) external onlyOwner {\n        require(_maxDeposit > 0, \"INVALID_MAX_DEPOSIT\");\n        maxDeposit = _maxDeposit;\n\n        emit SetMaxDeposit(maxDeposit);\n    }\n\n    /**\n        Set Flashloan Receiver\n     */\n    function setFlashLoanReceiver(address _receiver) external onlyOwner {\n        require(_receiver != address(0), \"INVALID_RECEIVER_ADDRESS\");\n        if (receiver != address(0)){\n            baseAsset.safeApprove(receiver,0);\n        }\n        receiver = _receiver;\n        baseAsset.safeApprove(_receiver,type(uint256).max);\n        emit SetFlashloanReceiver(receiver);\n    }\n\n    /**\n        Set Exchange\n     */\n    function setExchange(address _exchange) external onlyOwner {\n        require(_exchange != address(0), \"INVALID_ADDRESS\");\n        if (exchange != address(0)){\n            baseAsset.safeApprove(exchange,0);\n            depositAsset.safeApprove(exchange,0);\n        }\n        exchange = _exchange;\n        baseAsset.safeApprove(_exchange,type(uint256).max);\n        depositAsset.safeApprove(_exchange,type(uint256).max);\n        emit SetExchange(exchange);\n    }\n\n    /**\n        Set Fee Rate\n     */\n    function setFeeRate(uint256 _rate) external collectFee onlyOwner {\n        require(_rate > 0, \"INVALID_RATE\");\n\n        uint256 oldRate = feeRate;\n        feeRate = _rate;\n\n        emit SetFeeRate(oldRate, feeRate);\n    }\n\n    /**\n        Set MLR\n     */\n    function setMLR(uint256 _mlr,uint256 swapSlippage) external nonReentrant onlyOperator {\n        require(_mlr > 0 && _mlr < magnifier, \"INVALID_RATE\");\n        changeMLR(_mlr,swapSlippage);\n        uint256 oldMlr = mlr;\n        mlr = _mlr;\n\n        emit SetMLR(oldMlr, _mlr);\n    }\n}\n"
      },
      "/contracts/subStrategies/interfaces/IFlashloanReceiver.sol": {
        "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IFlashloanReceiver {\n    function getFee() external view returns (uint256 fee);\n\n    function flashLoan(address token, uint256 amount,bytes calldata userData) external;\n}\n"
      },
      "/contracts/subStrategies/interfaces/IExchange.sol": {
        "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IExchange {\n    function swap(address tokenIn,address tokenOut,uint256 amount,uint256 minAmount) external returns (uint256);\n    function getCurveInputValue(address tokenIn,address tokenOut,uint256 outAmount,uint256 maxInput)external view returns (uint256);\n}\n"
      },
      "/contracts/subStrategies/interfaces/IETHLeverage.sol": {
        "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IETHLeverage {\n    function loanFallback(uint256 loanAmt, uint256 feeAmt,bytes calldata userData) external;\n}\n"
      },
      "/contracts/subStrategies/interfaces/IAavePool.sol": {
        "content": "// SPDX-License-Identifier: MIT\r\npragma solidity ^0.8.0;\r\ninterface IAavePool {\r\n    function deposit(address asset,uint256 amount)external;\r\n    function aave() external view returns (address);\r\n    function convertAmount(address _tokenIn,address _tokenOut,uint256 _amount) external view returns (uint256);\r\n    function getCollateral(address _user) external view returns (uint256);\r\n    function getDebt(address _user) external view returns (uint256);\r\n    function getCollateralAndDebt(address _user)external view returns (uint256 _collateral, uint256 _debt);\r\n    function getCollateralMaxWithdraw(address _user) external view returns (uint256);\r\n\r\n    function getCollateralTo(address _user,address _token) external view returns (uint256);\r\n    function getDebtTo(address _user,address _token) external view returns (uint256);\r\n    function getCollateralAndDebtTo(address _user,address _token)external view returns (uint256 _collateral, uint256 _debt);\r\n    function getCollateralMaxWithdrawTo(address _user,address _token) external view returns (uint256);\r\n\r\n}"
      },
      "/contracts/subStrategies/interfaces/IAave.sol": {
        "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IAave {\n    function setUserEMode(uint8 categoryId) external;\n    function borrow(\n        address asset,\n        uint256 amount,\n        uint256 interestRateMode,\n        uint16 referralCode,\n        address onBehalfOf\n    ) external;\n\n    function deposit(\n        address asset,\n        uint256 amount,\n        address onBehalfOf,\n        uint16 referralCode\n    ) external;\n\n    function withdraw(\n        address asset,\n        uint256 amount,\n        address to\n    ) external returns (uint256);\n\n    function repay(\n        address asset,\n        uint256 amount,\n        uint256 rateMode,\n        address onBehalfOf\n    ) external returns (uint256);\n\n    function getUserAccountData(address)\n        external\n        view\n        returns (\n            uint256 totalCollateralETH,\n            uint256 totalDebtETH,\n            uint256 availableBorrowsETH,\n            uint256 currentLiquidationThreshold,\n            uint256 ltv,\n            uint256 healthFactor\n        );\n\n    function setUserUseReserveAsCollateral(address _reserse, bool _useAsCollateral) external;\n}\n"
      },
      "/contracts/interfaces/IVault.sol": {
        "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IVault {\n    function deposit(uint256 amount,uint256 minShares,address receiver) external returns (uint256 shares);\n    function withdraw(uint256 assets,uint256 minWithdraw,address receiver)external returns (uint256 shares);\n    function convertToShares(uint256 assets) external view returns (uint256);\n    function convertToAssets(uint256 shares) external view returns (uint256);\n    function mint(uint256 amount, address account) external;\n}\n"
      },
      "/contracts/interfaces/ISubStrategy.sol": {
        "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface ISubStrategy {\n    function totalAssets() external view returns (uint256);\n\n    function deposit(uint256 _amount) external returns (uint256);\n\n    function withdraw(uint256 _amount) external returns (uint256);\n\n    function maxDeposit() external view returns (uint256);\n\n    function withdrawable(uint256 _amount) external view returns (uint256);\n\n}\n"
      },
      "@openzeppelin/contracts/utils/Context.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Provides information about the current execution context, including the\n * sender of the transaction and its data. While these are generally available\n * via msg.sender and msg.data, they should not be accessed in such a direct\n * manner, since when dealing with meta-transactions the account sending and\n * paying for execution may not be the actual sender (as far as an application\n * is concerned).\n *\n * This contract is only required for intermediate, library-like contracts.\n */\nabstract contract Context {\n    function _msgSender() internal view virtual returns (address) {\n        return msg.sender;\n    }\n\n    function _msgData() internal view virtual returns (bytes calldata) {\n        return msg.data;\n    }\n}\n"
      },
      "@openzeppelin/contracts/utils/Address.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\n    /**\n     * @dev Returns true if `account` is a contract.\n     *\n     * [IMPORTANT]\n     * ====\n     * It is unsafe to assume that an address for which this function returns\n     * false is an externally-owned account (EOA) and not a contract.\n     *\n     * Among others, `isContract` will return false for the following\n     * types of addresses:\n     *\n     *  - an externally-owned account\n     *  - a contract in construction\n     *  - an address where a contract will be created\n     *  - an address where a contract lived, but was destroyed\n     * ====\n     *\n     * [IMPORTANT]\n     * ====\n     * You shouldn't rely on `isContract` to protect against flash loan attacks!\n     *\n     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n     * constructor.\n     * ====\n     */\n    function isContract(address account) internal view returns (bool) {\n        // This method relies on extcodesize/address.code.length, which returns 0\n        // for contracts in construction, since the code is only stored at the end\n        // of the constructor execution.\n\n        return account.code.length > 0;\n    }\n\n    /**\n     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n     * `recipient`, forwarding all available gas and reverting on errors.\n     *\n     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n     * of certain opcodes, possibly making contracts go over the 2300 gas limit\n     * imposed by `transfer`, making them unable to receive funds via\n     * `transfer`. {sendValue} removes this limitation.\n     *\n     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n     *\n     * IMPORTANT: because control is transferred to `recipient`, care must be\n     * taken to not create reentrancy vulnerabilities. Consider using\n     * {ReentrancyGuard} or the\n     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n     */\n    function sendValue(address payable recipient, uint256 amount) internal {\n        require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n        (bool success, ) = recipient.call{value: amount}(\"\");\n        require(success, \"Address: unable to send value, recipient may have reverted\");\n    }\n\n    /**\n     * @dev Performs a Solidity function call using a low level `call`. A\n     * plain `call` is an unsafe replacement for a function call: use this\n     * function instead.\n     *\n     * If `target` reverts with a revert reason, it is bubbled up by this\n     * function (like regular Solidity function calls).\n     *\n     * Returns the raw returned data. To convert to the expected return value,\n     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n     *\n     * Requirements:\n     *\n     * - `target` must be a contract.\n     * - calling `target` with `data` must not revert.\n     *\n     * _Available since v3.1._\n     */\n    function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, 0, \"Address: low-level call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n     * `errorMessage` as a fallback revert reason when `target` reverts.\n     *\n     * _Available since v3.1._\n     */\n    function functionCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, 0, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but also transferring `value` wei to `target`.\n     *\n     * Requirements:\n     *\n     * - the calling contract must have an ETH balance of at least `value`.\n     * - the called Solidity function must be `payable`.\n     *\n     * _Available since v3.1._\n     */\n    function functionCallWithValue(\n        address target,\n        bytes memory data,\n        uint256 value\n    ) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n     * with `errorMessage` as a fallback revert reason when `target` reverts.\n     *\n     * _Available since v3.1._\n     */\n    function functionCallWithValue(\n        address target,\n        bytes memory data,\n        uint256 value,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        require(address(this).balance >= value, \"Address: insufficient balance for call\");\n        (bool success, bytes memory returndata) = target.call{value: value}(data);\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but performing a static call.\n     *\n     * _Available since v3.3._\n     */\n    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n        return functionStaticCall(target, data, \"Address: low-level static call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n     * but performing a static call.\n     *\n     * _Available since v3.3._\n     */\n    function functionStaticCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal view returns (bytes memory) {\n        (bool success, bytes memory returndata) = target.staticcall(data);\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but performing a delegate call.\n     *\n     * _Available since v3.4._\n     */\n    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n        return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n     * but performing a delegate call.\n     *\n     * _Available since v3.4._\n     */\n    function functionDelegateCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        (bool success, bytes memory returndata) = target.delegatecall(data);\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling\n     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.\n     *\n     * _Available since v4.8._\n     */\n    function verifyCallResultFromTarget(\n        address target,\n        bool success,\n        bytes memory returndata,\n        string memory errorMessage\n    ) internal view returns (bytes memory) {\n        if (success) {\n            if (returndata.length == 0) {\n                // only check isContract if the call was successful and the return data is empty\n                // otherwise we already know that it was a contract\n                require(isContract(target), \"Address: call to non-contract\");\n            }\n            return returndata;\n        } else {\n            _revert(returndata, errorMessage);\n        }\n    }\n\n    /**\n     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the\n     * revert reason or using the provided one.\n     *\n     * _Available since v4.3._\n     */\n    function verifyCallResult(\n        bool success,\n        bytes memory returndata,\n        string memory errorMessage\n    ) internal pure returns (bytes memory) {\n        if (success) {\n            return returndata;\n        } else {\n            _revert(returndata, errorMessage);\n        }\n    }\n\n    function _revert(bytes memory returndata, string memory errorMessage) private pure {\n        // Look for revert reason and bubble it up if present\n        if (returndata.length > 0) {\n            // The easiest way to bubble the revert reason is using memory via assembly\n            /// @solidity memory-safe-assembly\n            assembly {\n                let returndata_size := mload(returndata)\n                revert(add(32, returndata), returndata_size)\n            }\n        } else {\n            revert(errorMessage);\n        }\n    }\n}\n"
      },
      "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC20/utils/SafeERC20.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC20.sol\";\nimport \"../extensions/draft-IERC20Permit.sol\";\nimport \"../../../utils/Address.sol\";\n\n/**\n * @title SafeERC20\n * @dev Wrappers around ERC20 operations that throw on failure (when the token\n * contract returns false). Tokens that return no value (and instead revert or\n * throw on failure) are also supported, non-reverting calls are assumed to be\n * successful.\n * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,\n * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.\n */\nlibrary SafeERC20 {\n    using Address for address;\n\n    function safeTransfer(\n        IERC20 token,\n        address to,\n        uint256 value\n    ) internal {\n        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));\n    }\n\n    function safeTransferFrom(\n        IERC20 token,\n        address from,\n        address to,\n        uint256 value\n    ) internal {\n        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));\n    }\n\n    /**\n     * @dev Deprecated. This function has issues similar to the ones found in\n     * {IERC20-approve}, and its usage is discouraged.\n     *\n     * Whenever possible, use {safeIncreaseAllowance} and\n     * {safeDecreaseAllowance} instead.\n     */\n    function safeApprove(\n        IERC20 token,\n        address spender,\n        uint256 value\n    ) internal {\n        // safeApprove should only be called when setting an initial allowance,\n        // or when resetting it to zero. To increase and decrease it, use\n        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'\n        require(\n            (value == 0) || (token.allowance(address(this), spender) == 0),\n            \"SafeERC20: approve from non-zero to non-zero allowance\"\n        );\n        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));\n    }\n\n    function safeIncreaseAllowance(\n        IERC20 token,\n        address spender,\n        uint256 value\n    ) internal {\n        uint256 newAllowance = token.allowance(address(this), spender) + value;\n        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\n    }\n\n    function safeDecreaseAllowance(\n        IERC20 token,\n        address spender,\n        uint256 value\n    ) internal {\n        unchecked {\n            uint256 oldAllowance = token.allowance(address(this), spender);\n            require(oldAllowance >= value, \"SafeERC20: decreased allowance below zero\");\n            uint256 newAllowance = oldAllowance - value;\n            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\n        }\n    }\n\n    function safePermit(\n        IERC20Permit token,\n        address owner,\n        address spender,\n        uint256 value,\n        uint256 deadline,\n        uint8 v,\n        bytes32 r,\n        bytes32 s\n    ) internal {\n        uint256 nonceBefore = token.nonces(owner);\n        token.permit(owner, spender, value, deadline, v, r, s);\n        uint256 nonceAfter = token.nonces(owner);\n        require(nonceAfter == nonceBefore + 1, \"SafeERC20: permit did not succeed\");\n    }\n\n    /**\n     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement\n     * on the return value: the return value is optional (but if data is returned, it must not be false).\n     * @param token The token targeted by the call.\n     * @param data The call data (encoded using abi.encode or one of its variants).\n     */\n    function _callOptionalReturn(IERC20 token, bytes memory data) private {\n        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since\n        // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that\n        // the target address contains contract code and also asserts for success in the low-level call.\n\n        bytes memory returndata = address(token).functionCall(data, \"SafeERC20: low-level call failed\");\n        if (returndata.length > 0) {\n            // Return data is optional\n            require(abi.decode(returndata, (bool)), \"SafeERC20: ERC20 operation did not succeed\");\n        }\n    }\n}\n"
      },
      "@openzeppelin/contracts/token/ERC20/extensions/draft-IERC20Permit.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in\n * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].\n *\n * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by\n * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't\n * need to send a transaction, and thus is not required to hold Ether at all.\n */\ninterface IERC20Permit {\n    /**\n     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,\n     * given ``owner``'s signed approval.\n     *\n     * IMPORTANT: The same issues {IERC20-approve} has related to transaction\n     * ordering also apply here.\n     *\n     * Emits an {Approval} event.\n     *\n     * Requirements:\n     *\n     * - `spender` cannot be the zero address.\n     * - `deadline` must be a timestamp in the future.\n     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`\n     * over the EIP712-formatted function arguments.\n     * - the signature must use ``owner``'s current nonce (see {nonces}).\n     *\n     * For more information on the signature format, see the\n     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP\n     * section].\n     */\n    function permit(\n        address owner,\n        address spender,\n        uint256 value,\n        uint256 deadline,\n        uint8 v,\n        bytes32 r,\n        bytes32 s\n    ) external;\n\n    /**\n     * @dev Returns the current nonce for `owner`. This value must be\n     * included whenever a signature is generated for {permit}.\n     *\n     * Every successful call to {permit} increases ``owner``'s nonce by one. This\n     * prevents a signature from being used multiple times.\n     */\n    function nonces(address owner) external view returns (uint256);\n\n    /**\n     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.\n     */\n    // solhint-disable-next-line func-name-mixedcase\n    function DOMAIN_SEPARATOR() external view returns (bytes32);\n}\n"
      },
      "@openzeppelin/contracts/token/ERC20/IERC20.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20 {\n    /**\n     * @dev Emitted when `value` tokens are moved from one account (`from`) to\n     * another (`to`).\n     *\n     * Note that `value` may be zero.\n     */\n    event Transfer(address indexed from, address indexed to, uint256 value);\n\n    /**\n     * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n     * a call to {approve}. `value` is the new allowance.\n     */\n    event Approval(address indexed owner, address indexed spender, uint256 value);\n\n    /**\n     * @dev Returns the amount of tokens in existence.\n     */\n    function totalSupply() external view returns (uint256);\n\n    /**\n     * @dev Returns the amount of tokens owned by `account`.\n     */\n    function balanceOf(address account) external view returns (uint256);\n\n    /**\n     * @dev Moves `amount` tokens from the caller's account to `to`.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transfer(address to, uint256 amount) external returns (bool);\n\n    /**\n     * @dev Returns the remaining number of tokens that `spender` will be\n     * allowed to spend on behalf of `owner` through {transferFrom}. This is\n     * zero by default.\n     *\n     * This value changes when {approve} or {transferFrom} are called.\n     */\n    function allowance(address owner, address spender) external view returns (uint256);\n\n    /**\n     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * IMPORTANT: Beware that changing an allowance with this method brings the risk\n     * that someone may use both the old and the new allowance by unfortunate\n     * transaction ordering. One possible solution to mitigate this race\n     * condition is to first reduce the spender's allowance to 0 and set the\n     * desired value afterwards:\n     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n     *\n     * Emits an {Approval} event.\n     */\n    function approve(address spender, uint256 amount) external returns (bool);\n\n    /**\n     * @dev Moves `amount` tokens from `from` to `to` using the\n     * allowance mechanism. `amount` is then deducted from the caller's\n     * allowance.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transferFrom(\n        address from,\n        address to,\n        uint256 amount\n    ) external returns (bool);\n}\n"
      },
      "@openzeppelin/contracts/security/ReentrancyGuard.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (security/ReentrancyGuard.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Contract module that helps prevent reentrant calls to a function.\n *\n * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier\n * available, which can be applied to functions to make sure there are no nested\n * (reentrant) calls to them.\n *\n * Note that because there is a single `nonReentrant` guard, functions marked as\n * `nonReentrant` may not call one another. This can be worked around by making\n * those functions `private`, and then adding `external` `nonReentrant` entry\n * points to them.\n *\n * TIP: If you would like to learn more about reentrancy and alternative ways\n * to protect against it, check out our blog post\n * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].\n */\nabstract contract ReentrancyGuard {\n    // Booleans are more expensive than uint256 or any type that takes up a full\n    // word because each write operation emits an extra SLOAD to first read the\n    // slot's contents, replace the bits taken up by the boolean, and then write\n    // back. This is the compiler's defense against contract upgrades and\n    // pointer aliasing, and it cannot be disabled.\n\n    // The values being non-zero value makes deployment a bit more expensive,\n    // but in exchange the refund on every call to nonReentrant will be lower in\n    // amount. Since refunds are capped to a percentage of the total\n    // transaction's gas, it is best to keep them low in cases like this one, to\n    // increase the likelihood of the full refund coming into effect.\n    uint256 private constant _NOT_ENTERED = 1;\n    uint256 private constant _ENTERED = 2;\n\n    uint256 private _status;\n\n    constructor() {\n        _status = _NOT_ENTERED;\n    }\n\n    /**\n     * @dev Prevents a contract from calling itself, directly or indirectly.\n     * Calling a `nonReentrant` function from another `nonReentrant`\n     * function is not supported. It is possible to prevent this from happening\n     * by making the `nonReentrant` function external, and making it call a\n     * `private` function that does the actual work.\n     */\n    modifier nonReentrant() {\n        _nonReentrantBefore();\n        _;\n        _nonReentrantAfter();\n    }\n\n    function _nonReentrantBefore() private {\n        // On the first call to nonReentrant, _status will be _NOT_ENTERED\n        require(_status != _ENTERED, \"ReentrancyGuard: reentrant call\");\n\n        // Any calls to nonReentrant after this point will fail\n        _status = _ENTERED;\n    }\n\n    function _nonReentrantAfter() private {\n        // By storing the original value once again, a refund is triggered (see\n        // https://eips.ethereum.org/EIPS/eip-2200)\n        _status = _NOT_ENTERED;\n    }\n}\n"
      },
      "@openzeppelin/contracts/access/Ownable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/Context.sol\";\n\n/**\n * @dev Contract module which provides a basic access control mechanism, where\n * there is an account (an owner) that can be granted exclusive access to\n * specific functions.\n *\n * By default, the owner account will be the one that deploys the contract. This\n * can later be changed with {transferOwnership}.\n *\n * This module is used through inheritance. It will make available the modifier\n * `onlyOwner`, which can be applied to your functions to restrict their use to\n * the owner.\n */\nabstract contract Ownable is Context {\n    address private _owner;\n\n    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\n\n    /**\n     * @dev Initializes the contract setting the deployer as the initial owner.\n     */\n    constructor() {\n        _transferOwnership(_msgSender());\n    }\n\n    /**\n     * @dev Throws if called by any account other than the owner.\n     */\n    modifier onlyOwner() {\n        _checkOwner();\n        _;\n    }\n\n    /**\n     * @dev Returns the address of the current owner.\n     */\n    function owner() public view virtual returns (address) {\n        return _owner;\n    }\n\n    /**\n     * @dev Throws if the sender is not the owner.\n     */\n    function _checkOwner() internal view virtual {\n        require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n    }\n\n    /**\n     * @dev Leaves the contract without owner. It will not be possible to call\n     * `onlyOwner` functions anymore. Can only be called by the current owner.\n     *\n     * NOTE: Renouncing ownership will leave the contract without an owner,\n     * thereby removing any functionality that is only available to the owner.\n     */\n    function renounceOwnership() public virtual onlyOwner {\n        _transferOwnership(address(0));\n    }\n\n    /**\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\n     * Can only be called by the current owner.\n     */\n    function transferOwnership(address newOwner) public virtual onlyOwner {\n        require(newOwner != address(0), \"Ownable: new owner is the zero address\");\n        _transferOwnership(newOwner);\n    }\n\n    /**\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\n     * Internal function without access restriction.\n     */\n    function _transferOwnership(address newOwner) internal virtual {\n        address oldOwner = _owner;\n        _owner = newOwner;\n        emit OwnershipTransferred(oldOwner, newOwner);\n    }\n}\n"
      }
    },
    "settings": {
      "remappings": [],
      "optimizer": {
        "enabled": true,
        "runs": 200
      },
      "evmVersion": "london",
      "libraries": {},
      "outputSelection": {
        "*": {
          "*": [
            "evm.bytecode",
            "evm.deployedBytecode",
            "devdoc",
            "userdoc",
            "metadata",
            "abi"
          ]
        }
      }
    }
  }}