creation_sourcecode: {{
    "language": "Solidity",
    "sources": {
      "GaugeV2.sol": {
        "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.15;\n\nimport \"../interfaces/IExtraReward.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\nimport \"@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol\";\nimport \"@openzeppelin/contracts/utils/math/Math.sol\";\nimport \"../interfaces/IGaugeV2.sol\";\nimport \"../interfaces/IGaugeController.sol\";\nimport \"./BaseGaugeV2.sol\";\nimport \"../interfaces/IVotingYFI.sol\";\nimport \"../interfaces/IDYfiRewardPool.sol\";\n\n/** @title  Gauge stake vault token get YFI rewards\n    @notice Deposit your vault token (one gauge per vault).\n    YFI are paid based on the number of vault tokens, the veYFI balance, and the duration of the lock.\n    @dev this contract is used behind multiple delegate proxies.\n */\n\ncontract GaugeV2 is BaseGaugeV2, ERC20Upgradeable, IGaugeV2 {\n    using SafeERC20 for IERC20;\n\n    struct Balance {\n        uint256 realBalance;\n        uint256 boostedBalance;\n    }\n\n    struct Approved {\n        bool claim;\n        bool lock;\n    }\n\n    uint256 public constant BOOSTING_FACTOR = 1;\n    uint256 public constant BOOST_DENOMINATOR = 10;\n\n    IERC20 public asset;\n    //// @notice veYFI\n    address public constant VEYFI = 0x90c1f9220d90d3966FbeE24045EDd73E1d588aD5;\n    //// @notice the veYFI YFI reward pool, penalty are sent to this contract.\n    address public constant VE_YFI_POOL = 0x2391Fc8f5E417526338F5aa3968b1851C16D894E;\n    uint256 public constant PRECISION_FACTOR = 10 ** 18;\n\n    IGaugeController public controller;\n\n    mapping(address => uint256) private _boostedBalances;\n    mapping(address => address) public recipients;\n\n    event TransferredPenalty(address indexed account, uint256 transfered);\n    event BoostedBalanceUpdated(address indexed account, uint256 amount);\n\n    event Initialize(address indexed asset, address indexed owner);\n\n    event RecipientUpdated(address indexed account, address indexed recipient);\n\n    constructor() initializer {}\n\n    /** @notice initialize the contract\n     *  @dev Initialize called after contract is cloned.\n     *  @param _asset The vault token to stake\n     *  @param _owner owner address\n     *  @param _controller gauge controller\n     *  @param _data additional data (unused in this version)\n     */\n    function initialize(address _asset, address _owner, address _controller, bytes memory _data) external initializer {\n        __initialize(_owner);\n        asset = IERC20(_asset);\n\n        require(_controller != address(0), \"_controller 0x0 address\");\n        controller = IGaugeController(_controller);\n\n        __ERC20_init(\n            string.concat(\"yGauge \", IERC20Metadata(_asset).name()),\n            string.concat(\"yG-\", IERC20Metadata(_asset).symbol())\n        );\n        emit Initialize(_asset, _owner);\n    }\n\n    /** @return total of the staked vault token\n     */\n    function totalAssets() public view returns (uint256) {\n        return totalSupply();\n    }\n\n    /**\n        The amount of shares that the Vault would exchange for the amount of assets provided.\n    */\n    function convertToShares(uint256 _assets) public view returns (uint256) {\n        return _assets;\n    }\n\n    /**\n        The amount of assets that the Vault would exchange for the amount of shares provided.\n    */\n    function convertToAssets(uint256 _shares) public view returns (uint256) {\n        return _shares;\n    }\n\n    /**\n    Maximum amount of the underlying asset that can be deposited into the Vault for the receiver, through a deposit call.\n    */\n    function maxDeposit(address) public view returns (uint256) {\n        return type(uint256).max;\n    }\n\n    /**\n    Allows an on-chain or off-chain user to simulate the effects of their deposit at the current block, given current on-chain conditions.\n    */\n    function previewDeposit(uint256 _assets) public view returns (uint256) {\n        return _assets;\n    }\n\n    /**\n    Maximum amount of shares that can be minted from the Vault for the receiver, through a mint call.\n    */\n    function maxMint(address) public view returns (uint256) {\n        return type(uint256).max;\n    }\n\n    /**\n    Allows an on-chain or off-chain user to simulate the effects of their mint at the current block, given current on-chain conditions.\n    */\n    function previewMint(uint256 _shares) public view returns (uint256) {\n        return _shares;\n    }\n\n    /** @param _account to look balance for\n     *  @return amount of staked token for an account\n     */\n    function boostedBalanceOf(\n        address _account\n    ) external view returns (uint256) {\n        return _boostedBalances[_account];\n    }\n\n    /** @notice\n     *   Performs a snapshot of the account's accrued rewards since the previous update.\n     *  @dev\n     *   The snapshot made by this function depends on:\n     *    1. The account's boosted balance\n     *    2. The amount of reward emissions that have been added to the gauge since the\n     *       account's rewards were last updated.\n     *   Any function that mutates an account's balance, boostedBalance, userRewardPerTokenPaid,\n     *   or rewards MUST call updateReward before performing the mutation.\n     */\n    function _updateReward(address _account) internal override {\n        if (block.timestamp >= periodFinish && totalAssets() > 0) {\n            // new epoch. first sync rewards to end of old epoch\n            rewardPerTokenStored = _rewardPerToken();\n            // get new rewards\n            (uint256 cumulative, uint256 current, uint256 start) = controller.claim();\n            uint256 delta = cumulative - current - historicalRewards;\n            if (delta > 0) {\n                // account for fully missed epochs, if any\n                rewardPerTokenStored += delta * PRECISION_FACTOR / totalAssets();\n            }\n            // forward to beginning of epoch\n            uint256 finish = start + DURATION;\n            uint256 rate = current * PRECISION_FACTOR / DURATION;\n\n            lastUpdateTime = start;\n            periodFinish = finish;\n            rewardRate = rate;\n            historicalRewards = cumulative;\n\n            emit RewardsAdded(current, start, finish, rate, cumulative);\n        }\n\n        rewardPerTokenStored = _rewardPerToken();\n        lastUpdateTime = lastTimeRewardApplicable();\n        if (_account != address(0)) {\n            if (_boostedBalances[_account] != 0) {\n                uint256 newEarning = _newEarning(_account);\n                uint256 maxEarning = _maxEarning(_account);\n\n                rewards[_account] += newEarning;\n                uint256 penalty = maxEarning - newEarning;\n                _transferVeYfiORewards(penalty);\n                emit TransferredPenalty(_account, penalty);\n            }\n            userRewardPerTokenPaid[_account] = rewardPerTokenStored;\n            emit UpdatedRewards(\n                _account,\n                rewardPerTokenStored,\n                lastUpdateTime,\n                rewards[_account],\n                userRewardPerTokenPaid[_account]\n            );\n        }\n    }\n\n    function _beforeTokenTransfer(\n        address _from,\n        address _to,\n        uint256\n    ) internal override {\n        if (_from != address(0)) {\n            _updateReward(_from);\n        }\n        if (_to != address(0)) {\n            _updateReward(_to);\n        }\n    }\n\n    function _afterTokenTransfer(\n        address _from,\n        address _to,\n        uint256\n    ) internal override {\n        if (_from != address(0)) {\n            _boostedBalances[_from] = _boostedBalanceOf(_from);\n            emit BoostedBalanceUpdated(_from, _boostedBalances[_from]);\n        }\n        if (_to != address(0)) {\n            _boostedBalances[_to] = _boostedBalanceOf(_to);\n            emit BoostedBalanceUpdated(_to, _boostedBalances[_to]);\n        }\n    }\n\n    function _rewardPerToken() internal view override returns (uint256) {\n        if (totalAssets() == 0) {\n            return rewardPerTokenStored;\n        }\n        return\n            rewardPerTokenStored +\n            (((lastTimeRewardApplicable() - lastUpdateTime) *\n                rewardRate) / totalAssets());\n    }\n\n    /** @notice The total undistributed earnings for an account.\n     *  @dev Earnings are based on lock duration and boost\n     *  @return\n     *   Amount of tokens the account has earned that have yet to be distributed.\n     */\n    function earned(\n        address _account\n    ) external view override(BaseGaugeV2, IBaseGauge) returns (uint256) {\n        uint256 newEarning = _newEarning(_account);\n\n        return newEarning + rewards[_account];\n    }\n\n    /** @notice Calculates an account's earnings based on their boostedBalance.\n     *   This function only reflects the accounts earnings since the last time\n     *   the account's rewards were calculated via _updateReward.\n     */\n    function _newEarning(\n        address _account\n    ) internal view override returns (uint256) {\n        return\n            (_boostedBalances[_account] *\n                (_rewardPerToken() - userRewardPerTokenPaid[_account])) /\n            PRECISION_FACTOR;\n    }\n\n    /** @notice Calculates an account's potential maximum earnings based on\n     *   a maximum boost.\n     *   This function only reflects the accounts earnings since the last time\n     *   the account's rewards were calculated via _updateReward.\n     */\n    function _maxEarning(address _account) internal view returns (uint256) {\n        return\n            (balanceOf(_account) *\n                (_rewardPerToken() - userRewardPerTokenPaid[_account])) /\n            PRECISION_FACTOR;\n    }\n\n    /** @notice\n     *   Calculates the boosted balance of based on veYFI balance.\n     *  @dev\n     *   This function expects this._totalAssets to be up to date.\n     *  @return\n     *   The account's boosted balance. Always lower than or equal to the\n     *   account's real balance.\n     */\n    function nextBoostedBalanceOf(\n        address _account\n    ) external view returns (uint256) {\n        return _boostedBalanceOf(_account);\n    }\n\n    /** @notice\n     *   Calculates the boosted balance of based on veYFI balance.\n     *  @dev\n     *    This function expects the account's _balances[_account].realBalance\n     *    to be up to date.\n     *  @dev This function expects this._totalAssets to be up to date.\n     *  @return\n     *   The account's boosted balance. Always lower than or equal to the\n     *   account's real balance.\n     */\n    function _boostedBalanceOf(\n        address _account\n    ) internal view returns (uint256) {\n        return _boostedBalanceOf(_account, balanceOf(_account));\n    }\n\n    /** @notice\n     *   Calculates the boosted balance of an account based on its gauge stake\n     *   proportion & veYFI lock proportion.\n     *  @dev This function expects this._totalAssets to be up to date.\n     *  @param _account The account whose veYFI lock should be checked.\n     *  @param _realBalance The amount of token _account has locked in the gauge.\n     *  @return\n     *   The account's boosted balance. Always lower than or equal to the\n     *   account's real balance.\n     */\n    function _boostedBalanceOf(\n        address _account,\n        uint256 _realBalance\n    ) internal view returns (uint256) {\n        uint256 veTotalSupply = IVotingYFI(VEYFI).totalSupply();\n        if (veTotalSupply == 0) {\n            return _realBalance;\n        }\n        return\n            Math.min(\n                ((_realBalance * BOOSTING_FACTOR) +\n                    (((totalSupply() * IVotingYFI(VEYFI).balanceOf(_account)) /\n                        veTotalSupply) *\n                        (BOOST_DENOMINATOR - BOOSTING_FACTOR))) /\n                    BOOST_DENOMINATOR,\n                _realBalance\n            );\n    }\n\n    /** @notice deposit vault tokens into the gauge\n     *  @dev a user without a veYFI should not lock.\n     *  @dev will deposit the min between user balance and user approval\n     *  @dev This call updates claimable rewards\n     *  @return amount of assets deposited\n     */\n    function deposit() external returns (uint256) {\n        uint256 balance = Math.min(\n            asset.balanceOf(msg.sender),\n            asset.allowance(msg.sender, address(this))\n        );\n        _deposit(balance, msg.sender);\n        return balance;\n    }\n\n    /** @notice deposit vault tokens into the gauge\n     *  @dev a user without a veYFI should not lock.\n     *  @dev This call updates claimable rewards\n     *  @param _assets of vault token\n     *  @return amount  of assets deposited\n     */\n    function deposit(uint256 _assets) external returns (uint256) {\n        _deposit(_assets, msg.sender);\n        return _assets;\n    }\n\n    /** @notice deposit vault tokens into the gauge for a user\n     *   @dev vault token is taken from msg.sender\n     *   @dev This call update  `_for` claimable rewards\n     *   @param _assets to deposit\n     *   @param _receiver the account to deposit to\n     *   @return true\n     */\n    function deposit(\n        uint256 _assets,\n        address _receiver\n    ) external returns (uint256) {\n        _deposit(_assets, _receiver);\n        return _assets;\n    }\n\n    /** @notice deposit vault tokens into the gauge for a user\n     *   @dev vault token is taken from msg.sender\n     *   @dev This call update  `_for` claimable rewards\n     *   @dev shares and\n     *   @param _shares to deposit\n     *   @param _receiver the account to deposit to\n     *   @return amount of shares transfered\n     */\n    function mint(\n        uint256 _shares,\n        address _receiver\n    ) external returns (uint256) {\n        _deposit(_shares, _receiver);\n        return _shares;\n    }\n\n    function _deposit(uint256 _assets, address _receiver) internal {\n        require(_assets != 0, \"RewardPool : Cannot deposit 0\");\n\n        //take away from sender\n        asset.safeTransferFrom(msg.sender, address(this), _assets);\n\n        // mint shares\n        _mint(_receiver, _assets);\n\n        emit Deposit(msg.sender, _receiver, _assets, _assets);\n    }\n\n    /**\n      Maximum amount of the underlying asset that can be withdrawn from the owner balance in the Vault, through a withdraw call.\n    */\n    function maxWithdraw(address _owner) external view returns (uint256) {\n        return balanceOf(_owner);\n    }\n\n    function previewWithdraw(uint256 _assets) external view returns (uint256) {\n        return _assets;\n    }\n\n    /** @notice Burns shares from owner and sends exactly assets of underlying tokens to receiver.\n     *  @dev This call updates claimable rewards\n     *  @param _assets amount to withdraw\n     *  @param _receiver account that will recieve the shares\n     *  @param _owner shares will be taken from account\n     *  @param _claim claim veYFI and additional reward\n     *  @return amount of shares withdrawn\n     */\n    function withdraw(\n        uint256 _assets,\n        address _receiver,\n        address _owner,\n        bool _claim\n    ) external returns (uint256) {\n        return _withdraw(_assets, _receiver, _owner, _claim);\n    }\n\n    /** @notice Burns shares from owner and sends exactly assets of underlying tokens to receiver.\n     *  @dev This call updates claimable rewards\n     *  @param _assets amount to withdraw\n     *  @param _receiver account that will recieve the shares\n     *  @param _owner shares will be taken from account\n     *  @return amount of shares withdrawn\n     */\n    function withdraw(\n        uint256 _assets,\n        address _receiver,\n        address _owner\n    ) external returns (uint256) {\n        return _withdraw(_assets, _receiver, _owner, false);\n    }\n\n    /** @notice withdraw all vault tokens from gauge\n     *   @dev This call updates claimable rewards\n     *   @param _claim claim veYFI and additional reward\n     *  @return amount of shares withdrawn\n     */\n    function withdraw(bool _claim) external returns (uint256) {\n        return _withdraw(balanceOf(msg.sender), msg.sender, msg.sender, _claim);\n    }\n\n    /** @notice withdraw all vault token from gauge\n     *  @dev This call update claimable rewards\n     *  @return amount of shares withdrawn\n     */\n    function withdraw() external returns (uint256) {\n        return _withdraw(balanceOf(msg.sender), msg.sender, msg.sender, false);\n    }\n\n    function _withdraw(\n        uint256 _assets,\n        address _receiver,\n        address _owner,\n        bool _claim\n    ) internal returns (uint256) {\n        require(_assets != 0, \"RewardPool : Cannot withdraw 0\");\n\n        if (msg.sender != _owner) {\n            _spendAllowance(_owner, msg.sender, _assets);\n        }\n\n        _burn(_owner, _assets);\n\n        if (_claim) {\n            _getReward(_owner);\n        }\n\n        asset.safeTransfer(_receiver, _assets);\n        emit Withdraw(msg.sender, _receiver, _owner, _assets, _assets);\n\n        return _assets;\n    }\n\n    function maxRedeem(address _owner) external view returns (uint256) {\n        return balanceOf(_owner);\n    }\n\n    function previewRedeem(uint256 _assets) external view returns (uint256) {\n        return _assets;\n    }\n\n    /** @notice Burns shares from owner and sends exactly assets of underlying tokens to receiver.\n     *  @dev This call updates claimable rewards\n     *  @param _assets amount to withdraw\n     *  @param _receiver account that will recieve the shares\n     *  @param _owner shares will be taken from account\n     *  @return amount of shares withdrawn\n     */\n    function redeem(\n        uint256 _assets,\n        address _receiver,\n        address _owner\n    ) external override returns (uint256) {\n        return _withdraw(_assets, _receiver, _owner, true);\n    }\n\n    /**\n     * @notice\n     *  Get rewards\n     * @return true\n     */\n    function getReward() external updateReward(msg.sender) returns (bool) {\n        _getReward(msg.sender);\n        return true;\n    }\n\n    /**\n     * @notice\n     *  Get rewards for an account\n     * @dev rewards are transferred to _account\n     * @param _account to claim rewards for\n     * @return true\n     */\n    function getReward(\n        address _account\n    ) external updateReward(_account) returns (bool) {\n        _getReward(_account);\n\n        return true;\n    }\n\n    /** @notice Distributes the rewards for the specified account.\n     *  @dev\n     *   This function MUST NOT be called without the caller invoking\n     *   updateReward(_account) first.\n     */\n    function _getReward(address _account) internal {\n        uint256 boostedBalance = _boostedBalanceOf(_account);\n        _boostedBalances[_account] = boostedBalance;\n        emit BoostedBalanceUpdated(_account, boostedBalance);\n\n        uint256 reward = rewards[_account];\n        if (reward != 0) {\n            rewards[_account] = 0;\n            address recipient = recipients[_account];\n            if (recipient != address(0x0)) {\n                REWARD_TOKEN.safeTransfer(recipient, reward);\n            } else {\n                REWARD_TOKEN.safeTransfer(_account, reward);\n            }\n            emit RewardPaid(_account, reward);\n        }\n    }\n\n    function _transferVeYfiORewards(uint256 _penalty) internal {\n        IERC20(REWARD_TOKEN).approve(VE_YFI_POOL, _penalty);\n        IDYfiRewardPool(VE_YFI_POOL).burn(_penalty);\n    }\n\n    function _protectedTokens(\n        address _token\n    ) internal view override returns (bool) {\n        return _token == address(REWARD_TOKEN) || _token == address(asset);\n    }\n\n    /**\n    @notice Kick `addr` for abusing their boost\n    @param _accounts Addresses to kick\n    */\n    function kick(address[] calldata _accounts) public {\n        for (uint256 i = 0; i < _accounts.length; ++i) {\n            _kick(_accounts[i]);\n        }\n    }\n\n    function _kick(address _account) internal updateReward(_account) {\n        uint256 balance = balanceOf(_account);\n        uint256 boostedBalance = _boostedBalanceOf(_account, balance);\n        _boostedBalances[_account] = boostedBalance;\n        emit BoostedBalanceUpdated(_account, boostedBalance);\n    }\n\n    /**\n    @notice Set the recipient of rewards for an account\n    @param _recipient Address to send rewards to\n    */\n    function setRecipient(address _recipient) external {\n        recipients[msg.sender] = _recipient;\n        emit RecipientUpdated(msg.sender, _recipient);\n    }\n\n    /**\n    @notice set the new gauge controller\n    @param _newController new gauge controller address\n     */\n    function setController(\n        address _newController\n    ) external onlyOwner {\n        require(_newController != address(0), \"controller should not be empty\");\n        controller = IGaugeController(_newController);\n    }\n}\n"
      },
      "BaseGaugeV2.sol": {
        "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.15;\nimport \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\nimport \"@openzeppelin/contracts/utils/math/Math.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol\";\nimport \"@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol\";\nimport \"../interfaces/IBaseGauge.sol\";\n\nabstract contract BaseGaugeV2 is IBaseGauge, OwnableUpgradeable {\n    IERC20 public constant REWARD_TOKEN = IERC20(0x41252E8691e964f7DE35156B68493bAb6797a275);\n    uint256 constant DURATION = 14 days;\n    uint256 public periodFinish;\n    uint256 public rewardRate;\n    uint256 public lastUpdateTime;\n    uint256 public rewardPerTokenStored;\n    uint256 public historicalRewards;\n\n    mapping(address => uint256) public userRewardPerTokenPaid;\n    mapping(address => uint256) public rewards;\n\n    event RewardsAdded(\n        uint256 currentRewards,\n        uint256 lastUpdateTime,\n        uint256 periodFinish,\n        uint256 rewardRate,\n        uint256 historicalRewards\n    );\n\n    event RewardsQueued(address indexed from, uint256 amount);\n\n    event RewardPaid(address indexed user, uint256 reward);\n    event UpdatedRewards(\n        address indexed account,\n        uint256 rewardPerTokenStored,\n        uint256 lastUpdateTime,\n        uint256 rewards,\n        uint256 userRewardPerTokenPaid\n    );\n    event Sweep(address indexed token, uint256 amount);\n\n    function _newEarning(address) internal view virtual returns (uint256);\n\n    function _updateReward(address) internal virtual;\n\n    function _rewardPerToken() internal view virtual returns (uint256);\n\n    modifier updateReward(address account) {\n        _updateReward(account);\n        _;\n    }\n\n    function __initialize(address _owner) internal {\n        require(_owner != address(0), \"_owner 0x0 address\");\n        _transferOwnership(_owner);\n    }\n\n    /**\n     *  @return timestamp until rewards are distributed\n     */\n    function lastTimeRewardApplicable() public view returns (uint256) {\n        return Math.min(block.timestamp, periodFinish);\n    }\n\n    /** @notice reward per token deposited\n     *  @dev gives the total amount of rewards distributed since the inception of the pool.\n     *  @return rewardPerToken\n     */\n    function rewardPerToken() external view returns (uint256) {\n        return _rewardPerToken();\n    }\n\n    function _protectedTokens(\n        address _token\n    ) internal view virtual returns (bool) {\n        return _token == address(REWARD_TOKEN);\n    }\n\n    /** @notice sweep tokens that are airdropped/transferred into the gauge.\n     *  @dev sweep can only be done on non-protected tokens.\n     *  @return _token to sweep\n     */\n    function sweep(address _token) external onlyOwner returns (bool) {\n        require(_protectedTokens(_token) == false, \"protected token\");\n        uint256 amount = IERC20(_token).balanceOf(address(this));\n\n        SafeERC20.safeTransfer(IERC20(_token), owner(), amount);\n        emit Sweep(_token, amount);\n        return true;\n    }\n\n    /** @notice earnings for an account\n     *  @dev earnings are based on lock duration and boost\n     *  @return amount of tokens earned\n     */\n    function earned(address _account) external view virtual returns (uint256) {\n        return _newEarning(_account);\n    }\n}\n"
      },
      "interfaces/IBaseGauge.sol": {
        "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.15;\nimport \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\n\ninterface IBaseGauge {\n    function earned(address _account) external view returns (uint256);\n}\n"
      },
      ".cache/openzeppelin/v4.8.1/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"
      },
      ".cache/openzeppelin/v4.8.1/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"
      },
      ".cache/openzeppelin/v4.8.1/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"
      },
      ".cache/openzeppelin/v4.8.1/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"
      },
      ".cache/openzeppelin/v4.8.1/utils/math/Math.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/Math.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Standard math utilities missing in the Solidity language.\n */\nlibrary Math {\n    enum Rounding {\n        Down, // Toward negative infinity\n        Up, // Toward infinity\n        Zero // Toward zero\n    }\n\n    /**\n     * @dev Returns the largest of two numbers.\n     */\n    function max(uint256 a, uint256 b) internal pure returns (uint256) {\n        return a > b ? a : b;\n    }\n\n    /**\n     * @dev Returns the smallest of two numbers.\n     */\n    function min(uint256 a, uint256 b) internal pure returns (uint256) {\n        return a < b ? a : b;\n    }\n\n    /**\n     * @dev Returns the average of two numbers. The result is rounded towards\n     * zero.\n     */\n    function average(uint256 a, uint256 b) internal pure returns (uint256) {\n        // (a + b) / 2 can overflow.\n        return (a & b) + (a ^ b) / 2;\n    }\n\n    /**\n     * @dev Returns the ceiling of the division of two numbers.\n     *\n     * This differs from standard division with `/` in that it rounds up instead\n     * of rounding down.\n     */\n    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {\n        // (a + b - 1) / b can overflow on addition, so we distribute.\n        return a == 0 ? 0 : (a - 1) / b + 1;\n    }\n\n    /**\n     * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0\n     * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)\n     * with further edits by Uniswap Labs also under MIT license.\n     */\n    function mulDiv(\n        uint256 x,\n        uint256 y,\n        uint256 denominator\n    ) internal pure returns (uint256 result) {\n        unchecked {\n            // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use\n            // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256\n            // variables such that product = prod1 * 2^256 + prod0.\n            uint256 prod0; // Least significant 256 bits of the product\n            uint256 prod1; // Most significant 256 bits of the product\n            assembly {\n                let mm := mulmod(x, y, not(0))\n                prod0 := mul(x, y)\n                prod1 := sub(sub(mm, prod0), lt(mm, prod0))\n            }\n\n            // Handle non-overflow cases, 256 by 256 division.\n            if (prod1 == 0) {\n                return prod0 / denominator;\n            }\n\n            // Make sure the result is less than 2^256. Also prevents denominator == 0.\n            require(denominator > prod1);\n\n            ///////////////////////////////////////////////\n            // 512 by 256 division.\n            ///////////////////////////////////////////////\n\n            // Make division exact by subtracting the remainder from [prod1 prod0].\n            uint256 remainder;\n            assembly {\n                // Compute remainder using mulmod.\n                remainder := mulmod(x, y, denominator)\n\n                // Subtract 256 bit number from 512 bit number.\n                prod1 := sub(prod1, gt(remainder, prod0))\n                prod0 := sub(prod0, remainder)\n            }\n\n            // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.\n            // See https://cs.stackexchange.com/q/138556/92363.\n\n            // Does not overflow because the denominator cannot be zero at this stage in the function.\n            uint256 twos = denominator & (~denominator + 1);\n            assembly {\n                // Divide denominator by twos.\n                denominator := div(denominator, twos)\n\n                // Divide [prod1 prod0] by twos.\n                prod0 := div(prod0, twos)\n\n                // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.\n                twos := add(div(sub(0, twos), twos), 1)\n            }\n\n            // Shift in bits from prod1 into prod0.\n            prod0 |= prod1 * twos;\n\n            // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such\n            // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for\n            // four bits. That is, denominator * inv = 1 mod 2^4.\n            uint256 inverse = (3 * denominator) ^ 2;\n\n            // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works\n            // in modular arithmetic, doubling the correct bits in each step.\n            inverse *= 2 - denominator * inverse; // inverse mod 2^8\n            inverse *= 2 - denominator * inverse; // inverse mod 2^16\n            inverse *= 2 - denominator * inverse; // inverse mod 2^32\n            inverse *= 2 - denominator * inverse; // inverse mod 2^64\n            inverse *= 2 - denominator * inverse; // inverse mod 2^128\n            inverse *= 2 - denominator * inverse; // inverse mod 2^256\n\n            // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.\n            // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is\n            // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1\n            // is no longer required.\n            result = prod0 * inverse;\n            return result;\n        }\n    }\n\n    /**\n     * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.\n     */\n    function mulDiv(\n        uint256 x,\n        uint256 y,\n        uint256 denominator,\n        Rounding rounding\n    ) internal pure returns (uint256) {\n        uint256 result = mulDiv(x, y, denominator);\n        if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {\n            result += 1;\n        }\n        return result;\n    }\n\n    /**\n     * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.\n     *\n     * Inspired by Henry S. Warren, Jr.'s \"Hacker's Delight\" (Chapter 11).\n     */\n    function sqrt(uint256 a) internal pure returns (uint256) {\n        if (a == 0) {\n            return 0;\n        }\n\n        // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.\n        //\n        // We know that the \"msb\" (most significant bit) of our target number `a` is a power of 2 such that we have\n        // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.\n        //\n        // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`\n        // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`\n        // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`\n        //\n        // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.\n        uint256 result = 1 << (log2(a) >> 1);\n\n        // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,\n        // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at\n        // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision\n        // into the expected uint128 result.\n        unchecked {\n            result = (result + a / result) >> 1;\n            result = (result + a / result) >> 1;\n            result = (result + a / result) >> 1;\n            result = (result + a / result) >> 1;\n            result = (result + a / result) >> 1;\n            result = (result + a / result) >> 1;\n            result = (result + a / result) >> 1;\n            return min(result, a / result);\n        }\n    }\n\n    /**\n     * @notice Calculates sqrt(a), following the selected rounding direction.\n     */\n    function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {\n        unchecked {\n            uint256 result = sqrt(a);\n            return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);\n        }\n    }\n\n    /**\n     * @dev Return the log in base 2, rounded down, of a positive value.\n     * Returns 0 if given 0.\n     */\n    function log2(uint256 value) internal pure returns (uint256) {\n        uint256 result = 0;\n        unchecked {\n            if (value >> 128 > 0) {\n                value >>= 128;\n                result += 128;\n            }\n            if (value >> 64 > 0) {\n                value >>= 64;\n                result += 64;\n            }\n            if (value >> 32 > 0) {\n                value >>= 32;\n                result += 32;\n            }\n            if (value >> 16 > 0) {\n                value >>= 16;\n                result += 16;\n            }\n            if (value >> 8 > 0) {\n                value >>= 8;\n                result += 8;\n            }\n            if (value >> 4 > 0) {\n                value >>= 4;\n                result += 4;\n            }\n            if (value >> 2 > 0) {\n                value >>= 2;\n                result += 2;\n            }\n            if (value >> 1 > 0) {\n                result += 1;\n            }\n        }\n        return result;\n    }\n\n    /**\n     * @dev Return the log in base 2, following the selected rounding direction, of a positive value.\n     * Returns 0 if given 0.\n     */\n    function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {\n        unchecked {\n            uint256 result = log2(value);\n            return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);\n        }\n    }\n\n    /**\n     * @dev Return the log in base 10, rounded down, of a positive value.\n     * Returns 0 if given 0.\n     */\n    function log10(uint256 value) internal pure returns (uint256) {\n        uint256 result = 0;\n        unchecked {\n            if (value >= 10**64) {\n                value /= 10**64;\n                result += 64;\n            }\n            if (value >= 10**32) {\n                value /= 10**32;\n                result += 32;\n            }\n            if (value >= 10**16) {\n                value /= 10**16;\n                result += 16;\n            }\n            if (value >= 10**8) {\n                value /= 10**8;\n                result += 8;\n            }\n            if (value >= 10**4) {\n                value /= 10**4;\n                result += 4;\n            }\n            if (value >= 10**2) {\n                value /= 10**2;\n                result += 2;\n            }\n            if (value >= 10**1) {\n                result += 1;\n            }\n        }\n        return result;\n    }\n\n    /**\n     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.\n     * Returns 0 if given 0.\n     */\n    function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {\n        unchecked {\n            uint256 result = log10(value);\n            return result + (rounding == Rounding.Up && 10**result < value ? 1 : 0);\n        }\n    }\n\n    /**\n     * @dev Return the log in base 256, rounded down, of a positive value.\n     * Returns 0 if given 0.\n     *\n     * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.\n     */\n    function log256(uint256 value) internal pure returns (uint256) {\n        uint256 result = 0;\n        unchecked {\n            if (value >> 128 > 0) {\n                value >>= 128;\n                result += 16;\n            }\n            if (value >> 64 > 0) {\n                value >>= 64;\n                result += 8;\n            }\n            if (value >> 32 > 0) {\n                value >>= 32;\n                result += 4;\n            }\n            if (value >> 16 > 0) {\n                value >>= 16;\n                result += 2;\n            }\n            if (value >> 8 > 0) {\n                result += 1;\n            }\n        }\n        return result;\n    }\n\n    /**\n     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.\n     * Returns 0 if given 0.\n     */\n    function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {\n        unchecked {\n            uint256 result = log256(value);\n            return result + (rounding == Rounding.Up && 1 << (result * 8) < value ? 1 : 0);\n        }\n    }\n}\n"
      },
      ".cache/openzeppelin-upgradeable/v4.8.1/access/OwnableUpgradeable.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/ContextUpgradeable.sol\";\nimport \"../proxy/utils/Initializable.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 OwnableUpgradeable is Initializable, ContextUpgradeable {\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    function __Ownable_init() internal onlyInitializing {\n        __Ownable_init_unchained();\n    }\n\n    function __Ownable_init_unchained() internal onlyInitializing {\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    /**\n     * @dev This empty reserved space is put in place to allow future versions to add new\n     * variables without shifting down storage in the inheritance chain.\n     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n     */\n    uint256[49] private __gap;\n}\n"
      },
      ".cache/openzeppelin-upgradeable/v4.8.1/utils/ContextUpgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)\n\npragma solidity ^0.8.0;\nimport \"../proxy/utils/Initializable.sol\";\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 ContextUpgradeable is Initializable {\n    function __Context_init() internal onlyInitializing {\n    }\n\n    function __Context_init_unchained() internal onlyInitializing {\n    }\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    /**\n     * @dev This empty reserved space is put in place to allow future versions to add new\n     * variables without shifting down storage in the inheritance chain.\n     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n     */\n    uint256[50] private __gap;\n}\n"
      },
      ".cache/openzeppelin-upgradeable/v4.8.1/proxy/utils/Initializable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.1) (proxy/utils/Initializable.sol)\n\npragma solidity ^0.8.2;\n\nimport \"../../utils/AddressUpgradeable.sol\";\n\n/**\n * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed\n * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an\n * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer\n * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.\n *\n * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be\n * reused. This mechanism prevents re-execution of each \"step\" but allows the creation of new initialization steps in\n * case an upgrade adds a module that needs to be initialized.\n *\n * For example:\n *\n * [.hljs-theme-light.nopadding]\n * ```\n * contract MyToken is ERC20Upgradeable {\n *     function initialize() initializer public {\n *         __ERC20_init(\"MyToken\", \"MTK\");\n *     }\n * }\n * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {\n *     function initializeV2() reinitializer(2) public {\n *         __ERC20Permit_init(\"MyToken\");\n *     }\n * }\n * ```\n *\n * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as\n * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.\n *\n * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure\n * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.\n *\n * [CAUTION]\n * ====\n * Avoid leaving a contract uninitialized.\n *\n * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation\n * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke\n * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:\n *\n * [.hljs-theme-light.nopadding]\n * ```\n * /// @custom:oz-upgrades-unsafe-allow constructor\n * constructor() {\n *     _disableInitializers();\n * }\n * ```\n * ====\n */\nabstract contract Initializable {\n    /**\n     * @dev Indicates that the contract has been initialized.\n     * @custom:oz-retyped-from bool\n     */\n    uint8 private _initialized;\n\n    /**\n     * @dev Indicates that the contract is in the process of being initialized.\n     */\n    bool private _initializing;\n\n    /**\n     * @dev Triggered when the contract has been initialized or reinitialized.\n     */\n    event Initialized(uint8 version);\n\n    /**\n     * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,\n     * `onlyInitializing` functions can be used to initialize parent contracts.\n     *\n     * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a\n     * constructor.\n     *\n     * Emits an {Initialized} event.\n     */\n    modifier initializer() {\n        bool isTopLevelCall = !_initializing;\n        require(\n            (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),\n            \"Initializable: contract is already initialized\"\n        );\n        _initialized = 1;\n        if (isTopLevelCall) {\n            _initializing = true;\n        }\n        _;\n        if (isTopLevelCall) {\n            _initializing = false;\n            emit Initialized(1);\n        }\n    }\n\n    /**\n     * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the\n     * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be\n     * used to initialize parent contracts.\n     *\n     * A reinitializer may be used after the original initialization step. This is essential to configure modules that\n     * are added through upgrades and that require initialization.\n     *\n     * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`\n     * cannot be nested. If one is invoked in the context of another, execution will revert.\n     *\n     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in\n     * a contract, executing them in the right order is up to the developer or operator.\n     *\n     * WARNING: setting the version to 255 will prevent any future reinitialization.\n     *\n     * Emits an {Initialized} event.\n     */\n    modifier reinitializer(uint8 version) {\n        require(!_initializing && _initialized < version, \"Initializable: contract is already initialized\");\n        _initialized = version;\n        _initializing = true;\n        _;\n        _initializing = false;\n        emit Initialized(version);\n    }\n\n    /**\n     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the\n     * {initializer} and {reinitializer} modifiers, directly or indirectly.\n     */\n    modifier onlyInitializing() {\n        require(_initializing, \"Initializable: contract is not initializing\");\n        _;\n    }\n\n    /**\n     * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.\n     * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized\n     * to any version. It is recommended to use this to lock implementation contracts that are designed to be called\n     * through proxies.\n     *\n     * Emits an {Initialized} event the first time it is successfully executed.\n     */\n    function _disableInitializers() internal virtual {\n        require(!_initializing, \"Initializable: contract is initializing\");\n        if (_initialized < type(uint8).max) {\n            _initialized = type(uint8).max;\n            emit Initialized(type(uint8).max);\n        }\n    }\n\n    /**\n     * @dev Returns the highest version that has been initialized. See {reinitializer}.\n     */\n    function _getInitializedVersion() internal view returns (uint8) {\n        return _initialized;\n    }\n\n    /**\n     * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.\n     */\n    function _isInitializing() internal view returns (bool) {\n        return _initializing;\n    }\n}\n"
      },
      ".cache/openzeppelin-upgradeable/v4.8.1/utils/AddressUpgradeable.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 AddressUpgradeable {\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 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"
      },
      "interfaces/IExtraReward.sol": {
        "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.15;\nimport \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\nimport \"./IBaseGauge.sol\";\n\ninterface IExtraReward is IBaseGauge {\n    function initialize(\n        address _gauge,\n        address _reward,\n        address _owner\n    ) external;\n\n    function rewardCheckpoint(address _account) external returns (bool);\n\n    function getReward() external returns (bool);\n}\n"
      },
      "interfaces/IDYfiRewardPool.sol": {
        "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.15;\n\ninterface IDYfiRewardPool {\n    function burn(uint256 _amount) external returns (bool);\n}\n"
      },
      "interfaces/IGaugeController.sol": {
        "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.15;\n\ninterface IGaugeController {\n    function claim() external returns (uint256, uint256, uint256);\n}\n"
      },
      "interfaces/IVotingYFI.sol": {
        "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.15;\nimport \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\n\ninterface IVotingYFI is IERC20 {\n    struct LockedBalance {\n        int128 amount;\n        uint256 end;\n    }\n\n    function totalSupply() external view returns (uint256);\n\n    function locked(address _user) external view returns (LockedBalance memory);\n\n    function modify_lock(\n        uint256 _amount,\n        uint256 _unlock_time,\n        address _user\n    ) external;\n}\n"
      },
      ".cache/openzeppelin-upgradeable/v4.8.1/token/ERC20/ERC20Upgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC20/ERC20.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC20Upgradeable.sol\";\nimport \"./extensions/IERC20MetadataUpgradeable.sol\";\nimport \"../../utils/ContextUpgradeable.sol\";\nimport \"../../proxy/utils/Initializable.sol\";\n\n/**\n * @dev Implementation of the {IERC20} interface.\n *\n * This implementation is agnostic to the way tokens are created. This means\n * that a supply mechanism has to be added in a derived contract using {_mint}.\n * For a generic mechanism see {ERC20PresetMinterPauser}.\n *\n * TIP: For a detailed writeup see our guide\n * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How\n * to implement supply mechanisms].\n *\n * We have followed general OpenZeppelin Contracts guidelines: functions revert\n * instead returning `false` on failure. This behavior is nonetheless\n * conventional and does not conflict with the expectations of ERC20\n * applications.\n *\n * Additionally, an {Approval} event is emitted on calls to {transferFrom}.\n * This allows applications to reconstruct the allowance for all accounts just\n * by listening to said events. Other implementations of the EIP may not emit\n * these events, as it isn't required by the specification.\n *\n * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}\n * functions have been added to mitigate the well-known issues around setting\n * allowances. See {IERC20-approve}.\n */\ncontract ERC20Upgradeable is Initializable, ContextUpgradeable, IERC20Upgradeable, IERC20MetadataUpgradeable {\n    mapping(address => uint256) private _balances;\n\n    mapping(address => mapping(address => uint256)) private _allowances;\n\n    uint256 private _totalSupply;\n\n    string private _name;\n    string private _symbol;\n\n    /**\n     * @dev Sets the values for {name} and {symbol}.\n     *\n     * The default value of {decimals} is 18. To select a different value for\n     * {decimals} you should overload it.\n     *\n     * All two of these values are immutable: they can only be set once during\n     * construction.\n     */\n    function __ERC20_init(string memory name_, string memory symbol_) internal onlyInitializing {\n        __ERC20_init_unchained(name_, symbol_);\n    }\n\n    function __ERC20_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing {\n        _name = name_;\n        _symbol = symbol_;\n    }\n\n    /**\n     * @dev Returns the name of the token.\n     */\n    function name() public view virtual override returns (string memory) {\n        return _name;\n    }\n\n    /**\n     * @dev Returns the symbol of the token, usually a shorter version of the\n     * name.\n     */\n    function symbol() public view virtual override returns (string memory) {\n        return _symbol;\n    }\n\n    /**\n     * @dev Returns the number of decimals used to get its user representation.\n     * For example, if `decimals` equals `2`, a balance of `505` tokens should\n     * be displayed to a user as `5.05` (`505 / 10 ** 2`).\n     *\n     * Tokens usually opt for a value of 18, imitating the relationship between\n     * Ether and Wei. This is the value {ERC20} uses, unless this function is\n     * overridden;\n     *\n     * NOTE: This information is only used for _display_ purposes: it in\n     * no way affects any of the arithmetic of the contract, including\n     * {IERC20-balanceOf} and {IERC20-transfer}.\n     */\n    function decimals() public view virtual override returns (uint8) {\n        return 18;\n    }\n\n    /**\n     * @dev See {IERC20-totalSupply}.\n     */\n    function totalSupply() public view virtual override returns (uint256) {\n        return _totalSupply;\n    }\n\n    /**\n     * @dev See {IERC20-balanceOf}.\n     */\n    function balanceOf(address account) public view virtual override returns (uint256) {\n        return _balances[account];\n    }\n\n    /**\n     * @dev See {IERC20-transfer}.\n     *\n     * Requirements:\n     *\n     * - `to` cannot be the zero address.\n     * - the caller must have a balance of at least `amount`.\n     */\n    function transfer(address to, uint256 amount) public virtual override returns (bool) {\n        address owner = _msgSender();\n        _transfer(owner, to, amount);\n        return true;\n    }\n\n    /**\n     * @dev See {IERC20-allowance}.\n     */\n    function allowance(address owner, address spender) public view virtual override returns (uint256) {\n        return _allowances[owner][spender];\n    }\n\n    /**\n     * @dev See {IERC20-approve}.\n     *\n     * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on\n     * `transferFrom`. This is semantically equivalent to an infinite approval.\n     *\n     * Requirements:\n     *\n     * - `spender` cannot be the zero address.\n     */\n    function approve(address spender, uint256 amount) public virtual override returns (bool) {\n        address owner = _msgSender();\n        _approve(owner, spender, amount);\n        return true;\n    }\n\n    /**\n     * @dev See {IERC20-transferFrom}.\n     *\n     * Emits an {Approval} event indicating the updated allowance. This is not\n     * required by the EIP. See the note at the beginning of {ERC20}.\n     *\n     * NOTE: Does not update the allowance if the current allowance\n     * is the maximum `uint256`.\n     *\n     * Requirements:\n     *\n     * - `from` and `to` cannot be the zero address.\n     * - `from` must have a balance of at least `amount`.\n     * - the caller must have allowance for ``from``'s tokens of at least\n     * `amount`.\n     */\n    function transferFrom(\n        address from,\n        address to,\n        uint256 amount\n    ) public virtual override returns (bool) {\n        address spender = _msgSender();\n        _spendAllowance(from, spender, amount);\n        _transfer(from, to, amount);\n        return true;\n    }\n\n    /**\n     * @dev Atomically increases the allowance granted to `spender` by the caller.\n     *\n     * This is an alternative to {approve} that can be used as a mitigation for\n     * problems described in {IERC20-approve}.\n     *\n     * Emits an {Approval} event indicating the updated allowance.\n     *\n     * Requirements:\n     *\n     * - `spender` cannot be the zero address.\n     */\n    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {\n        address owner = _msgSender();\n        _approve(owner, spender, allowance(owner, spender) + addedValue);\n        return true;\n    }\n\n    /**\n     * @dev Atomically decreases the allowance granted to `spender` by the caller.\n     *\n     * This is an alternative to {approve} that can be used as a mitigation for\n     * problems described in {IERC20-approve}.\n     *\n     * Emits an {Approval} event indicating the updated allowance.\n     *\n     * Requirements:\n     *\n     * - `spender` cannot be the zero address.\n     * - `spender` must have allowance for the caller of at least\n     * `subtractedValue`.\n     */\n    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {\n        address owner = _msgSender();\n        uint256 currentAllowance = allowance(owner, spender);\n        require(currentAllowance >= subtractedValue, \"ERC20: decreased allowance below zero\");\n        unchecked {\n            _approve(owner, spender, currentAllowance - subtractedValue);\n        }\n\n        return true;\n    }\n\n    /**\n     * @dev Moves `amount` of tokens from `from` to `to`.\n     *\n     * This internal function is equivalent to {transfer}, and can be used to\n     * e.g. implement automatic token fees, slashing mechanisms, etc.\n     *\n     * Emits a {Transfer} event.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `from` must have a balance of at least `amount`.\n     */\n    function _transfer(\n        address from,\n        address to,\n        uint256 amount\n    ) internal virtual {\n        require(from != address(0), \"ERC20: transfer from the zero address\");\n        require(to != address(0), \"ERC20: transfer to the zero address\");\n\n        _beforeTokenTransfer(from, to, amount);\n\n        uint256 fromBalance = _balances[from];\n        require(fromBalance >= amount, \"ERC20: transfer amount exceeds balance\");\n        unchecked {\n            _balances[from] = fromBalance - amount;\n            // Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by\n            // decrementing then incrementing.\n            _balances[to] += amount;\n        }\n\n        emit Transfer(from, to, amount);\n\n        _afterTokenTransfer(from, to, amount);\n    }\n\n    /** @dev Creates `amount` tokens and assigns them to `account`, increasing\n     * the total supply.\n     *\n     * Emits a {Transfer} event with `from` set to the zero address.\n     *\n     * Requirements:\n     *\n     * - `account` cannot be the zero address.\n     */\n    function _mint(address account, uint256 amount) internal virtual {\n        require(account != address(0), \"ERC20: mint to the zero address\");\n\n        _beforeTokenTransfer(address(0), account, amount);\n\n        _totalSupply += amount;\n        unchecked {\n            // Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above.\n            _balances[account] += amount;\n        }\n        emit Transfer(address(0), account, amount);\n\n        _afterTokenTransfer(address(0), account, amount);\n    }\n\n    /**\n     * @dev Destroys `amount` tokens from `account`, reducing the\n     * total supply.\n     *\n     * Emits a {Transfer} event with `to` set to the zero address.\n     *\n     * Requirements:\n     *\n     * - `account` cannot be the zero address.\n     * - `account` must have at least `amount` tokens.\n     */\n    function _burn(address account, uint256 amount) internal virtual {\n        require(account != address(0), \"ERC20: burn from the zero address\");\n\n        _beforeTokenTransfer(account, address(0), amount);\n\n        uint256 accountBalance = _balances[account];\n        require(accountBalance >= amount, \"ERC20: burn amount exceeds balance\");\n        unchecked {\n            _balances[account] = accountBalance - amount;\n            // Overflow not possible: amount <= accountBalance <= totalSupply.\n            _totalSupply -= amount;\n        }\n\n        emit Transfer(account, address(0), amount);\n\n        _afterTokenTransfer(account, address(0), amount);\n    }\n\n    /**\n     * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.\n     *\n     * This internal function is equivalent to `approve`, and can be used to\n     * e.g. set automatic allowances for certain subsystems, etc.\n     *\n     * Emits an {Approval} event.\n     *\n     * Requirements:\n     *\n     * - `owner` cannot be the zero address.\n     * - `spender` cannot be the zero address.\n     */\n    function _approve(\n        address owner,\n        address spender,\n        uint256 amount\n    ) internal virtual {\n        require(owner != address(0), \"ERC20: approve from the zero address\");\n        require(spender != address(0), \"ERC20: approve to the zero address\");\n\n        _allowances[owner][spender] = amount;\n        emit Approval(owner, spender, amount);\n    }\n\n    /**\n     * @dev Updates `owner` s allowance for `spender` based on spent `amount`.\n     *\n     * Does not update the allowance amount in case of infinite allowance.\n     * Revert if not enough allowance is available.\n     *\n     * Might emit an {Approval} event.\n     */\n    function _spendAllowance(\n        address owner,\n        address spender,\n        uint256 amount\n    ) internal virtual {\n        uint256 currentAllowance = allowance(owner, spender);\n        if (currentAllowance != type(uint256).max) {\n            require(currentAllowance >= amount, \"ERC20: insufficient allowance\");\n            unchecked {\n                _approve(owner, spender, currentAllowance - amount);\n            }\n        }\n    }\n\n    /**\n     * @dev Hook that is called before any transfer of tokens. This includes\n     * minting and burning.\n     *\n     * Calling conditions:\n     *\n     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n     * will be transferred to `to`.\n     * - when `from` is zero, `amount` tokens will be minted for `to`.\n     * - when `to` is zero, `amount` of ``from``'s tokens will be burned.\n     * - `from` and `to` are never both zero.\n     *\n     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n     */\n    function _beforeTokenTransfer(\n        address from,\n        address to,\n        uint256 amount\n    ) internal virtual {}\n\n    /**\n     * @dev Hook that is called after any transfer of tokens. This includes\n     * minting and burning.\n     *\n     * Calling conditions:\n     *\n     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n     * has been transferred to `to`.\n     * - when `from` is zero, `amount` tokens have been minted for `to`.\n     * - when `to` is zero, `amount` of ``from``'s tokens have been burned.\n     * - `from` and `to` are never both zero.\n     *\n     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n     */\n    function _afterTokenTransfer(\n        address from,\n        address to,\n        uint256 amount\n    ) internal virtual {}\n\n    /**\n     * @dev This empty reserved space is put in place to allow future versions to add new\n     * variables without shifting down storage in the inheritance chain.\n     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n     */\n    uint256[45] private __gap;\n}\n"
      },
      ".cache/openzeppelin-upgradeable/v4.8.1/token/ERC20/extensions/IERC20MetadataUpgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC20Upgradeable.sol\";\n\n/**\n * @dev Interface for the optional metadata functions from the ERC20 standard.\n *\n * _Available since v4.1._\n */\ninterface IERC20MetadataUpgradeable is IERC20Upgradeable {\n    /**\n     * @dev Returns the name of the token.\n     */\n    function name() external view returns (string memory);\n\n    /**\n     * @dev Returns the symbol of the token.\n     */\n    function symbol() external view returns (string memory);\n\n    /**\n     * @dev Returns the decimals places of the token.\n     */\n    function decimals() external view returns (uint8);\n}\n"
      },
      ".cache/openzeppelin-upgradeable/v4.8.1/token/ERC20/IERC20Upgradeable.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 IERC20Upgradeable {\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"
      },
      "interfaces/IGaugeV2.sol": {
        "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.15;\nimport \"./IBaseGauge.sol\";\nimport \"./IERC4626.sol\";\n\ninterface IGaugeV2 is IBaseGauge, IERC4626 {\n    function initialize(address _stakingToken, address _owner, address _controller, bytes memory _data) external;\n\n    function boostedBalanceOf(address _account) external view returns (uint256);\n\n    function getReward(address _account) external returns (bool);\n}\n"
      },
      "interfaces/IERC4626.sol": {
        "content": "// SPDX-License-Identifier: MIT\n\npragma solidity 0.8.15;\n\nimport \"@openzeppelin/contracts-upgradeable/token/ERC20/IERC20Upgradeable.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\n\n/**\n * @title EIP 4626 specification\n * @notice Interface of EIP 4626 Interface\n * as defined in https://eips.ethereum.org/EIPS/eip-4626\n */\ninterface IERC4626 is IERC20Upgradeable {\n    /**\n     * @notice Event indicating that `caller` exchanged `assets` for `shares`, and transferred those `shares` to `owner`\n     * @dev Emitted when tokens are deposited into the vault via {mint} and {deposit} methods\n     */\n    event Deposit(\n        address indexed caller,\n        address indexed owner,\n        uint256 assets,\n        uint256 shares\n    );\n\n    /**\n     * @notice Event indicating that `caller` exchanged `shares`, owned by `owner`, for `assets`, and transferred those\n     * `assets` to `receiver`\n     * @dev Emitted when shares are withdrawn from the vault via {redeem} or {withdraw} methods\n     */\n    event Withdraw(\n        address indexed caller,\n        address indexed receiver,\n        address indexed owner,\n        uint256 assets,\n        uint256 shares\n    );\n\n    /**\n     * @notice Returns the address of the underlying token used by the Vault\n     * @return assetTokenAddress The address of the underlying ERC20 Token\n     * @dev MUST be an ERC-20 token contract\n     *\n     * MUST not revert\n     */\n    function asset() external view returns (IERC20 assetTokenAddress);\n\n    /**\n     * @notice Returns the total amount of the underlying asset managed by the Vault\n     * @return totalManagedAssets Amount of the underlying asset\n     * @dev Should include any compounding that occurs from yield.\n     *\n     * Should be inclusive of any fees that are charged against assets in the vault.\n     *\n     * Must not revert\n     *\n     */\n    function totalAssets() external view returns (uint256 totalManagedAssets);\n\n    /**\n     *\n     * @notice Returns the amount of shares that, in an ideal scenario, the vault would exchange for the amount of assets\n     * provided\n     *\n     * @param _assets Amount of assets to convert\n     * @return shares Amount of shares that would be exchanged for the provided amount of assets\n     *\n     * @dev MUST NOT be inclusive of any fees that are charged against assets in the Vault.\n     *\n     * MUST NOT show any variations depending on the caller.\n     *\n     * MUST NOT reflect slippage or other on-chain conditions, when performing the actual exchange.\n     *\n     * MUST NOT revert unless due to integer overflow caused by an unreasonably large input.\n     *\n     * MUST round down towards 0.\n     *\n     * This calculation MAY NOT reflect the “per-user” price-per-share, and instead should reflect the\n     * “average-user’s” price-per-share, meaning what the average user should expect to see when exchanging to and from.\n     */\n    function convertToShares(\n        uint256 _assets\n    ) external view returns (uint256 shares);\n\n    /**\n     *\n     * @notice Returns the amount of assets that the vault would exchange for the amount of shares provided\n     *\n     * @param _shares Amount of vault shares to convert\n     * @return assets Amount of assets that would be exchanged for the provided amount of shares\n     *\n     * @dev MUST NOT be inclusive of any fees that are charged against assets in the Vault.\n     *\n     * MUST NOT show any variations depending on the caller.\n     *\n     * MUST NOT reflect slippage or other on-chain conditions, when performing the actual exchange.\n     *\n     * MUST NOT revert unless due to integer overflow caused by an unreasonably large input.\n     *\n     * MUST round down towards 0.\n     *\n     * This calculation MAY NOT reflect the “per-user” price-per-share, and instead should reflect the\n     * “average-user’s” price-per-share, meaning what the average user should expect to see when exchanging to and from.\n     */\n    function convertToAssets(\n        uint256 _shares\n    ) external view returns (uint256 assets);\n\n    /**\n     *\n     * @notice Returns the maximum amount of the underlying asset that can be deposited into the vault for the `receiver`\n     * through a {deposit} call\n     *\n     * @param _receiver Address whose maximum deposit is being queries\n     * @return maxAssets\n     *\n     * @dev MUST return the maximum amount of assets {deposit} would allow to be deposited for receiver and not cause a\n     * revert, which MUST NOT be higher than the actual maximum that would be accepted (it should underestimate if\n     *necessary). This assumes that the user has infinite assets, i.e. MUST NOT rely on {balanceOf} of asset.\n     *\n     * MUST factor in both global and user-specific limits, like if deposits are entirely disabled (even temporarily)\n     * it MUST return 0.\n     *\n     * MUST return 2 ** 256 - 1 if there is no limit on the maximum amount of assets that may be deposited.\n     *\n     * MUST NOT revert.\n     */\n    function maxDeposit(\n        address _receiver\n    ) external view returns (uint256 maxAssets);\n\n    /**\n     * @notice Simulate the effects of a user's deposit at the current block, given current on-chain conditions\n     * @param _assets Amount of assets\n     * @return shares Amount of shares\n     * @dev MUST return as close to and no more than the exact amount of Vault shares that would be minted in a {deposit}\n     * call in the same transaction. I.e. deposit should return the same or more shares as {previewDeposit} if called in\n     * the same transaction. (I.e. {previewDeposit} should underestimate or round-down)\n     *\n     * MUST NOT account for deposit limits like those returned from maxDeposit and should always act as though the\n     * deposit would be accepted, regardless if the user has enough tokens approved, etc.\n     *\n     * MUST be inclusive of deposit fees. Integrators should be aware of the existence of deposit fees.\n     *\n     * MUST NOT revert due to vault specific user/global limits. MAY revert due to other conditions that would also\n     * cause deposit to revert.\n     *\n     * Note that any unfavorable discrepancy between convertToShares and previewDeposit SHOULD be considered slippage\n     * in share price or some other type of condition, meaning the depositor will lose assets by depositing.\n     */\n    function previewDeposit(\n        uint256 _assets\n    ) external view returns (uint256 shares);\n\n    /**\n     * @notice Mints `shares` Vault shares to `receiver` by depositing exactly `amount` of underlying tokens\n     * @param _assets Amount of assets\n     * @param _receiver Address to deposit underlying tokens into\n     * @dev Must emit the {Deposit} event\n     *\n     * MUST support ERC-20 {approve} / {transferFrom} on asset as a deposit flow. MAY support an additional flow in\n     * which the underlying tokens are owned by the Vault contract before the {deposit} execution, and are accounted for\n     * during {deposit}.\n     *\n     * MUST revert if all of `assets` cannot be deposited (due to deposit limit being reached, slippage, the user not\n     * approving enough underlying tokens to the Vault contract, etc).\n     *\n     * Note that most implementations will require pre-approval of the Vault with the Vault’s underlying asset token.\n     */\n    function deposit(\n        uint256 _assets,\n        address _receiver\n    ) external returns (uint256 shares);\n\n    /**\n     * @notice Returns the maximum amount of shares that can be minted from the vault for the `receiver``, via a `mint`\n     * call\n     * @param _receiver Address to deposit minted shares into\n     * @return maxShares The maximum amount of shares\n     * @dev MUST return the maximum amount of shares mint would allow to be deposited to receiver and not cause a revert,\n     * which MUST NOT be higher than the actual maximum that would be accepted (it should underestimate if necessary).\n     * This assumes that the user has infinite assets, i.e. MUST NOT rely on balanceOf of asset.\n     *\n     * MUST factor in both global and user-specific limits, like if mints are entirely disabled (even temporarily) it\n     *\n     * MUST return 0.\n     *\n     * MUST return 2 ** 256 - 1 if there is no limit on the maximum amount of shares that may be minted.\n     *\n     * MUST NOT revert.\n     */\n    function maxMint(\n        address _receiver\n    ) external view returns (uint256 maxShares);\n\n    /**\n     * @notice Simulate the effects of a user's mint at the current block, given current on-chain conditions\n     * @param _shares Amount of shares to mint\n     * @return assets Amount of assets required to mint `mint` amount of shares\n     * @dev MUST return as close to and no fewer than the exact amount of assets that would be deposited in a mint call\n     * in the same transaction. I.e. mint should return the same or fewer assets as previewMint if called in the same\n     * transaction. (I.e. {previewMint} should overestimate or round-up)\n     *\n     * MUST NOT account for mint limits like those returned from maxMint and should always act as though the mint\n     * would be accepted, regardless if the user has enough tokens approved, etc.\n     *\n     * MUST be inclusive of deposit fees. Integrators should be aware of the existence of deposit fees.\n     *\n     * MUST NOT revert due to vault specific user/global limits. MAY revert due to other conditions that would also\n     * cause mint to revert.\n     *\n     * Note that any unfavorable discrepancy between convertToAssets and previewMint SHOULD be considered slippage in\n     * share price or some other type of condition, meaning the depositor will lose assets by minting.\n     */\n    function previewMint(\n        uint256 _shares\n    ) external view returns (uint256 assets);\n\n    /**\n     * @notice Mints exactly `shares` vault shares to `receiver` by depositing `amount` of underlying tokens\n     * @param _shares Amount of shares to mint\n     * @param _receiver Address to deposit minted shares into\n     * @return assets Amount of assets transferred to vault\n     * @dev Must emit the {Deposit} event\n     *\n     * MUST support ERC-20 {approve} / {transferFrom} on asset as a mint flow. MAY support an additional flow in\n     *  which the underlying tokens are owned by the Vault contract before the mint execution, and are accounted for\n     * during mint.\n     *\n     * MUST revert if all of `shares` cannot be minted (due to deposit limit being reached, slippage, the user not\n     * approving enough underlying tokens to the Vault contract, etc).\n     *\n     * Note that most implementations will require pre-approval of the Vault with the Vault’s underlying asset token.\n     */\n    function mint(\n        uint256 _shares,\n        address _receiver\n    ) external returns (uint256 assets);\n\n    /**\n     * @notice Returns the maximum amount of the underlying asset that can be withdrawn from the `owner` balance in the\n     * vault, through a `withdraw` call.\n     * @param _owner Address of the owner whose max withdrawal amount is being queries\n     * @return maxAssets Maximum amount of underlying asset that can be withdrawn\n     * @dev MUST return the maximum amount of assets that could be transferred from `owner` through {withdraw} and not\n     * cause a revert, which MUST NOT be higher than the actual maximum that would be accepted (it should underestimate if\n     * necessary).\n     *\n     * MUST factor in both global and user-specific limits, like if withdrawals are entirely disabled\n     * (even temporarily)  it MUST return 0.\n     *\n     * MUST NOT revert.\n     */\n    function maxWithdraw(\n        address _owner\n    ) external view returns (uint256 maxAssets);\n\n    /**\n     * @notice Simulate the effects of a user's withdrawal at the current block, given current on-chain conditions.\n     * @param _assets Amount of assets\n     * @return shares Amount of shares\n     * @dev MUST return as close to and no fewer than the exact amount of Vault shares that would be burned in a\n     * {withdraw} call in the same transaction. I.e. {withdraw} should return the same or fewer shares as\n     * {previewWithdraw} if called in the same transaction. (I.e. {previewWithdraw should overestimate or round-up})\n     *\n     * MUST NOT account for withdrawal limits like those returned from {maxWithdraw} and should always act as though\n     * the withdrawal would be accepted, regardless if the user has enough shares, etc.\n     *\n     * MUST be inclusive of withdrawal fees. Integrators should be aware of the existence of withdrawal fees.\n     *\n     * MUST NOT revert due to vault specific user/global limits. MAY revert due to other conditions that would also\n     * cause {withdraw} to revert.\n     *\n     * Note that any unfavorable discrepancy between convertToShares and previewWithdraw SHOULD be considered slippage in\n     * share price or some other type of condition, meaning the depositor will lose assets by depositing.\n     */\n    function previewWithdraw(\n        uint256 _assets\n    ) external view returns (uint256 shares);\n\n    /**\n     * @notice Burns `shares` from `owner` and sends exactly `assets` of underlying tokens to `receiver`\n     * @param _assets Amount of underling assets to withdraw\n     * @return shares Amount of shares that will be burned\n     * @dev Must emit the {Withdraw} event\n     *\n     * MUST support a withdraw flow where the shares are burned from `owner` directly where `owner` is `msg.sender`\n     * or `msg.sender` has ERC-20 approval over the shares of `owner`. MAY support an additional flow in which the shares\n     * are transferred to the Vault contract before the withdraw execution, and are accounted for during withdraw.\n     *\n     * MUST revert if all of assets cannot be withdrawn (due to withdrawal limit being reached, slippage, the owner\n     * not having enough shares, etc).\n     *\n     * Note that some implementations will require pre-requesting to the Vault before a withdrawal may be performed.\n     *  Those methods should be performed separately.\n     */\n    function withdraw(\n        uint256 _assets,\n        address _receiver,\n        address _owner\n    ) external returns (uint256 shares);\n\n    /**\n     * @notice Returns the maximum amount of vault shares that can be redeemed from the `owner` balance in the vault, via\n     * a `redeem` call.\n     * @param _owner Address of the owner whose shares are being queries\n     * @return maxShares Maximum amount of shares that can be redeemed\n     * @dev MUST return the maximum amount of shares that could be transferred from `owner` through `redeem` and not cause\n     * a revert, which MUST NOT be higher than the actual maximum that would be accepted (it should underestimate if\n     * necessary).\n     *\n     * MUST factor in both global and user-specific limits, like if redemption is entirely disabled\n     * (even temporarily) it MUST return 0.\n     *\n     * MUST NOT revert\n     */\n    function maxRedeem(\n        address _owner\n    ) external view returns (uint256 maxShares);\n\n    /**\n     * @notice Simulate the effects of a user's redemption at the current block, given current on-chain conditions\n     * @param _shares Amount of shares that are being simulated to be redeemed\n     * @return assets Amount of underlying assets that can be redeemed\n     * @dev MUST return as close to and no more than the exact amount of `assets `that would be withdrawn in a {redeem}\n     * call in the same transaction. I.e. {redeem} should return the same or more assets as {previewRedeem} if called in\n     * the same transaction. I.e. {previewRedeem} should underestimate/round-down\n     *\n     * MUST NOT account for redemption limits like those returned from {maxRedeem} and should always act as though\n     * the redemption would be accepted, regardless if the user has enough shares, etc.\n     *\n     * MUST be inclusive of withdrawal fees. Integrators should be aware of the existence of withdrawal fees.\n     *\n     * MUST NOT revert due to vault specific user/global limits. MAY revert due to other conditions that would also\n     * cause {redeem} to revert.\n     *\n     * Note that any unfavorable discrepancy between {convertToAssets} and {previewRedeem} SHOULD be considered\n     * slippage in share price or some other type of condition, meaning the depositor will lose assets by redeeming.\n     */\n    function previewRedeem(\n        uint256 _shares\n    ) external view returns (uint256 assets);\n\n    /**\n     * @notice Burns exactly `shares` from `owner` and sends `assets` of underlying tokens to `receiver`\n     * @param _shares Amount of shares to burn\n     * @param _receiver Address to deposit redeemed underlying tokens to\n     * @return assets Amount of underlying tokens redeemed\n     * @dev Must emit the {Withdraw} event\n     * MUST support a {redeem} flow where the shares are burned from owner directly where `owner` is `msg.sender` or\n     *\n     * `msg.sender` has ERC-20 approval over the shares of `owner`. MAY support an additional flow in which the shares\n     * are transferred to the Vault contract before the {redeem} execution, and are accounted for during {redeem}.\n     *\n     * MUST revert if all of {shares} cannot be redeemed (due to withdrawal limit being reached, slippage, the owner\n     * not having enough shares, etc).\n     *\n     * Note that some implementations will require pre-requesting to the Vault before a withdrawal may be performed.\n     * Those methods should be performed separately.\n     */\n    function redeem(\n        uint256 _shares,\n        address _receiver,\n        address _owner\n    ) external returns (uint256 assets);\n}\n"
      },
      ".cache/openzeppelin/v4.8.1/token/ERC20/extensions/IERC20Metadata.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC20.sol\";\n\n/**\n * @dev Interface for the optional metadata functions from the ERC20 standard.\n *\n * _Available since v4.1._\n */\ninterface IERC20Metadata is IERC20 {\n    /**\n     * @dev Returns the name of the token.\n     */\n    function name() external view returns (string memory);\n\n    /**\n     * @dev Returns the symbol of the token.\n     */\n    function symbol() external view returns (string memory);\n\n    /**\n     * @dev Returns the decimals places of the token.\n     */\n    function decimals() external view returns (uint8);\n}\n"
      }
    },
    "settings": {
      "optimizer": {
        "enabled": true,
        "runs": 200
      },
      "outputSelection": {
        "*": {
          "*": [
            "evm.bytecode",
            "evm.deployedBytecode",
            "abi"
          ]
        }
      },
      "remappings": [
        "@openzeppelin/contracts-upgradeable=.cache/openzeppelin-upgradeable/v4.8.1",
        "@openzeppelin/contracts=.cache/openzeppelin/v4.8.1"
      ]
    }
  }}