creation_sourcecode: {{
    "language": "Solidity",
    "sources": {
      "contracts/feeDistributor/FeeDistributor.sol": {
        "content": "// SPDX-FileCopyrightText: 2023 P2P Validator <info@p2p.org>\n// SPDX-License-Identifier: MIT\n\npragma solidity 0.8.10;\n\nimport \"../@openzeppelin/contracts/security/ReentrancyGuard.sol\";\nimport \"../@openzeppelin/contracts/utils/introspection/ERC165.sol\";\nimport \"../@openzeppelin/contracts/utils/introspection/ERC165Checker.sol\";\nimport \"../feeDistributorFactory/IFeeDistributorFactory.sol\";\nimport \"../assetRecovering/OwnableTokenRecoverer.sol\";\nimport \"./IFeeDistributor.sol\";\nimport \"../oracle/IOracle.sol\";\n\n/**\n* @notice Should be a Oracle contract\n* @param _passedAddress passed address that does not support IOracle interface\n*/\nerror FeeDistributor__NotOracle(address _passedAddress);\n\n/**\n* @notice Initial client-only CL rewards must be zero\n* @param _firstValidatorId passed value for firstValidatorId\n*/\nerror FeeDistributor__InvalidFirstValidatorId(uint64 _firstValidatorId);\n\n/**\n* @notice Initial client-only CL rewards must be zero\n* @param _validatorCount passed value for validatorCount\n*/\nerror FeeDistributor__InvalidValidatorCount(uint16 _validatorCount);\n\n/**\n* @notice Should be a FeeDistributorFactory contract\n* @param _passedAddress passed address that does not support IFeeDistributorFactory interface\n*/\nerror FeeDistributor__NotFactory(address _passedAddress);\n\n/**\n* @notice Service address should be a secure P2P address, not zero.\n*/\nerror FeeDistributor__ZeroAddressService();\n\n/**\n* @notice Client address should be different from service address.\n* @param _passedAddress passed client address that equals to the service address\n*/\nerror FeeDistributor__ClientAddressEqualsService(address _passedAddress);\n\n/**\n* @notice Client address should be an actual client address, not zero.\n*/\nerror FeeDistributor__ZeroAddressClient();\n\n/**\n* @notice Client basis points should be >= 0 and <= 10000\n* @param _clientBasisPoints passed incorrect client basis points\n*/\nerror FeeDistributor__InvalidClientBasisPoints(uint96 _clientBasisPoints);\n\n/**\n* @notice The sum of (Client basis points + Referral basis points) should be >= 0 and <= 10000\n* @param _clientBasisPoints passed client basis points\n* @param _referralBasisPoints passed referral basis points\n*/\nerror FeeDistributor__ClientPlusReferralBasisPointsExceed10000(uint96 _clientBasisPoints, uint96 _referralBasisPoints);\n\n/**\n* @notice Referrer address should be different from service address.\n* @param _passedAddress passed referrer address that equals to the service address\n*/\nerror FeeDistributor__ReferrerAddressEqualsService(address _passedAddress);\n\n/**\n* @notice Referrer address should be different from client address.\n* @param _passedAddress passed referrer address that equals to the client address\n*/\nerror FeeDistributor__ReferrerAddressEqualsClient(address _passedAddress);\n\n/**\n* @notice Only factory can call `initialize`.\n* @param _msgSender sender address.\n* @param _actualFactory the actual factory address that can call `initialize`.\n*/\nerror FeeDistributor__NotFactoryCalled(address _msgSender, IFeeDistributorFactory _actualFactory);\n\n/**\n* @notice `initialize` should only be called once.\n* @param _existingClient address of the client with which the contact has already been initialized.\n*/\nerror FeeDistributor__ClientAlreadySet(address _existingClient);\n\n/**\n* @notice Cannot call `withdraw` if the client address is not set yet.\n* @dev The client address is supposed to be set by the factory.\n*/\nerror FeeDistributor__ClientNotSet();\n\n/**\n* @notice basisPoints of the referrer must be zero if referrer address is empty.\n* @param _referrerBasisPoints basisPoints of the referrer.\n*/\nerror FeeDistributor__ReferrerBasisPointsMustBeZeroIfAddressIsZero(uint96 _referrerBasisPoints);\n\n/**\n* @notice service should be able to receive ether.\n* @param _service address of the service.\n*/\nerror FeeDistributor__ServiceCannotReceiveEther(address _service);\n\n/**\n* @notice client should be able to receive ether.\n* @param _client address of the client.\n*/\nerror FeeDistributor__ClientCannotReceiveEther(address _client);\n\n/**\n* @notice referrer should be able to receive ether.\n* @param _referrer address of the referrer.\n*/\nerror FeeDistributor__ReferrerCannotReceiveEther(address _referrer);\n\n/**\n* @notice zero ether balance\n*/\nerror FeeDistributor__NothingToWithdraw();\n\n/**\n* @notice cannot withdraw until rewards (CL+EL) are enough to be split\n*/\nerror FeeDistributor__WaitForEnoughRewardsToWithdraw();\n\n/**\n* @notice Throws if called by any account other than the client.\n* @param _caller address of the caller\n* @param _client address of the client\n*/\nerror FeeDistributor__CallerNotClient(address _caller, address _client);\n\n/**\n* @title Contract receiving MEV and priority fees\n* and distributing them to the service and the client.\n*/\ncontract FeeDistributor is OwnableTokenRecoverer, ReentrancyGuard, ERC165, IFeeDistributor {\n    // State variables\n\n    /**\n    * @notice address of FeeDistributorFactory\n    */\n    IFeeDistributorFactory private immutable i_factory;\n\n    /**\n    * @notice address of Oracle\n    */\n    IOracle private immutable i_oracle;\n\n    /**\n    * @notice address of the service (P2P) fee recipient\n    */\n    address payable private immutable i_service;\n\n    /**\n    * @notice client config (address of the client, client basis points)\n    */\n    FeeRecipient private s_clientConfig;\n\n    /**\n    * @notice referrer config (address of the referrer, referrer basis points)\n    */\n    FeeRecipient private s_referrerConfig;\n\n    /**\n    * @notice amount of CL rewards (in Wei) that should belong to the client only\n    * and should not be considered for splitting between the service and the referrer\n    */\n    ValidatorData private s_validatorData;\n\n    /**\n    * @dev Set values that are constant, common for all the clients, known at the initial deploy time.\n    * @param _factory address of FeeDistributorFactory\n    * @param _service address of the service (P2P) fee recipient\n    */\n    constructor(\n        address _oracle,\n        address _factory,\n        address payable _service\n    ) {\n        if (!ERC165Checker.supportsInterface(_oracle, type(IOracle).interfaceId)) {\n            revert FeeDistributor__NotOracle(_factory);\n        }\n        if (!ERC165Checker.supportsInterface(_factory, type(IFeeDistributorFactory).interfaceId)) {\n            revert FeeDistributor__NotFactory(_factory);\n        }\n        if (_service == address(0)) {\n            revert FeeDistributor__ZeroAddressService();\n        }\n\n        i_oracle = IOracle(_oracle);\n        i_factory = IFeeDistributorFactory(_factory);\n        i_service = _service;\n\n        bool serviceCanReceiveEther = _sendValue(_service, 0);\n        if (!serviceCanReceiveEther) {\n            revert FeeDistributor__ServiceCannotReceiveEther(_service);\n        }\n    }\n\n    /**\n    * @dev Throws if called by any account other than the client.\n    */\n    modifier onlyClient() {\n        address caller = _msgSender();\n        address clientAddress = s_clientConfig.recipient;\n\n        if (clientAddress != caller) {\n            revert FeeDistributor__CallerNotClient(caller, clientAddress);\n        }\n        _;\n    }\n\n    // Functions\n\n    /**\n    * @notice Accept ether from transactions\n    */\n    receive() external payable {\n        // only accept ether in an instance, not in a template\n        if (s_clientConfig.recipient == address(0)) {\n            revert FeeDistributor__ClientNotSet();\n        }\n    }\n\n    /**\n    * @notice Set client address.\n    * @dev Could not be in the constructor since it is different for different clients.\n    * @dev _referrerConfig can be zero if there is no referrer.\n    * @param _clientConfig address and basis points (percent * 100) of the client\n    * @param _referrerConfig address and basis points (percent * 100) of the referrer.\n    * @param _validatorData clientOnlyClRewards, firstValidatorId, and validatorCount\n    */\n    function initialize(\n        FeeRecipient calldata _clientConfig,\n        FeeRecipient calldata _referrerConfig,\n        ValidatorData calldata _validatorData\n    ) external {\n        if (msg.sender != address(i_factory)) {\n            revert FeeDistributor__NotFactoryCalled(msg.sender, i_factory);\n        }\n        if (_clientConfig.recipient == address(0)) {\n            revert FeeDistributor__ZeroAddressClient();\n        }\n        if (_clientConfig.recipient == i_service) {\n            revert FeeDistributor__ClientAddressEqualsService(_clientConfig.recipient);\n        }\n        if (s_clientConfig.recipient != address(0)) {\n            revert FeeDistributor__ClientAlreadySet(s_clientConfig.recipient);\n        }\n        if (_clientConfig.basisPoints > 10000) {\n            revert FeeDistributor__InvalidClientBasisPoints(_clientConfig.basisPoints);\n        }\n        if (_validatorData.firstValidatorId == 0) {\n            revert FeeDistributor__InvalidFirstValidatorId(_validatorData.firstValidatorId);\n        }\n        if (_validatorData.validatorCount == 0) {\n            revert FeeDistributor__InvalidValidatorCount(_validatorData.validatorCount);\n        }\n\n        if (_referrerConfig.recipient != address(0)) {// if there is a referrer\n            if (_referrerConfig.recipient == i_service) {\n                revert FeeDistributor__ReferrerAddressEqualsService(_referrerConfig.recipient);\n            }\n            if (_referrerConfig.recipient == _clientConfig.recipient) {\n                revert FeeDistributor__ReferrerAddressEqualsClient(_referrerConfig.recipient);\n            }\n            if (_clientConfig.basisPoints + _referrerConfig.basisPoints > 10000) {\n                revert FeeDistributor__ClientPlusReferralBasisPointsExceed10000(_clientConfig.basisPoints, _referrerConfig.basisPoints);\n            }\n\n            // set referrer config\n            s_referrerConfig = _referrerConfig;\n\n        } else {// if there is no referrer\n            if (_referrerConfig.basisPoints != 0) {\n                revert FeeDistributor__ReferrerBasisPointsMustBeZeroIfAddressIsZero(_referrerConfig.basisPoints);\n            }\n        }\n\n        // set client config\n        s_clientConfig = _clientConfig;\n\n        // set validator data\n        s_validatorData = _validatorData;\n\n        emit Initialized(\n            _clientConfig.recipient,\n            _clientConfig.basisPoints,\n            _referrerConfig.recipient,\n            _referrerConfig.basisPoints\n        );\n\n        bool clientCanReceiveEther = _sendValue(_clientConfig.recipient, 0);\n        if (!clientCanReceiveEther) {\n            revert FeeDistributor__ClientCannotReceiveEther(_clientConfig.recipient);\n        }\n        if (_referrerConfig.recipient != address(0)) {// if there is a referrer\n            bool referrerCanReceiveEther = _sendValue(_referrerConfig.recipient, 0);\n            if (!referrerCanReceiveEther) {\n                revert FeeDistributor__ReferrerCannotReceiveEther(_referrerConfig.recipient);\n            }\n        }\n    }\n\n    /**\n    * @notice Withdraw the whole balance of the contract according to the pre-defined basis points.\n    * @dev In case someone (either service, or client, or referrer) fails to accept ether,\n    * the owner will be able to recover some of their share.\n    * This scenario is very unlikely. It can only happen if that someone is a contract\n    * whose receive function changed its behavior since FeeDistributor's initialization.\n    * It can never happen unless the receiving party themselves wants it to happen.\n    * We strongly recommend against intentional reverts in the receive function\n    * because the remaining parties might call `withdraw` again multiple times without waiting\n    * for the owner to recover ether for the reverting party.\n    * In fact, as a punishment for the reverting party, before the recovering,\n    * 1 more regular `withdraw` will happen, rewarding the non-reverting parties again.\n    * `recoverEther` function is just an emergency backup plan and does not replace `withdraw`.\n    *\n    * @param _proof Merkle proof (the leaf's sibling, and each non-leaf hash that could not otherwise be calculated without additional leaf nodes)\n    * @param _amountInGwei total CL rewards earned by all validators in GWei (see _validatorCount)\n    */\n    function withdraw(\n        bytes32[] calldata _proof,\n        uint256 _amountInGwei\n    ) external nonReentrant {\n        if (s_clientConfig.recipient == address(0)) {\n            revert FeeDistributor__ClientNotSet();\n        }\n\n        // get the contract's balance\n        uint256 balance = address(this).balance;\n\n        if (balance == 0) {\n            // revert if there is no ether to withdraw\n            revert FeeDistributor__NothingToWithdraw();\n        }\n\n        // read from storage once\n        ValidatorData memory vd = s_validatorData;\n\n        // verify the data from the caller against the oracle\n        i_oracle.verify(_proof, vd.firstValidatorId, vd.validatorCount, _amountInGwei);\n\n        // Gwei to Wei\n        uint256 amount = _amountInGwei * (10 ** 9);\n\n        if (balance + amount < vd.clientOnlyClRewards) {\n            // Can happen if the client has called emergencyEtherRecoveryWithoutOracleData before\n            // but the actual rewards amount now appeared to be lower than the already split.\n            // Should happen rarely.\n\n            revert FeeDistributor__WaitForEnoughRewardsToWithdraw();\n        }\n\n        // total to split = EL + CL - already split part of CL (should be OK unless halfBalance < serviceAmount)\n        uint256 totalAmountToSplit = balance + amount - vd.clientOnlyClRewards;\n\n        // set client basis points to value from storage config\n        uint256 clientBp = s_clientConfig.basisPoints;\n\n        // how much should service get\n        uint256 serviceAmount = totalAmountToSplit - ((totalAmountToSplit * clientBp) / 10000);\n\n        uint256 halfBalance = balance / 2;\n\n        // how much should client get\n        uint256 clientAmount;\n\n        // if a half of the available balance is not enough to cover service (and referrer) shares\n        // can happen when CL rewards (only accessible by client) are way much than EL rewards\n        if (serviceAmount > halfBalance) {\n            // client gets 50% of EL rewards\n            clientAmount = halfBalance;\n\n            // service (and referrer) get 50% of EL rewards combined (+1 wei in case balance is odd)\n            serviceAmount = balance - halfBalance;\n\n            // update the total amount being split to a smaller value to fit the actual balance of this contract\n            totalAmountToSplit = (halfBalance * 10000) / (10000 - clientBp);\n        } else {\n            // send the remaining balance to client\n            clientAmount = balance - serviceAmount;\n        }\n\n        // client gets the rest from CL as not split anymore amount\n        s_validatorData.clientOnlyClRewards = uint176(vd.clientOnlyClRewards + (totalAmountToSplit - balance));\n\n        // how much should referrer get\n        uint256 referrerAmount;\n\n        if (s_referrerConfig.recipient != address(0)) {\n            // if there is a referrer\n\n            referrerAmount = (totalAmountToSplit * s_referrerConfig.basisPoints) / 10000;\n\n            serviceAmount -= referrerAmount;\n\n            // Send ETH to referrer. Ignore the possible yet unlikely revert in the receive function.\n            _sendValue(s_referrerConfig.recipient, referrerAmount);\n        }\n\n        // Send ETH to service. Ignore the possible yet unlikely revert in the receive function.\n        _sendValue(i_service, serviceAmount);\n\n        // Send ETH to client. Ignore the possible yet unlikely revert in the receive function.\n        _sendValue(s_clientConfig.recipient, clientAmount);\n\n        emit Withdrawn(serviceAmount, clientAmount, referrerAmount);\n    }\n\n    /**\n    * @notice Recover ether in a rare case when either service, or client, or referrer\n    * refuse to accept ether.\n    * @param _to receiver address\n    * @param _proof Merkle proof (the leaf's sibling, and each non-leaf hash that could not otherwise be calculated without additional leaf nodes)\n    * @param _amountInGwei total CL rewards earned by all validators in GWei (see _validatorCount)\n    */\n    function recoverEther(\n        address payable _to,\n        bytes32[] calldata _proof,\n        uint256 _amountInGwei\n    ) external onlyOwner {\n        this.withdraw(_proof, _amountInGwei);\n\n        // get the contract's balance\n        uint256 balance = address(this).balance;\n\n        if (balance > 0) { // only happens if at least 1 party reverted in their receive\n            bool success = _sendValue(_to, balance);\n\n            if (success) {\n                emit EtherRecovered(_to, balance);\n            } else {\n                emit EtherRecoveryFailed(_to, balance);\n            }\n        }\n    }\n\n    /**\n    * @notice SHOULD NEVER BE CALLED NORMALLY!!!! Recover ether if oracle data (Merkle proof) is not available for some reason.\n    */\n    function emergencyEtherRecoveryWithoutOracleData() external onlyClient nonReentrant {\n        // get the contract's balance\n        uint256 balance = address(this).balance;\n\n        if (balance == 0) {\n            // revert if there is no ether to withdraw\n            revert FeeDistributor__NothingToWithdraw();\n        }\n\n        uint256 halfBalance = balance / 2;\n\n        // client gets 50% of EL rewards\n        uint256 clientAmount = halfBalance;\n\n        // service (and referrer) get 50% of EL rewards combined (+1 wei in case balance is odd)\n        uint256 serviceAmount = balance - halfBalance;\n\n        // the total amount being split fits the actual balance of this contract\n        uint256 totalAmountToSplit = (halfBalance * 10000) / (10000 - s_clientConfig.basisPoints);\n\n        // client gets the rest from CL as not split anymore amount\n        s_validatorData.clientOnlyClRewards = uint176(s_validatorData.clientOnlyClRewards + (totalAmountToSplit - balance));\n\n        // how much should referrer get\n        uint256 referrerAmount;\n\n        if (s_referrerConfig.recipient != address(0)) {\n            // if there is a referrer\n\n            referrerAmount = (totalAmountToSplit * s_referrerConfig.basisPoints) / 10000;\n\n            serviceAmount -= referrerAmount;\n\n            // Send ETH to referrer. Ignore the possible yet unlikely revert in the receive function.\n            _sendValue(s_referrerConfig.recipient, referrerAmount);\n        }\n\n        // Send ETH to service. Ignore the possible yet unlikely revert in the receive function.\n        _sendValue(i_service, serviceAmount);\n\n        // Send ETH to client. Ignore the possible yet unlikely revert in the receive function.\n        _sendValue(s_clientConfig.recipient, clientAmount);\n\n        emit Withdrawn(serviceAmount, clientAmount, referrerAmount);\n    }\n\n    /**\n     * @dev Returns the factory address\n     */\n    function factory() external view returns (address) {\n        return address(i_factory);\n    }\n\n    /**\n     * @dev Returns the service address\n     */\n    function service() external view returns (address) {\n        return i_service;\n    }\n\n    /**\n     * @dev Returns the client address\n     */\n    function client() external view returns (address) {\n        return s_clientConfig.recipient;\n    }\n\n    /**\n     * @dev Returns the client basis points\n     */\n    function clientBasisPoints() external view returns (uint256) {\n        return s_clientConfig.basisPoints;\n    }\n\n    /**\n    * @dev Returns the referrer address\n     */\n    function referrer() external view returns (address) {\n        return s_referrerConfig.recipient;\n    }\n\n    /**\n     * @dev Returns the referrer basis points\n     */\n    function referrerBasisPoints() external view returns (uint256) {\n        return s_referrerConfig.basisPoints;\n    }\n\n    /**\n    * @dev Returns First Validator Id\n    */\n    function firstValidatorId() external view returns (uint256) {\n        return s_validatorData.firstValidatorId;\n    }\n\n    /**\n    * @dev Returns a portion of CL rewards that should not be counted during withdraw (belongs to client only)\n    */\n    function clientOnlyClRewards() external view returns (uint256) {\n        return s_validatorData.clientOnlyClRewards;\n    }\n\n    /**\n    * @dev Returns validator count\n    */\n    function validatorCount() external view returns (uint256) {\n        return s_validatorData.validatorCount;\n    }\n\n    /**\n    * @dev See {IERC165-supportsInterface}.\n    */\n    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {\n        return interfaceId == type(IFeeDistributor).interfaceId || super.supportsInterface(interfaceId);\n    }\n\n    /**\n     * @dev Returns the address of the current owner.\n     */\n    function owner() public view override returns (address) {\n        return i_factory.owner();\n    }\n\n    function _sendValue(address payable _recipient, uint256 _amount) internal returns (bool) {\n        (bool success, ) = _recipient.call{\n            value: _amount,\n            gas: gasleft() / 4 // to prevent DOS, should be enough in normal cases\n        }(\"\");\n\n        return success;\n    }\n}\n"
      },
      "contracts/@openzeppelin/contracts/security/ReentrancyGuard.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol)\n\npragma solidity 0.8.10;\n\n/**\n * @dev Contract module that helps prevent reentrant calls to a function.\n *\n * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier\n * available, which can be applied to functions to make sure there are no nested\n * (reentrant) calls to them.\n *\n * Note that because there is a single `nonReentrant` guard, functions marked as\n * `nonReentrant` may not call one another. This can be worked around by making\n * those functions `private`, and then adding `external` `nonReentrant` entry\n * points to them.\n *\n * TIP: If you would like to learn more about reentrancy and alternative ways\n * to protect against it, check out our blog post\n * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].\n */\nabstract contract ReentrancyGuard {\n    // Booleans are more expensive than uint256 or any type that takes up a full\n    // word because each write operation emits an extra SLOAD to first read the\n    // slot's contents, replace the bits taken up by the boolean, and then write\n    // back. This is the compiler's defense against contract upgrades and\n    // pointer aliasing, and it cannot be disabled.\n\n    // The values being non-zero value makes deployment a bit more expensive,\n    // but in exchange the refund on every call to nonReentrant will be lower in\n    // amount. Since refunds are capped to a percentage of the total\n    // transaction's gas, it is best to keep them low in cases like this one, to\n    // increase the likelihood of the full refund coming into effect.\n    uint256 private constant _NOT_ENTERED = 1;\n    uint256 private constant _ENTERED = 2;\n\n    uint256 private _status;\n\n    constructor() {\n        _status = _NOT_ENTERED;\n    }\n\n    /**\n     * @dev Prevents a contract from calling itself, directly or indirectly.\n     * Calling a `nonReentrant` function from another `nonReentrant`\n     * function is not supported. It is possible to prevent this from happening\n     * by making the `nonReentrant` function external, and making it call a\n     * `private` function that does the actual work.\n     */\n    modifier nonReentrant() {\n        // On the first call to nonReentrant, _notEntered will be true\n        require(_status != _ENTERED, \"ReentrancyGuard: reentrant call\");\n\n        // Any calls to nonReentrant after this point will fail\n        _status = _ENTERED;\n\n        _;\n\n        // By storing the original value once again, a refund is triggered (see\n        // https://eips.ethereum.org/EIPS/eip-2200)\n        _status = _NOT_ENTERED;\n    }\n}\n"
      },
      "contracts/@openzeppelin/contracts/utils/introspection/ERC165.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)\n\npragma solidity 0.8.10;\n\nimport \"./IERC165.sol\";\n\n/**\n * @dev Implementation of the {IERC165} interface.\n *\n * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check\n * for the additional interface id that will be supported. For example:\n *\n * ```solidity\n * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);\n * }\n * ```\n *\n * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.\n */\nabstract contract ERC165 is IERC165 {\n    /**\n     * @dev See {IERC165-supportsInterface}.\n     */\n    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n        return interfaceId == type(IERC165).interfaceId;\n    }\n}\n"
      },
      "contracts/@openzeppelin/contracts/utils/introspection/ERC165Checker.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.2) (utils/introspection/ERC165Checker.sol)\n\npragma solidity 0.8.10;\n\nimport \"./IERC165.sol\";\n\n/**\n * @dev Library used to query support of an interface declared via {IERC165}.\n *\n * Note that these functions return the actual result of the query: they do not\n * `revert` if an interface is not supported. It is up to the caller to decide\n * what to do in these cases.\n */\nlibrary ERC165Checker {\n    // As per the EIP-165 spec, no interface should ever match 0xffffffff\n    bytes4 private constant _INTERFACE_ID_INVALID = 0xffffffff;\n\n    /**\n     * @dev Returns true if `account` supports the {IERC165} interface,\n     */\n    function supportsERC165(address account) internal view returns (bool) {\n        // Any contract that implements ERC165 must explicitly indicate support of\n        // InterfaceId_ERC165 and explicitly indicate non-support of InterfaceId_Invalid\n        return\n            _supportsERC165Interface(account, type(IERC165).interfaceId) &&\n            !_supportsERC165Interface(account, _INTERFACE_ID_INVALID);\n    }\n\n    /**\n     * @dev Returns true if `account` supports the interface defined by\n     * `interfaceId`. Support for {IERC165} itself is queried automatically.\n     *\n     * See {IERC165-supportsInterface}.\n     */\n    function supportsInterface(address account, bytes4 interfaceId) internal view returns (bool) {\n        // query support of both ERC165 as per the spec and support of _interfaceId\n        return supportsERC165(account) && _supportsERC165Interface(account, interfaceId);\n    }\n\n    /**\n     * @dev Returns a boolean array where each value corresponds to the\n     * interfaces passed in and whether they're supported or not. This allows\n     * you to batch check interfaces for a contract where your expectation\n     * is that some interfaces may not be supported.\n     *\n     * See {IERC165-supportsInterface}.\n     *\n     * _Available since v3.4._\n     */\n    function getSupportedInterfaces(address account, bytes4[] memory interfaceIds)\n        internal\n        view\n        returns (bool[] memory)\n    {\n        // an array of booleans corresponding to interfaceIds and whether they're supported or not\n        bool[] memory interfaceIdsSupported = new bool[](interfaceIds.length);\n\n        // query support of ERC165 itself\n        if (supportsERC165(account)) {\n            // query support of each interface in interfaceIds\n            for (uint256 i = 0; i < interfaceIds.length; i++) {\n                interfaceIdsSupported[i] = _supportsERC165Interface(account, interfaceIds[i]);\n            }\n        }\n\n        return interfaceIdsSupported;\n    }\n\n    /**\n     * @dev Returns true if `account` supports all the interfaces defined in\n     * `interfaceIds`. Support for {IERC165} itself is queried automatically.\n     *\n     * Batch-querying can lead to gas savings by skipping repeated checks for\n     * {IERC165} support.\n     *\n     * See {IERC165-supportsInterface}.\n     */\n    function supportsAllInterfaces(address account, bytes4[] memory interfaceIds) internal view returns (bool) {\n        // query support of ERC165 itself\n        if (!supportsERC165(account)) {\n            return false;\n        }\n\n        // query support of each interface in _interfaceIds\n        for (uint256 i = 0; i < interfaceIds.length; i++) {\n            if (!_supportsERC165Interface(account, interfaceIds[i])) {\n                return false;\n            }\n        }\n\n        // all interfaces supported\n        return true;\n    }\n\n    /**\n     * @notice Query if a contract implements an interface, does not check ERC165 support\n     * @param account The address of the contract to query for support of an interface\n     * @param interfaceId The interface identifier, as specified in ERC-165\n     * @return true if the contract at account indicates support of the interface with\n     * identifier interfaceId, false otherwise\n     * @dev Assumes that account contains a contract that supports ERC165, otherwise\n     * the behavior of this method is undefined. This precondition can be checked\n     * with {supportsERC165}.\n     * Interface identification is specified in ERC-165.\n     */\n    function _supportsERC165Interface(address account, bytes4 interfaceId) private view returns (bool) {\n        // prepare call\n        bytes memory encodedParams = abi.encodeWithSelector(IERC165.supportsInterface.selector, interfaceId);\n\n        // perform static call\n        bool success;\n        uint256 returnSize;\n        uint256 returnValue;\n        assembly {\n            success := staticcall(30000, account, add(encodedParams, 0x20), mload(encodedParams), 0x00, 0x20)\n            returnSize := returndatasize()\n            returnValue := mload(0x00)\n        }\n\n        return success && returnSize >= 0x20 && returnValue > 0;\n    }\n}\n"
      },
      "contracts/feeDistributorFactory/IFeeDistributorFactory.sol": {
        "content": "// SPDX-FileCopyrightText: 2023 P2P Validator <info@p2p.org>\n// SPDX-License-Identifier: MIT\n\npragma solidity 0.8.10;\n\nimport \"../@openzeppelin/contracts/utils/introspection/IERC165.sol\";\nimport \"../access/IOwnable.sol\";\nimport \"../feeDistributor/IFeeDistributor.sol\";\n\n/**\n * @dev External interface of FeeDistributorFactory declared to support ERC165 detection.\n */\ninterface IFeeDistributorFactory is IOwnable, IERC165 {\n    // Events\n\n    /**\n    * @notice Emits when a new FeeDistributor instance has been created for a client\n    * @param _newFeeDistributorAddress address of the newly created FeeDistributor contract instance\n    * @param _clientAddress address of the client for whom the new instance was created\n    */\n    event FeeDistributorCreated(address indexed _newFeeDistributorAddress, address indexed _clientAddress);\n\n    /**\n    * @notice Emits when a new FeeDistributor contract address has been set as a reference instance.\n    * @param _referenceFeeDistributor the address of the new reference implementation contract\n    */\n    event ReferenceInstanceSet(address indexed _referenceFeeDistributor);\n\n    /**\n    * @notice Emits when a new P2pEth2Depositor contract address has been set.\n    * @param _p2pEth2Depositor the address of the new P2pEth2Depositor contract\n    */\n    event P2pEth2DepositorSet(address indexed _p2pEth2Depositor);\n\n    // Functions\n\n    /**\n    * @notice Set a new reference implementation of FeeDistributor contract\n    * @param _referenceFeeDistributor the address of the new reference implementation contract\n    */\n    function setReferenceInstance(address _referenceFeeDistributor) external;\n\n    /**\n    * @notice Creates a FeeDistributor instance for a client\n    * @dev Emits `FeeDistributorCreated` event with the address of the newly created instance\n    * @dev _referrerConfig can be zero if there is no referrer.\n    * @param _clientConfig address and basis points (percent * 100) of the client\n    * @param _referrerConfig address and basis points (percent * 100) of the referrer.\n    * @param _validatorData clientOnlyClRewards, firstValidatorId, and validatorCount\n    * @return newFeeDistributorAddress user FeeDistributor instance that has just been deployed\n    */\n    function createFeeDistributor(\n        IFeeDistributor.FeeRecipient calldata _clientConfig,\n        IFeeDistributor.FeeRecipient calldata _referrerConfig,\n        IFeeDistributor.ValidatorData calldata _validatorData\n    ) external returns (address newFeeDistributorAddress);\n\n    /**\n     * @dev Returns the reference FeeDistributor contract address\n     */\n    function getReferenceFeeDistributor() external view returns (address);\n}\n"
      },
      "contracts/assetRecovering/OwnableTokenRecoverer.sol": {
        "content": "// SPDX-FileCopyrightText: 2023 P2P Validator <info@p2p.org>, Lido <info@lido.fi>\n// SPDX-License-Identifier: MIT\n\n// https://github.com/lidofinance/lido-otc-seller/blob/master/contracts/lib/AssetRecoverer.sol\npragma solidity 0.8.10;\n\nimport \"./TokenRecoverer.sol\";\nimport \"../access/OwnableBase.sol\";\n\n/// @title Token Recoverer with public functions callable by assetAccessingAddress\n/// @notice Recover ERC20, ERC721 and ERC1155 from a derived contract\nabstract contract OwnableTokenRecoverer is TokenRecoverer, OwnableBase {\n    // Functions\n\n    /**\n     * @notice transfer an ERC20 token from this contract\n     * @dev `SafeERC20.safeTransfer` doesn't always return a bool\n     * as it performs an internal `require` check\n     * @param _token address of the ERC20 token\n     * @param _recipient address to transfer the tokens to\n     * @param _amount amount of tokens to transfer\n     */\n    function transferERC20(\n        address _token,\n        address _recipient,\n        uint256 _amount\n    ) external onlyOwner {\n        _transferERC20(_token, _recipient, _amount);\n    }\n\n    /**\n     * @notice transfer an ERC721 token from this contract\n     * @dev `IERC721.safeTransferFrom` doesn't always return a bool\n     * as it performs an internal `require` check\n     * @param _token address of the ERC721 token\n     * @param _recipient address to transfer the token to\n     * @param _tokenId id of the individual token\n     * @param _data data to transfer along\n     */\n    function transferERC721(\n        address _token,\n        address _recipient,\n        uint256 _tokenId,\n        bytes calldata _data\n    ) external onlyOwner {\n        _transferERC721(_token, _recipient, _tokenId, _data);\n    }\n\n    /**\n     * @notice transfer an ERC1155 token from this contract\n     * @dev see `AssetRecoverer`\n     * @param _token address of the ERC1155 token that is being recovered\n     * @param _recipient address to transfer the token to\n     * @param _tokenId id of the individual token to transfer\n     * @param _amount amount of tokens to transfer\n     * @param _data data to transfer along\n     */\n    function transferERC1155(\n        address _token,\n        address _recipient,\n        uint256 _tokenId,\n        uint256 _amount,\n        bytes calldata _data\n    ) external onlyOwner {\n        _transferERC1155(_token, _recipient, _tokenId, _amount, _data);\n    }\n}\n"
      },
      "contracts/feeDistributor/IFeeDistributor.sol": {
        "content": "// SPDX-FileCopyrightText: 2023 P2P Validator <info@p2p.org>\n// SPDX-License-Identifier: MIT\n\npragma solidity 0.8.10;\n\nimport \"../@openzeppelin/contracts/utils/introspection/IERC165.sol\";\n\n/**\n * @dev External interface of FeeDistributor declared to support ERC165 detection.\n */\ninterface IFeeDistributor is IERC165 {\n\n    /**\n     * @dev 256bits-wide structure to store recipient address along with its basisPoints\n     */\n    struct FeeRecipient {\n        /**\n        * @notice basis points (percent * 100) of EL rewards that should go to the recipient\n        */\n        uint96 basisPoints;\n\n        /**\n        * @notice address of the recipient\n        */\n        address payable recipient;\n    }\n\n    /**\n    * @dev 256bits-wide structure to store clientOnlyClRewards, firstValidatorId, and validatorCount\n     */\n    struct ValidatorData {\n        /**\n        * @notice amount of CL rewards (in Wei) that should belong to the client only\n        * and should not be considered for splitting between the service and the referrer\n        */\n        uint176 clientOnlyClRewards;\n\n        /**\n        * @notice Validator Id (number of all deposits previously made to ETH2 DepositContract plus 1)\n        */\n        uint64 firstValidatorId;\n\n        /**\n        * @notice Number of validators corresponding to a given FeeDistributor instance, equal to the number of ETH2 deposits made with 1 P2pEth2Depositor's deposit\n        */\n        uint16 validatorCount;\n    }\n\n    // Events\n\n    /**\n    * @notice Emits on successful withdrawal\n    * @param _serviceAmount how much wei service received\n    * @param _clientAmount how much wei client received\n    * @param _referrerAmount how much wei referrer received\n    */\n    event Withdrawn(uint256 _serviceAmount, uint256 _clientAmount, uint256 _referrerAmount);\n\n    /**\n    * @notice Emits once the client and the optional referrer have been set.\n    * @param _client address of the client.\n    * @param _clientBasisPoints basis points (percent * 100) of EL rewards that should go to the client\n    * @param _referrer address of the referrer.\n    * @param _referrerBasisPoints basis points (percent * 100) of EL rewards that should go to the referrer\n    */\n    event Initialized(\n        address indexed _client,\n        uint96 _clientBasisPoints,\n        address indexed _referrer,\n        uint96 _referrerBasisPoints\n    );\n\n    /**\n    * @notice Emits if case there was some ether left after `withdraw` and it has been sent successfully.\n    * @param _to destination address for ether.\n    * @param _amount how much wei the destination address received.\n    */\n    event EtherRecovered(address indexed _to, uint256 _amount);\n\n    /**\n    * @notice Emits if case there was some ether left after `withdraw` and it has failed to recover.\n    * @param _to destination address for ether.\n    * @param _amount how much wei the destination address should have received, but didn't.\n    */\n    event EtherRecoveryFailed(address indexed _to, uint256 _amount);\n\n    // Functions\n\n    /**\n    * @notice Set client address.\n    * @dev Could not be in the constructor since it is different for different clients.\n    * @dev _referrerConfig can be zero if there is no referrer.\n    * @param _clientConfig address and basis points (percent * 100) of the client\n    * @param _referrerConfig address and basis points (percent * 100) of the referrer.\n    * @param _validatorData clientOnlyClRewards, firstValidatorId, and validatorCount\n    */\n    function initialize(\n        FeeRecipient calldata _clientConfig,\n        FeeRecipient calldata _referrerConfig,\n        ValidatorData calldata _validatorData\n    ) external;\n\n    /**\n    * @notice Withdraw the whole balance of the contract according to the pre-defined basis points.\n    * @dev In case someone (either service, or client, or referrer) fails to accept ether,\n    * the owner will be able to recover some of their share.\n    * This scenario is very unlikely. It can only happen if that someone is a contract\n    * whose receive function changed its behavior since FeeDistributor's initialization.\n    * It can never happen unless the receiving party themselves wants it to happen.\n    * We strongly recommend against intentional reverts in the receive function\n    * because the remaining parties might call `withdraw` again multiple times without waiting\n    * for the owner to recover ether for the reverting party.\n    * In fact, as a punishment for the reverting party, before the recovering,\n    * 1 more regular `withdraw` will happen, rewarding the non-reverting parties again.\n    * `recoverEther` function is just an emergency backup plan and does not replace `withdraw`.\n    *\n    * @param _proof Merkle proof (the leaf's sibling, and each non-leaf hash that could not otherwise be calculated without additional leaf nodes)\n    * @param _amount total CL rewards earned by all validators (see _validatorCount)\n    */\n    function withdraw(\n        bytes32[] calldata _proof,\n        uint256 _amount\n    ) external;\n\n    /**\n     * @dev Returns the factory address\n     */\n    function factory() external view returns (address);\n\n    /**\n     * @dev Returns the service address\n     */\n    function service() external view returns (address);\n\n    /**\n     * @dev Returns the client address\n     */\n    function client() external view returns (address);\n\n    /**\n     * @dev Returns the client basis points\n     */\n    function clientBasisPoints() external view returns (uint256);\n\n    /**\n    * @dev Returns the referrer address\n     */\n    function referrer() external view returns (address);\n\n    /**\n     * @dev Returns the referrer basis points\n     */\n    function referrerBasisPoints() external view returns (uint256);\n\n    /**\n    * @dev Returns First Validator Id\n    */\n    function firstValidatorId() external view returns (uint256);\n\n    /**\n    * @dev Returns a portion of CL rewards that should not be counted during withdraw (belongs to client only)\n    */\n    function clientOnlyClRewards() external view returns (uint256);\n\n    /**\n    * @dev Returns validator count\n    */\n    function validatorCount() external view returns (uint256);\n}\n"
      },
      "contracts/oracle/IOracle.sol": {
        "content": "// SPDX-FileCopyrightText: 2023 P2P Validator <info@p2p.org>\n// SPDX-License-Identifier: MIT\n\npragma solidity 0.8.10;\n\nimport \"../@openzeppelin/contracts/utils/introspection/IERC165.sol\";\nimport \"../access/IOwnable.sol\";\n\n/**\n * @dev External interface of Oracle declared to support ERC165 detection.\n */\ninterface IOracle is IOwnable, IERC165 {\n    // Events\n\n    /**\n    * @notice Emits when a new oracle report (Merkle root) recorded\n    * @param _root Merkle root\n    */\n    event Reported(bytes32 indexed _root);\n\n    // Functions\n\n    /**\n    * @notice Set a new oracle report (Merkle root)\n    * @param _root Merkle root\n    */\n    function report(bytes32 _root) external;\n\n    /**\n    * @notice Verify Merkle proof (that the leaf belongs to the tree)\n    * @param _proof Merkle proof (the leaf's sibling, and each non-leaf hash that could not otherwise be calculated without additional leaf nodes)\n    * @param _firstValidatorId Validator Id (number of all deposits previously made to ETH2 DepositContract plus 1)\n    * @param _validatorCount (number of validators corresponding to a given FeeDistributor instance, equal to the number of ETH2 deposits made with 1 P2pEth2Depositor's deposit)\n    * @param _amountInGwei total CL rewards earned by all validators in GWei (see _validatorCount)\n    */\n    function verify(\n        bytes32[] calldata _proof,\n        uint64 _firstValidatorId,\n        uint16 _validatorCount,\n        uint256 _amountInGwei\n    ) external view;\n}\n"
      },
      "contracts/@openzeppelin/contracts/utils/introspection/IERC165.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)\n\npragma solidity 0.8.10;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others ({ERC165Checker}).\n *\n * For an implementation, see {ERC165}.\n */\ninterface IERC165 {\n    /**\n     * @dev Returns true if this contract implements the interface defined by\n     * `interfaceId`. See the corresponding\n     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\n     * to learn more about how these ids are created.\n     *\n     * This function call must use less than 30 000 gas.\n     */\n    function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n"
      },
      "contracts/access/IOwnable.sol": {
        "content": "// SPDX-FileCopyrightText: 2023 P2P Validator <info@p2p.org>\n// SPDX-License-Identifier: MIT\n\npragma solidity 0.8.10;\n\n/**\n * @dev External interface of Ownable.\n */\ninterface IOwnable {\n    /**\n     * @dev Returns the address of the current owner.\n     */\n    function owner() external view returns (address);\n}\n"
      },
      "contracts/assetRecovering/TokenRecoverer.sol": {
        "content": "// SPDX-FileCopyrightText: 2023 P2P Validator <info@p2p.org>, Lido <info@lido.fi>\n// SPDX-License-Identifier: MIT\n\n// https://github.com/lidofinance/lido-otc-seller/blob/master/contracts/lib/AssetRecoverer.sol\npragma solidity 0.8.10;\n\nimport {IERC20} from \"../@openzeppelin/contracts/token/ERC20/IERC20.sol\";\nimport {IERC721} from \"../@openzeppelin/contracts/token/ERC721/IERC721.sol\";\nimport {IERC1155} from \"../@openzeppelin/contracts/token/ERC1155/IERC1155.sol\";\nimport {SafeERC20} from \"../@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol\";\n\n/**\n* @notice prevents burn for transfer functions\n* @dev _recipient should not be a zero address\n*/\nerror TokenRecoverer__NoBurn();\n\n\n/// @title Token Recoverer\n/// @notice Recover ERC20, ERC721 and ERC1155 from a derived contract\nabstract contract TokenRecoverer {\n    using SafeERC20 for IERC20;\n\n    event ERC20Transferred(address indexed _token, address indexed _recipient, uint256 _amount);\n    event ERC721Transferred(address indexed _token, address indexed _recipient, uint256 _tokenId, bytes _data);\n    event ERC1155Transferred(address indexed _token, address indexed _recipient, uint256 _tokenId, uint256 _amount, bytes _data);\n\n    /**\n     * @notice prevents burn for transfer functions\n     * @dev checks for zero address and reverts if true\n     * @param _recipient address of the transfer recipient\n     */\n    modifier burnDisallowed(address _recipient) {\n        if (_recipient == address(0)) {\n            revert TokenRecoverer__NoBurn();\n        }\n        _;\n    }\n\n    /**\n     * @notice transfer an ERC20 token from this contract\n     * @dev `SafeERC20.safeTransfer` doesn't always return a bool\n     * as it performs an internal `require` check\n     * @param _token address of the ERC20 token\n     * @param _recipient address to transfer the tokens to\n     * @param _amount amount of tokens to transfer\n     */\n    function _transferERC20(\n        address _token,\n        address _recipient,\n        uint256 _amount\n    ) internal virtual burnDisallowed(_recipient) {\n        IERC20(_token).safeTransfer(_recipient, _amount);\n        emit ERC20Transferred(_token, _recipient, _amount);\n    }\n\n    /**\n     * @notice transfer an ERC721 token from this contract\n     * @dev `IERC721.safeTransferFrom` doesn't always return a bool\n     * as it performs an internal `require` check\n     * @param _token address of the ERC721 token\n     * @param _recipient address to transfer the token to\n     * @param _tokenId id of the individual token\n     * @param _data data to transfer along\n     */\n    function _transferERC721(\n        address _token,\n        address _recipient,\n        uint256 _tokenId,\n        bytes calldata _data\n    ) internal virtual burnDisallowed(_recipient) {\n        IERC721(_token).safeTransferFrom(address(this), _recipient, _tokenId, _data);\n        emit ERC721Transferred(_token, _recipient, _tokenId, _data);\n    }\n\n    /**\n     * @notice transfer an ERC1155 token from this contract\n     * @dev `IERC1155.safeTransferFrom` doesn't always return a bool\n     * as it performs an internal `require` check\n     * @param _token address of the ERC1155 token that is being recovered\n     * @param _recipient address to transfer the token to\n     * @param _tokenId id of the individual token to transfer\n     * @param _amount amount of tokens to transfer\n     * @param _data data to transfer along\n     */\n    function _transferERC1155(\n        address _token,\n        address _recipient,\n        uint256 _tokenId,\n        uint256 _amount,\n        bytes calldata _data\n    ) internal virtual burnDisallowed(_recipient) {\n        IERC1155(_token).safeTransferFrom(address(this), _recipient, _tokenId, _amount, _data);\n        emit ERC1155Transferred(_token, _recipient, _tokenId, _amount, _data);\n    }\n}\n"
      },
      "contracts/access/OwnableBase.sol": {
        "content": "// SPDX-FileCopyrightText: 2023 P2P Validator <info@p2p.org>\n// SPDX-License-Identifier: MIT\n\npragma solidity 0.8.10;\n\nimport \"../@openzeppelin/contracts/utils/Context.sol\";\nimport \"./IOwnable.sol\";\n\n/**\n* @notice Throws if called by any account other than the owner.\n* @param _caller address of the caller\n* @param _owner address of the owner\n*/\nerror OwnableBase__CallerNotOwner(address _caller, address _owner);\n\n/**\n * @dev minimalistic version of OpenZeppelin's Ownable.\n * The owner is abstract and is not persisted in storage.\n * Needs to be overridden in a child contract.\n */\nabstract contract OwnableBase is Context, IOwnable {\n\n    /**\n     * @dev Throws if called by any account other than the owner.\n     */\n    modifier onlyOwner() {\n        address caller = _msgSender();\n        address currentOwner = owner();\n\n        if (currentOwner != caller) {\n            revert OwnableBase__CallerNotOwner(caller, currentOwner);\n        }\n        _;\n    }\n\n    /**\n     * @dev Returns the address of the current owner.\n     * Needs to be overridden in a child contract.\n     */\n    function owner() public view virtual override returns (address);\n}\n"
      },
      "contracts/@openzeppelin/contracts/token/ERC20/IERC20.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)\n\npragma solidity 0.8.10;\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"
      },
      "contracts/@openzeppelin/contracts/token/ERC721/IERC721.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/IERC721.sol)\n\npragma solidity 0.8.10;\n\nimport \"../../utils/introspection/IERC165.sol\";\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ninterface IERC721 is IERC165 {\n    /**\n     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.\n     */\n    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n\n    /**\n     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.\n     */\n    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n\n    /**\n     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.\n     */\n    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n    /**\n     * @dev Returns the number of tokens in ``owner``'s account.\n     */\n    function balanceOf(address owner) external view returns (uint256 balance);\n\n    /**\n     * @dev Returns the owner of the `tokenId` token.\n     *\n     * Requirements:\n     *\n     * - `tokenId` must exist.\n     */\n    function ownerOf(uint256 tokenId) external view returns (address owner);\n\n    /**\n     * @dev Safely transfers `tokenId` token from `from` to `to`.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must exist and be owned by `from`.\n     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n     *\n     * Emits a {Transfer} event.\n     */\n    function safeTransferFrom(\n        address from,\n        address to,\n        uint256 tokenId,\n        bytes calldata data\n    ) external;\n\n    /**\n     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n     * are aware of the ERC721 protocol to prevent tokens from being forever locked.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must exist and be owned by `from`.\n     * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.\n     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n     *\n     * Emits a {Transfer} event.\n     */\n    function safeTransferFrom(\n        address from,\n        address to,\n        uint256 tokenId\n    ) external;\n\n    /**\n     * @dev Transfers `tokenId` token from `from` to `to`.\n     *\n     * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must be owned by `from`.\n     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transferFrom(\n        address from,\n        address to,\n        uint256 tokenId\n    ) external;\n\n    /**\n     * @dev Gives permission to `to` to transfer `tokenId` token to another account.\n     * The approval is cleared when the token is transferred.\n     *\n     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.\n     *\n     * Requirements:\n     *\n     * - The caller must own the token or be an approved operator.\n     * - `tokenId` must exist.\n     *\n     * Emits an {Approval} event.\n     */\n    function approve(address to, uint256 tokenId) external;\n\n    /**\n     * @dev Approve or remove `operator` as an operator for the caller.\n     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.\n     *\n     * Requirements:\n     *\n     * - The `operator` cannot be the caller.\n     *\n     * Emits an {ApprovalForAll} event.\n     */\n    function setApprovalForAll(address operator, bool _approved) external;\n\n    /**\n     * @dev Returns the account approved for `tokenId` token.\n     *\n     * Requirements:\n     *\n     * - `tokenId` must exist.\n     */\n    function getApproved(uint256 tokenId) external view returns (address operator);\n\n    /**\n     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n     *\n     * See {setApprovalForAll}\n     */\n    function isApprovedForAll(address owner, address operator) external view returns (bool);\n}\n"
      },
      "contracts/@openzeppelin/contracts/token/ERC1155/IERC1155.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC1155/IERC1155.sol)\n\npragma solidity 0.8.10;\n\nimport \"../../utils/introspection/IERC165.sol\";\n\n/**\n * @dev Required interface of an ERC1155 compliant contract, as defined in the\n * https://eips.ethereum.org/EIPS/eip-1155[EIP].\n *\n * _Available since v3.1._\n */\ninterface IERC1155 is IERC165 {\n    /**\n     * @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`.\n     */\n    event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value);\n\n    /**\n     * @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all\n     * transfers.\n     */\n    event TransferBatch(\n        address indexed operator,\n        address indexed from,\n        address indexed to,\n        uint256[] ids,\n        uint256[] values\n    );\n\n    /**\n     * @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to\n     * `approved`.\n     */\n    event ApprovalForAll(address indexed account, address indexed operator, bool approved);\n\n    /**\n     * @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI.\n     *\n     * If an {URI} event was emitted for `id`, the standard\n     * https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value\n     * returned by {IERC1155MetadataURI-uri}.\n     */\n    event URI(string value, uint256 indexed id);\n\n    /**\n     * @dev Returns the amount of tokens of token type `id` owned by `account`.\n     *\n     * Requirements:\n     *\n     * - `account` cannot be the zero address.\n     */\n    function balanceOf(address account, uint256 id) external view returns (uint256);\n\n    /**\n     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}.\n     *\n     * Requirements:\n     *\n     * - `accounts` and `ids` must have the same length.\n     */\n    function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids)\n        external\n        view\n        returns (uint256[] memory);\n\n    /**\n     * @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`,\n     *\n     * Emits an {ApprovalForAll} event.\n     *\n     * Requirements:\n     *\n     * - `operator` cannot be the caller.\n     */\n    function setApprovalForAll(address operator, bool approved) external;\n\n    /**\n     * @dev Returns true if `operator` is approved to transfer ``account``'s tokens.\n     *\n     * See {setApprovalForAll}.\n     */\n    function isApprovedForAll(address account, address operator) external view returns (bool);\n\n    /**\n     * @dev Transfers `amount` tokens of token type `id` from `from` to `to`.\n     *\n     * Emits a {TransferSingle} event.\n     *\n     * Requirements:\n     *\n     * - `to` cannot be the zero address.\n     * - If the caller is not `from`, it must have been approved to spend ``from``'s tokens via {setApprovalForAll}.\n     * - `from` must have a balance of tokens of type `id` of at least `amount`.\n     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the\n     * acceptance magic value.\n     */\n    function safeTransferFrom(\n        address from,\n        address to,\n        uint256 id,\n        uint256 amount,\n        bytes calldata data\n    ) external;\n\n    /**\n     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}.\n     *\n     * Emits a {TransferBatch} event.\n     *\n     * Requirements:\n     *\n     * - `ids` and `amounts` must have the same length.\n     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the\n     * acceptance magic value.\n     */\n    function safeBatchTransferFrom(\n        address from,\n        address to,\n        uint256[] calldata ids,\n        uint256[] calldata amounts,\n        bytes calldata data\n    ) external;\n}\n"
      },
      "contracts/@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/utils/SafeERC20.sol)\n\npragma solidity 0.8.10;\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"
      },
      "contracts/@openzeppelin/contracts/token/ERC20/extensions/draft-IERC20Permit.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol)\n\npragma solidity 0.8.10;\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"
      },
      "contracts/@openzeppelin/contracts/utils/Address.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)\n\npragma solidity 0.8.10;\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 functionCall(target, data, \"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        require(isContract(target), \"Address: call to non-contract\");\n\n        (bool success, bytes memory returndata) = target.call{value: value}(data);\n        return verifyCallResult(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        require(isContract(target), \"Address: static call to non-contract\");\n\n        (bool success, bytes memory returndata) = target.staticcall(data);\n        return verifyCallResult(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        require(isContract(target), \"Address: delegate call to non-contract\");\n\n        (bool success, bytes memory returndata) = target.delegatecall(data);\n        return verifyCallResult(success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the\n     * revert reason 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            // 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}\n"
      },
      "contracts/@openzeppelin/contracts/utils/Context.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)\n\npragma solidity 0.8.10;\n\n/**\n * @dev Provides information about the current execution context, including the\n * sender of the transaction and its data. While these are generally available\n * via msg.sender and msg.data, they should not be accessed in such a direct\n * manner, since when dealing with meta-transactions the account sending and\n * paying for execution may not be the actual sender (as far as an application\n * is concerned).\n *\n * This contract is only required for intermediate, library-like contracts.\n */\nabstract contract Context {\n    function _msgSender() internal view virtual returns (address) {\n        return msg.sender;\n    }\n\n    function _msgData() internal view virtual returns (bytes calldata) {\n        return msg.data;\n    }\n}\n"
      }
    },
    "settings": {
      "optimizer": {
        "enabled": false,
        "runs": 200
      },
      "outputSelection": {
        "*": {
          "*": [
            "evm.bytecode",
            "evm.deployedBytecode",
            "devdoc",
            "userdoc",
            "metadata",
            "abi"
          ]
        }
      },
      "metadata": {
        "useLiteralContent": true
      },
      "libraries": {}
    }
  }}