creation_sourcecode: {{
    "language": "Solidity",
    "sources": {
      "contracts/MultisigFreezeVoting.sol": {
        "content": "//SPDX-License-Identifier: MIT\npragma solidity =0.8.19;\n\nimport { BaseFreezeVoting, IBaseFreezeVoting } from \"./BaseFreezeVoting.sol\";\nimport { ISafe } from \"./interfaces/ISafe.sol\";\n\n/**\n * A BaseFreezeVoting implementation which handles freezes on multi-sig (Safe) based DAOs.\n */\ncontract MultisigFreezeVoting is BaseFreezeVoting {\n    ISafe public parentGnosisSafe;\n\n    event MultisigFreezeVotingSetup(\n        address indexed owner,\n        address indexed parentGnosisSafe\n    );\n\n    error NotOwner();\n    error AlreadyVoted();\n\n    /**\n     * Initialize function, will be triggered when a new instance is deployed.\n     *\n     * @param initializeParams encoded initialization parameters: `address _owner`,\n     * `uint256 _freezeVotesThreshold`, `uint256 _freezeProposalPeriod`, `uint256 _freezePeriod`,\n     * `address _parentGnosisSafe`\n     */\n    function setUp(bytes memory initializeParams) public override initializer {\n        (\n            address _owner,\n            uint256 _freezeVotesThreshold,\n            uint32 _freezeProposalPeriod,\n            uint32 _freezePeriod,\n            address _parentGnosisSafe\n        ) = abi.decode(\n                initializeParams,\n                (address, uint256, uint32, uint32, address)\n            );\n\n        __Ownable_init();\n        _transferOwnership(_owner);\n        _updateFreezeVotesThreshold(_freezeVotesThreshold);\n        _updateFreezeProposalPeriod(_freezeProposalPeriod);\n        _updateFreezePeriod(_freezePeriod);\n        parentGnosisSafe = ISafe(_parentGnosisSafe);\n\n        emit MultisigFreezeVotingSetup(_owner, _parentGnosisSafe);\n    }\n\n    /** @inheritdoc IBaseFreezeVoting*/\n    function castFreezeVote() external override {\n        if (!parentGnosisSafe.isOwner(msg.sender)) revert NotOwner();\n\n        if (block.number > freezeProposalCreatedBlock + freezeProposalPeriod) {\n            // create a new freeze proposal and count the caller's vote\n\n            freezeProposalCreatedBlock = uint32(block.number);\n\n            freezeProposalVoteCount = 1;\n\n            emit FreezeProposalCreated(msg.sender);\n        } else {\n            // there is an existing freeze proposal, count the caller's vote\n\n            if (userHasFreezeVoted[msg.sender][freezeProposalCreatedBlock])\n                revert AlreadyVoted();\n\n            freezeProposalVoteCount++;\n        }\n\n        userHasFreezeVoted[msg.sender][freezeProposalCreatedBlock] = true;\n\n        emit FreezeVoteCast(msg.sender, 1);\n    }\n}\n"
      },
      "contracts/BaseFreezeVoting.sol": {
        "content": "//SPDX-License-Identifier: MIT\npragma solidity =0.8.19;\n\nimport { FactoryFriendly } from \"@gnosis.pm/zodiac/contracts/factory/FactoryFriendly.sol\";\nimport { IBaseFreezeVoting } from \"./interfaces/IBaseFreezeVoting.sol\";\n\n/**\n * The base abstract contract which holds the state of a vote to freeze a childDAO.\n *\n * The freeze feature gives a way for parentDAOs to have a limited measure of control\n * over their created subDAOs.\n *\n * Normally a subDAO operates independently, and can vote on or sign transactions, \n * however should the parent disagree with a decision made by the subDAO, any parent\n * token holder can initiate a vote to \"freeze\" it, making executing transactions impossible\n * for the time denoted by `freezePeriod`.\n *\n * This requires a number of votes equal to `freezeVotesThreshold`, within the `freezeProposalPeriod`\n * to be successful.\n *\n * Following a successful freeze vote, the childDAO will be unable to execute transactions, due to\n * a Safe Transaction Guard, until the `freezePeriod` has elapsed.\n */\nabstract contract BaseFreezeVoting is FactoryFriendly, IBaseFreezeVoting {\n\n    /** Block number the freeze proposal was created at. */\n    uint32 public freezeProposalCreatedBlock;\n\n    /** Number of blocks a freeze proposal has to succeed. */\n    uint32 public freezeProposalPeriod;\n\n    /** Number of blocks a freeze lasts, from time of freeze proposal creation. */\n    uint32 public freezePeriod;\n\n    /** Number of freeze votes required to activate a freeze. */\n    uint256 public freezeVotesThreshold;\n\n    /** Number of accrued freeze votes. */\n    uint256 public freezeProposalVoteCount;\n\n    /**\n    * Mapping of address to the block the freeze vote was started to \n    * whether the address has voted yet on the freeze proposal.\n    */\n    mapping(address => mapping(uint256 => bool)) public userHasFreezeVoted;\n\n    event FreezeVoteCast(address indexed voter, uint256 votesCast);\n    event FreezeProposalCreated(address indexed creator);\n    event FreezeVotesThresholdUpdated(uint256 freezeVotesThreshold);\n    event FreezePeriodUpdated(uint32 freezePeriod);\n    event FreezeProposalPeriodUpdated(uint32 freezeProposalPeriod);\n\n    constructor() {\n      _disableInitializers();\n    }\n\n    /**\n     * Casts a positive vote to freeze the subDAO. This function is intended to be called\n     * by the individual token holders themselves directly, and will allot their token\n     * holdings a \"yes\" votes towards freezing.\n     *\n     * Additionally, if a vote to freeze is not already running, calling this will initiate\n     * a new vote to freeze it.\n     */\n    function castFreezeVote() external virtual;\n\n    /**\n     * Returns true if the DAO is currently frozen, false otherwise.\n     * \n     * @return bool whether the DAO is currently frozen\n     */\n    function isFrozen() external view returns (bool) {\n        return freezeProposalVoteCount >= freezeVotesThreshold \n            && block.number < freezeProposalCreatedBlock + freezePeriod;\n    }\n\n    /**\n     * Unfreezes the DAO, only callable by the owner (parentDAO).\n     */\n    function unfreeze() external onlyOwner {\n        freezeProposalCreatedBlock = 0;\n        freezeProposalVoteCount = 0;\n    }\n\n    /**\n     * Updates the freeze votes threshold, the number of votes required to enact a freeze.\n     *\n     * @param _freezeVotesThreshold number of freeze votes required to activate a freeze\n     */\n    function updateFreezeVotesThreshold(uint256 _freezeVotesThreshold) external onlyOwner {\n        _updateFreezeVotesThreshold(_freezeVotesThreshold);\n    }\n\n    /**\n     * Updates the freeze proposal period, the time that parent token holders have to cast votes\n     * after a freeze vote has been initiated.\n     *\n     * @param _freezeProposalPeriod number of blocks a freeze vote has to succeed to enact a freeze\n     */\n    function updateFreezeProposalPeriod(uint32 _freezeProposalPeriod) external onlyOwner {\n        _updateFreezeProposalPeriod(_freezeProposalPeriod);\n    }\n\n    /**\n     * Updates the freeze period, the time the DAO will be unable to execute transactions for,\n     * should a freeze vote pass.\n     *\n     * @param _freezePeriod number of blocks a freeze lasts, from time of freeze proposal creation\n     */\n    function updateFreezePeriod(uint32 _freezePeriod) external onlyOwner {\n        _updateFreezePeriod(_freezePeriod);\n    }\n\n    /** Internal implementation of `updateFreezeVotesThreshold`. */\n    function _updateFreezeVotesThreshold(uint256 _freezeVotesThreshold) internal {\n        freezeVotesThreshold = _freezeVotesThreshold;\n        emit FreezeVotesThresholdUpdated(_freezeVotesThreshold);\n    }\n\n    /** Internal implementation of `updateFreezeProposalPeriod`. */\n    function _updateFreezeProposalPeriod(uint32 _freezeProposalPeriod) internal {\n        freezeProposalPeriod = _freezeProposalPeriod;\n        emit FreezeProposalPeriodUpdated(_freezeProposalPeriod);\n    }\n\n    /** Internal implementation of `updateFreezePeriod`. */\n    function _updateFreezePeriod(uint32 _freezePeriod) internal {\n        freezePeriod = _freezePeriod;\n        emit FreezePeriodUpdated(_freezePeriod);\n    }\n}\n"
      },
      "contracts/interfaces/ISafe.sol": {
        "content": "//SPDX-License-Identifier: MIT\npragma solidity =0.8.19;\n\nimport { Enum } from \"@gnosis.pm/safe-contracts/contracts/common/Enum.sol\";\n\n/**\n * The specification of methods available on a Safe contract wallet.\n * \n * This interface does not encompass every available function on a Safe,\n * only those which are used within the Azorius contracts.\n *\n * For the complete set of functions available on a Safe, see:\n * https://github.com/safe-global/safe-contracts/blob/main/contracts/Safe.sol\n */\ninterface ISafe {\n\n    /**\n     * Returns the current transaction nonce of the Safe.\n     * Each transaction should has a different nonce to prevent replay attacks.\n     *\n     * @return uint256 current transaction nonce\n     */\n    function nonce() external view returns (uint256);\n\n    /**\n     * Set a guard contract that checks transactions before execution.\n     * This can only be done via a Safe transaction.\n     *\n     * See https://docs.gnosis-safe.io/learn/safe-tools/guards.\n     * See https://github.com/safe-global/safe-contracts/blob/main/contracts/base/GuardManager.sol.\n     * \n     * @param _guard address of the guard to be used or the 0 address to disable a guard\n     */\n    function setGuard(address _guard) external;\n\n    /**\n     * Executes an arbitrary transaction on the Safe.\n     *\n     * @param _to destination address\n     * @param _value ETH value\n     * @param _data data payload\n     * @param _operation Operation type, Call or DelegateCall\n     * @param _safeTxGas gas that should be used for the safe transaction\n     * @param _baseGas gas costs that are independent of the transaction execution\n     * @param _gasPrice max gas price that should be used for this transaction\n     * @param _gasToken token address (or 0 if ETH) that is used for the payment\n     * @param _refundReceiver address of the receiver of gas payment (or 0 if tx.origin)\n     * @param _signatures packed signature data\n     * @return success bool whether the transaction was successful or not\n     */\n    function execTransaction(\n        address _to,\n        uint256 _value,\n        bytes calldata _data,\n        Enum.Operation _operation,\n        uint256 _safeTxGas,\n        uint256 _baseGas,\n        uint256 _gasPrice,\n        address _gasToken,\n        address payable _refundReceiver,\n        bytes memory _signatures\n    ) external payable returns (bool success);\n\n    /**\n     * Checks whether the signature provided is valid for the provided data and hash. Reverts otherwise.\n     *\n     * @param _dataHash Hash of the data (could be either a message hash or transaction hash)\n     * @param _data That should be signed (this is passed to an external validator contract)\n     * @param _signatures Signature data that should be verified. Can be packed ECDSA signature \n     *      ({bytes32 r}{bytes32 s}{uint8 v}), contract signature (EIP-1271) or approved hash.\n     */\n    function checkSignatures(bytes32 _dataHash, bytes memory _data, bytes memory _signatures) external view;\n\n    /**\n     * Returns the pre-image of the transaction hash.\n     *\n     * @param _to destination address\n     * @param _value ETH value\n     * @param _data data payload\n     * @param _operation Operation type, Call or DelegateCall\n     * @param _safeTxGas gas that should be used for the safe transaction\n     * @param _baseGas gas costs that are independent of the transaction execution\n     * @param _gasPrice max gas price that should be used for this transaction\n     * @param _gasToken token address (or 0 if ETH) that is used for the payment\n     * @param _refundReceiver address of the receiver of gas payment (or 0 if tx.origin)\n     * @param _nonce transaction nonce\n     * @return bytes hash bytes\n     */\n    function encodeTransactionData(\n        address _to,\n        uint256 _value,\n        bytes calldata _data,\n        Enum.Operation _operation,\n        uint256 _safeTxGas,\n        uint256 _baseGas,\n        uint256 _gasPrice,\n        address _gasToken,\n        address _refundReceiver,\n        uint256 _nonce\n    ) external view returns (bytes memory);\n\n    /**\n     * Returns if the given address is an owner of the Safe.\n     *\n     * See https://github.com/safe-global/safe-contracts/blob/main/contracts/base/OwnerManager.sol.\n     *\n     * @param _owner the address to check\n     * @return bool whether _owner is an owner of the Safe\n     */\n    function isOwner(address _owner) external view returns (bool);\n}\n"
      },
      "@gnosis.pm/zodiac/contracts/factory/FactoryFriendly.sol": {
        "content": "// SPDX-License-Identifier: LGPL-3.0-only\n\n/// @title Zodiac FactoryFriendly - A contract that allows other contracts to be initializable and pass bytes as arguments to define contract state\npragma solidity >=0.7.0 <0.9.0;\n\nimport \"@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol\";\n\nabstract contract FactoryFriendly is OwnableUpgradeable {\n    function setUp(bytes memory initializeParams) public virtual;\n}\n"
      },
      "contracts/interfaces/IBaseFreezeVoting.sol": {
        "content": "//SPDX-License-Identifier: MIT\npragma solidity =0.8.19;\n\nimport { Enum } from \"@gnosis.pm/safe-contracts/contracts/common/Enum.sol\";\n\n/**\n * A specification for a contract which manages the ability to call for and cast a vote\n * to freeze a subDAO.\n *\n * The participants of this vote are parent token holders or signers. The DAO should be\n * able to operate as normal throughout the freeze voting process, however if the vote\n * passes, further transaction executions on the subDAO should be blocked via a Safe guard\n * module (see [MultisigFreezeGuard](../MultisigFreezeGuard.md) / [AzoriusFreezeGuard](../AzoriusFreezeGuard.md)).\n */\ninterface IBaseFreezeVoting {\n\n    /**\n     * Allows an address to cast a \"freeze vote\", which is a vote to freeze the DAO\n     * from executing transactions, even if they've already passed via a Proposal.\n     *\n     * If a vote to freeze has not already been initiated, a call to this function will do\n     * so.\n     *\n     * This function should be publicly callable by any DAO token holder or signer.\n     */\n    function castFreezeVote() external;\n\n    /**\n     * Unfreezes the DAO.\n     */\n    function unfreeze() external;\n\n    /**\n     * Updates the freeze votes threshold for future freeze votes. This is the number of token\n     * votes necessary to begin a freeze on the subDAO.\n     *\n     * @param _freezeVotesThreshold number of freeze votes required to activate a freeze\n     */\n    function updateFreezeVotesThreshold(uint256 _freezeVotesThreshold) external;\n\n    /**\n     * Updates the freeze proposal period for future freeze votes. This is the length of time\n     * (in blocks) that a freeze vote is conducted for.\n     *\n     * @param _freezeProposalPeriod number of blocks a freeze proposal has to succeed\n     */\n    function updateFreezeProposalPeriod(uint32 _freezeProposalPeriod) external;\n\n    /**\n     * Updates the freeze period. This is the length of time (in blocks) the subDAO is actually\n     * frozen for if a freeze vote passes.\n     *\n     * This period can be overridden by a call to `unfreeze()`, which would require a passed Proposal\n     * from the parentDAO.\n     *\n     * @param _freezePeriod number of blocks a freeze lasts, from time of freeze proposal creation\n     */\n    function updateFreezePeriod(uint32 _freezePeriod) external;\n\n    /**\n     * Returns true if the DAO is currently frozen, false otherwise.\n     *\n     * @return bool whether the DAO is currently frozen\n     */\n    function isFrozen() external view returns (bool);\n}\n"
      },
      "@openzeppelin/contracts-upgradeable/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"
      },
      "@openzeppelin/contracts-upgradeable/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"
      },
      "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (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. Equivalent to `reinitializer(1)`.\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     * `initializer` is equivalent to `reinitializer(1)`, so a reinitializer may be used after the original\n     * initialization step. This is essential to configure modules that are added through upgrades and that require\n     * initialization.\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    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    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"
      },
      "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (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 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 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"
      },
      "@gnosis.pm/safe-contracts/contracts/common/Enum.sol": {
        "content": "// SPDX-License-Identifier: LGPL-3.0-only\npragma solidity >=0.7.0 <0.9.0;\n\n/// @title Enum - Collection of enums\n/// @author Richard Meissner - <richard@gnosis.pm>\ncontract Enum {\n    enum Operation {Call, DelegateCall}\n}\n"
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