creation_sourcecode: {{
    "language": "Solidity",
    "settings": {
      "evmVersion": "paris",
      "libraries": {},
      "metadata": {
        "bytecodeHash": "ipfs",
        "useLiteralContent": true
      },
      "optimizer": {
        "enabled": true,
        "runs": 200
      },
      "remappings": [],
      "outputSelection": {
        "*": {
          "*": [
            "evm.bytecode",
            "evm.deployedBytecode",
            "devdoc",
            "userdoc",
            "metadata",
            "abi"
          ]
        }
      }
    },
    "sources": {
      "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/ContextUpgradeable.sol\";\nimport {Initializable} from \"../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. Can only be called by the current owner.\n     *\n     * NOTE: Renouncing ownership will leave the contract without an owner,\n     * thereby disabling 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/proxy/utils/Initializable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (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 * ```solidity\n * contract MyToken is ERC20Upgradeable {\n *     function initialize() initializer public {\n *         __ERC20_init(\"MyToken\", \"MTK\");\n *     }\n * }\n *\n * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {\n *     function initializeV2() reinitializer(2) public {\n *         __ERC20Permit_init(\"MyToken\");\n *     }\n * }\n * ```\n *\n * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as\n * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.\n *\n * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure\n * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.\n *\n * [CAUTION]\n * ====\n * Avoid leaving a contract uninitialized.\n *\n * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation\n * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke\n * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:\n *\n * [.hljs-theme-light.nopadding]\n * ```\n * /// @custom:oz-upgrades-unsafe-allow constructor\n * constructor() {\n *     _disableInitializers();\n * }\n * ```\n * ====\n */\nabstract contract Initializable {\n    /**\n     * @dev Indicates that the contract has been initialized.\n     * @custom:oz-retyped-from bool\n     */\n    uint8 private _initialized;\n\n    /**\n     * @dev Indicates that the contract is in the process of being initialized.\n     */\n    bool private _initializing;\n\n    /**\n     * @dev Triggered when the contract has been initialized or reinitialized.\n     */\n    event Initialized(uint8 version);\n\n    /**\n     * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,\n     * `onlyInitializing` functions can be used to initialize parent contracts.\n     *\n     * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a\n     * constructor.\n     *\n     * Emits an {Initialized} event.\n     */\n    modifier initializer() {\n        bool isTopLevelCall = !_initializing;\n        require(\n            (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),\n            \"Initializable: contract is already initialized\"\n        );\n        _initialized = 1;\n        if (isTopLevelCall) {\n            _initializing = true;\n        }\n        _;\n        if (isTopLevelCall) {\n            _initializing = false;\n            emit Initialized(1);\n        }\n    }\n\n    /**\n     * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the\n     * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be\n     * used to initialize parent contracts.\n     *\n     * A reinitializer may be used after the original initialization step. This is essential to configure modules that\n     * are added through upgrades and that require initialization.\n     *\n     * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`\n     * cannot be nested. If one is invoked in the context of another, execution will revert.\n     *\n     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in\n     * a contract, executing them in the right order is up to the developer or operator.\n     *\n     * WARNING: setting the version to 255 will prevent any future reinitialization.\n     *\n     * Emits an {Initialized} event.\n     */\n    modifier reinitializer(uint8 version) {\n        require(!_initializing && _initialized < version, \"Initializable: contract is already initialized\");\n        _initialized = version;\n        _initializing = true;\n        _;\n        _initializing = false;\n        emit Initialized(version);\n    }\n\n    /**\n     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the\n     * {initializer} and {reinitializer} modifiers, directly or indirectly.\n     */\n    modifier onlyInitializing() {\n        require(_initializing, \"Initializable: contract is not initializing\");\n        _;\n    }\n\n    /**\n     * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.\n     * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized\n     * to any version. It is recommended to use this to lock implementation contracts that are designed to be called\n     * through proxies.\n     *\n     * Emits an {Initialized} event the first time it is successfully executed.\n     */\n    function _disableInitializers() internal virtual {\n        require(!_initializing, \"Initializable: contract is initializing\");\n        if (_initialized != type(uint8).max) {\n            _initialized = type(uint8).max;\n            emit Initialized(type(uint8).max);\n        }\n    }\n\n    /**\n     * @dev Returns the highest version that has been initialized. See {reinitializer}.\n     */\n    function _getInitializedVersion() internal view returns (uint8) {\n        return _initialized;\n    }\n\n    /**\n     * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.\n     */\n    function _isInitializing() internal view returns (bool) {\n        return _initializing;\n    }\n}\n"
      },
      "@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/ERC20.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC20Upgradeable.sol\";\nimport \"./extensions/IERC20MetadataUpgradeable.sol\";\nimport \"../../utils/ContextUpgradeable.sol\";\nimport {Initializable} from \"../../proxy/utils/Initializable.sol\";\n\n/**\n * @dev Implementation of the {IERC20} interface.\n *\n * This implementation is agnostic to the way tokens are created. This means\n * that a supply mechanism has to be added in a derived contract using {_mint}.\n * For a generic mechanism see {ERC20PresetMinterPauser}.\n *\n * TIP: For a detailed writeup see our guide\n * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How\n * to implement supply mechanisms].\n *\n * The default value of {decimals} is 18. To change this, you should override\n * this function so it returns a different value.\n *\n * We have followed general OpenZeppelin Contracts guidelines: functions revert\n * instead returning `false` on failure. This behavior is nonetheless\n * conventional and does not conflict with the expectations of ERC20\n * applications.\n *\n * Additionally, an {Approval} event is emitted on calls to {transferFrom}.\n * This allows applications to reconstruct the allowance for all accounts just\n * by listening to said events. Other implementations of the EIP may not emit\n * these events, as it isn't required by the specification.\n *\n * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}\n * functions have been added to mitigate the well-known issues around setting\n * allowances. See {IERC20-approve}.\n */\ncontract ERC20Upgradeable is Initializable, ContextUpgradeable, IERC20Upgradeable, IERC20MetadataUpgradeable {\n    mapping(address => uint256) private _balances;\n\n    mapping(address => mapping(address => uint256)) private _allowances;\n\n    uint256 private _totalSupply;\n\n    string private _name;\n    string private _symbol;\n\n    /**\n     * @dev Sets the values for {name} and {symbol}.\n     *\n     * All two of these values are immutable: they can only be set once during\n     * construction.\n     */\n    function __ERC20_init(string memory name_, string memory symbol_) internal onlyInitializing {\n        __ERC20_init_unchained(name_, symbol_);\n    }\n\n    function __ERC20_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing {\n        _name = name_;\n        _symbol = symbol_;\n    }\n\n    /**\n     * @dev Returns the name of the token.\n     */\n    function name() public view virtual override returns (string memory) {\n        return _name;\n    }\n\n    /**\n     * @dev Returns the symbol of the token, usually a shorter version of the\n     * name.\n     */\n    function symbol() public view virtual override returns (string memory) {\n        return _symbol;\n    }\n\n    /**\n     * @dev Returns the number of decimals used to get its user representation.\n     * For example, if `decimals` equals `2`, a balance of `505` tokens should\n     * be displayed to a user as `5.05` (`505 / 10 ** 2`).\n     *\n     * Tokens usually opt for a value of 18, imitating the relationship between\n     * Ether and Wei. This is the default value returned by this function, unless\n     * it's overridden.\n     *\n     * NOTE: This information is only used for _display_ purposes: it in\n     * no way affects any of the arithmetic of the contract, including\n     * {IERC20-balanceOf} and {IERC20-transfer}.\n     */\n    function decimals() public view virtual override returns (uint8) {\n        return 18;\n    }\n\n    /**\n     * @dev See {IERC20-totalSupply}.\n     */\n    function totalSupply() public view virtual override returns (uint256) {\n        return _totalSupply;\n    }\n\n    /**\n     * @dev See {IERC20-balanceOf}.\n     */\n    function balanceOf(address account) public view virtual override returns (uint256) {\n        return _balances[account];\n    }\n\n    /**\n     * @dev See {IERC20-transfer}.\n     *\n     * Requirements:\n     *\n     * - `to` cannot be the zero address.\n     * - the caller must have a balance of at least `amount`.\n     */\n    function transfer(address to, uint256 amount) public virtual override returns (bool) {\n        address owner = _msgSender();\n        _transfer(owner, to, amount);\n        return true;\n    }\n\n    /**\n     * @dev See {IERC20-allowance}.\n     */\n    function allowance(address owner, address spender) public view virtual override returns (uint256) {\n        return _allowances[owner][spender];\n    }\n\n    /**\n     * @dev See {IERC20-approve}.\n     *\n     * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on\n     * `transferFrom`. This is semantically equivalent to an infinite approval.\n     *\n     * Requirements:\n     *\n     * - `spender` cannot be the zero address.\n     */\n    function approve(address spender, uint256 amount) public virtual override returns (bool) {\n        address owner = _msgSender();\n        _approve(owner, spender, amount);\n        return true;\n    }\n\n    /**\n     * @dev See {IERC20-transferFrom}.\n     *\n     * Emits an {Approval} event indicating the updated allowance. This is not\n     * required by the EIP. See the note at the beginning of {ERC20}.\n     *\n     * NOTE: Does not update the allowance if the current allowance\n     * is the maximum `uint256`.\n     *\n     * Requirements:\n     *\n     * - `from` and `to` cannot be the zero address.\n     * - `from` must have a balance of at least `amount`.\n     * - the caller must have allowance for ``from``'s tokens of at least\n     * `amount`.\n     */\n    function transferFrom(address from, address to, uint256 amount) public virtual override returns (bool) {\n        address spender = _msgSender();\n        _spendAllowance(from, spender, amount);\n        _transfer(from, to, amount);\n        return true;\n    }\n\n    /**\n     * @dev Atomically increases the allowance granted to `spender` by the caller.\n     *\n     * This is an alternative to {approve} that can be used as a mitigation for\n     * problems described in {IERC20-approve}.\n     *\n     * Emits an {Approval} event indicating the updated allowance.\n     *\n     * Requirements:\n     *\n     * - `spender` cannot be the zero address.\n     */\n    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {\n        address owner = _msgSender();\n        _approve(owner, spender, allowance(owner, spender) + addedValue);\n        return true;\n    }\n\n    /**\n     * @dev Atomically decreases the allowance granted to `spender` by the caller.\n     *\n     * This is an alternative to {approve} that can be used as a mitigation for\n     * problems described in {IERC20-approve}.\n     *\n     * Emits an {Approval} event indicating the updated allowance.\n     *\n     * Requirements:\n     *\n     * - `spender` cannot be the zero address.\n     * - `spender` must have allowance for the caller of at least\n     * `subtractedValue`.\n     */\n    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {\n        address owner = _msgSender();\n        uint256 currentAllowance = allowance(owner, spender);\n        require(currentAllowance >= subtractedValue, \"ERC20: decreased allowance below zero\");\n        unchecked {\n            _approve(owner, spender, currentAllowance - subtractedValue);\n        }\n\n        return true;\n    }\n\n    /**\n     * @dev Moves `amount` of tokens from `from` to `to`.\n     *\n     * This internal function is equivalent to {transfer}, and can be used to\n     * e.g. implement automatic token fees, slashing mechanisms, etc.\n     *\n     * Emits a {Transfer} event.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `from` must have a balance of at least `amount`.\n     */\n    function _transfer(address from, address to, uint256 amount) internal virtual {\n        require(from != address(0), \"ERC20: transfer from the zero address\");\n        require(to != address(0), \"ERC20: transfer to the zero address\");\n\n        _beforeTokenTransfer(from, to, amount);\n\n        uint256 fromBalance = _balances[from];\n        require(fromBalance >= amount, \"ERC20: transfer amount exceeds balance\");\n        unchecked {\n            _balances[from] = fromBalance - amount;\n            // Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by\n            // decrementing then incrementing.\n            _balances[to] += amount;\n        }\n\n        emit Transfer(from, to, amount);\n\n        _afterTokenTransfer(from, to, amount);\n    }\n\n    /** @dev Creates `amount` tokens and assigns them to `account`, increasing\n     * the total supply.\n     *\n     * Emits a {Transfer} event with `from` set to the zero address.\n     *\n     * Requirements:\n     *\n     * - `account` cannot be the zero address.\n     */\n    function _mint(address account, uint256 amount) internal virtual {\n        require(account != address(0), \"ERC20: mint to the zero address\");\n\n        _beforeTokenTransfer(address(0), account, amount);\n\n        _totalSupply += amount;\n        unchecked {\n            // Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above.\n            _balances[account] += amount;\n        }\n        emit Transfer(address(0), account, amount);\n\n        _afterTokenTransfer(address(0), account, amount);\n    }\n\n    /**\n     * @dev Destroys `amount` tokens from `account`, reducing the\n     * total supply.\n     *\n     * Emits a {Transfer} event with `to` set to the zero address.\n     *\n     * Requirements:\n     *\n     * - `account` cannot be the zero address.\n     * - `account` must have at least `amount` tokens.\n     */\n    function _burn(address account, uint256 amount) internal virtual {\n        require(account != address(0), \"ERC20: burn from the zero address\");\n\n        _beforeTokenTransfer(account, address(0), amount);\n\n        uint256 accountBalance = _balances[account];\n        require(accountBalance >= amount, \"ERC20: burn amount exceeds balance\");\n        unchecked {\n            _balances[account] = accountBalance - amount;\n            // Overflow not possible: amount <= accountBalance <= totalSupply.\n            _totalSupply -= amount;\n        }\n\n        emit Transfer(account, address(0), amount);\n\n        _afterTokenTransfer(account, address(0), amount);\n    }\n\n    /**\n     * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.\n     *\n     * This internal function is equivalent to `approve`, and can be used to\n     * e.g. set automatic allowances for certain subsystems, etc.\n     *\n     * Emits an {Approval} event.\n     *\n     * Requirements:\n     *\n     * - `owner` cannot be the zero address.\n     * - `spender` cannot be the zero address.\n     */\n    function _approve(address owner, address spender, uint256 amount) internal virtual {\n        require(owner != address(0), \"ERC20: approve from the zero address\");\n        require(spender != address(0), \"ERC20: approve to the zero address\");\n\n        _allowances[owner][spender] = amount;\n        emit Approval(owner, spender, amount);\n    }\n\n    /**\n     * @dev Updates `owner` s allowance for `spender` based on spent `amount`.\n     *\n     * Does not update the allowance amount in case of infinite allowance.\n     * Revert if not enough allowance is available.\n     *\n     * Might emit an {Approval} event.\n     */\n    function _spendAllowance(address owner, address spender, uint256 amount) internal virtual {\n        uint256 currentAllowance = allowance(owner, spender);\n        if (currentAllowance != type(uint256).max) {\n            require(currentAllowance >= amount, \"ERC20: insufficient allowance\");\n            unchecked {\n                _approve(owner, spender, currentAllowance - amount);\n            }\n        }\n    }\n\n    /**\n     * @dev Hook that is called before any transfer of tokens. This includes\n     * minting and burning.\n     *\n     * Calling conditions:\n     *\n     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n     * will be transferred to `to`.\n     * - when `from` is zero, `amount` tokens will be minted for `to`.\n     * - when `to` is zero, `amount` of ``from``'s tokens will be burned.\n     * - `from` and `to` are never both zero.\n     *\n     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n     */\n    function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual {}\n\n    /**\n     * @dev Hook that is called after any transfer of tokens. This includes\n     * minting and burning.\n     *\n     * Calling conditions:\n     *\n     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n     * has been transferred to `to`.\n     * - when `from` is zero, `amount` tokens have been minted for `to`.\n     * - when `to` is zero, `amount` of ``from``'s tokens have been burned.\n     * - `from` and `to` are never both zero.\n     *\n     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n     */\n    function _afterTokenTransfer(address from, address to, uint256 amount) internal virtual {}\n\n    /**\n     * @dev This empty reserved space is put in place to allow future versions to add new\n     * variables without shifting down storage in the inheritance chain.\n     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n     */\n    uint256[45] private __gap;\n}\n"
      },
      "@openzeppelin/contracts-upgradeable/token/ERC20/IERC20Upgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20Upgradeable {\n    /**\n     * @dev Emitted when `value` tokens are moved from one account (`from`) to\n     * another (`to`).\n     *\n     * Note that `value` may be zero.\n     */\n    event Transfer(address indexed from, address indexed to, uint256 value);\n\n    /**\n     * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n     * a call to {approve}. `value` is the new allowance.\n     */\n    event Approval(address indexed owner, address indexed spender, uint256 value);\n\n    /**\n     * @dev Returns the amount of tokens in existence.\n     */\n    function totalSupply() external view returns (uint256);\n\n    /**\n     * @dev Returns the amount of tokens owned by `account`.\n     */\n    function balanceOf(address account) external view returns (uint256);\n\n    /**\n     * @dev Moves `amount` tokens from the caller's account to `to`.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transfer(address to, uint256 amount) external returns (bool);\n\n    /**\n     * @dev Returns the remaining number of tokens that `spender` will be\n     * allowed to spend on behalf of `owner` through {transferFrom}. This is\n     * zero by default.\n     *\n     * This value changes when {approve} or {transferFrom} are called.\n     */\n    function allowance(address owner, address spender) external view returns (uint256);\n\n    /**\n     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * IMPORTANT: Beware that changing an allowance with this method brings the risk\n     * that someone may use both the old and the new allowance by unfortunate\n     * transaction ordering. One possible solution to mitigate this race\n     * condition is to first reduce the spender's allowance to 0 and set the\n     * desired value afterwards:\n     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n     *\n     * Emits an {Approval} event.\n     */\n    function approve(address spender, uint256 amount) external returns (bool);\n\n    /**\n     * @dev Moves `amount` tokens from `from` to `to` using the\n     * allowance mechanism. `amount` is then deducted from the caller's\n     * allowance.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transferFrom(address from, address to, uint256 amount) external returns (bool);\n}\n"
      },
      "@openzeppelin/contracts-upgradeable/token/ERC20/extensions/IERC20MetadataUpgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC20Upgradeable.sol\";\n\n/**\n * @dev Interface for the optional metadata functions from the ERC20 standard.\n *\n * _Available since v4.1._\n */\ninterface IERC20MetadataUpgradeable is IERC20Upgradeable {\n    /**\n     * @dev Returns the name of the token.\n     */\n    function name() external view returns (string memory);\n\n    /**\n     * @dev Returns the symbol of the token.\n     */\n    function symbol() external view returns (string memory);\n\n    /**\n     * @dev Returns the decimals places of the token.\n     */\n    function decimals() external view returns (uint8);\n}\n"
      },
      "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (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     * Furthermore, `isContract` will also return true if the target contract within\n     * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,\n     * which only has an effect at the end of a transaction.\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://consensys.net/diligence/blog/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/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n     */\n    function sendValue(address payable recipient, uint256 amount) internal {\n        require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n        (bool success, ) = recipient.call{value: amount}(\"\");\n        require(success, \"Address: unable to send value, recipient may have reverted\");\n    }\n\n    /**\n     * @dev Performs a Solidity function call using a low level `call`. A\n     * plain `call` is an unsafe replacement for a function call: use this\n     * function instead.\n     *\n     * If `target` reverts with a revert reason, it is bubbled up by this\n     * function (like regular Solidity function calls).\n     *\n     * Returns the raw returned data. To convert to the expected return value,\n     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n     *\n     * Requirements:\n     *\n     * - `target` must be a contract.\n     * - calling `target` with `data` must not revert.\n     *\n     * _Available since v3.1._\n     */\n    function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, 0, \"Address: low-level call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n     * `errorMessage` as a fallback revert reason when `target` reverts.\n     *\n     * _Available since v3.1._\n     */\n    function functionCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, 0, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but also transferring `value` wei to `target`.\n     *\n     * Requirements:\n     *\n     * - the calling contract must have an ETH balance of at least `value`.\n     * - the called Solidity function must be `payable`.\n     *\n     * _Available since v3.1._\n     */\n    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n     * with `errorMessage` as a fallback revert reason when `target` reverts.\n     *\n     * _Available since v3.1._\n     */\n    function functionCallWithValue(\n        address target,\n        bytes memory data,\n        uint256 value,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        require(address(this).balance >= value, \"Address: insufficient balance for call\");\n        (bool success, bytes memory returndata) = target.call{value: value}(data);\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but performing a static call.\n     *\n     * _Available since v3.3._\n     */\n    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n        return functionStaticCall(target, data, \"Address: low-level static call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n     * but performing a static call.\n     *\n     * _Available since v3.3._\n     */\n    function functionStaticCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal view returns (bytes memory) {\n        (bool success, bytes memory returndata) = target.staticcall(data);\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but performing a delegate call.\n     *\n     * _Available since v3.4._\n     */\n    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n        return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n     * but performing a delegate call.\n     *\n     * _Available since v3.4._\n     */\n    function functionDelegateCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        (bool success, bytes memory returndata) = target.delegatecall(data);\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling\n     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.\n     *\n     * _Available since v4.8._\n     */\n    function verifyCallResultFromTarget(\n        address target,\n        bool success,\n        bytes memory returndata,\n        string memory errorMessage\n    ) internal view returns (bytes memory) {\n        if (success) {\n            if (returndata.length == 0) {\n                // only check isContract if the call was successful and the return data is empty\n                // otherwise we already know that it was a contract\n                require(isContract(target), \"Address: call to non-contract\");\n            }\n            return returndata;\n        } else {\n            _revert(returndata, errorMessage);\n        }\n    }\n\n    /**\n     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the\n     * revert reason or using the provided one.\n     *\n     * _Available since v4.3._\n     */\n    function verifyCallResult(\n        bool success,\n        bytes memory returndata,\n        string memory errorMessage\n    ) internal pure returns (bytes memory) {\n        if (success) {\n            return returndata;\n        } else {\n            _revert(returndata, errorMessage);\n        }\n    }\n\n    function _revert(bytes memory returndata, string memory errorMessage) private pure {\n        // Look for revert reason and bubble it up if present\n        if (returndata.length > 0) {\n            // The easiest way to bubble the revert reason is using memory via assembly\n            /// @solidity memory-safe-assembly\n            assembly {\n                let returndata_size := mload(returndata)\n                revert(add(32, returndata), returndata_size)\n            }\n        } else {\n            revert(errorMessage);\n        }\n    }\n}\n"
      },
      "@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.4) (utils/Context.sol)\n\npragma solidity ^0.8.0;\nimport {Initializable} from \"../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    function _contextSuffixLength() internal view virtual returns (uint256) {\n        return 0;\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/token/ERC20/IERC20.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20 {\n    /**\n     * @dev Emitted when `value` tokens are moved from one account (`from`) to\n     * another (`to`).\n     *\n     * Note that `value` may be zero.\n     */\n    event Transfer(address indexed from, address indexed to, uint256 value);\n\n    /**\n     * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n     * a call to {approve}. `value` is the new allowance.\n     */\n    event Approval(address indexed owner, address indexed spender, uint256 value);\n\n    /**\n     * @dev Returns the amount of tokens in existence.\n     */\n    function totalSupply() external view returns (uint256);\n\n    /**\n     * @dev Returns the amount of tokens owned by `account`.\n     */\n    function balanceOf(address account) external view returns (uint256);\n\n    /**\n     * @dev Moves `amount` tokens from the caller's account to `to`.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transfer(address to, uint256 amount) external returns (bool);\n\n    /**\n     * @dev Returns the remaining number of tokens that `spender` will be\n     * allowed to spend on behalf of `owner` through {transferFrom}. This is\n     * zero by default.\n     *\n     * This value changes when {approve} or {transferFrom} are called.\n     */\n    function allowance(address owner, address spender) external view returns (uint256);\n\n    /**\n     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * IMPORTANT: Beware that changing an allowance with this method brings the risk\n     * that someone may use both the old and the new allowance by unfortunate\n     * transaction ordering. One possible solution to mitigate this race\n     * condition is to first reduce the spender's allowance to 0 and set the\n     * desired value afterwards:\n     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n     *\n     * Emits an {Approval} event.\n     */\n    function approve(address spender, uint256 amount) external returns (bool);\n\n    /**\n     * @dev Moves `amount` tokens from `from` to `to` using the\n     * allowance mechanism. `amount` is then deducted from the caller's\n     * allowance.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transferFrom(address from, address to, uint256 amount) external returns (bool);\n}\n"
      },
      "contracts/BabyTokenDividendTracker.sol": {
        "content": "// SPDX-License-Identifier: UNLICENSED\npragma solidity ^0.8.0;\n\n/**\n *  ____  _______  _______           _     \n * |  _ \\| ____\\ \\/ /_   _|__   ___ | |___ \n * | | | |  _|  \\  /  | |/ _ \\ / _ \\| / __|\n * | |_| | |___ /  \\  | | (_) | (_) | \\__ \\\n * |____/|_____/_/\\_\\ |_|\\___/ \\___/|_|___/\n *\n * This smart contract was created effortlessly using the DEXTools Token Creator.\n * \n * 🌐 Website: https://www.dextools.io/\n * 🐦 Twitter: https://twitter.com/DEXToolsApp\n * 💬 Telegram: https://t.me/DEXToolsCommunity\n * \n * 🚀 Unleash the power of decentralized finances and tokenization with DEXTools Token Creator. Customize your token seamlessly. Manage your created tokens conveniently from your user panel - start creating your dream token today!\n */\nimport { IERC20 } from \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\nimport { ERC20Upgradeable } from \"@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol\";\nimport { OwnableUpgradeable } from \"@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol\";\n// solhint-disable-file one-contract-per-file\n\n/**\n * @title SafeERC20NoRevert\n * @dev Taken from OpenZeppelin's SafeERC20 implementation, just return a bool value without reverting\n * Clients using this function need to check for the return value themselves.\n */\nlibrary SafeERC20NoRevert {\n    function safeTransfer(\n        IERC20 token,\n        address to,\n        uint256 value\n    ) internal returns (bool) {\n        // solhint-disable-next-line avoid-low-level-calls\n        (bool success, bytes memory returndata) = address(token).call(\n            abi.encodeWithSelector(token.transfer.selector, to, value)\n        );\n        return\n            success &&\n            (returndata.length == 0 || abi.decode(returndata, (bool))) &&\n            address(token).code.length > 0;\n    }\n}\n\n/**\n * @title SafeMathInt\n * @dev Math operations for int256 with overflow safety checks.\n */\nlibrary SafeMathInt {\n    int256 private constant MIN_INT256 = int256(1) << 255;\n    int256 private constant MAX_INT256 = ~(int256(1) << 255);\n\n    /**\n     * @dev Multiplies two int256 variables and fails on overflow.\n     */\n    function mul(int256 a, int256 b) internal pure returns (int256) {\n        int256 c = a * b;\n\n        // Detect overflow when multiplying MIN_INT256 with -1\n        require(c != MIN_INT256 || (a & MIN_INT256) != (b & MIN_INT256));\n        require((b == 0) || (c / b == a));\n        return c;\n    }\n\n    /**\n     * @dev Division of two int256 variables and fails on overflow.\n     */\n    function div(int256 a, int256 b) internal pure returns (int256) {\n        // Prevent overflow when dividing MIN_INT256 by -1\n        require(b != -1 || a != MIN_INT256);\n\n        // Solidity already throws when dividing by 0.\n        return a / b;\n    }\n\n    /**\n     * @dev Subtracts two int256 variables and fails on overflow.\n     */\n    function sub(int256 a, int256 b) internal pure returns (int256) {\n        int256 c = a - b;\n        require((b >= 0 && c <= a) || (b < 0 && c > a));\n        return c;\n    }\n\n    /**\n     * @dev Adds two int256 variables and fails on overflow.\n     */\n    function add(int256 a, int256 b) internal pure returns (int256) {\n        int256 c = a + b;\n        require((b >= 0 && c >= a) || (b < 0 && c < a));\n        return c;\n    }\n\n    /**\n     * @dev Converts to absolute value, and fails on overflow.\n     */\n    function abs(int256 a) internal pure returns (int256) {\n        require(a != MIN_INT256);\n        return a < 0 ? -a : a;\n    }\n\n    function toUint256Safe(int256 a) internal pure returns (uint256) {\n        require(a >= 0);\n        return uint256(a);\n    }\n}\n\n/**\n * @title SafeMathUint\n * @dev Math operations with safety checks that revert on error\n */\nlibrary SafeMathUint {\n    function toInt256Safe(uint256 a) internal pure returns (int256) {\n        int256 b = int256(a);\n        require(b >= 0);\n        return b;\n    }\n}\n\nlibrary IterableMapping {\n    // Iterable mapping from address to uint;\n    struct Map {\n        address[] keys;\n        mapping(address => uint256) values;\n        mapping(address => uint256) indexOf;\n        mapping(address => bool) inserted;\n    }\n\n    function get(Map storage map, address key) public view returns (uint256) {\n        return map.values[key];\n    }\n\n    function getIndexOfKey(\n        Map storage map,\n        address key\n    ) public view returns (int256) {\n        if (!map.inserted[key]) {\n            return -1;\n        }\n        return int256(map.indexOf[key]);\n    }\n\n    function getKeyAtIndex(\n        Map storage map,\n        uint256 index\n    ) public view returns (address) {\n        return map.keys[index];\n    }\n\n    function size(Map storage map) public view returns (uint256) {\n        return map.keys.length;\n    }\n\n    function set(Map storage map, address key, uint256 val) public {\n        if (map.inserted[key]) {\n            map.values[key] = val;\n        } else {\n            map.inserted[key] = true;\n            map.values[key] = val;\n            map.indexOf[key] = map.keys.length;\n            map.keys.push(key);\n        }\n    }\n\n    function remove(Map storage map, address key) public {\n        if (!map.inserted[key]) {\n            return;\n        }\n\n        delete map.inserted[key];\n        delete map.values[key];\n\n        uint256 index = map.indexOf[key];\n        uint256 lastIndex = map.keys.length - 1;\n        address lastKey = map.keys[lastIndex];\n\n        map.indexOf[lastKey] = index;\n        delete map.indexOf[key];\n\n        map.keys[index] = lastKey;\n        map.keys.pop();\n    }\n}\n\n/// @title Dividend-Paying Token Interface\n/// @author Roger Wu (https://github.com/roger-wu)\n/// @dev An interface for a dividend-paying token contract.\ninterface DividendPayingTokenInterface {\n    /// @notice View the amount of dividend in wei that an address can withdraw.\n    /// @param _owner The address of a token holder.\n    /// @return The amount of dividend in wei that `_owner` can withdraw.\n    function dividendOf(address _owner) external view returns (uint256);\n\n    /// @notice Withdraws the ether distributed to the sender.\n    /// @dev SHOULD transfer `dividendOf(msg.sender)` wei to `msg.sender`, and `dividendOf(msg.sender)` SHOULD be 0 after the transfer.\n    ///  MUST emit a `DividendWithdrawn` event if the amount of ether transferred is greater than 0.\n    function withdrawDividend() external;\n\n    /// @dev This event MUST emit when ether is distributed to token holders.\n    /// @param from The address which sends ether to this contract.\n    /// @param weiAmount The amount of distributed ether in wei.\n    event DividendsDistributed(address indexed from, uint256 weiAmount);\n\n    /// @dev This event MUST emit when an address withdraws their dividend.\n    /// @param to The address which withdraws ether from this contract.\n    /// @param weiAmount The amount of withdrawn ether in wei.\n    event DividendWithdrawn(address indexed to, uint256 weiAmount);\n}\n\n/// @title Dividend-Paying Token Optional Interface\n/// @author Roger Wu (https://github.com/roger-wu)\n/// @dev OPTIONAL functions for a dividend-paying token contract.\ninterface DividendPayingTokenOptionalInterface {\n    /// @notice View the amount of dividend in wei that an address can withdraw.\n    /// @param _owner The address of a token holder.\n    /// @return The amount of dividend in wei that `_owner` can withdraw.\n    function withdrawableDividendOf(\n        address _owner\n    ) external view returns (uint256);\n\n    /// @notice View the amount of dividend in wei that an address has withdrawn.\n    /// @param _owner The address of a token holder.\n    /// @return The amount of dividend in wei that `_owner` has withdrawn.\n    function withdrawnDividendOf(\n        address _owner\n    ) external view returns (uint256);\n\n    /// @notice View the amount of dividend in wei that an address has earned in total.\n    /// @dev accumulativeDividendOf(_owner) = withdrawableDividendOf(_owner) + withdrawnDividendOf(_owner)\n    /// @param _owner The address of a token holder.\n    /// @return The amount of dividend in wei that `_owner` has earned in total.\n    function accumulativeDividendOf(\n        address _owner\n    ) external view returns (uint256);\n}\n\n/// @title Dividend-Paying Token\n/// @author Roger Wu (https://github.com/roger-wu)\n/// @dev A mintable ERC20 token that allows anyone to pay and distribute ether\n///  to token holders as dividends and allows token holders to withdraw their dividends.\n///  Reference: the source code of PoWH3D: https://etherscan.io/address/0xB3775fB83F7D12A36E0475aBdD1FCA35c091efBe#code\ncontract DividendPayingToken is\n    ERC20Upgradeable,\n    OwnableUpgradeable,\n    DividendPayingTokenInterface,\n    DividendPayingTokenOptionalInterface\n{\n    using SafeMathUint for uint256;\n    using SafeMathInt for int256;\n\n    address public rewardToken;\n\n    // With `MAGNITUDE`, we can properly distribute dividends even if the amount of received ether is small.\n    // For more discussion about choosing the value of `MAGNITUDE`,\n    //  see https://github.com/ethereum/EIPs/issues/1726#issuecomment-472352728\n    uint256 internal constant MAGNITUDE = 2 ** 128;\n\n    uint256 internal magnifiedDividendPerShare;\n\n    // About dividendCorrection:\n    // If the token balance of a `_user` is never changed, the dividend of `_user` can be computed with:\n    //   `dividendOf(_user) = dividendPerShare * balanceOf(_user)`.\n    // When `balanceOf(_user)` is changed (via minting/burning/transferring tokens),\n    //   `dividendOf(_user)` should not be changed,\n    //   but the computed value of `dividendPerShare * balanceOf(_user)` is changed.\n    // To keep the `dividendOf(_user)` unchanged, we add a correction term:\n    //   `dividendOf(_user) = dividendPerShare * balanceOf(_user) + dividendCorrectionOf(_user)`,\n    //   where `dividendCorrectionOf(_user)` is updated whenever `balanceOf(_user)` is changed:\n    //   `dividendCorrectionOf(_user) = dividendPerShare * (old balanceOf(_user)) - (new balanceOf(_user))`.\n    // So now `dividendOf(_user)` returns the same value before and after `balanceOf(_user)` is changed.\n    mapping(address => int256) internal magnifiedDividendCorrections;\n    mapping(address => uint256) internal withdrawnDividends;\n\n    uint256 public totalDividendsDistributed;\n\n    // solhint-disable-next-line func-name-mixedcase\n    function __DividendPayingToken_init(\n        address _rewardToken,\n        string memory _name,\n        string memory _symbol\n    ) internal onlyInitializing {\n        __Ownable_init();\n        __ERC20_init(_name, _symbol);\n        rewardToken = _rewardToken;\n    }\n\n    function distributeCAKEDividends(uint256 amount) public onlyOwner {\n        require(totalSupply() > 0);\n\n        if (amount > 0) {\n            magnifiedDividendPerShare =\n                magnifiedDividendPerShare +\n                ((amount * MAGNITUDE) / totalSupply());\n            emit DividendsDistributed(msg.sender, amount);\n\n            totalDividendsDistributed = totalDividendsDistributed + amount;\n        }\n    }\n\n    /// @notice Withdraws the ether distributed to the sender.\n    /// @dev It emits a `DividendWithdrawn` event if the amount of withdrawn ether is greater than 0.\n    function withdrawDividend() public virtual override {\n        _withdrawDividendOfUser(payable(msg.sender));\n    }\n\n    /// @notice Withdraws the ether distributed to the sender.\n    /// @dev It emits a `DividendWithdrawn` event if the amount of withdrawn ether is greater than 0.\n    function _withdrawDividendOfUser(\n        address payable user\n    ) internal returns (uint256) {\n        uint256 _withdrawableDividend = withdrawableDividendOf(user);\n        if (_withdrawableDividend > 0) {\n            withdrawnDividends[user] =\n                withdrawnDividends[user] +\n                _withdrawableDividend;\n            emit DividendWithdrawn(user, _withdrawableDividend);\n\n            bool success = SafeERC20NoRevert.safeTransfer(\n                IERC20(rewardToken),\n                user,\n                _withdrawableDividend\n            );\n\n            if (!success) {\n                withdrawnDividends[user] =\n                    withdrawnDividends[user] -\n                    _withdrawableDividend;\n                return 0;\n            }\n            return _withdrawableDividend;\n        }\n\n        return 0;\n    }\n\n    /// @notice View the amount of dividend in wei that an address can withdraw.\n    /// @param _owner The address of a token holder.\n    /// @return The amount of dividend in wei that `_owner` can withdraw.\n    function dividendOf(address _owner) public view override returns (uint256) {\n        return withdrawableDividendOf(_owner);\n    }\n\n    /// @notice View the amount of dividend in wei that an address can withdraw.\n    /// @param _owner The address of a token holder.\n    /// @return The amount of dividend in wei that `_owner` can withdraw.\n    function withdrawableDividendOf(\n        address _owner\n    ) public view override returns (uint256) {\n        return accumulativeDividendOf(_owner) - withdrawnDividends[_owner];\n    }\n\n    /// @notice View the amount of dividend in wei that an address has withdrawn.\n    /// @param _owner The address of a token holder.\n    /// @return The amount of dividend in wei that `_owner` has withdrawn.\n    function withdrawnDividendOf(\n        address _owner\n    ) public view override returns (uint256) {\n        return withdrawnDividends[_owner];\n    }\n\n    /// @notice View the amount of dividend in wei that an address has earned in total.\n    /// @dev accumulativeDividendOf(_owner) = withdrawableDividendOf(_owner) + withdrawnDividendOf(_owner)\n    /// = (magnifiedDividendPerShare * balanceOf(_owner) + magnifiedDividendCorrections[_owner]) / MAGNITUDE\n    /// @param _owner The address of a token holder.\n    /// @return The amount of dividend in wei that `_owner` has earned in total.\n    function accumulativeDividendOf(\n        address _owner\n    ) public view override returns (uint256) {\n        return\n            (magnifiedDividendPerShare * balanceOf(_owner))\n                .toInt256Safe()\n                .add(magnifiedDividendCorrections[_owner])\n                .toUint256Safe() / MAGNITUDE;\n    }\n\n    /// @dev Internal function that transfer tokens from one address to another.\n    /// Update magnifiedDividendCorrections to keep dividends unchanged.\n    /// @param from The address to transfer from.\n    /// @param to The address to transfer to.\n    /// @param value The amount to be transferred.\n    function _transfer(\n        address from,\n        address to,\n        uint256 value\n    ) internal virtual override {\n        require(false);\n\n        int256 _magCorrection = (magnifiedDividendPerShare * value)\n            .toInt256Safe();\n        magnifiedDividendCorrections[from] = magnifiedDividendCorrections[from]\n            .add(_magCorrection);\n        magnifiedDividendCorrections[to] = magnifiedDividendCorrections[to].sub(\n            _magCorrection\n        );\n    }\n\n    /// @dev Internal function that mints tokens to an account.\n    /// Update magnifiedDividendCorrections to keep dividends unchanged.\n    /// @param account The account that will receive the created tokens.\n    /// @param value The amount that will be created.\n    function _mint(address account, uint256 value) internal override {\n        super._mint(account, value);\n\n        magnifiedDividendCorrections[account] = magnifiedDividendCorrections[\n            account\n        ].sub((magnifiedDividendPerShare * value).toInt256Safe());\n    }\n\n    /// @dev Internal function that burns an amount of the token of a given account.\n    /// Update magnifiedDividendCorrections to keep dividends unchanged.\n    /// @param account The account whose tokens will be burnt.\n    /// @param value The amount that will be burnt.\n    function _burn(address account, uint256 value) internal override {\n        super._burn(account, value);\n\n        magnifiedDividendCorrections[account] = magnifiedDividendCorrections[\n            account\n        ].add((magnifiedDividendPerShare * value).toInt256Safe());\n    }\n\n    function _setBalance(address account, uint256 newBalance) internal {\n        uint256 currentBalance = balanceOf(account);\n\n        if (newBalance > currentBalance) {\n            uint256 mintAmount = newBalance - currentBalance;\n            _mint(account, mintAmount);\n        } else if (newBalance < currentBalance) {\n            uint256 burnAmount = currentBalance - newBalance;\n            _burn(account, burnAmount);\n        }\n    }\n}\n\ncontract BabyTokenDividendTracker is OwnableUpgradeable, DividendPayingToken {\n    using SafeMathInt for int256;\n    using IterableMapping for IterableMapping.Map;\n\n    IterableMapping.Map private tokenHoldersMap;\n    uint256 public lastProcessedIndex;\n\n    mapping(address => bool) public excludedFromDividends;\n\n    mapping(address => uint256) public lastClaimTimes;\n\n    uint256 public claimWait;\n    uint256 public minimumTokenBalanceForDividends;\n\n    event ExcludeFromDividends(address indexed account);\n    event ClaimWaitUpdated(uint256 indexed newValue, uint256 indexed oldValue);\n\n    event Claim(\n        address indexed account,\n        uint256 amount,\n        bool indexed automatic\n    );\n\n    /// @custom:oz-upgrades-unsafe-allow constructor\n    constructor() {\n        _disableInitializers();\n    }\n\n    function initialize(\n        address rewardToken_,\n        uint256 minimumTokenBalanceForDividends_\n    ) external initializer {\n        DividendPayingToken.__DividendPayingToken_init(\n            rewardToken_,\n            \"DIVIDEND_TRACKER\",\n            \"DIVIDEND_TRACKER\"\n        );\n        claimWait = 3600;\n        minimumTokenBalanceForDividends = minimumTokenBalanceForDividends_;\n    }\n\n    function _transfer(address, address, uint256) internal pure override {\n        require(false, \"Dividend_Tracker: No transfers allowed\");\n    }\n\n    function withdrawDividend() public pure override {\n        require(\n            false,\n            \"Dividend_Tracker: withdrawDividend disabled. Use the 'claim' function on the main BabyToken contract.\"\n        );\n    }\n\n    function excludeFromDividends(address account) external onlyOwner {\n        require(!excludedFromDividends[account]);\n        excludedFromDividends[account] = true;\n\n        _setBalance(account, 0);\n        tokenHoldersMap.remove(account);\n\n        emit ExcludeFromDividends(account);\n    }\n\n    function isExcludedFromDividends(\n        address account\n    ) public view returns (bool) {\n        return excludedFromDividends[account];\n    }\n\n    function updateClaimWait(uint256 newClaimWait) external onlyOwner {\n        require(\n            newClaimWait >= 3600 && newClaimWait <= 86400,\n            \"Dividend_Tracker: claimWait must be updated to between 1 and 24 hours\"\n        );\n        require(\n            newClaimWait != claimWait,\n            \"Dividend_Tracker: Cannot update claimWait to same value\"\n        );\n        emit ClaimWaitUpdated(newClaimWait, claimWait);\n        claimWait = newClaimWait;\n    }\n\n    function updateMinimumTokenBalanceForDividends(\n        uint256 amount\n    ) external onlyOwner {\n        minimumTokenBalanceForDividends = amount;\n    }\n\n    function getLastProcessedIndex() external view returns (uint256) {\n        return lastProcessedIndex;\n    }\n\n    function getNumberOfTokenHolders() external view returns (uint256) {\n        return tokenHoldersMap.keys.length;\n    }\n\n    function getAccount(\n        address _account\n    )\n        public\n        view\n        returns (\n            address account,\n            int256 index,\n            int256 iterationsUntilProcessed,\n            uint256 withdrawableDividends,\n            uint256 totalDividends,\n            uint256 lastClaimTime,\n            uint256 nextClaimTime,\n            uint256 secondsUntilAutoClaimAvailable\n        )\n    {\n        account = _account;\n\n        index = tokenHoldersMap.getIndexOfKey(account);\n\n        iterationsUntilProcessed = -1;\n\n        if (index >= 0) {\n            if (uint256(index) > lastProcessedIndex) {\n                iterationsUntilProcessed = index.sub(\n                    int256(lastProcessedIndex)\n                );\n            } else {\n                uint256 processesUntilEndOfArray = tokenHoldersMap.keys.length >\n                    lastProcessedIndex\n                    ? tokenHoldersMap.keys.length - lastProcessedIndex\n                    : 0;\n\n                iterationsUntilProcessed = index.add(\n                    int256(processesUntilEndOfArray)\n                );\n            }\n        }\n\n        withdrawableDividends = withdrawableDividendOf(account);\n        totalDividends = accumulativeDividendOf(account);\n\n        lastClaimTime = lastClaimTimes[account];\n\n        nextClaimTime = lastClaimTime > 0 ? lastClaimTime + claimWait : 0;\n\n        secondsUntilAutoClaimAvailable = nextClaimTime > block.timestamp\n            ? nextClaimTime - block.timestamp\n            : 0;\n    }\n\n    function getAccountAtIndex(\n        uint256 index\n    )\n        public\n        view\n        returns (\n            address,\n            int256,\n            int256,\n            uint256,\n            uint256,\n            uint256,\n            uint256,\n            uint256\n        )\n    {\n        if (index >= tokenHoldersMap.size()) {\n            return (address(0), -1, -1, 0, 0, 0, 0, 0);\n        }\n\n        address account = tokenHoldersMap.getKeyAtIndex(index);\n\n        return getAccount(account);\n    }\n\n    function canAutoClaim(uint256 lastClaimTime) private view returns (bool) {\n        if (lastClaimTime > block.timestamp) {\n            return false;\n        }\n\n        return block.timestamp - lastClaimTime >= claimWait;\n    }\n\n    function setBalance(\n        address payable account,\n        uint256 newBalance\n    ) external onlyOwner {\n        if (excludedFromDividends[account]) {\n            return;\n        }\n        if (newBalance >= minimumTokenBalanceForDividends) {\n            _setBalance(account, newBalance);\n            tokenHoldersMap.set(account, newBalance);\n        } else {\n            _setBalance(account, 0);\n            tokenHoldersMap.remove(account);\n        }\n        processAccount(account, true);\n    }\n\n    function process(uint256 gas) public returns (uint256, uint256, uint256) {\n        uint256 numberOfTokenHolders = tokenHoldersMap.keys.length;\n\n        if (numberOfTokenHolders == 0) {\n            return (0, 0, lastProcessedIndex);\n        }\n\n        uint256 _lastProcessedIndex = lastProcessedIndex;\n\n        uint256 gasUsed = 0;\n\n        uint256 gasLeft = gasleft();\n\n        uint256 iterations = 0;\n        uint256 claims = 0;\n\n        while (gasUsed < gas && iterations < numberOfTokenHolders) {\n            _lastProcessedIndex++;\n\n            if (_lastProcessedIndex >= tokenHoldersMap.keys.length) {\n                _lastProcessedIndex = 0;\n            }\n\n            address account = tokenHoldersMap.keys[_lastProcessedIndex];\n\n            if (canAutoClaim(lastClaimTimes[account])) {\n                if (processAccount(payable(account), true)) {\n                    claims++;\n                }\n            }\n\n            iterations++;\n\n            uint256 newGasLeft = gasleft();\n\n            if (gasLeft > newGasLeft) {\n                gasUsed = gasUsed + (gasLeft - newGasLeft);\n            }\n\n            gasLeft = newGasLeft;\n        }\n\n        lastProcessedIndex = _lastProcessedIndex;\n\n        return (iterations, claims, lastProcessedIndex);\n    }\n\n    function processAccount(\n        address payable account,\n        bool automatic\n    ) public onlyOwner returns (bool) {\n        uint256 amount = _withdrawDividendOfUser(account);\n\n        if (amount > 0) {\n            lastClaimTimes[account] = block.timestamp;\n            emit Claim(account, amount, automatic);\n            return true;\n        }\n\n        return false;\n    }\n}\n"
      }
    }
  }}