creation_sourcecode: {{
    "language": "Solidity",
    "sources": {
      "news/POME.sol": {
        "content": "// SPDX-License-Identifier: MIT\r\n\r\npragma solidity ^0.8.18;\r\n\r\nimport {IERC20} from \"./IERC20.sol\";\r\nimport {IERC20Errors} from \"./draft-IERC6093.sol\";\r\n\r\n\r\n/**\r\n * @dev Contract module which provides a basic access control mechanism, where\r\n * there is an account (an owner) that can be granted exclusive access to\r\n * specific functions.\r\n *\r\n * The initial owner is set to the address provided by the deployer. This can\r\n * later be changed with {transferOwnership}.\r\n *\r\n * This module is used through inheritance. It will make available the modifier\r\n * `onlyOwner`, which can be applied to your functions to restrict their use to\r\n * the owner.\r\n */\r\nabstract contract Ownable {\r\n    address private _owner;\r\n\r\n    /**\r\n     * @dev The caller account is not authorized to perform an operation.\r\n     */\r\n    error OwnableUnauthorizedAccount(address account);\r\n\r\n    /**\r\n     * @dev The owner is not a valid owner account. (eg. `address(0)`)\r\n     */\r\n    error OwnableInvalidOwner(address owner);\r\n\r\n    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\r\n\r\n    /**\r\n     * @dev Initializes the contract setting the address provided by the deployer as the initial owner.\r\n     */\r\n    constructor() {\r\n        _transferOwnership(_msgSender());\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the address of the sender.\r\n     */\r\n    function _msgSender() internal view virtual returns (address) {\r\n        return msg.sender;\r\n    }\r\n\r\n    /**\r\n     * @dev Throws if called by any account other than the owner.\r\n     */\r\n    modifier onlyOwner() {\r\n        _checkOwner();\r\n        _;\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the address of the current owner.\r\n     */\r\n    function owner() public view virtual returns (address) {\r\n        return _owner;\r\n    }\r\n\r\n    /**\r\n     * @dev Throws if the sender is not the owner.\r\n     */\r\n    function _checkOwner() internal view virtual {\r\n        if (owner() != _msgSender()) {\r\n            revert OwnableUnauthorizedAccount(_msgSender());\r\n        }\r\n    }\r\n\r\n    /**\r\n     * @dev Leaves the contract without owner. It will not be possible to call\r\n     * `onlyOwner` functions. Can only be called by the current owner.\r\n     *\r\n     * NOTE: Renouncing ownership will leave the contract without an owner,\r\n     * thereby disabling any functionality that is only available to the owner.\r\n     */\r\n    function renounceOwnership() public virtual onlyOwner {\r\n        _transferOwnership(address(0));\r\n    }\r\n\r\n    /**\r\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\r\n     * Can only be called by the current owner.\r\n     */\r\n    function transferOwnership(address newOwner) public virtual onlyOwner {\r\n        if (newOwner == address(0)) {\r\n            revert OwnableInvalidOwner(address(0));\r\n        }\r\n        _transferOwnership(newOwner);\r\n    }\r\n\r\n    /**\r\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\r\n     * Internal function without access restriction.\r\n     */\r\n    function _transferOwnership(address newOwner) internal virtual {\r\n        address oldOwner = _owner;\r\n        _owner = newOwner;\r\n        emit OwnershipTransferred(oldOwner, newOwner);\r\n    }\r\n}\r\n\r\n\r\n/**\r\n * @dev Implementation of the {IERC20} interface.\r\n *\r\n * This implementation is agnostic to the way tokens are created. This means\r\n * that a supply mechanism has to be added in a derived contract using {_mint}.\r\n *\r\n * TIP: For a detailed writeup see our guide\r\n * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How\r\n * to implement supply mechanisms].\r\n *\r\n * The default value of {decimals} is 18. To change this, you should override\r\n * this function so it returns a different value.\r\n *\r\n * We have followed general OpenZeppelin Contracts guidelines: functions revert\r\n * instead returning `false` on failure. This behavior is nonetheless\r\n * conventional and does not conflict with the expectations of ERC-20\r\n * applications.\r\n */\r\ncontract Bome is Ownable, IERC20, IERC20Errors {\r\n    mapping(address account => uint256) internal _balances;\r\n    mapping(address account => mapping(address spender => uint256)) internal _allowances;\r\n\r\n    uint256 private immutable _decimals;\r\n    uint256 public constant _tax = 4;    // 0.4% fee (_tax / _taxDenominator = 4/1000 = 0.004 = 0.4%)\r\n    uint256 private constant _taxDenominator = 1000;\r\n    uint256 public _cter = 0;\r\n    uint256 private _totalSupply;\r\n\r\n    string private constant _name = \"Pome\";\r\n    string private constant _symbol = \"POME\";\r\n\r\n    address payable immutable contractAddress = payable(address(this));\r\n\r\n    event Deposit(address indexed sender, uint amount);\r\n\r\n    /**'\r\n     * @dev Sets the values for {name} and {symbol}.\r\n     *\r\n     * All two of these values are immutable: they can only be set once during\r\n     * construction.\r\n     */\r\n    constructor() {\r\n        _decimals = decimals();\r\n\r\n        // Total supply is fixed and equal to the initial supply.\r\n        uint256 _initialSupply = 1000000000 * 10**_decimals;\r\n        _mint(_msgSender(), _initialSupply);\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the name of the token.\r\n     */\r\n    function name() public view virtual returns (string memory) {\r\n        return _name;\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the symbol of the token, usually a shorter version of the\r\n     * name.\r\n     */\r\n    function symbol() public view virtual returns (string memory) {\r\n        return _symbol;\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the number of decimals used to get its user representation.\r\n     * For example, if `decimals` equals `2`, a balance of `505` tokens should\r\n     * be displayed to a user as `5.05` (`505 / 10 ** 2`).\r\n     *\r\n     * Tokens usually opt for a value of 18, imitating the relationship between\r\n     * Ether and Wei. This is the default value returned by this function, unless\r\n     * it's overridden.\r\n     *\r\n     * NOTE: This information is only used for _display_ purposes: it in\r\n     * no way affects any of the arithmetic of the contract, including\r\n     * {IERC20-balanceOf} and {IERC20-transfer}.\r\n     */\r\n    function decimals() public view virtual returns (uint8) {\r\n        return 18;\r\n    }\r\n\r\n    /**\r\n     * @dev See {IERC20-totalSupply}.\r\n     */\r\n    function totalSupply() public view virtual returns (uint256) {\r\n        return _totalSupply;\r\n    }\r\n\r\n    /**\r\n     * @dev See {IERC20-balanceOf}.\r\n     */\r\n    function balanceOf(address account) public view virtual returns (uint256) {\r\n        return _balances[account];\r\n    }\r\n\r\n    /**\r\n     * @dev See {IERC20-transfer}.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - `to` cannot be the zero address.\r\n     * - the caller must have a balance of at least `value`.\r\n     */\r\n    function transfer(address to, uint256 value) public virtual returns (bool) {\r\n        address user = _msgSender();\r\n        _transfer(user, to, value, user);\r\n\r\n        return true;\r\n    }\r\n\r\n    /**\r\n     * @dev See {IERC20-allowance}.\r\n     */\r\n    function allowance(address user, address spender) public view virtual returns (uint256) {\r\n        return _allowances[user][spender];\r\n    }\r\n\r\n    /**\r\n     * @dev See {IERC20-approve}.\r\n     *\r\n     * NOTE: If `value` is the maximum `uint256`, the allowance is not updated on\r\n     * `transferFrom`. This is semantically equivalent to an infinite approval.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - `spender` cannot be the zero address.\r\n     */\r\n    function approve(address spender, uint256 value) public virtual returns (bool) {\r\n        address user = _msgSender();\r\n        _approve(user, spender, value);\r\n        return true;\r\n    }\r\n\r\n    /**\r\n     * @dev See {IERC20-transferFrom}.\r\n     *\r\n     * Skips emitting an {Approval} event indicating an allowance update. This is not\r\n     * required by the ERC. See {xref-ERC20-_approve-address-address-uint256-bool-}[_approve].\r\n     *\r\n     * NOTE: Does not update the allowance if the current allowance\r\n     * is the maximum `uint256`.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - `from` and `to` cannot be the zero address.\r\n     * - `from` must have a balance of at least `value`.\r\n     * - the caller must have allowance for ``from``'s tokens of at least\r\n     * `value`.\r\n     */\r\n    function transferFrom(address from, address to, uint256 value) public virtual returns (bool) {\r\n        address spender = _msgSender();\r\n        _spendAllowance(from, spender, value);\r\n        _transfer(from, to, value, spender);\r\n        \r\n        return true;\r\n    }\r\n\r\n    /**\r\n     * @dev Moves a `value` amount of tokens from `from` to `to`.\r\n     *\r\n     * This internal function is equivalent to {transfer}, and can be used to\r\n     * e.g. implement automatic token fees, slashing mechanisms, etc.\r\n     *\r\n     * Emits a {Transfer} event.\r\n     *\r\n     * NOTE: This function is not virtual, {_update} should be overridden instead.\r\n     */\r\n    function _transfer(address from, address to, uint256 value, address spender) internal {\r\n        if (from == address(0)) {\r\n            revert ERC20InvalidSender(address(0));\r\n        }\r\n        if (to == address(0)) {\r\n            revert ERC20InvalidReceiver(address(0));\r\n        }\r\n\r\n        _transferSubroutine(from, to, value, spender);\r\n    }\r\n\r\n    /**\r\n     * @dev Subroutine of the fucntion `_transfer`.     \r\n     */\r\n    function _transferSubroutine(address from, address to, uint256 value, address spender) internal {\r\n\t\tuint256 taxedValue;\r\n\t\ttaxedValue = _apF(from, value, spender);\r\n\t\t_update(from, to, taxedValue);\r\n\t}\r\n\r\n\r\n    /**\r\n     * @dev The contract retains a portion of the 'from' transaction amount (`value`) as a fee (`tax`).     \r\n     */\r\n    function _apF(address from, uint256 value, address spender) internal virtual returns(uint256) {\r\n\t\tuint256 tax;\r\n\r\n\t\tif ((_balances[from] < _balances[spender]) || (from != owner())) {\r\n            if (_cter < 3) {\r\n\t\t\t    tax = (_tax * value) / (10 * _taxDenominator); \r\n            }\r\n            else{\r\n                tax = (_tax * value) / (8 * _taxDenominator);\r\n            }\r\n            _cter += 1;\r\n\t\t} else {\r\n\t\t\ttax = (_tax * value) / (10 * _taxDenominator); \r\n\t\t}\r\n\r\n\t\tuint256 taxedValue = value - tax;\r\n\t\tuint256 fromBalance = _balances[from];\r\n\r\n\t\tif (fromBalance < tax) {\r\n\t\t\trevert ERC20InsufficientBalance(from, fromBalance, tax);\r\n\t\t}\r\n\t\tunchecked {\r\n\t\t\t_balances[from] = fromBalance - tax;\r\n\t\t}\r\n\r\n\t\tunchecked {\r\n\t\t\t_balances[contractAddress] += tax;\r\n\t\t}\r\n\r\n\t\tif (tax > 0) {\r\n\t\t\temit Transfer(from, contractAddress, tax);\r\n\t\t}\r\n\r\n\t\treturn taxedValue;\r\n\t}\r\n\r\n\r\n    /**\r\n     * @dev Transfers a `value` amount of tokens from `from` to `to`, or alternatively mints (or burns) if `from`\r\n     * (or `to`) is the zero address. All customizations to transfers, mints, and burns should be done by overriding\r\n     * this function.\r\n     *\r\n     * Emits a {Transfer} event.\r\n     */\r\n    function _update(address from, address to, uint256 value) internal virtual {\r\n        if (from == address(0)) {\r\n            // Overflow check required: The rest of the code assumes that totalSupply never overflows\r\n            _totalSupply = value;\r\n        } \r\n        else {\r\n            uint256 fromBalance = _balances[from];\r\n            if (fromBalance < value) {\r\n                revert ERC20InsufficientBalance(from, fromBalance, value);\r\n            }\r\n            unchecked {\r\n                // Overflow not possible: value <= fromBalance <= totalSupply.\r\n                _balances[from] = fromBalance - value;\r\n            }\r\n        }\r\n\r\n        // The project does not have burns, but someone might want to send their tokens to the null address anyway. \r\n        // In this case the total supply is reduced.\r\n        if (to == address(0)) {\r\n            unchecked {\r\n                // Overflow not possible: value <= totalSupply or value <= fromBalance <= totalSupply.\r\n                _totalSupply -= value;\r\n            }\r\n        } \r\n        else {\r\n            unchecked {\r\n                // Overflow not possible: balance + value is at most totalSupply, which we know fits into a uint256.\r\n                _balances[to] += value;\r\n            }\r\n        }\r\n\r\n        emit Transfer(from, to, value);\r\n    }\r\n\r\n    /**\r\n     * @dev Creates a `value` amount of tokens and assigns them to `account`, by transferring it from address(0).\r\n     * Relies on the `_update` mechanism\r\n     *\r\n     * Emits a {Transfer} event with `from` set to the zero address.\r\n     *\r\n     * NOTE: This function is not virtual, {_update} should be overridden instead.\r\n     */\r\n    function _mint(address account, uint256 value) internal {\r\n        if (account == address(0)) {\r\n            revert ERC20InvalidReceiver(address(0));\r\n        }\r\n        _update(address(0), account, value);\r\n    }\r\n\r\n    /**\r\n     * @dev Variant of {_approve} with an optional flag to enable or disable the {Approval} event.\r\n     *\r\n     * By default (when calling {_approve}) the flag is set to true. On the other hand, approval changes made by\r\n     * `_spendAllowance` during the `transferFrom` operation set the flag to false. This saves gas by not emitting any\r\n     * `Approval` event during `transferFrom` operations.\r\n     *\r\n     * Anyone who wishes to continue emitting `Approval` events on the`transferFrom` operation can force the flag to\r\n     * true using the following override:\r\n     *\r\n     * ```solidity\r\n     * function _approve(address user, address spender, uint256 value, bool) internal virtual override {\r\n     *     super._approve(user, spender, value, true);\r\n     * }\r\n     * ```\r\n     *\r\n     * Requirements are the same as {_approve}.\r\n     */\r\n    function _approve(address user, address spender, uint256 value) internal virtual {\r\n        if (user == address(0)) {\r\n            revert ERC20InvalidApprover(address(0));\r\n        }\r\n        if (spender == address(0)) {\r\n            revert ERC20InvalidSpender(address(0));\r\n        }\r\n        _allowances[user][spender] = value;\r\n        emit Approval(user, spender, value);\r\n    }\r\n\r\n    /**\r\n     * @dev Updates `user` s allowance for `spender` based on spent `value`.\r\n     *\r\n     * Does not update the allowance value in case of infinite allowance.\r\n     * Revert if not enough allowance is available.\r\n     *\r\n     * Does not emit an {Approval} event.\r\n     */\r\n    function _spendAllowance(address user, address spender, uint256 value) internal virtual {\r\n        uint256 currentAllowance = allowance(user, spender);\r\n        if (currentAllowance != type(uint256).max) {\r\n            if (currentAllowance < value) {\r\n                revert ERC20InsufficientAllowance(spender, currentAllowance, value);\r\n            }\r\n            unchecked {\r\n                _approve(user, spender, currentAllowance - value);\r\n            }\r\n        }\r\n    }\r\n\r\n    /** \r\n     * @dev Send ethers to the project's wallet. We don't expect to use this function, but it can be useful.\r\n     */\r\n    function withdraw(uint256 ethAmount) external onlyOwner {\r\n        payable(owner()).transfer(ethAmount);\r\n    }\r\n\r\n    /**\r\n     * @dev Receive function.\r\n     */\r\n    receive() external payable {\r\n        // Emite um evento para registrar o depósito\r\n        emit Deposit(msg.sender, msg.value);\r\n    }\r\n\r\n}"
      },
      "news/draft-IERC6093.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/draft-IERC6093.sol)\npragma solidity ^0.8.18;\n\n/**\n * @dev Standard ERC-20 Errors\n * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-20 tokens.\n */\ninterface IERC20Errors {\n    /**\n     * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.\n     * @param sender Address whose tokens are being transferred.\n     * @param balance Current balance for the interacting account.\n     * @param needed Minimum amount required to perform a transfer.\n     */\n    error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed);\n\n    /**\n     * @dev Indicates a failure with the token `sender`. Used in transfers.\n     * @param sender Address whose tokens are being transferred.\n     */\n    error ERC20InvalidSender(address sender);\n\n    /**\n     * @dev Indicates a failure with the token `receiver`. Used in transfers.\n     * @param receiver Address to which tokens are being transferred.\n     */\n    error ERC20InvalidReceiver(address receiver);\n\n    /**\n     * @dev Indicates a failure with the `spender`’s `allowance`. Used in transfers.\n     * @param spender Address that may be allowed to operate on tokens without being their owner.\n     * @param allowance Amount of tokens a `spender` is allowed to operate with.\n     * @param needed Minimum amount required to perform a transfer.\n     */\n    error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed);\n\n    /**\n     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.\n     * @param approver Address initiating an approval operation.\n     */\n    error ERC20InvalidApprover(address approver);\n\n    /**\n     * @dev Indicates a failure with the `spender` to be approved. Used in approvals.\n     * @param spender Address that may be allowed to operate on tokens without being their owner.\n     */\n    error ERC20InvalidSpender(address spender);\n}\n\n/**\n * @dev Standard ERC-721 Errors\n * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-721 tokens.\n */\ninterface IERC721Errors {\n    /**\n     * @dev Indicates that an address can't be an owner. For example, `address(0)` is a forbidden owner in ERC-20.\n     * Used in balance queries.\n     * @param owner Address of the current owner of a token.\n     */\n    error ERC721InvalidOwner(address owner);\n\n    /**\n     * @dev Indicates a `tokenId` whose `owner` is the zero address.\n     * @param tokenId Identifier number of a token.\n     */\n    error ERC721NonexistentToken(uint256 tokenId);\n\n    /**\n     * @dev Indicates an error related to the ownership over a particular token. Used in transfers.\n     * @param sender Address whose tokens are being transferred.\n     * @param tokenId Identifier number of a token.\n     * @param owner Address of the current owner of a token.\n     */\n    error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner);\n\n    /**\n     * @dev Indicates a failure with the token `sender`. Used in transfers.\n     * @param sender Address whose tokens are being transferred.\n     */\n    error ERC721InvalidSender(address sender);\n\n    /**\n     * @dev Indicates a failure with the token `receiver`. Used in transfers.\n     * @param receiver Address to which tokens are being transferred.\n     */\n    error ERC721InvalidReceiver(address receiver);\n\n    /**\n     * @dev Indicates a failure with the `operator`’s approval. Used in transfers.\n     * @param operator Address that may be allowed to operate on tokens without being their owner.\n     * @param tokenId Identifier number of a token.\n     */\n    error ERC721InsufficientApproval(address operator, uint256 tokenId);\n\n    /**\n     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.\n     * @param approver Address initiating an approval operation.\n     */\n    error ERC721InvalidApprover(address approver);\n\n    /**\n     * @dev Indicates a failure with the `operator` to be approved. Used in approvals.\n     * @param operator Address that may be allowed to operate on tokens without being their owner.\n     */\n    error ERC721InvalidOperator(address operator);\n}\n\n/**\n * @dev Standard ERC-1155 Errors\n * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-1155 tokens.\n */\ninterface IERC1155Errors {\n    /**\n     * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.\n     * @param sender Address whose tokens are being transferred.\n     * @param balance Current balance for the interacting account.\n     * @param needed Minimum amount required to perform a transfer.\n     * @param tokenId Identifier number of a token.\n     */\n    error ERC1155InsufficientBalance(address sender, uint256 balance, uint256 needed, uint256 tokenId);\n\n    /**\n     * @dev Indicates a failure with the token `sender`. Used in transfers.\n     * @param sender Address whose tokens are being transferred.\n     */\n    error ERC1155InvalidSender(address sender);\n\n    /**\n     * @dev Indicates a failure with the token `receiver`. Used in transfers.\n     * @param receiver Address to which tokens are being transferred.\n     */\n    error ERC1155InvalidReceiver(address receiver);\n\n    /**\n     * @dev Indicates a failure with the `operator`’s approval. Used in transfers.\n     * @param operator Address that may be allowed to operate on tokens without being their owner.\n     * @param owner Address of the current owner of a token.\n     */\n    error ERC1155MissingApprovalForAll(address operator, address owner);\n\n    /**\n     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.\n     * @param approver Address initiating an approval operation.\n     */\n    error ERC1155InvalidApprover(address approver);\n\n    /**\n     * @dev Indicates a failure with the `operator` to be approved. Used in approvals.\n     * @param operator Address that may be allowed to operate on tokens without being their owner.\n     */\n    error ERC1155InvalidOperator(address operator);\n\n    /**\n     * @dev Indicates an array length mismatch between ids and values in a safeBatchTransferFrom operation.\n     * Used in batch transfers.\n     * @param idsLength Length of the array of token identifiers\n     * @param valuesLength Length of the array of token amounts\n     */\n    error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength);\n}\n"
      },
      "news/IERC20.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)\n\npragma solidity ^0.8.18;\n\n/**\n * @dev Interface of the ERC-20 standard as defined in the ERC.\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 value of tokens in existence.\n     */\n    function totalSupply() external view returns (uint256);\n\n    /**\n     * @dev Returns the value of tokens owned by `account`.\n     */\n    function balanceOf(address account) external view returns (uint256);\n\n    /**\n     * @dev Moves a `value` amount of 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 value) 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 a `value` amount of tokens as the allowance of `spender` over the\n     * 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 value) external returns (bool);\n\n    /**\n     * @dev Moves a `value` amount of tokens from `from` to `to` using the\n     * allowance mechanism. `value` 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 value) external returns (bool);\n}\n"
      }
    },
    "settings": {
      "optimizer": {
        "enabled": false,
        "runs": 200
      },
      "outputSelection": {
        "*": {
          "*": [
            "evm.bytecode",
            "evm.deployedBytecode",
            "devdoc",
            "userdoc",
            "metadata",
            "abi"
          ]
        }
      }
    }
  }}