Address

{{
  "language": "Solidity",
  "sources": {
    "BBUXToken.sol": {
      "content": "\r
\r
// SPDX-License-Identifier: MIT\r
\r
pragma solidity 0.8.30;\r
pragma experimental ABIEncoderV2;\r
\r
\r
/**\r
 * @dev Interface of the ERC20 standard as defined in the EIP.\r
 */\r
interface IERC20 {\r
    /**\r
     * @dev Emitted when `value` tokens are moved from one account (`from`) to\r
     * another (`to`).\r
     *\r
     * Note that `value` may be zero.\r
     */\r
    event Transfer(address indexed from, address indexed to, uint256 value);\r
\r
    /**\r
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by\r
     * a call to {approve}. `value` is the new allowance.\r
     */\r
    event Approval(address indexed owner, address indexed spender, uint256 value);\r
\r
    /**\r
     * @dev Returns the amount of tokens in existence.\r
     */\r
    function totalSupply() external view returns (uint256);\r
\r
    /**\r
     * @dev Returns the amount of tokens owned by `account`.\r
     */\r
    function balanceOf(address account) external view returns (uint256);\r
\r
    /**\r
     * @dev Moves `amount` tokens from the caller's account to `to`.\r
     *\r
     * Returns a boolean value indicating whether the operation succeeded.\r
     *\r
     * Emits a {Transfer} event.\r
     */\r
    function transfer(address to, uint256 amount) external returns (bool);\r
\r
    /**\r
     * @dev Returns the remaining number of tokens that `spender` will be\r
     * allowed to spend on behalf of `owner` through {transferFrom}. This is\r
     * zero by default.\r
     *\r
     * This value changes when {approve} or {transferFrom} are called.\r
     */\r
    function allowance(address owner, address spender) external view returns (uint256);\r
\r
    /**\r
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\r
     *\r
     * Returns a boolean value indicating whether the operation succeeded.\r
     *\r
     * IMPORTANT: Beware that changing an allowance with this method brings the risk\r
     * that someone may use both the old and the new allowance by unfortunate\r
     * transaction ordering. One possible solution to mitigate this race\r
     * condition is to first reduce the spender's allowance to 0 and set the\r
     * desired value afterwards:\r
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\r
     *\r
     * Emits an {Approval} event.\r
     */\r
    function approve(address spender, uint256 amount) external returns (bool);\r
\r
    /**\r
     * @dev Moves `amount` tokens from `from` to `to` using the\r
     * allowance mechanism. `amount` is then deducted from the caller's\r
     * allowance.\r
     *\r
     * Returns a boolean value indicating whether the operation succeeded.\r
     *\r
     * Emits a {Transfer} event.\r
     */\r
    function transferFrom(address from, address to, uint256 amount) external returns (bool);\r
}\r
\r
\r
/**\r
 * @dev Interface for the optional metadata functions from the ERC20 standard.\r
 *\r
 * _Available since v4.1._\r
 */\r
interface IERC20Metadata is IERC20 {\r
    /**\r
     * @dev Returns the name of the token.\r
     */\r
    function name() external view returns (string memory);\r
\r
    /**\r
     * @dev Returns the symbol of the token.\r
     */\r
    function symbol() external view returns (string memory);\r
\r
    /**\r
     * @dev Returns the decimals places of the token.\r
     */\r
    function decimals() external view returns (uint8);\r
}\r
\r
\r
/**\r
 * @dev Provides information about the current execution context, including the\r
 * sender of the transaction and its data. While these are generally available\r
 * via msg.sender and msg.data, they should not be accessed in such a direct\r
 * manner, since when dealing with meta-transactions the account sending and\r
 * paying for execution may not be the actual sender (as far as an application\r
 * is concerned).\r
 *\r
 * This contract is only required for intermediate, library-like contracts.\r
 */\r
abstract contract Context {\r
    function _msgSender() internal view virtual returns (address) {\r
        return msg.sender;\r
    }\r
\r
    function _msgData() internal view virtual returns (bytes calldata) {\r
        return msg.data;\r
    }\r
}\r
\r
\r
/**\r
 * @dev Contract module which provides a basic access control mechanism, where\r
 * there is an account (an owner) that can be granted exclusive access to\r
 * specific functions.\r
 *\r
 * By default, the owner account will be the one that deploys the contract. This\r
 * can later be changed with {transferOwnership}.\r
 *\r
 * This module is used through inheritance. It will make available the modifier\r
 * `onlyOwner`, which can be applied to your functions to restrict their use to\r
 * the owner.\r
 */\r
abstract contract Ownable is Context {\r
    address private _owner;\r
\r
    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\r
\r
    /**\r
     * @dev Initializes the contract setting the deployer as the initial owner.\r
     */\r
    constructor() {\r
        _transferOwnership(_msgSender());\r
    }\r
\r
    /**\r
     * @dev Throws if called by any account other than the owner.\r
     */\r
    modifier onlyOwner() {\r
        _checkOwner();\r
        _;\r
    }\r
\r
    /**\r
     * @dev Returns the address of the current owner.\r
     */\r
    function owner() public view virtual returns (address) {\r
        return _owner;\r
    }\r
\r
    /**\r
     * @dev Throws if the sender is not the owner.\r
     */\r
    function _checkOwner() internal view virtual {\r
        require(owner() == _msgSender(), "Ownable: caller is not the owner");\r
    }\r
\r
    /**\r
     * @dev Leaves the contract without owner. It will not be possible to call\r
     * `onlyOwner` functions. Can only be called by the current owner.\r
     *\r
     * NOTE: Renouncing ownership will leave the contract without an owner,\r
     * thereby disabling any functionality that is only available to the owner.\r
     */\r
    function renounceOwnership() public virtual onlyOwner {\r
        _transferOwnership(address(0));\r
    }\r
\r
    /**\r
     * @dev Transfers ownership of the contract to a new account (`newOwner`).\r
     * Can only be called by the current owner.\r
     */\r
    function transferOwnership(address newOwner) public virtual onlyOwner {\r
        require(newOwner != address(0), "Ownable: new owner is the zero address");\r
        _transferOwnership(newOwner);\r
    }\r
\r
    /**\r
     * @dev Transfers ownership of the contract to a new account (`newOwner`).\r
     * Internal function without access restriction.\r
     */\r
    function _transferOwnership(address newOwner) internal virtual {\r
        address oldOwner = _owner;\r
        _owner = newOwner;\r
        emit OwnershipTransferred(oldOwner, newOwner);\r
    }\r
}\r
\r
\r
/**\r
 * @dev Collection of functions related to the address type\r
 */\r
library Address {\r
    /**\r
     * @dev Returns true if `account` is a contract.\r
     *\r
     * [IMPORTANT]\r
     * ====\r
     * It is unsafe to assume that an address for which this function returns\r
     * false is an externally-owned account (EOA) and not a contract.\r
     *\r
     * Among others, `isContract` will return false for the following\r
     * types of addresses:\r
     *\r
     *  - an externally-owned account\r
     *  - a contract in construction\r
     *  - an address where a contract will be created\r
     *  - an address where a contract lived, but was destroyed\r
     *\r
     * Furthermore, `isContract` will also return true if the target contract within\r
     * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,\r
     * which only has an effect at the end of a transaction.\r
     * ====\r
     *\r
     * [IMPORTANT]\r
     * ====\r
     * You shouldn't rely on `isContract` to protect against flash loan attacks!\r
     *\r
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\r
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\r
     * constructor.\r
     * ====\r
     */\r
    function isContract(address account) internal view returns (bool) {\r
        // This method relies on extcodesize/address.code.length, which returns 0\r
        // for contracts in construction, since the code is only stored at the end\r
        // of the constructor execution.\r
\r
        return account.code.length > 0;\r
    }\r
\r
    /**\r
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\r
     * `recipient`, forwarding all available gas and reverting on errors.\r
     *\r
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\r
     * of certain opcodes, possibly making contracts go over the 2300 gas limit\r
     * imposed by `transfer`, making them unable to receive funds via\r
     * `transfer`. {sendValue} removes this limitation.\r
     *\r
     * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].\r
     *\r
     * IMPORTANT: because control is transferred to `recipient`, care must be\r
     * taken to not create reentrancy vulnerabilities. Consider using\r
     * {ReentrancyGuard} or the\r
     * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\r
     */\r
    function sendValue(address payable recipient, uint256 amount) internal {\r
        require(address(this).balance >= amount, "Address: insufficient balance");\r
\r
        (bool success, ) = recipient.call{value: amount}("");\r
        require(success, "Address: unable to send value, recipient may have reverted");\r
    }\r
\r
    /**\r
     * @dev Performs a Solidity function call using a low level `call`. A\r
     * plain `call` is an unsafe replacement for a function call: use this\r
     * function instead.\r
     *\r
     * If `target` reverts with a revert reason, it is bubbled up by this\r
     * function (like regular Solidity function calls).\r
     *\r
     * Returns the raw returned data. To convert to the expected return value,\r
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\r
     *\r
     * Requirements:\r
     *\r
     * - `target` must be a contract.\r
     * - calling `target` with `data` must not revert.\r
     *\r
     * _Available since v3.1._\r
     */\r
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {\r
        return functionCallWithValue(target, data, 0, "Address: low-level call failed");\r
    }\r
\r
    /**\r
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\r
     * `errorMessage` as a fallback revert reason when `target` reverts.\r
     *\r
     * _Available since v3.1._\r
     */\r
    function functionCall(\r
        address target,\r
        bytes memory data,\r
        string memory errorMessage\r
    ) internal returns (bytes memory) {\r
        return functionCallWithValue(target, data, 0, errorMessage);\r
    }\r
\r
    /**\r
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\r
     * but also transferring `value` wei to `target`.\r
     *\r
     * Requirements:\r
     *\r
     * - the calling contract must have an ETH balance of at least `value`.\r
     * - the called Solidity function must be `payable`.\r
     *\r
     * _Available since v3.1._\r
     */\r
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {\r
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");\r
    }\r
\r
    /**\r
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\r
     * with `errorMessage` as a fallback revert reason when `target` reverts.\r
     *\r
     * _Available since v3.1._\r
     */\r
    function functionCallWithValue(\r
        address target,\r
        bytes memory data,\r
        uint256 value,\r
        string memory errorMessage\r
    ) internal returns (bytes memory) {\r
        require(address(this).balance >= value, "Address: insufficient balance for call");\r
        (bool success, bytes memory returndata) = target.call{value: value}(data);\r
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\r
    }\r
\r
    /**\r
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\r
     * but performing a static call.\r
     *\r
     * _Available since v3.3._\r
     */\r
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\r
        return functionStaticCall(target, data, "Address: low-level static call failed");\r
    }\r
\r
    /**\r
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\r
     * but performing a static call.\r
     *\r
     * _Available since v3.3._\r
     */\r
    function functionStaticCall(\r
        address target,\r
        bytes memory data,\r
        string memory errorMessage\r
    ) internal view returns (bytes memory) {\r
        (bool success, bytes memory returndata) = target.staticcall(data);\r
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\r
    }\r
\r
    /**\r
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\r
     * but performing a delegate call.\r
     *\r
     * _Available since v3.4._\r
     */\r
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\r
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");\r
    }\r
\r
    /**\r
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\r
     * but performing a delegate call.\r
     *\r
     * _Available since v3.4._\r
     */\r
    function functionDelegateCall(\r
        address target,\r
        bytes memory data,\r
        string memory errorMessage\r
    ) internal returns (bytes memory) {\r
        (bool success, bytes memory returndata) = target.delegatecall(data);\r
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\r
    }\r
\r
    /**\r
     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling\r
     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.\r
     *\r
     * _Available since v4.8._\r
     */\r
    function verifyCallResultFromTarget(\r
        address target,\r
        bool success,\r
        bytes memory returndata,\r
        string memory errorMessage\r
    ) internal view returns (bytes memory) {\r
        if (success) {\r
            if (returndata.length == 0) {\r
                // only check isContract if the call was successful and the return data is empty\r
                // otherwise we already know that it was a contract\r
                require(isContract(target), "Address: call to non-contract");\r
            }\r
            return returndata;\r
        } else {\r
            _revert(returndata, errorMessage);\r
        }\r
    }\r
\r
    /**\r
     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the\r
     * revert reason or using the provided one.\r
     *\r
     * _Available since v4.3._\r
     */\r
    function verifyCallResult(\r
        bool success,\r
        bytes memory returndata,\r
        string memory errorMessage\r
    ) internal pure returns (bytes memory) {\r
        if (success) {\r
            return returndata;\r
        } else {\r
            _revert(returndata, errorMessage);\r
        }\r
    }\r
\r
    function _revert(bytes memory returndata, string memory errorMessage) private pure {\r
        // Look for revert reason and bubble it up if present\r
        if (returndata.length > 0) {\r
            // The easiest way to bubble the revert reason is using memory via assembly\r
            /// @solidity memory-safe-assembly\r
            assembly {\r
                let returndata_size := mload(returndata)\r
                revert(add(32, returndata), returndata_size)\r
            }\r
        } else {\r
            revert(errorMessage);\r
        }\r
    }\r
}\r
\r
\r
contract BBUX is Context, IERC20, IERC20Metadata,Ownable {\r
\r
    mapping (address => uint256) private _balances;\r
    mapping (address => mapping (address => uint256)) private _allowances;\r
\r
    bool public mintedByDxsale = true;\r
    uint256 private _totalSupply;\r
    bool public mintingFinishedPermanent = false;\r
    string private _name;\r
    string private _symbol;\r
    uint8 private _decimals;\r
    address public _creator;\r
    /**\r
     * @dev Sets the values for {name}, {symbol} and {decimals}.\r
     *\r
     *\r
     * All two of these values are immutable: they can only be set once during\r
     * construction.\r
     */\r
    constructor (address creator_,string memory name_, string memory symbol_,uint8 decimals_, uint256 tokenSupply_) {\r
        _name = name_;\r
        _symbol = symbol_;\r
        _decimals = decimals_;\r
        _creator = creator_;\r
        \r
        _mint(_creator,tokenSupply_);\r
        mintingFinishedPermanent = true;\r
    }\r
\r
    /**\r
     * @dev Returns the name of the token.\r
     */\r
    function name() public view virtual override returns (string memory) {\r
        return _name;\r
    }\r
\r
    /**\r
     * @dev Returns the symbol of the token, usually a shorter version of the\r
     * name.\r
     */\r
    function symbol() public view virtual override returns (string memory) {\r
        return _symbol;\r
    }\r
\r
    /**\r
     * @dev Returns the number of decimals used to get its user representation.\r
     * For example, if `decimals` equals `2`, a balance of `505` tokens should\r
     * be displayed to a user as `5,05` (`505 / 10 ** 2`).\r
     *\r
     * Tokens usually opt for a value of 18, imitating the relationship between\r
     * Ether and Wei. This is the value {ERC20} uses, unless this function is\r
     * overridden;\r
     *\r
     * NOTE: This information is only used for _display_ purposes: it in\r
     * no way affects any of the arithmetic of the contract, including\r
     * {IERC20-balanceOf} and {IERC20-transfer}.\r
     */\r
    function decimals() public view virtual override returns (uint8) {\r
        return _decimals;\r
    }\r
\r
    /**\r
     * @dev See {IERC20-totalSupply}.\r
     */\r
    function totalSupply() public view virtual override returns (uint256) {\r
        return _totalSupply;\r
    }\r
\r
    /**\r
     * @dev See {IERC20-balanceOf}.\r
     */\r
    function balanceOf(address account) public view virtual override returns (uint256) {\r
        return _balances[account];\r
    }\r
\r
    /**\r
     * @dev See {IERC20-transfer}.\r
     *\r
     * Requirements:\r
     *\r
     * - `recipient` cannot be the zero address.\r
     * - the caller must have a balance of at least `amount`.\r
     */\r
    function transfer(address recipient, uint256 amount) public virtual override returns (bool) {\r
        _transfer(_msgSender(), recipient, amount);\r
        return true;\r
    }\r
\r
    /**\r
     * @dev See {IERC20-allowance}.\r
     */\r
    function allowance(address owner, address spender) public view virtual override returns (uint256) {\r
        return _allowances[owner][spender];\r
    }\r
\r
    /**\r
     * @dev See {IERC20-approve}.\r
     *\r
     * Requirements:\r
     *\r
     * - `spender` cannot be the zero address.\r
     */\r
    function approve(address spender, uint256 amount) public virtual override returns (bool) {\r
        _approve(_msgSender(), spender, amount);\r
        return true;\r
    }\r
\r
    /**\r
     * @dev See {IERC20-transferFrom}.\r
     *\r
     * Emits an {Approval} event indicating the updated allowance. This is not\r
     * required by the EIP. See the note at the beginning of {ERC20}.\r
     *\r
     * Requirements:\r
     *\r
     * - `sender` and `recipient` cannot be the zero address.\r
     * - `sender` must have a balance of at least `amount`.\r
     * - the caller must have allowance for ``sender``'s tokens of at least\r
     * `amount`.\r
     */\r
    function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {\r
        _transfer(sender, recipient, amount);\r
\r
        uint256 currentAllowance = _allowances[sender][_msgSender()];\r
        require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");\r
        _approve(sender, _msgSender(), currentAllowance - amount);\r
\r
        return true;\r
    }\r
\r
    /**\r
     * @dev Atomically increases the allowance granted to `spender` by the caller.\r
     *\r
     * This is an alternative to {approve} that can be used as a mitigation for\r
     * problems described in {IERC20-approve}.\r
     *\r
     * Emits an {Approval} event indicating the updated allowance.\r
     *\r
     * Requirements:\r
     *\r
     * - `spender` cannot be the zero address.\r
     */\r
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {\r
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);\r
        return true;\r
    }\r
\r
    /**\r
     * @dev Atomically decreases the allowance granted to `spender` by the caller.\r
     *\r
     * This is an alternative to {approve} that can be used as a mitigation for\r
     * problems described in {IERC20-approve}.\r
     *\r
     * Emits an {Approval} event indicating the updated allowance.\r
     *\r
     * Requirements:\r
     *\r
     * - `spender` cannot be the zero address.\r
     * - `spender` must have allowance for the caller of at least\r
     * `subtractedValue`.\r
     */\r
    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {\r
        uint256 currentAllowance = _allowances[_msgSender()][spender];\r
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");\r
        _approve(_msgSender(), spender, currentAllowance - subtractedValue);\r
\r
        return true;\r
    }\r
\r
    /**\r
     * @dev Moves tokens `amount` from `sender` to `recipient`.\r
     *\r
     * This is internal function is equivalent to {transfer}, and can be used to\r
     * e.g. implement automatic token fees, slashing mechanisms, etc.\r
     *\r
     * Emits a {Transfer} event.\r
     *\r
     * Requirements:\r
     *\r
     * - `sender` cannot be the zero address.\r
     * - `recipient` cannot be the zero address.\r
     * - `sender` must have a balance of at least `amount`.\r
     */\r
    function _transfer(address sender, address recipient, uint256 amount) internal virtual {\r
        require(sender != address(0), "ERC20: transfer from the zero address");\r
        require(recipient != address(0), "ERC20: transfer to the zero address");\r
\r
        _beforeTokenTransfer(sender, recipient, amount);\r
\r
        uint256 senderBalance = _balances[sender];\r
        require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");\r
        _balances[sender] = senderBalance - amount;\r
        _balances[recipient] += amount;\r
\r
        emit Transfer(sender, recipient, amount);\r
    }\r
\r
    /** @dev Creates `amount` tokens and assigns them to `account`, increasing\r
     * the total supply.\r
     *\r
     * Emits a {Transfer} event with `from` set to the zero address.\r
     *\r
     * Requirements:\r
     *\r
     * - `account` cannot be the zero address.\r
     */\r
    function _mint(address account, uint256 amount) internal virtual {\r
        require(!mintingFinishedPermanent,"cant be minted anymore!");\r
        require(account != address(0), "ERC20: mint to the zero address");\r
\r
        _beforeTokenTransfer(address(0), account, amount);\r
\r
        _totalSupply += amount;\r
        _balances[account] += amount;\r
        emit Transfer(address(0), account, amount);\r
    } \r
\r
    /**\r
     * @dev Destroys `amount` tokens from `account`, reducing the\r
     * total supply.\r
     *\r
     * Emits a {Transfer} event with `to` set to the zero address.\r
     *\r
     * Requirements:\r
     *\r
     * - `account` cannot be the zero address.\r
     * - `account` must have at least `amount` tokens.\r
     */\r
    function _burn(address account, uint256 amount) internal virtual {\r
        require(account != address(0), "ERC20: burn from the zero address");\r
\r
        _beforeTokenTransfer(account, address(0), amount);\r
\r
        uint256 accountBalance = _balances[account];\r
        require(accountBalance >= amount, "ERC20: burn amount exceeds balance");\r
        _balances[account] = accountBalance - amount;\r
        _totalSupply -= amount;\r
\r
        emit Transfer(account, address(0), amount);\r
    }\r
\r
    /**\r
     * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.\r
     *\r
     * This internal function is equivalent to `approve`, and can be used to\r
     * e.g. set automatic allowances for certain subsystems, etc.\r
     *\r
     * Emits an {Approval} event.\r
     *\r
     * Requirements:\r
     *\r
     * - `owner` cannot be the zero address.\r
     * - `spender` cannot be the zero address.\r
     */\r
    function _approve(address owner, address spender, uint256 amount) internal virtual {\r
        require(owner != address(0), "ERC20: approve from the zero address");\r
        require(spender != address(0), "ERC20: approve to the zero address");\r
\r
        _allowances[owner][spender] = amount;\r
        emit Approval(owner, spender, amount);\r
    }\r
\r
    /**\r
     * @dev Hook that is called before any transfer of tokens. This includes\r
     * minting and burning.\r
     *\r
     * Calling conditions:\r
     *\r
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\r
     * will be to transferred to `to`.\r
     * - when `from` is zero, `amount` tokens will be minted for `to`.\r
     * - when `to` is zero, `amount` of ``from``'s tokens will be burned.\r
     * - `from` and `to` are never both zero.\r
     *\r
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\r
     */\r
    function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { }\r
}"
    }
  },
  "settings": {
    "optimizer": {
      "enabled": true,
      "runs": 200
    },
    "outputSelection": {
      "*": {
        "*": [
          "evm.bytecode",
          "evm.deployedBytecode",
          "devdoc",
          "userdoc",
          "metadata",
          "abi"
        ]
      }
    },
    "remappings": []
  }
}}