{"Address.sol":{"content":"// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol)\r\n\r\npragma solidity ^0.8.1;\r\n\r\n/**\r\n * @dev Collection of functions related to the address type\r\n */\r\nlibrary Address {\r\n    /**\r\n     * @dev Returns true if `account` is a contract.\r\n     *\r\n     * [IMPORTANT]\r\n     * ====\r\n     * It is unsafe to assume that an address for which this function returns\r\n     * false is an externally-owned account (EOA) and not a contract.\r\n     *\r\n     * Among others, `isContract` will return false for the following\r\n     * types of addresses:\r\n     *\r\n     *  - an externally-owned account\r\n     *  - a contract in construction\r\n     *  - an address where a contract will be created\r\n     *  - an address where a contract lived, but was destroyed\r\n     * ====\r\n     *\r\n     * [IMPORTANT]\r\n     * ====\r\n     * You shouldn\u0027t rely on `isContract` to protect against flash loan attacks!\r\n     *\r\n     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\r\n     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\r\n     * constructor.\r\n     * ====\r\n     */\r\n    function isContract(address account) internal view returns (bool) {\r\n        // This method relies on extcodesize/address.code.length, which returns 0\r\n        // for contracts in construction, since the code is only stored at the end\r\n        // of the constructor execution.\r\n\r\n        return account.code.length \u003e 0;\r\n    }\r\n\r\n    /**\r\n     * @dev Replacement for Solidity\u0027s `transfer`: sends `amount` wei to\r\n     * `recipient`, forwarding all available gas and reverting on errors.\r\n     *\r\n     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\r\n     * of certain opcodes, possibly making contracts go over the 2300 gas limit\r\n     * imposed by `transfer`, making them unable to receive funds via\r\n     * `transfer`. {sendValue} removes this limitation.\r\n     *\r\n     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\r\n     *\r\n     * IMPORTANT: because control is transferred to `recipient`, care must be\r\n     * taken to not create reentrancy vulnerabilities. Consider using\r\n     * {ReentrancyGuard} or the\r\n     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\r\n     */\r\n    function sendValue(address payable recipient, uint256 amount) internal {\r\n        require(address(this).balance \u003e= amount, \"Address: insufficient balance\");\r\n\r\n        (bool success, ) = recipient.call{value: amount}(\"\");\r\n        require(success, \"Address: unable to send value, recipient may have reverted\");\r\n    }\r\n\r\n    /**\r\n     * @dev Performs a Solidity function call using a low level `call`. A\r\n     * plain `call` is an unsafe replacement for a function call: use this\r\n     * function instead.\r\n     *\r\n     * If `target` reverts with a revert reason, it is bubbled up by this\r\n     * function (like regular Solidity function calls).\r\n     *\r\n     * Returns the raw returned data. To convert to the expected return value,\r\n     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - `target` must be a contract.\r\n     * - calling `target` with `data` must not revert.\r\n     *\r\n     * _Available since v3.1._\r\n     */\r\n    function functionCall(address target, bytes memory data) internal returns (bytes memory) {\r\n        return functionCall(target, data, \"Address: low-level call failed\");\r\n    }\r\n\r\n    /**\r\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\r\n     * `errorMessage` as a fallback revert reason when `target` reverts.\r\n     *\r\n     * _Available since v3.1._\r\n     */\r\n    function functionCall(\r\n        address target,\r\n        bytes memory data,\r\n        string memory errorMessage\r\n    ) internal returns (bytes memory) {\r\n        return functionCallWithValue(target, data, 0, errorMessage);\r\n    }\r\n\r\n    /**\r\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\r\n     * but also transferring `value` wei to `target`.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - the calling contract must have an ETH balance of at least `value`.\r\n     * - the called Solidity function must be `payable`.\r\n     *\r\n     * _Available since v3.1._\r\n     */\r\n    function functionCallWithValue(\r\n        address target,\r\n        bytes memory data,\r\n        uint256 value\r\n    ) internal returns (bytes memory) {\r\n        return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\r\n    }\r\n\r\n    /**\r\n     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\r\n     * with `errorMessage` as a fallback revert reason when `target` reverts.\r\n     *\r\n     * _Available since v3.1._\r\n     */\r\n    function functionCallWithValue(\r\n        address target,\r\n        bytes memory data,\r\n        uint256 value,\r\n        string memory errorMessage\r\n    ) internal returns (bytes memory) {\r\n        require(address(this).balance \u003e= value, \"Address: insufficient balance for call\");\r\n        require(isContract(target), \"Address: call to non-contract\");\r\n\r\n        (bool success, bytes memory returndata) = target.call{value: value}(data);\r\n        return verifyCallResult(success, returndata, errorMessage);\r\n    }\r\n\r\n    /**\r\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\r\n     * but performing a static call.\r\n     *\r\n     * _Available since v3.3._\r\n     */\r\n    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\r\n        return functionStaticCall(target, data, \"Address: low-level static call failed\");\r\n    }\r\n\r\n    /**\r\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\r\n     * but performing a static call.\r\n     *\r\n     * _Available since v3.3._\r\n     */\r\n    function functionStaticCall(\r\n        address target,\r\n        bytes memory data,\r\n        string memory errorMessage\r\n    ) internal view returns (bytes memory) {\r\n        require(isContract(target), \"Address: static call to non-contract\");\r\n\r\n        (bool success, bytes memory returndata) = target.staticcall(data);\r\n        return verifyCallResult(success, returndata, errorMessage);\r\n    }\r\n\r\n    /**\r\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\r\n     * but performing a delegate call.\r\n     *\r\n     * _Available since v3.4._\r\n     */\r\n    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\r\n        return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\r\n    }\r\n\r\n    /**\r\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\r\n     * but performing a delegate call.\r\n     *\r\n     * _Available since v3.4._\r\n     */\r\n    function functionDelegateCall(\r\n        address target,\r\n        bytes memory data,\r\n        string memory errorMessage\r\n    ) internal returns (bytes memory) {\r\n        require(isContract(target), \"Address: delegate call to non-contract\");\r\n\r\n        (bool success, bytes memory returndata) = target.delegatecall(data);\r\n        return verifyCallResult(success, returndata, errorMessage);\r\n    }\r\n\r\n    /**\r\n     * @dev Tool to verifies that a low level call was successful, and revert if it wasn\u0027t, either by bubbling the\r\n     * revert reason using the provided one.\r\n     *\r\n     * _Available since v4.3._\r\n     */\r\n    function verifyCallResult(\r\n        bool success,\r\n        bytes memory returndata,\r\n        string memory errorMessage\r\n    ) internal pure returns (bytes memory) {\r\n        if (success) {\r\n            return returndata;\r\n        } else {\r\n            // Look for revert reason and bubble it up if present\r\n            if (returndata.length \u003e 0) {\r\n                // The easiest way to bubble the revert reason is using memory via assembly\r\n\r\n                assembly {\r\n                    let returndata_size := mload(returndata)\r\n                    revert(add(32, returndata), returndata_size)\r\n                }\r\n            } else {\r\n                revert(errorMessage);\r\n            }\r\n        }\r\n    }\r\n}"},"Context.sol":{"content":"// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)\r\n\r\npragma solidity ^0.8.0;\r\n\r\n/**\r\n * @dev Provides information about the current execution context, including the\r\n * sender of the transaction and its data. While these are generally available\r\n * via msg.sender and msg.data, they should not be accessed in such a direct\r\n * manner, since when dealing with meta-transactions the account sending and\r\n * paying for execution may not be the actual sender (as far as an application\r\n * is concerned).\r\n *\r\n * This contract is only required for intermediate, library-like contracts.\r\n */\r\nabstract contract Context {\r\n    function _msgSender() internal view virtual returns (address) {\r\n        return msg.sender;\r\n    }\r\n\r\n    function _msgData() internal view virtual returns (bytes calldata) {\r\n        return msg.data;\r\n    }\r\n}"},"DefaultOperatorFilterer.sol":{"content":"// SPDX-License-Identifier: MIT\r\npragma solidity ^0.8.13;\r\n\r\nimport \"./OperatorFilterer.sol\";\r\n\r\n/**\r\n * @title  DefaultOperatorFilterer\r\n * @notice Inherits from OperatorFilterer and automatically subscribes to the default OpenSea subscription.\r\n */\r\nabstract contract DefaultOperatorFilterer is OperatorFilterer {\r\n    address constant DEFAULT_SUBSCRIPTION = address(0x3cc6CddA760b79bAfa08dF41ECFA224f810dCeB6);\r\n\r\n    constructor() OperatorFilterer(DEFAULT_SUBSCRIPTION, true) {}\r\n}"},"ECDSA.sol":{"content":"// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts (last updated v4.5.0) (utils/cryptography/ECDSA.sol)\r\n\r\npragma solidity ^0.8.0;\r\n\r\nimport \"./Strings.sol\";\r\n\r\n/**\r\n * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.\r\n *\r\n * These functions can be used to verify that a message was signed by the holder\r\n * of the private keys of a given address.\r\n */\r\nlibrary ECDSA {\r\n    enum RecoverError {\r\n        NoError,\r\n        InvalidSignature,\r\n        InvalidSignatureLength,\r\n        InvalidSignatureS,\r\n        InvalidSignatureV\r\n    }\r\n\r\n    function _throwError(RecoverError error) private pure {\r\n        if (error == RecoverError.NoError) {\r\n            return; // no error: do nothing\r\n        } else if (error == RecoverError.InvalidSignature) {\r\n            revert(\"ECDSA: invalid signature\");\r\n        } else if (error == RecoverError.InvalidSignatureLength) {\r\n            revert(\"ECDSA: invalid signature length\");\r\n        } else if (error == RecoverError.InvalidSignatureS) {\r\n            revert(\"ECDSA: invalid signature \u0027s\u0027 value\");\r\n        } else if (error == RecoverError.InvalidSignatureV) {\r\n            revert(\"ECDSA: invalid signature \u0027v\u0027 value\");\r\n        }\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the address that signed a hashed message (`hash`) with\r\n     * `signature` or error string. This address can then be used for verification purposes.\r\n     *\r\n     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:\r\n     * this function rejects them by requiring the `s` value to be in the lower\r\n     * half order, and the `v` value to be either 27 or 28.\r\n     *\r\n     * IMPORTANT: `hash` _must_ be the result of a hash operation for the\r\n     * verification to be secure: it is possible to craft signatures that\r\n     * recover to arbitrary addresses for non-hashed data. A safe way to ensure\r\n     * this is by receiving a hash of the original message (which may otherwise\r\n     * be too long), and then calling {toEthSignedMessageHash} on it.\r\n     *\r\n     * Documentation for signature generation:\r\n     * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]\r\n     * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]\r\n     *\r\n     * _Available since v4.3._\r\n     */\r\n    function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {\r\n        // Check the signature length\r\n        // - case 65: r,s,v signature (standard)\r\n        // - case 64: r,vs signature (cf https://eips.ethereum.org/EIPS/eip-2098) _Available since v4.1._\r\n        if (signature.length == 65) {\r\n            bytes32 r;\r\n            bytes32 s;\r\n            uint8 v;\r\n            // ecrecover takes the signature parameters, and the only way to get them\r\n            // currently is to use assembly.\r\n            assembly {\r\n                r := mload(add(signature, 0x20))\r\n                s := mload(add(signature, 0x40))\r\n                v := byte(0, mload(add(signature, 0x60)))\r\n            }\r\n            return tryRecover(hash, v, r, s);\r\n        } else if (signature.length == 64) {\r\n            bytes32 r;\r\n            bytes32 vs;\r\n            // ecrecover takes the signature parameters, and the only way to get them\r\n            // currently is to use assembly.\r\n            assembly {\r\n                r := mload(add(signature, 0x20))\r\n                vs := mload(add(signature, 0x40))\r\n            }\r\n            return tryRecover(hash, r, vs);\r\n        } else {\r\n            return (address(0), RecoverError.InvalidSignatureLength);\r\n        }\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the address that signed a hashed message (`hash`) with\r\n     * `signature`. This address can then be used for verification purposes.\r\n     *\r\n     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:\r\n     * this function rejects them by requiring the `s` value to be in the lower\r\n     * half order, and the `v` value to be either 27 or 28.\r\n     *\r\n     * IMPORTANT: `hash` _must_ be the result of a hash operation for the\r\n     * verification to be secure: it is possible to craft signatures that\r\n     * recover to arbitrary addresses for non-hashed data. A safe way to ensure\r\n     * this is by receiving a hash of the original message (which may otherwise\r\n     * be too long), and then calling {toEthSignedMessageHash} on it.\r\n     */\r\n    function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {\r\n        (address recovered, RecoverError error) = tryRecover(hash, signature);\r\n        _throwError(error);\r\n        return recovered;\r\n    }\r\n\r\n    /**\r\n     * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.\r\n     *\r\n     * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]\r\n     *\r\n     * _Available since v4.3._\r\n     */\r\n    function tryRecover(\r\n        bytes32 hash,\r\n        bytes32 r,\r\n        bytes32 vs\r\n    ) internal pure returns (address, RecoverError) {\r\n        bytes32 s = vs \u0026 bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);\r\n        uint8 v = uint8((uint256(vs) \u003e\u003e 255) + 27);\r\n        return tryRecover(hash, v, r, s);\r\n    }\r\n\r\n    /**\r\n     * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.\r\n     *\r\n     * _Available since v4.2._\r\n     */\r\n    function recover(\r\n        bytes32 hash,\r\n        bytes32 r,\r\n        bytes32 vs\r\n    ) internal pure returns (address) {\r\n        (address recovered, RecoverError error) = tryRecover(hash, r, vs);\r\n        _throwError(error);\r\n        return recovered;\r\n    }\r\n\r\n    /**\r\n     * @dev Overload of {ECDSA-tryRecover} that receives the `v`,\r\n     * `r` and `s` signature fields separately.\r\n     *\r\n     * _Available since v4.3._\r\n     */\r\n    function tryRecover(\r\n        bytes32 hash,\r\n        uint8 v,\r\n        bytes32 r,\r\n        bytes32 s\r\n    ) internal pure returns (address, RecoverError) {\r\n        // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature\r\n        // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines\r\n        // the valid range for s in (301): 0 \u003c s \u003c secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most\r\n        // signatures from current libraries generate a unique signature with an s-value in the lower half order.\r\n        //\r\n        // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value\r\n        // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or\r\n        // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept\r\n        // these malleable signatures as well.\r\n        if (uint256(s) \u003e 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {\r\n            return (address(0), RecoverError.InvalidSignatureS);\r\n        }\r\n        if (v != 27 \u0026\u0026 v != 28) {\r\n            return (address(0), RecoverError.InvalidSignatureV);\r\n        }\r\n\r\n        // If the signature is valid (and not malleable), return the signer address\r\n        address signer = ecrecover(hash, v, r, s);\r\n        if (signer == address(0)) {\r\n            return (address(0), RecoverError.InvalidSignature);\r\n        }\r\n\r\n        return (signer, RecoverError.NoError);\r\n    }\r\n\r\n    /**\r\n     * @dev Overload of {ECDSA-recover} that receives the `v`,\r\n     * `r` and `s` signature fields separately.\r\n     */\r\n    function recover(\r\n        bytes32 hash,\r\n        uint8 v,\r\n        bytes32 r,\r\n        bytes32 s\r\n    ) internal pure returns (address) {\r\n        (address recovered, RecoverError error) = tryRecover(hash, v, r, s);\r\n        _throwError(error);\r\n        return recovered;\r\n    }\r\n\r\n    /**\r\n     * @dev Returns an Ethereum Signed Message, created from a `hash`. This\r\n     * produces hash corresponding to the one signed with the\r\n     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]\r\n     * JSON-RPC method as part of EIP-191.\r\n     *\r\n     * See {recover}.\r\n     */\r\n    function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) {\r\n        // 32 is the length in bytes of hash,\r\n        // enforced by the type signature above\r\n        return keccak256(abi.encodePacked(\"\\x19Ethereum Signed Message:\\n32\", hash));\r\n    }\r\n\r\n    /**\r\n     * @dev Returns an Ethereum Signed Message, created from `s`. This\r\n     * produces hash corresponding to the one signed with the\r\n     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]\r\n     * JSON-RPC method as part of EIP-191.\r\n     *\r\n     * See {recover}.\r\n     */\r\n    function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) {\r\n        return keccak256(abi.encodePacked(\"\\x19Ethereum Signed Message:\\n\", Strings.toString(s.length), s));\r\n    }\r\n\r\n    /**\r\n     * @dev Returns an Ethereum Signed Typed Data, created from a\r\n     * `domainSeparator` and a `structHash`. This produces hash corresponding\r\n     * to the one signed with the\r\n     * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`]\r\n     * JSON-RPC method as part of EIP-712.\r\n     *\r\n     * See {recover}.\r\n     */\r\n    function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32) {\r\n        return keccak256(abi.encodePacked(\"\\x19\\x01\", domainSeparator, structHash));\r\n    }\r\n}"},"ERC165.sol":{"content":"// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)\r\n\r\npragma solidity ^0.8.0;\r\n\r\nimport \"./IERC165.sol\";\r\n\r\n/**\r\n * @dev Implementation of the {IERC165} interface.\r\n *\r\n * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check\r\n * for the additional interface id that will be supported. For example:\r\n *\r\n * ```solidity\r\n * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\r\n *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);\r\n * }\r\n * ```\r\n *\r\n * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.\r\n */\r\nabstract contract ERC165 is IERC165 {\r\n    /**\r\n     * @dev See {IERC165-supportsInterface}.\r\n     */\r\n    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\r\n        return interfaceId == type(IERC165).interfaceId;\r\n    }\r\n}"},"ERC2981.sol":{"content":"// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts (last updated v4.6.0) (token/common/ERC2981.sol)\r\n\r\npragma solidity ^0.8.0;\r\n\r\nimport \"./IERC2981.sol\";\r\nimport \"./ERC165.sol\";\r\n\r\n/**\r\n * @dev Implementation of the NFT Royalty Standard, a standardized way to retrieve royalty payment information.\r\n *\r\n * Royalty information can be specified globally for all token ids via {_setDefaultRoyalty}, and/or individually for\r\n * specific token ids via {_setTokenRoyalty}. The latter takes precedence over the first.\r\n *\r\n * Royalty is specified as a fraction of sale price. {_feeDenominator} is overridable but defaults to 10000, meaning the\r\n * fee is specified in basis points by default.\r\n *\r\n * IMPORTANT: ERC-2981 only specifies a way to signal royalty information and does not enforce its payment. See\r\n * https://eips.ethereum.org/EIPS/eip-2981#optional-royalty-payments[Rationale] in the EIP. Marketplaces are expected to\r\n * voluntarily pay royalties together with sales, but note that this standard is not yet widely supported.\r\n *\r\n * _Available since v4.5._\r\n */\r\nabstract contract ERC2981 is IERC2981, ERC165 {\r\n    struct RoyaltyInfo {\r\n        address receiver;\r\n        uint96 royaltyFraction;\r\n    }\r\n\r\n    RoyaltyInfo private _defaultRoyaltyInfo;\r\n    mapping(uint256 =\u003e RoyaltyInfo) private _tokenRoyaltyInfo;\r\n\r\n    /**\r\n     * @dev See {IERC165-supportsInterface}.\r\n     */\r\n    function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC165) returns (bool) {\r\n        return interfaceId == type(IERC2981).interfaceId || super.supportsInterface(interfaceId);\r\n    }\r\n\r\n    /**\r\n     * @inheritdoc IERC2981\r\n     */\r\n    function royaltyInfo(uint256 _tokenId, uint256 _salePrice) public view virtual override returns (address, uint256) {\r\n        RoyaltyInfo memory royalty = _tokenRoyaltyInfo[_tokenId];\r\n\r\n        if (royalty.receiver == address(0)) {\r\n            royalty = _defaultRoyaltyInfo;\r\n        }\r\n\r\n        uint256 royaltyAmount = (_salePrice * royalty.royaltyFraction) / _feeDenominator();\r\n\r\n        return (royalty.receiver, royaltyAmount);\r\n    }\r\n\r\n    /**\r\n     * @dev The denominator with which to interpret the fee set in {_setTokenRoyalty} and {_setDefaultRoyalty} as a\r\n     * fraction of the sale price. Defaults to 10000 so fees are expressed in basis points, but may be customized by an\r\n     * override.\r\n     */\r\n    function _feeDenominator() internal pure virtual returns (uint96) {\r\n        return 10000;\r\n    }\r\n\r\n    /**\r\n     * @dev Sets the royalty information that all ids in this contract will default to.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - `receiver` cannot be the zero address.\r\n     * - `feeNumerator` cannot be greater than the fee denominator.\r\n     */\r\n    function _setDefaultRoyalty(address receiver, uint96 feeNumerator) internal virtual {\r\n        require(feeNumerator \u003c= _feeDenominator(), \"ERC2981: royalty fee will exceed salePrice\");\r\n        require(receiver != address(0), \"ERC2981: invalid receiver\");\r\n\r\n        _defaultRoyaltyInfo = RoyaltyInfo(receiver, feeNumerator);\r\n    }\r\n\r\n    /**\r\n     * @dev Removes default royalty information.\r\n     */\r\n    function _deleteDefaultRoyalty() internal virtual {\r\n        delete _defaultRoyaltyInfo;\r\n    }\r\n\r\n    /**\r\n     * @dev Sets the royalty information for a specific token id, overriding the global default.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - `tokenId` must be already minted.\r\n     * - `receiver` cannot be the zero address.\r\n     * - `feeNumerator` cannot be greater than the fee denominator.\r\n     */\r\n    function _setTokenRoyalty(\r\n        uint256 tokenId,\r\n        address receiver,\r\n        uint96 feeNumerator\r\n    ) internal virtual {\r\n        require(feeNumerator \u003c= _feeDenominator(), \"ERC2981: royalty fee will exceed salePrice\");\r\n        require(receiver != address(0), \"ERC2981: Invalid parameters\");\r\n\r\n        _tokenRoyaltyInfo[tokenId] = RoyaltyInfo(receiver, feeNumerator);\r\n    }\r\n\r\n    /**\r\n     * @dev Resets royalty information for the token id back to the global default.\r\n     */\r\n    function _resetTokenRoyalty(uint256 tokenId) internal virtual {\r\n        delete _tokenRoyaltyInfo[tokenId];\r\n    }\r\n}"},"ERC721A.sol":{"content":"// SPDX-License-Identifier: MIT\r\n// Creator: Chiru Labs\r\n\r\npragma solidity ^0.8.4;\r\n\r\nimport \u0027./IERC721.sol\u0027;\r\nimport \u0027./IERC721Receiver.sol\u0027;\r\nimport \u0027./IERC721Metadata.sol\u0027;\r\nimport \u0027./Address.sol\u0027;\r\nimport \u0027./Context.sol\u0027;\r\nimport \u0027./Strings.sol\u0027;\r\nimport \u0027./ERC165.sol\u0027;\r\n\r\nerror ApprovalCallerNotOwnerNorApproved();\r\nerror ApprovalQueryForNonexistentToken();\r\nerror ApproveToCaller();\r\nerror ApprovalToCurrentOwner();\r\nerror BalanceQueryForZeroAddress();\r\nerror MintToZeroAddress();\r\nerror MintZeroQuantity();\r\nerror OwnerQueryForNonexistentToken();\r\nerror TransferCallerNotOwnerNorApproved();\r\nerror TransferFromIncorrectOwner();\r\nerror TransferToNonERC721ReceiverImplementer();\r\nerror TransferToZeroAddress();\r\nerror URIQueryForNonexistentToken();\r\n\r\n/**\r\n * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including\r\n * the Metadata extension. Built to optimize for lower gas during batch mints.\r\n *\r\n * Assumes serials are sequentially minted starting at _startTokenId() (defaults to 0, e.g. 0, 1, 2, 3..).\r\n *\r\n * Assumes that an owner cannot have more than 2**64 - 1 (max value of uint64) of supply.\r\n *\r\n * Assumes that the maximum token id cannot exceed 2**256 - 1 (max value of uint256).\r\n */\r\ncontract ERC721A is Context, ERC165, IERC721, IERC721Metadata {\r\n    using Address for address;\r\n    using Strings for uint256;\r\n\r\n    // Compiler will pack this into a single 256bit word.\r\n    struct TokenOwnership {\r\n        // The address of the owner.\r\n        address addr;\r\n        // Keeps track of the start time of ownership with minimal overhead for tokenomics.\r\n        uint64 startTimestamp;\r\n        // Whether the token has been burned.\r\n        bool burned;\r\n    }\r\n\r\n    // Compiler will pack this into a single 256bit word.\r\n    struct AddressData {\r\n        // Realistically, 2**64-1 is more than enough.\r\n        uint64 balance;\r\n        // Keeps track of mint count with minimal overhead for tokenomics.\r\n        uint64 numberMinted;\r\n        // Keeps track of burn count with minimal overhead for tokenomics.\r\n        uint64 numberBurned;\r\n        // For miscellaneous variable(s) pertaining to the address\r\n        // (e.g. number of whitelist mint slots used).\r\n        // If there are multiple variables, please pack them into a uint64.\r\n        uint64 aux;\r\n    }\r\n\r\n    // The tokenId of the next token to be minted.\r\n    uint256 internal _currentIndex;\r\n\r\n    // The number of tokens burned.\r\n    uint256 internal _burnCounter;\r\n\r\n    // Token name\r\n    string private _name;\r\n\r\n    // Token symbol\r\n    string private _symbol;\r\n\r\n    // Mapping from token ID to ownership details\r\n    // An empty struct value does not necessarily mean the token is unowned. See _ownershipOf implementation for details.\r\n    mapping(uint256 =\u003e TokenOwnership) internal _ownerships;\r\n\r\n    // Mapping owner address to address data\r\n    mapping(address =\u003e AddressData) private _addressData;\r\n\r\n    // Mapping from token ID to approved address\r\n    mapping(uint256 =\u003e address) private _tokenApprovals;\r\n\r\n    // Mapping from owner to operator approvals\r\n    mapping(address =\u003e mapping(address =\u003e bool)) private _operatorApprovals;\r\n\r\n    constructor(string memory name_, string memory symbol_) {\r\n        _name = name_;\r\n        _symbol = symbol_;\r\n        _currentIndex = _startTokenId();\r\n    }\r\n\r\n    /**\r\n     * To change the starting tokenId, please override this function.\r\n     */\r\n    function _startTokenId() internal view virtual returns (uint256) {\r\n        return 0;\r\n    }\r\n\r\n    /**\r\n     * @dev Burned tokens are calculated here, use _totalMinted() if you want to count just minted tokens.\r\n     */\r\n    function totalSupply() public view returns (uint256) {\r\n        // Counter underflow is impossible as _burnCounter cannot be incremented\r\n        // more than _currentIndex - _startTokenId() times\r\n        unchecked {\r\n            return _currentIndex - _burnCounter - _startTokenId();\r\n        }\r\n    }\r\n\r\n    /**\r\n     * Returns the total amount of tokens minted in the contract.\r\n     */\r\n    function _totalMinted() internal view returns (uint256) {\r\n        // Counter underflow is impossible as _currentIndex does not decrement,\r\n        // and it is initialized to _startTokenId()\r\n        unchecked {\r\n            return _currentIndex - _startTokenId();\r\n        }\r\n    }\r\n\r\n    /**\r\n     * @dev See {IERC165-supportsInterface}.\r\n     */\r\n    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {\r\n        return\r\n            interfaceId == type(IERC721).interfaceId ||\r\n            interfaceId == type(IERC721Metadata).interfaceId ||\r\n            super.supportsInterface(interfaceId);\r\n    }\r\n\r\n    /**\r\n     * @dev See {IERC721-balanceOf}.\r\n     */\r\n    function balanceOf(address owner) public view override returns (uint256) {\r\n        if (owner == address(0)) revert BalanceQueryForZeroAddress();\r\n        return uint256(_addressData[owner].balance);\r\n    }\r\n\r\n    /**\r\n     * Returns the number of tokens minted by `owner`.\r\n     */\r\n    function _numberMinted(address owner) internal view returns (uint256) {\r\n        return uint256(_addressData[owner].numberMinted);\r\n    }\r\n\r\n    /**\r\n     * Returns the number of tokens burned by or on behalf of `owner`.\r\n     */\r\n    function _numberBurned(address owner) internal view returns (uint256) {\r\n        return uint256(_addressData[owner].numberBurned);\r\n    }\r\n\r\n    /**\r\n     * Returns the auxillary data for `owner`. (e.g. number of whitelist mint slots used).\r\n     */\r\n    function _getAux(address owner) internal view returns (uint64) {\r\n        return _addressData[owner].aux;\r\n    }\r\n\r\n    /**\r\n     * Sets the auxillary data for `owner`. (e.g. number of whitelist mint slots used).\r\n     * If there are multiple variables, please pack them into a uint64.\r\n     */\r\n    function _setAux(address owner, uint64 aux) internal {\r\n        _addressData[owner].aux = aux;\r\n    }\r\n\r\n    /**\r\n     * Gas spent here starts off proportional to the maximum mint batch size.\r\n     * It gradually moves to O(1) as tokens get transferred around in the collection over time.\r\n     */\r\n    function _ownershipOf(uint256 tokenId) internal view returns (TokenOwnership memory) {\r\n        uint256 curr = tokenId;\r\n\r\n        unchecked {\r\n            if (_startTokenId() \u003c= curr \u0026\u0026 curr \u003c _currentIndex) {\r\n                TokenOwnership memory ownership = _ownerships[curr];\r\n                if (!ownership.burned) {\r\n                    if (ownership.addr != address(0)) {\r\n                        return ownership;\r\n                    }\r\n                    // Invariant:\r\n                    // There will always be an ownership that has an address and is not burned\r\n                    // before an ownership that does not have an address and is not burned.\r\n                    // Hence, curr will not underflow.\r\n                    while (true) {\r\n                        curr--;\r\n                        ownership = _ownerships[curr];\r\n                        if (ownership.addr != address(0)) {\r\n                            return ownership;\r\n                        }\r\n                    }\r\n                }\r\n            }\r\n        }\r\n        revert OwnerQueryForNonexistentToken();\r\n    }\r\n\r\n    /**\r\n     * @dev See {IERC721-ownerOf}.\r\n     */\r\n    function ownerOf(uint256 tokenId) public view override returns (address) {\r\n        return _ownershipOf(tokenId).addr;\r\n    }\r\n\r\n    /**\r\n     * @dev See {IERC721Metadata-name}.\r\n     */\r\n    function name() public view virtual override returns (string memory) {\r\n        return _name;\r\n    }\r\n\r\n    /**\r\n     * @dev See {IERC721Metadata-symbol}.\r\n     */\r\n    function symbol() public view virtual override returns (string memory) {\r\n        return _symbol;\r\n    }\r\n\r\n    /**\r\n     * @dev See {IERC721Metadata-tokenURI}.\r\n     */\r\n    function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {\r\n        if (!_exists(tokenId)) revert URIQueryForNonexistentToken();\r\n\r\n        string memory baseURI = _baseURI();\r\n        return bytes(baseURI).length != 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : \u0027\u0027;\r\n    }\r\n\r\n    /**\r\n     * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each\r\n     * token will be the concatenation of the `baseURI` and the `tokenId`. Empty\r\n     * by default, can be overriden in child contracts.\r\n     */\r\n    function _baseURI() internal view virtual returns (string memory) {\r\n        return \u0027\u0027;\r\n    }\r\n\r\n    /**\r\n     * @dev See {IERC721-approve}.\r\n     */\r\n    function approve(address to, uint256 tokenId) public virtual override {\r\n        address owner = ERC721A.ownerOf(tokenId);\r\n        if (to == owner) revert ApprovalToCurrentOwner();\r\n\r\n        if (_msgSender() != owner \u0026\u0026 !isApprovedForAll(owner, _msgSender())) {\r\n            revert ApprovalCallerNotOwnerNorApproved();\r\n        }\r\n\r\n        _approve(to, tokenId, owner);\r\n    }\r\n\r\n    /**\r\n     * @dev See {IERC721-getApproved}.\r\n     */\r\n    function getApproved(uint256 tokenId) public view override returns (address) {\r\n        if (!_exists(tokenId)) revert ApprovalQueryForNonexistentToken();\r\n\r\n        return _tokenApprovals[tokenId];\r\n    }\r\n\r\n    /**\r\n     * @dev See {IERC721-setApprovalForAll}.\r\n     */\r\n    function setApprovalForAll(address operator, bool approved) public virtual override {\r\n        if (operator == _msgSender()) revert ApproveToCaller();\r\n\r\n        _operatorApprovals[_msgSender()][operator] = approved;\r\n        emit ApprovalForAll(_msgSender(), operator, approved);\r\n    }\r\n\r\n    /**\r\n     * @dev See {IERC721-isApprovedForAll}.\r\n     */\r\n    function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {\r\n        return _operatorApprovals[owner][operator];\r\n    }\r\n\r\n    /**\r\n     * @dev See {IERC721-transferFrom}.\r\n     */\r\n    function transferFrom(\r\n        address from,\r\n        address to,\r\n        uint256 tokenId\r\n    ) public virtual override {\r\n        _transfer(from, to, tokenId);\r\n    }\r\n\r\n    /**\r\n     * @dev See {IERC721-safeTransferFrom}.\r\n     */\r\n    function safeTransferFrom(\r\n        address from,\r\n        address to,\r\n        uint256 tokenId\r\n    ) public virtual override {\r\n        safeTransferFrom(from, to, tokenId, \u0027\u0027);\r\n    }\r\n\r\n    /**\r\n     * @dev See {IERC721-safeTransferFrom}.\r\n     */\r\n    function safeTransferFrom(\r\n        address from,\r\n        address to,\r\n        uint256 tokenId,\r\n        bytes memory _data\r\n    ) public virtual override {\r\n        _transfer(from, to, tokenId);\r\n        if (to.isContract() \u0026\u0026 !_checkContractOnERC721Received(from, to, tokenId, _data)) {\r\n            revert TransferToNonERC721ReceiverImplementer();\r\n        }\r\n    }\r\n\r\n    /**\r\n     * @dev Returns whether `tokenId` exists.\r\n     *\r\n     * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.\r\n     *\r\n     * Tokens start existing when they are minted (`_mint`),\r\n     */\r\n    function _exists(uint256 tokenId) internal view returns (bool) {\r\n        return _startTokenId() \u003c= tokenId \u0026\u0026 tokenId \u003c _currentIndex \u0026\u0026 !_ownerships[tokenId].burned;\r\n    }\r\n\r\n    function _safeMint(address to, uint256 quantity) internal {\r\n        _safeMint(to, quantity, \u0027\u0027);\r\n    }\r\n\r\n    /**\r\n     * @dev Safely mints `quantity` tokens and transfers them to `to`.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called for each safe transfer.\r\n     * - `quantity` must be greater than 0.\r\n     *\r\n     * Emits a {Transfer} event.\r\n     */\r\n    function _safeMint(\r\n        address to,\r\n        uint256 quantity,\r\n        bytes memory _data\r\n    ) internal {\r\n        _mint(to, quantity, _data, true);\r\n    }\r\n\r\n    /**\r\n     * @dev Mints `quantity` tokens and transfers them to `to`.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - `to` cannot be the zero address.\r\n     * - `quantity` must be greater than 0.\r\n     *\r\n     * Emits a {Transfer} event.\r\n     */\r\n    function _mint(\r\n        address to,\r\n        uint256 quantity,\r\n        bytes memory _data,\r\n        bool safe\r\n    ) internal {\r\n        uint256 startTokenId = _currentIndex;\r\n        if (to == address(0)) revert MintToZeroAddress();\r\n        if (quantity == 0) revert MintZeroQuantity();\r\n\r\n        _beforeTokenTransfers(address(0), to, startTokenId, quantity);\r\n\r\n        // Overflows are incredibly unrealistic.\r\n        // balance or numberMinted overflow if current value of either + quantity \u003e 1.8e19 (2**64) - 1\r\n        // updatedIndex overflows if _currentIndex + quantity \u003e 1.2e77 (2**256) - 1\r\n        unchecked {\r\n            _addressData[to].balance += uint64(quantity);\r\n            _addressData[to].numberMinted += uint64(quantity);\r\n\r\n            _ownerships[startTokenId].addr = to;\r\n            _ownerships[startTokenId].startTimestamp = uint64(block.timestamp);\r\n\r\n            uint256 updatedIndex = startTokenId;\r\n            uint256 end = updatedIndex + quantity;\r\n\r\n            if (safe \u0026\u0026 to.isContract()) {\r\n                do {\r\n                    emit Transfer(address(0), to, updatedIndex);\r\n                    if (!_checkContractOnERC721Received(address(0), to, updatedIndex++, _data)) {\r\n                        revert TransferToNonERC721ReceiverImplementer();\r\n                    }\r\n                } while (updatedIndex != end);\r\n                // Reentrancy protection\r\n                if (_currentIndex != startTokenId) revert();\r\n            } else {\r\n                do {\r\n                    emit Transfer(address(0), to, updatedIndex++);\r\n                } while (updatedIndex != end);\r\n            }\r\n            _currentIndex = updatedIndex;\r\n        }\r\n        _afterTokenTransfers(address(0), to, startTokenId, quantity);\r\n    }\r\n\r\n    /**\r\n     * @dev Transfers `tokenId` from `from` to `to`.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - `to` cannot be the zero address.\r\n     * - `tokenId` token must be owned by `from`.\r\n     *\r\n     * Emits a {Transfer} event.\r\n     */\r\n    function _transfer(\r\n        address from,\r\n        address to,\r\n        uint256 tokenId\r\n    ) private {\r\n        TokenOwnership memory prevOwnership = _ownershipOf(tokenId);\r\n\r\n        if (prevOwnership.addr != from) revert TransferFromIncorrectOwner();\r\n\r\n        bool isApprovedOrOwner = (_msgSender() == from ||\r\n            isApprovedForAll(from, _msgSender()) ||\r\n            getApproved(tokenId) == _msgSender());\r\n\r\n        if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();\r\n        if (to == address(0)) revert TransferToZeroAddress();\r\n\r\n        _beforeTokenTransfers(from, to, tokenId, 1);\r\n\r\n        // Clear approvals from the previous owner\r\n        _approve(address(0), tokenId, from);\r\n\r\n        // Underflow of the sender\u0027s balance is impossible because we check for\r\n        // ownership above and the recipient\u0027s balance can\u0027t realistically overflow.\r\n        // Counter overflow is incredibly unrealistic as tokenId would have to be 2**256.\r\n        unchecked {\r\n            _addressData[from].balance -= 1;\r\n            _addressData[to].balance += 1;\r\n\r\n            TokenOwnership storage currSlot = _ownerships[tokenId];\r\n            currSlot.addr = to;\r\n            currSlot.startTimestamp = uint64(block.timestamp);\r\n\r\n            // If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.\r\n            // Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.\r\n            uint256 nextTokenId = tokenId + 1;\r\n            TokenOwnership storage nextSlot = _ownerships[nextTokenId];\r\n            if (nextSlot.addr == address(0)) {\r\n                // This will suffice for checking _exists(nextTokenId),\r\n                // as a burned slot cannot contain the zero address.\r\n                if (nextTokenId != _currentIndex) {\r\n                    nextSlot.addr = from;\r\n                    nextSlot.startTimestamp = prevOwnership.startTimestamp;\r\n                }\r\n            }\r\n        }\r\n\r\n        emit Transfer(from, to, tokenId);\r\n        _afterTokenTransfers(from, to, tokenId, 1);\r\n    }\r\n\r\n    /**\r\n     * @dev This is equivalent to _burn(tokenId, false)\r\n     */\r\n    function _burn(uint256 tokenId) internal virtual {\r\n        _burn(tokenId, false);\r\n    }\r\n\r\n    /**\r\n     * @dev Destroys `tokenId`.\r\n     * The approval is cleared when the token is burned.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - `tokenId` must exist.\r\n     *\r\n     * Emits a {Transfer} event.\r\n     */\r\n    function _burn(uint256 tokenId, bool approvalCheck) internal virtual {\r\n        TokenOwnership memory prevOwnership = _ownershipOf(tokenId);\r\n\r\n        address from = prevOwnership.addr;\r\n\r\n        if (approvalCheck) {\r\n            bool isApprovedOrOwner = (_msgSender() == from ||\r\n                isApprovedForAll(from, _msgSender()) ||\r\n                getApproved(tokenId) == _msgSender());\r\n\r\n            if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();\r\n        }\r\n\r\n        _beforeTokenTransfers(from, address(0), tokenId, 1);\r\n\r\n        // Clear approvals from the previous owner\r\n        _approve(address(0), tokenId, from);\r\n\r\n        // Underflow of the sender\u0027s balance is impossible because we check for\r\n        // ownership above and the recipient\u0027s balance can\u0027t realistically overflow.\r\n        // Counter overflow is incredibly unrealistic as tokenId would have to be 2**256.\r\n        unchecked {\r\n            AddressData storage addressData = _addressData[from];\r\n            addressData.balance -= 1;\r\n            addressData.numberBurned += 1;\r\n\r\n            // Keep track of who burned the token, and the timestamp of burning.\r\n            TokenOwnership storage currSlot = _ownerships[tokenId];\r\n            currSlot.addr = from;\r\n            currSlot.startTimestamp = uint64(block.timestamp);\r\n            currSlot.burned = true;\r\n\r\n            // If the ownership slot of tokenId+1 is not explicitly set, that means the burn initiator owns it.\r\n            // Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.\r\n            uint256 nextTokenId = tokenId + 1;\r\n            TokenOwnership storage nextSlot = _ownerships[nextTokenId];\r\n            if (nextSlot.addr == address(0)) {\r\n                // This will suffice for checking _exists(nextTokenId),\r\n                // as a burned slot cannot contain the zero address.\r\n                if (nextTokenId != _currentIndex) {\r\n                    nextSlot.addr = from;\r\n                    nextSlot.startTimestamp = prevOwnership.startTimestamp;\r\n                }\r\n            }\r\n        }\r\n\r\n        emit Transfer(from, address(0), tokenId);\r\n        _afterTokenTransfers(from, address(0), tokenId, 1);\r\n\r\n        // Overflow not possible, as _burnCounter cannot be exceed _currentIndex times.\r\n        unchecked {\r\n            _burnCounter++;\r\n        }\r\n    }\r\n\r\n    /**\r\n     * @dev Approve `to` to operate on `tokenId`\r\n     *\r\n     * Emits a {Approval} event.\r\n     */\r\n    function _approve(\r\n        address to,\r\n        uint256 tokenId,\r\n        address owner\r\n    ) private {\r\n        _tokenApprovals[tokenId] = to;\r\n        emit Approval(owner, to, tokenId);\r\n    }\r\n\r\n    /**\r\n     * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target contract.\r\n     *\r\n     * @param from address representing the previous owner of the given token ID\r\n     * @param to target address that will receive the tokens\r\n     * @param tokenId uint256 ID of the token to be transferred\r\n     * @param _data bytes optional data to send along with the call\r\n     * @return bool whether the call correctly returned the expected magic value\r\n     */\r\n    function _checkContractOnERC721Received(\r\n        address from,\r\n        address to,\r\n        uint256 tokenId,\r\n        bytes memory _data\r\n    ) private returns (bool) {\r\n        try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) {\r\n            return retval == IERC721Receiver(to).onERC721Received.selector;\r\n        } catch (bytes memory reason) {\r\n            if (reason.length == 0) {\r\n                revert TransferToNonERC721ReceiverImplementer();\r\n            } else {\r\n                assembly {\r\n                    revert(add(32, reason), mload(reason))\r\n                }\r\n            }\r\n        }\r\n    }\r\n\r\n    /**\r\n     * @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.\r\n     * And also called before burning one token.\r\n     *\r\n     * startTokenId - the first token id to be transferred\r\n     * quantity - the amount to be transferred\r\n     *\r\n     * Calling conditions:\r\n     *\r\n     * - When `from` and `to` are both non-zero, `from`\u0027s `tokenId` will be\r\n     * transferred to `to`.\r\n     * - When `from` is zero, `tokenId` will be minted for `to`.\r\n     * - When `to` is zero, `tokenId` will be burned by `from`.\r\n     * - `from` and `to` are never both zero.\r\n     */\r\n    function _beforeTokenTransfers(\r\n        address from,\r\n        address to,\r\n        uint256 startTokenId,\r\n        uint256 quantity\r\n    ) internal virtual {}\r\n\r\n    /**\r\n     * @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes\r\n     * minting.\r\n     * And also called after one token has been burned.\r\n     *\r\n     * startTokenId - the first token id to be transferred\r\n     * quantity - the amount to be transferred\r\n     *\r\n     * Calling conditions:\r\n     *\r\n     * - When `from` and `to` are both non-zero, `from`\u0027s `tokenId` has been\r\n     * transferred to `to`.\r\n     * - When `from` is zero, `tokenId` has been minted for `to`.\r\n     * - When `to` is zero, `tokenId` has been burned by `from`.\r\n     * - `from` and `to` are never both zero.\r\n     */\r\n    function _afterTokenTransfers(\r\n        address from,\r\n        address to,\r\n        uint256 startTokenId,\r\n        uint256 quantity\r\n    ) internal virtual {}\r\n}"},"ERC721AQueryable.sol":{"content":"// SPDX-License-Identifier: MIT\r\n// Creator: Chiru Labs\r\n\r\npragma solidity ^0.8.4;\r\n\r\nimport \u0027./ERC721A.sol\u0027;\r\n\r\nerror InvalidQueryRange();\r\n\r\n/**\r\n * @title ERC721A Queryable\r\n * @dev ERC721A subclass with convenience query functions.\r\n */\r\nabstract contract ERC721AQueryable is ERC721A {\r\n    /**\r\n     * @dev Returns the `TokenOwnership` struct at `tokenId` without reverting.\r\n     *\r\n     * If the `tokenId` is out of bounds:\r\n     *   - `addr` = `address(0)`\r\n     *   - `startTimestamp` = `0`\r\n     *   - `burned` = `false`\r\n     *\r\n     * If the `tokenId` is burned:\r\n     *   - `addr` = `\u003cAddress of owner before token was burned\u003e`\r\n     *   - `startTimestamp` = `\u003cTimestamp when token was burned\u003e`\r\n     *   - `burned = `true`\r\n     *\r\n     * Otherwise:\r\n     *   - `addr` = `\u003cAddress of owner\u003e`\r\n     *   - `startTimestamp` = `\u003cTimestamp of start of ownership\u003e`\r\n     *   - `burned = `false`\r\n     */\r\n    function explicitOwnershipOf(uint256 tokenId) public view returns (TokenOwnership memory) {\r\n        TokenOwnership memory ownership;\r\n        if (tokenId \u003c _startTokenId() || tokenId \u003e= _currentIndex) {\r\n            return ownership;\r\n        }\r\n        ownership = _ownerships[tokenId];\r\n        if (ownership.burned) {\r\n            return ownership;\r\n        }\r\n        return _ownershipOf(tokenId);\r\n    }\r\n\r\n    /**\r\n     * @dev Returns an array of `TokenOwnership` structs at `tokenIds` in order.\r\n     * See {ERC721AQueryable-explicitOwnershipOf}\r\n     */\r\n    function explicitOwnershipsOf(uint256[] memory tokenIds) external view returns (TokenOwnership[] memory) {\r\n        unchecked {\r\n            uint256 tokenIdsLength = tokenIds.length;\r\n            TokenOwnership[] memory ownerships = new TokenOwnership[](tokenIdsLength);\r\n            for (uint256 i; i != tokenIdsLength; ++i) {\r\n                ownerships[i] = explicitOwnershipOf(tokenIds[i]);\r\n            }\r\n            return ownerships;\r\n        }\r\n    }\r\n\r\n    /**\r\n     * @dev Returns an array of token IDs owned by `owner`,\r\n     * in the range [`start`, `stop`)\r\n     * (i.e. `start \u003c= tokenId \u003c stop`).\r\n     *\r\n     * This function allows for tokens to be queried if the collection\r\n     * grows too big for a single call of {ERC721AQueryable-tokensOfOwner}.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - `start` \u003c `stop`\r\n     */\r\n    function tokensOfOwnerIn(\r\n        address owner,\r\n        uint256 start,\r\n        uint256 stop\r\n    ) external view returns (uint256[] memory) {\r\n        unchecked {\r\n            if (start \u003e= stop) revert InvalidQueryRange();\r\n            uint256 tokenIdsIdx;\r\n            uint256 stopLimit = _currentIndex;\r\n            // Set `start = max(start, _startTokenId())`.\r\n            if (start \u003c _startTokenId()) {\r\n                start = _startTokenId();\r\n            }\r\n            // Set `stop = min(stop, _currentIndex)`.\r\n            if (stop \u003e stopLimit) {\r\n                stop = stopLimit;\r\n            }\r\n            uint256 tokenIdsMaxLength = balanceOf(owner);\r\n            // Set `tokenIdsMaxLength = min(balanceOf(owner), stop - start)`,\r\n            // to cater for cases where `balanceOf(owner)` is too big.\r\n            if (start \u003c stop) {\r\n                uint256 rangeLength = stop - start;\r\n                if (rangeLength \u003c tokenIdsMaxLength) {\r\n                    tokenIdsMaxLength = rangeLength;\r\n                }\r\n            } else {\r\n                tokenIdsMaxLength = 0;\r\n            }\r\n            uint256[] memory tokenIds = new uint256[](tokenIdsMaxLength);\r\n            if (tokenIdsMaxLength == 0) {\r\n                return tokenIds;\r\n            }\r\n            // We need to call `explicitOwnershipOf(start)`,\r\n            // because the slot at `start` may not be initialized.\r\n            TokenOwnership memory ownership = explicitOwnershipOf(start);\r\n            address currOwnershipAddr;\r\n            // If the starting slot exists (i.e. not burned), initialize `currOwnershipAddr`.\r\n            // `ownership.address` will not be zero, as `start` is clamped to the valid token ID range.\r\n            if (!ownership.burned) {\r\n                currOwnershipAddr = ownership.addr;\r\n            }\r\n            for (uint256 i = start; i != stop \u0026\u0026 tokenIdsIdx != tokenIdsMaxLength; ++i) {\r\n                ownership = _ownerships[i];\r\n                if (ownership.burned) {\r\n                    continue;\r\n                }\r\n                if (ownership.addr != address(0)) {\r\n                    currOwnershipAddr = ownership.addr;\r\n                }\r\n                if (currOwnershipAddr == owner) {\r\n                    tokenIds[tokenIdsIdx++] = i;\r\n                }\r\n            }\r\n            // Downsize the array to fit.\r\n            assembly {\r\n                mstore(tokenIds, tokenIdsIdx)\r\n            }\r\n            return tokenIds;\r\n        }\r\n    }\r\n\r\n    /**\r\n     * @dev Returns an array of token IDs owned by `owner`.\r\n     *\r\n     * This function scans the ownership mapping and is O(totalSupply) in complexity.\r\n     * It is meant to be called off-chain.\r\n     *\r\n     * See {ERC721AQueryable-tokensOfOwnerIn} for splitting the scan into\r\n     * multiple smaller scans if the collection is large enough to cause\r\n     * an out-of-gas error (10K pfp collections should be fine).\r\n     */\r\n    function tokensOfOwner(address owner) external view returns (uint256[] memory) {\r\n        unchecked {\r\n            uint256 tokenIdsIdx;\r\n            address currOwnershipAddr;\r\n            uint256 tokenIdsLength = balanceOf(owner);\r\n            uint256[] memory tokenIds = new uint256[](tokenIdsLength);\r\n            TokenOwnership memory ownership;\r\n            for (uint256 i = _startTokenId(); tokenIdsIdx != tokenIdsLength; ++i) {\r\n                ownership = _ownerships[i];\r\n                if (ownership.burned) {\r\n                    continue;\r\n                }\r\n                if (ownership.addr != address(0)) {\r\n                    currOwnershipAddr = ownership.addr;\r\n                }\r\n                if (currOwnershipAddr == owner) {\r\n                    tokenIds[tokenIdsIdx++] = i;\r\n                }\r\n            }\r\n            return tokenIds;\r\n        }\r\n    }\r\n}"},"IERC165.sol":{"content":"// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)\r\n\r\npragma solidity ^0.8.0;\r\n\r\n/**\r\n * @dev Interface of the ERC165 standard, as defined in the\r\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\r\n *\r\n * Implementers can declare support of contract interfaces, which can then be\r\n * queried by others ({ERC165Checker}).\r\n *\r\n * For an implementation, see {ERC165}.\r\n */\r\ninterface IERC165 {\r\n    /**\r\n     * @dev Returns true if this contract implements the interface defined by\r\n     * `interfaceId`. See the corresponding\r\n     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\r\n     * to learn more about how these ids are created.\r\n     *\r\n     * This function call must use less than 30 000 gas.\r\n     */\r\n    function supportsInterface(bytes4 interfaceId) external view returns (bool);\r\n}"},"IERC2981.sol":{"content":"// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts (last updated v4.6.0) (interfaces/IERC2981.sol)\r\n\r\npragma solidity ^0.8.0;\r\n\r\nimport \"./IERC165.sol\";\r\n\r\n/**\r\n * @dev Interface for the NFT Royalty Standard.\r\n *\r\n * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal\r\n * support for royalty payments across all NFT marketplaces and ecosystem participants.\r\n *\r\n * _Available since v4.5._\r\n */\r\ninterface IERC2981 is IERC165 {\r\n    /**\r\n     * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of\r\n     * exchange. The royalty amount is denominated and should be paid in that same unit of exchange.\r\n     */\r\n    function royaltyInfo(uint256 tokenId, uint256 salePrice)\r\n        external\r\n        view\r\n        returns (address receiver, uint256 royaltyAmount);\r\n}"},"IERC721.sol":{"content":"// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721.sol)\r\n\r\npragma solidity ^0.8.0;\r\n\r\nimport \"./IERC165.sol\";\r\n\r\n/**\r\n * @dev Required interface of an ERC721 compliant contract.\r\n */\r\ninterface IERC721 is IERC165 {\r\n    /**\r\n     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.\r\n     */\r\n    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\r\n\r\n    /**\r\n     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.\r\n     */\r\n    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\r\n\r\n    /**\r\n     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.\r\n     */\r\n    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\r\n\r\n    /**\r\n     * @dev Returns the number of tokens in ``owner``\u0027s account.\r\n     */\r\n    function balanceOf(address owner) external view returns (uint256 balance);\r\n\r\n    /**\r\n     * @dev Returns the owner of the `tokenId` token.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - `tokenId` must exist.\r\n     */\r\n    function ownerOf(uint256 tokenId) external view returns (address owner);\r\n\r\n    /**\r\n     * @dev Safely transfers `tokenId` token from `from` to `to`.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - `from` cannot be the zero address.\r\n     * - `to` cannot be the zero address.\r\n     * - `tokenId` token must exist and be owned by `from`.\r\n     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\r\n     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\r\n     *\r\n     * Emits a {Transfer} event.\r\n     */\r\n    function safeTransferFrom(\r\n        address from,\r\n        address to,\r\n        uint256 tokenId,\r\n        bytes calldata data\r\n    ) external;\r\n\r\n    /**\r\n     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\r\n     * are aware of the ERC721 protocol to prevent tokens from being forever locked.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - `from` cannot be the zero address.\r\n     * - `to` cannot be the zero address.\r\n     * - `tokenId` token must exist and be owned by `from`.\r\n     * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.\r\n     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\r\n     *\r\n     * Emits a {Transfer} event.\r\n     */\r\n    function safeTransferFrom(\r\n        address from,\r\n        address to,\r\n        uint256 tokenId\r\n    ) external;\r\n\r\n    /**\r\n     * @dev Transfers `tokenId` token from `from` to `to`.\r\n     *\r\n     * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - `from` cannot be the zero address.\r\n     * - `to` cannot be the zero address.\r\n     * - `tokenId` token must be owned by `from`.\r\n     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\r\n     *\r\n     * Emits a {Transfer} event.\r\n     */\r\n    function transferFrom(\r\n        address from,\r\n        address to,\r\n        uint256 tokenId\r\n    ) external;\r\n\r\n    /**\r\n     * @dev Gives permission to `to` to transfer `tokenId` token to another account.\r\n     * The approval is cleared when the token is transferred.\r\n     *\r\n     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - The caller must own the token or be an approved operator.\r\n     * - `tokenId` must exist.\r\n     *\r\n     * Emits an {Approval} event.\r\n     */\r\n    function approve(address to, uint256 tokenId) external;\r\n\r\n    /**\r\n     * @dev Approve or remove `operator` as an operator for the caller.\r\n     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - The `operator` cannot be the caller.\r\n     *\r\n     * Emits an {ApprovalForAll} event.\r\n     */\r\n    function setApprovalForAll(address operator, bool _approved) external;\r\n\r\n    /**\r\n     * @dev Returns the account approved for `tokenId` token.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - `tokenId` must exist.\r\n     */\r\n    function getApproved(uint256 tokenId) external view returns (address operator);\r\n\r\n    /**\r\n     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\r\n     *\r\n     * See {setApprovalForAll}\r\n     */\r\n    function isApprovedForAll(address owner, address operator) external view returns (bool);\r\n}"},"IERC721Metadata.sol":{"content":"// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)\r\n\r\npragma solidity ^0.8.0;\r\n\r\nimport \"./IERC721.sol\";\r\n\r\n/**\r\n * @title ERC-721 Non-Fungible Token Standard, optional metadata extension\r\n * @dev See https://eips.ethereum.org/EIPS/eip-721\r\n */\r\ninterface IERC721Metadata is IERC721 {\r\n    /**\r\n     * @dev Returns the token collection name.\r\n     */\r\n    function name() external view returns (string memory);\r\n\r\n    /**\r\n     * @dev Returns the token collection symbol.\r\n     */\r\n    function symbol() external view returns (string memory);\r\n\r\n    /**\r\n     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.\r\n     */\r\n    function tokenURI(uint256 tokenId) external view returns (string memory);\r\n}"},"IERC721Receiver.sol":{"content":"// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)\r\n\r\npragma solidity ^0.8.0;\r\n\r\n/**\r\n * @title ERC721 token receiver interface\r\n * @dev Interface for any contract that wants to support safeTransfers\r\n * from ERC721 asset contracts.\r\n */\r\ninterface IERC721Receiver {\r\n    /**\r\n     * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}\r\n     * by `operator` from `from`, this function is called.\r\n     *\r\n     * It must return its Solidity selector to confirm the token transfer.\r\n     * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.\r\n     *\r\n     * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.\r\n     */\r\n    function onERC721Received(\r\n        address operator,\r\n        address from,\r\n        uint256 tokenId,\r\n        bytes calldata data\r\n    ) external returns (bytes4);\r\n}"},"IOperatorFilterRegistry.sol":{"content":"// SPDX-License-Identifier: MIT\r\npragma solidity ^0.8.13;\r\n\r\ninterface IOperatorFilterRegistry {\r\n    function isOperatorAllowed(address registrant, address operator) external view returns (bool);\r\n    function register(address registrant) external;\r\n    function registerAndSubscribe(address registrant, address subscription) external;\r\n    function registerAndCopyEntries(address registrant, address registrantToCopy) external;\r\n    function unregister(address addr) external;\r\n    function updateOperator(address registrant, address operator, bool filtered) external;\r\n    function updateOperators(address registrant, address[] calldata operators, bool filtered) external;\r\n    function updateCodeHash(address registrant, bytes32 codehash, bool filtered) external;\r\n    function updateCodeHashes(address registrant, bytes32[] calldata codeHashes, bool filtered) external;\r\n    function subscribe(address registrant, address registrantToSubscribe) external;\r\n    function unsubscribe(address registrant, bool copyExistingEntries) external;\r\n    function subscriptionOf(address addr) external returns (address registrant);\r\n    function subscribers(address registrant) external returns (address[] memory);\r\n    function subscriberAt(address registrant, uint256 index) external returns (address);\r\n    function copyEntriesOf(address registrant, address registrantToCopy) external;\r\n    function isOperatorFiltered(address registrant, address operator) external returns (bool);\r\n    function isCodeHashOfFiltered(address registrant, address operatorWithCode) external returns (bool);\r\n    function isCodeHashFiltered(address registrant, bytes32 codeHash) external returns (bool);\r\n    function filteredOperators(address addr) external returns (address[] memory);\r\n    function filteredCodeHashes(address addr) external returns (bytes32[] memory);\r\n    function filteredOperatorAt(address registrant, uint256 index) external returns (address);\r\n    function filteredCodeHashAt(address registrant, uint256 index) external returns (bytes32);\r\n    function isRegistered(address addr) external returns (bool);\r\n    function codeHashOf(address addr) external returns (bytes32);\r\n}"},"MerkleProof.sol":{"content":"// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/cryptography/MerkleProof.sol)\r\n\r\npragma solidity ^0.8.0;\r\n\r\n/**\r\n * @dev These functions deal with verification of Merkle Tree proofs.\r\n *\r\n * The tree and the proofs can be generated using our\r\n * https://github.com/OpenZeppelin/merkle-tree[JavaScript library].\r\n * You will find a quickstart guide in the readme.\r\n *\r\n * WARNING: You should avoid using leaf values that are 64 bytes long prior to\r\n * hashing, or use a hash function other than keccak256 for hashing leaves.\r\n * This is because the concatenation of a sorted pair of internal nodes in\r\n * the merkle tree could be reinterpreted as a leaf value.\r\n * OpenZeppelin\u0027s JavaScript library generates merkle trees that are safe\r\n * against this attack out of the box.\r\n */\r\nlibrary MerkleProof {\r\n    /**\r\n     * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree\r\n     * defined by `root`. For this, a `proof` must be provided, containing\r\n     * sibling hashes on the branch from the leaf to the root of the tree. Each\r\n     * pair of leaves and each pair of pre-images are assumed to be sorted.\r\n     */\r\n    function verify(\r\n        bytes32[] memory proof,\r\n        bytes32 root,\r\n        bytes32 leaf\r\n    ) internal pure returns (bool) {\r\n        return processProof(proof, leaf) == root;\r\n    }\r\n\r\n    /**\r\n     * @dev Calldata version of {verify}\r\n     *\r\n     * _Available since v4.7._\r\n     */\r\n    function verifyCalldata(\r\n        bytes32[] calldata proof,\r\n        bytes32 root,\r\n        bytes32 leaf\r\n    ) internal pure returns (bool) {\r\n        return processProofCalldata(proof, leaf) == root;\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the rebuilt hash obtained by traversing a Merkle tree up\r\n     * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt\r\n     * hash matches the root of the tree. When processing the proof, the pairs\r\n     * of leafs \u0026 pre-images are assumed to be sorted.\r\n     *\r\n     * _Available since v4.4._\r\n     */\r\n    function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) {\r\n        bytes32 computedHash = leaf;\r\n        for (uint256 i = 0; i \u003c proof.length; i++) {\r\n            computedHash = _hashPair(computedHash, proof[i]);\r\n        }\r\n        return computedHash;\r\n    }\r\n\r\n    /**\r\n     * @dev Calldata version of {processProof}\r\n     *\r\n     * _Available since v4.7._\r\n     */\r\n    function processProofCalldata(bytes32[] calldata proof, bytes32 leaf) internal pure returns (bytes32) {\r\n        bytes32 computedHash = leaf;\r\n        for (uint256 i = 0; i \u003c proof.length; i++) {\r\n            computedHash = _hashPair(computedHash, proof[i]);\r\n        }\r\n        return computedHash;\r\n    }\r\n\r\n    /**\r\n     * @dev Returns true if the `leaves` can be simultaneously proven to be a part of a merkle tree defined by\r\n     * `root`, according to `proof` and `proofFlags` as described in {processMultiProof}.\r\n     *\r\n     * CAUTION: Not all merkle trees admit multiproofs. See {processMultiProof} for details.\r\n     *\r\n     * _Available since v4.7._\r\n     */\r\n    function multiProofVerify(\r\n        bytes32[] memory proof,\r\n        bool[] memory proofFlags,\r\n        bytes32 root,\r\n        bytes32[] memory leaves\r\n    ) internal pure returns (bool) {\r\n        return processMultiProof(proof, proofFlags, leaves) == root;\r\n    }\r\n\r\n    /**\r\n     * @dev Calldata version of {multiProofVerify}\r\n     *\r\n     * CAUTION: Not all merkle trees admit multiproofs. See {processMultiProof} for details.\r\n     *\r\n     * _Available since v4.7._\r\n     */\r\n    function multiProofVerifyCalldata(\r\n        bytes32[] calldata proof,\r\n        bool[] calldata proofFlags,\r\n        bytes32 root,\r\n        bytes32[] memory leaves\r\n    ) internal pure returns (bool) {\r\n        return processMultiProofCalldata(proof, proofFlags, leaves) == root;\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the root of a tree reconstructed from `leaves` and sibling nodes in `proof`. The reconstruction\r\n     * proceeds by incrementally reconstructing all inner nodes by combining a leaf/inner node with either another\r\n     * leaf/inner node or a proof sibling node, depending on whether each `proofFlags` item is true or false\r\n     * respectively.\r\n     *\r\n     * CAUTION: Not all merkle trees admit multiproofs. To use multiproofs, it is sufficient to ensure that: 1) the tree\r\n     * is complete (but not necessarily perfect), 2) the leaves to be proven are in the opposite order they are in the\r\n     * tree (i.e., as seen from right to left starting at the deepest layer and continuing at the next layer).\r\n     *\r\n     * _Available since v4.7._\r\n     */\r\n    function processMultiProof(\r\n        bytes32[] memory proof,\r\n        bool[] memory proofFlags,\r\n        bytes32[] memory leaves\r\n    ) internal pure returns (bytes32 merkleRoot) {\r\n        // This function rebuilds the root hash by traversing the tree up from the leaves. The root is rebuilt by\r\n        // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the\r\n        // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of\r\n        // the merkle tree.\r\n        uint256 leavesLen = leaves.length;\r\n        uint256 totalHashes = proofFlags.length;\r\n\r\n        // Check proof validity.\r\n        require(leavesLen + proof.length - 1 == totalHashes, \"MerkleProof: invalid multiproof\");\r\n\r\n        // The xxxPos values are \"pointers\" to the next value to consume in each array. All accesses are done using\r\n        // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue\u0027s \"pop\".\r\n        bytes32[] memory hashes = new bytes32[](totalHashes);\r\n        uint256 leafPos = 0;\r\n        uint256 hashPos = 0;\r\n        uint256 proofPos = 0;\r\n        // At each step, we compute the next hash using two values:\r\n        // - a value from the \"main queue\". If not all leaves have been consumed, we get the next leaf, otherwise we\r\n        //   get the next hash.\r\n        // - depending on the flag, either another value for the \"main queue\" (merging branches) or an element from the\r\n        //   `proof` array.\r\n        for (uint256 i = 0; i \u003c totalHashes; i++) {\r\n            bytes32 a = leafPos \u003c leavesLen ? leaves[leafPos++] : hashes[hashPos++];\r\n            bytes32 b = proofFlags[i]\r\n                ? (leafPos \u003c leavesLen ? leaves[leafPos++] : hashes[hashPos++])\r\n                : proof[proofPos++];\r\n            hashes[i] = _hashPair(a, b);\r\n        }\r\n\r\n        if (totalHashes \u003e 0) {\r\n            return hashes[totalHashes - 1];\r\n        } else if (leavesLen \u003e 0) {\r\n            return leaves[0];\r\n        } else {\r\n            return proof[0];\r\n        }\r\n    }\r\n\r\n    /**\r\n     * @dev Calldata version of {processMultiProof}.\r\n     *\r\n     * CAUTION: Not all merkle trees admit multiproofs. See {processMultiProof} for details.\r\n     *\r\n     * _Available since v4.7._\r\n     */\r\n    function processMultiProofCalldata(\r\n        bytes32[] calldata proof,\r\n        bool[] calldata proofFlags,\r\n        bytes32[] memory leaves\r\n    ) internal pure returns (bytes32 merkleRoot) {\r\n        // This function rebuilds the root hash by traversing the tree up from the leaves. The root is rebuilt by\r\n        // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the\r\n        // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of\r\n        // the merkle tree.\r\n        uint256 leavesLen = leaves.length;\r\n        uint256 totalHashes = proofFlags.length;\r\n\r\n        // Check proof validity.\r\n        require(leavesLen + proof.length - 1 == totalHashes, \"MerkleProof: invalid multiproof\");\r\n\r\n        // The xxxPos values are \"pointers\" to the next value to consume in each array. All accesses are done using\r\n        // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue\u0027s \"pop\".\r\n        bytes32[] memory hashes = new bytes32[](totalHashes);\r\n        uint256 leafPos = 0;\r\n        uint256 hashPos = 0;\r\n        uint256 proofPos = 0;\r\n        // At each step, we compute the next hash using two values:\r\n        // - a value from the \"main queue\". If not all leaves have been consumed, we get the next leaf, otherwise we\r\n        //   get the next hash.\r\n        // - depending on the flag, either another value for the \"main queue\" (merging branches) or an element from the\r\n        //   `proof` array.\r\n        for (uint256 i = 0; i \u003c totalHashes; i++) {\r\n            bytes32 a = leafPos \u003c leavesLen ? leaves[leafPos++] : hashes[hashPos++];\r\n            bytes32 b = proofFlags[i]\r\n                ? (leafPos \u003c leavesLen ? leaves[leafPos++] : hashes[hashPos++])\r\n                : proof[proofPos++];\r\n            hashes[i] = _hashPair(a, b);\r\n        }\r\n\r\n        if (totalHashes \u003e 0) {\r\n            return hashes[totalHashes - 1];\r\n        } else if (leavesLen \u003e 0) {\r\n            return leaves[0];\r\n        } else {\r\n            return proof[0];\r\n        }\r\n    }\r\n\r\n    function _hashPair(bytes32 a, bytes32 b) private pure returns (bytes32) {\r\n        return a \u003c b ? _efficientHash(a, b) : _efficientHash(b, a);\r\n    }\r\n\r\n    function _efficientHash(bytes32 a, bytes32 b) private pure returns (bytes32 value) {\r\n        /// @solidity memory-safe-assembly\r\n        assembly {\r\n            mstore(0x00, a)\r\n            mstore(0x20, b)\r\n            value := keccak256(0x00, 0x40)\r\n        }\r\n    }\r\n}"},"OperatorFilterer.sol":{"content":"// SPDX-License-Identifier: MIT\r\npragma solidity ^0.8.13;\r\n\r\nimport \"./IOperatorFilterRegistry.sol\";\r\n\r\n/**\r\n * @title  OperatorFilterer\r\n * @notice Abstract contract whose constructor automatically registers and optionally subscribes to or copies another\r\n *         registrant\u0027s entries in the OperatorFilterRegistry.\r\n * @dev    This smart contract is meant to be inherited by token contracts so they can use the following:\r\n *         - `onlyAllowedOperator` modifier for `transferFrom` and `safeTransferFrom` methods.\r\n *         - `onlyAllowedOperatorApproval` modifier for `approve` and `setApprovalForAll` methods.\r\n */\r\nabstract contract OperatorFilterer {\r\n    error OperatorNotAllowed(address operator);\r\n\r\n    IOperatorFilterRegistry public constant OPERATOR_FILTER_REGISTRY =\r\n        IOperatorFilterRegistry(0x000000000000AAeB6D7670E522A718067333cd4E);\r\n\r\n    constructor(address subscriptionOrRegistrantToCopy, bool subscribe) {\r\n        // If an inheriting token contract is deployed to a network without the registry deployed, the modifier\r\n        // will not revert, but the contract will need to be registered with the registry once it is deployed in\r\n        // order for the modifier to filter addresses.\r\n        if (address(OPERATOR_FILTER_REGISTRY).code.length \u003e 0) {\r\n            if (subscribe) {\r\n                OPERATOR_FILTER_REGISTRY.registerAndSubscribe(address(this), subscriptionOrRegistrantToCopy);\r\n            } else {\r\n                if (subscriptionOrRegistrantToCopy != address(0)) {\r\n                    OPERATOR_FILTER_REGISTRY.registerAndCopyEntries(address(this), subscriptionOrRegistrantToCopy);\r\n                } else {\r\n                    OPERATOR_FILTER_REGISTRY.register(address(this));\r\n                }\r\n            }\r\n        }\r\n    }\r\n\r\n    modifier onlyAllowedOperator(address from) virtual {\r\n        // Allow spending tokens from addresses with balance\r\n        // Note that this still allows listings and marketplaces with escrow to transfer tokens if transferred\r\n        // from an EOA.\r\n        if (from != msg.sender) {\r\n            _checkFilterOperator(msg.sender);\r\n        }\r\n        _;\r\n    }\r\n\r\n    modifier onlyAllowedOperatorApproval(address operator) virtual {\r\n        _checkFilterOperator(operator);\r\n        _;\r\n    }\r\n\r\n    function _checkFilterOperator(address operator) internal view virtual {\r\n        // Check registry code length to facilitate testing in environments without a deployed registry.\r\n        if (address(OPERATOR_FILTER_REGISTRY).code.length \u003e 0) {\r\n            if (!OPERATOR_FILTER_REGISTRY.isOperatorAllowed(address(this), operator)) {\r\n                revert OperatorNotAllowed(operator);\r\n            }\r\n        }\r\n    }\r\n}"},"Ownable.sol":{"content":"// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)\r\n\r\npragma solidity ^0.8.0;\r\n\r\nimport \"./Context.sol\";\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 * By default, the owner account will be the one that deploys the contract. This\r\n * can 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 is Context {\r\n    address private _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 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 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 called by any account other than the owner.\r\n     */\r\n    modifier onlyOwner() {\r\n        require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\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 anymore. 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 removing 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        require(newOwner != address(0), \"Ownable: new owner is the zero address\");\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}"},"ReentrancyGuard.sol":{"content":"// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol)\r\n\r\npragma solidity ^0.8.0;\r\n\r\n/**\r\n * @dev Contract module that helps prevent reentrant calls to a function.\r\n *\r\n * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier\r\n * available, which can be applied to functions to make sure there are no nested\r\n * (reentrant) calls to them.\r\n *\r\n * Note that because there is a single `nonReentrant` guard, functions marked as\r\n * `nonReentrant` may not call one another. This can be worked around by making\r\n * those functions `private`, and then adding `external` `nonReentrant` entry\r\n * points to them.\r\n *\r\n * TIP: If you would like to learn more about reentrancy and alternative ways\r\n * to protect against it, check out our blog post\r\n * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].\r\n */\r\nabstract contract ReentrancyGuard {\r\n    // Booleans are more expensive than uint256 or any type that takes up a full\r\n    // word because each write operation emits an extra SLOAD to first read the\r\n    // slot\u0027s contents, replace the bits taken up by the boolean, and then write\r\n    // back. This is the compiler\u0027s defense against contract upgrades and\r\n    // pointer aliasing, and it cannot be disabled.\r\n\r\n    // The values being non-zero value makes deployment a bit more expensive,\r\n    // but in exchange the refund on every call to nonReentrant will be lower in\r\n    // amount. Since refunds are capped to a percentage of the total\r\n    // transaction\u0027s gas, it is best to keep them low in cases like this one, to\r\n    // increase the likelihood of the full refund coming into effect.\r\n    uint256 private constant _NOT_ENTERED = 1;\r\n    uint256 private constant _ENTERED = 2;\r\n\r\n    uint256 private _status;\r\n\r\n    constructor() {\r\n        _status = _NOT_ENTERED;\r\n    }\r\n\r\n    /**\r\n     * @dev Prevents a contract from calling itself, directly or indirectly.\r\n     * Calling a `nonReentrant` function from another `nonReentrant`\r\n     * function is not supported. It is possible to prevent this from happening\r\n     * by making the `nonReentrant` function external, and making it call a\r\n     * `private` function that does the actual work.\r\n     */\r\n    modifier nonReentrant() {\r\n        // On the first call to nonReentrant, _notEntered will be true\r\n        require(_status != _ENTERED, \"ReentrancyGuard: reentrant call\");\r\n\r\n        // Any calls to nonReentrant after this point will fail\r\n        _status = _ENTERED;\r\n\r\n        _;\r\n\r\n        // By storing the original value once again, a refund is triggered (see\r\n        // https://eips.ethereum.org/EIPS/eip-2200)\r\n        _status = _NOT_ENTERED;\r\n    }\r\n}"},"SoulSailS1Flag.sol":{"content":"// SPDX-License-Identifier: MIT\r\npragma solidity ^0.8.4;\r\n\r\nimport \"./Strings.sol\";\r\nimport \"./Ownable.sol\";\r\nimport \"./ERC2981.sol\";\r\nimport \"./Address.sol\";\r\nimport \"./ECDSA.sol\";\r\nimport \"./ERC721A.sol\";\r\nimport \"./DefaultOperatorFilterer.sol\";\r\nimport \"./ReentrancyGuard.sol\";\r\nimport \"./MerkleProof.sol\";\r\nimport \"./ERC721AQueryable.sol\";\r\n\r\nerror ErrorContractMintDenied();\r\nerror ErrorNotWhiteListed();\r\nerror ErrorPulicSaleNotStarted();\r\nerror ErrorWlSaleNotStarted();\r\nerror ErrorWlSalePeriodOver();\r\nerror ErrorInsufficientFund();\r\nerror ErrorExceedTransactionLimit();\r\nerror ErrorExceedWalletLimit();\r\nerror ErrorExceedMaxSupply();\r\n\r\ncontract SoulSailS1Flag is ERC2981, ERC721A, ERC721AQueryable, Ownable, ReentrancyGuard, DefaultOperatorFilterer {\r\n    using MerkleProof for bytes32[];\r\n    using Address for address payable;\r\n    using ECDSA for bytes32;\r\n    using Strings for uint256;\r\n    \r\n    uint256 public _wlMintPrice = 0 ether;\r\n    uint256 public _wlWalletLimit = 1;\r\n    uint256 public _wlMintStartTime;\r\n\r\n    uint256 public _mintPrice = 0 ether;\r\n    uint256 public  _txLimit = 1;\r\n    uint256 public  _walletLimit = 1;\r\n    uint256 public _mintStartTime;\r\n\r\n    uint256 public  _maxSupply = 1500;\r\n    \r\n    uint256 public _wlMintTimeRange = 10800;\r\n\r\n    bool public _publicStarted = false;\r\n    bool public _wlStarted = false;\r\n    bool public _revealed = false;\r\n    string public _metadataURI = \"\";\r\n    string public _hiddenMetadataUri;\r\n    bytes32 public _merkleRoot;\r\n    \r\n    mapping (address =\u003e uint256) public walletMinted;\r\n\r\n    constructor() ERC721A(\"Soul Sail S1-Flag\", \"SSF\") {\r\n        _setDefaultRoyalty(owner(), 500);\r\n    }\r\n    \r\n    function wlMint(bytes32[] calldata signature) external payable {\r\n        if (tx.origin != msg.sender) revert ErrorContractMintDenied();\r\n        if (!_wlStarted) revert ErrorWlSaleNotStarted();\r\n        if (block.timestamp \u003c _wlMintStartTime) revert ErrorWlSaleNotStarted();\r\n        if (block.timestamp \u003e _wlMintStartTime + _wlMintTimeRange)  revert ErrorWlSalePeriodOver();\r\n        if (_wlWalletLimit + _totalMinted() \u003e _maxSupply) revert ErrorExceedMaxSupply();\r\n        if (!isWhitelisted(msg.sender, signature)) revert ErrorNotWhiteListed();\r\n\r\n        uint256 userMinted = walletMinted[msg.sender];\r\n        if (userMinted \u003e= _wlWalletLimit) revert ErrorExceedWalletLimit();\r\n        \r\n        _safeMint(msg.sender, _wlWalletLimit);\r\n        walletMinted[msg.sender] += _wlWalletLimit;\r\n        \r\n    }\r\n\r\n    function pulicMint(uint256 amount) external payable {\r\n        if (tx.origin != msg.sender) revert ErrorContractMintDenied();\r\n        if (!_publicStarted) revert ErrorPulicSaleNotStarted();\r\n        if (block.timestamp \u003c _mintStartTime) revert ErrorPulicSaleNotStarted();\r\n        if (amount + _totalMinted() \u003e _maxSupply) revert ErrorExceedMaxSupply();\r\n        if (amount \u003e _txLimit) revert ErrorExceedTransactionLimit();\r\n        \r\n        uint256 requiredValue = amount * _mintPrice;\r\n        uint256 userMinted = walletMinted[msg.sender];\r\n        if (userMinted \u003e= _walletLimit) revert ErrorExceedWalletLimit();\r\n        if (userMinted + amount \u003e _walletLimit) revert ErrorExceedWalletLimit();\r\n        if (msg.value \u003c requiredValue) revert ErrorInsufficientFund();\r\n        \r\n        _safeMint(msg.sender, amount);\r\n        walletMinted[msg.sender] += amount;\r\n        \r\n    }\r\n    \r\n    function devMint(address to, uint256 amount) external onlyOwner {\r\n        if (amount + _totalMinted() \u003e _maxSupply) revert ErrorExceedMaxSupply();\r\n        _safeMint(to, amount);\r\n    }\r\n    \r\n    struct State {\r\n        uint256 wlMintPrice;\r\n        uint256 wlWalletLimit;\r\n        uint256 mintPrice;\r\n        uint256 txLimit;\r\n        uint256 walletLimit;\r\n        uint256 maxSupply;\r\n        uint256 totalMinted;\r\n        bool revealed;\r\n        bool publicStarted;\r\n        bool wlStarted; \r\n        uint256 mintStartTime;\r\n        uint256 wlMintStartTime;\r\n        uint256 wlMintTimeRange;\r\n    }\r\n\r\n    function _state() external view returns (State memory) {\r\n        return\r\n            State({\r\n                wlMintPrice: _wlMintPrice,\r\n                wlWalletLimit: _wlWalletLimit,\r\n                mintPrice: _mintPrice,\r\n                txLimit: _txLimit,\r\n                walletLimit: _walletLimit,\r\n                maxSupply: _maxSupply,\r\n                totalMinted: uint256(ERC721A._totalMinted()),\r\n                revealed: _revealed,\r\n                publicStarted: _publicStarted,\r\n                wlStarted: _wlStarted,\r\n                mintStartTime: _mintStartTime,\r\n                wlMintStartTime: _wlMintStartTime,\r\n                wlMintTimeRange: _wlMintTimeRange\r\n            });\r\n    }\r\n\r\n    function isWhitelisted(address addr, bytes32[] calldata signature) public view returns (bool) {\r\n        bytes32 leaf = keccak256(abi.encodePacked(addr));\r\n        return MerkleProof.verify(signature, _merkleRoot, leaf);\r\n    }\r\n    \r\n    function setMerkleRoot(bytes32 merkleRoot) external onlyOwner {\r\n        _merkleRoot = merkleRoot;\r\n    }\r\n\r\n    function _startTokenId() internal view virtual override returns (uint256) {\r\n        return 1;\r\n    } \r\n\r\n    function setWlMintTimeRange(uint256 wlMintTimeRange) public onlyOwner {\r\n        _wlMintTimeRange = wlMintTimeRange;\r\n    }\r\n\r\n    function setMintStartTime(uint256 mintStartTime) public onlyOwner {\r\n        _mintStartTime = mintStartTime;\r\n    }\r\n    \r\n    function setWlMintStartTime(uint256 wlMintStartTime) public onlyOwner {\r\n        _wlMintStartTime = wlMintStartTime;\r\n    }\r\n\r\n    function setWlWalletLimit(uint256 wlWalletLimit) public onlyOwner {\r\n        _wlWalletLimit = wlWalletLimit;\r\n    } \r\n    \r\n    function setWlMintPrice(uint256 wlMintPrice) public onlyOwner {\r\n        _wlMintPrice = wlMintPrice;\r\n    }\r\n\r\n    function setTxLimit(uint256 txLimit) public onlyOwner {\r\n        _txLimit = txLimit;\r\n    }\r\n    \r\n    function setWalletLimit(uint256 walletLimit) public onlyOwner {\r\n        _walletLimit = walletLimit;\r\n    } \r\n\r\n    function setMintPrice(uint256 mintPrice) public onlyOwner {\r\n        _mintPrice = mintPrice;\r\n    }\r\n    \r\n    function setMaxSupply(uint256 maxSupply) public onlyOwner {\r\n        _maxSupply = maxSupply;\r\n    } \r\n\r\n    function setRevealed(bool revealed) public onlyOwner {\r\n        _revealed = revealed;\r\n    }\r\n \r\n    function setPublicStarted(bool publicStarted) external onlyOwner {\r\n        _publicStarted = publicStarted;\r\n    }\r\n    \r\n    function setWlStarted(bool wlStarted) external onlyOwner {\r\n        _wlStarted = wlStarted;\r\n    }\r\n\r\n    function setMetadataURI(string memory uri) external onlyOwner {\r\n        _metadataURI = uri;\r\n    }\r\n\r\n    function setHiddenMetadataUri(string memory hiddenMetadataUri) public onlyOwner {\r\n        _hiddenMetadataUri = hiddenMetadataUri;\r\n    }\r\n    \r\n    function setFeeNumerator(uint96 feeNumerator) external onlyOwner {\r\n        _setDefaultRoyalty(owner(), feeNumerator);\r\n    }\r\n\r\n    function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {\r\n        if (!_exists(tokenId)) revert URIQueryForNonexistentToken();\r\n\r\n        if (_revealed == false) {\r\n            return _hiddenMetadataUri;\r\n        }\r\n\r\n        string memory baseURI = _metadataURI;\r\n        return string(abi.encodePacked(baseURI, tokenId.toString(), \".json\"));\r\n    }\r\n\r\n    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC2981, ERC721A) returns (bool) {\r\n        return\r\n            interfaceId == type(IERC2981).interfaceId ||\r\n            interfaceId == type(IERC721).interfaceId ||\r\n            super.supportsInterface(interfaceId);\r\n    } \r\n  \r\n    function withdraw() external onlyOwner nonReentrant{\r\n        payable(msg.sender).sendValue(address(this).balance);\r\n    }\r\n\t\r\n\tfunction setApprovalForAll(address operator, bool approved) public override onlyAllowedOperatorApproval(operator) {\r\n\t\tsuper.setApprovalForAll(operator, approved);\r\n\t}\r\n\r\n\tfunction approve(address operator, uint256 tokenId) public override onlyAllowedOperatorApproval(operator) {\r\n\t\tsuper.approve(operator, tokenId);\r\n\t}\r\n\r\n\tfunction transferFrom(address from, address to, uint256 tokenId) public override onlyAllowedOperator(from) {\r\n\t\tsuper.transferFrom(from, to, tokenId);\r\n\t}\r\n\r\n\tfunction safeTransferFrom(address from, address to, uint256 tokenId) public override onlyAllowedOperator(from) {\r\n\t\tsuper.safeTransferFrom(from, to, tokenId);\r\n\t}\r\n\r\n\tfunction safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data)\r\n      public\r\n      override\r\n      onlyAllowedOperator(from)\r\n\t{\r\n\t\tsuper.safeTransferFrom(from, to, tokenId, data);\r\n\t}\r\n  \r\n}"},"Strings.sol":{"content":"// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts v4.4.1 (utils/Strings.sol)\r\n\r\npragma solidity ^0.8.0;\r\n\r\n/**\r\n * @dev String operations.\r\n */\r\nlibrary Strings {\r\n    bytes16 private constant _HEX_SYMBOLS = \"0123456789abcdef\";\r\n\r\n    /**\r\n     * @dev Converts a `uint256` to its ASCII `string` decimal representation.\r\n     */\r\n    function toString(uint256 value) internal pure returns (string memory) {\r\n        // Inspired by OraclizeAPI\u0027s implementation - MIT licence\r\n        // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol\r\n\r\n        if (value == 0) {\r\n            return \"0\";\r\n        }\r\n        uint256 temp = value;\r\n        uint256 digits;\r\n        while (temp != 0) {\r\n            digits++;\r\n            temp /= 10;\r\n        }\r\n        bytes memory buffer = new bytes(digits);\r\n        while (value != 0) {\r\n            digits -= 1;\r\n            buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));\r\n            value /= 10;\r\n        }\r\n        return string(buffer);\r\n    }\r\n\r\n    /**\r\n     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.\r\n     */\r\n    function toHexString(uint256 value) internal pure returns (string memory) {\r\n        if (value == 0) {\r\n            return \"0x00\";\r\n        }\r\n        uint256 temp = value;\r\n        uint256 length = 0;\r\n        while (temp != 0) {\r\n            length++;\r\n            temp \u003e\u003e= 8;\r\n        }\r\n        return toHexString(value, length);\r\n    }\r\n\r\n    /**\r\n     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.\r\n     */\r\n    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {\r\n        bytes memory buffer = new bytes(2 * length + 2);\r\n        buffer[0] = \"0\";\r\n        buffer[1] = \"x\";\r\n        for (uint256 i = 2 * length + 1; i \u003e 1; --i) {\r\n            buffer[i] = _HEX_SYMBOLS[value \u0026 0xf];\r\n            value \u003e\u003e= 4;\r\n        }\r\n        require(value == 0, \"Strings: hex length insufficient\");\r\n        return string(buffer);\r\n    }\r\n}"}}