{
  "language": "Solidity",
  "sources": {
    "MiniMansions.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.17;\nimport \"erc721a/contracts/ERC721A.sol\";\nimport \"erc721a/contracts/extensions/ERC721AQueryable.sol\";\nimport \"erc721a/contracts/extensions/ERC4907A.sol\";\nimport \"@openzeppelin/contracts/access/Ownable.sol\";\nimport \"@openzeppelin/contracts/security/Pausable.sol\";\nimport \"@openzeppelin/contracts/security/ReentrancyGuard.sol\";\nimport \"@openzeppelin/contracts/token/common/ERC2981.sol\";\n\n/**\n * @author Created with HeyMint Launchpad https://launchpad.heymint.xyz\n * @notice This contract handles minting Mini-Mansions tokens.\n */\ncontract MiniMansions is\n    ERC721A,\n    ERC721AQueryable,\n    ERC4907A,\n    Ownable,\n    Pausable,\n    ReentrancyGuard,\n    ERC2981\n{\n    // Address of the smart contract used to check if an operator address is from a blocklisted exchange\n    address public blocklistContractAddress;\n    address public royaltyAddress = 0x57557C8e4095362262CC95D67012331133dB7c3B;\n    address[] public payoutAddresses = [\n        0x57557C8e4095362262CC95D67012331133dB7c3B\n    ];\n    // Permanently disable the blocklist so all exchanges are allowed\n    bool public blocklistPermanentlyDisabled;\n    bool public isPublicSaleActive;\n    // Permanently freezes metadata so it can never be changed\n    bool public metadataFrozen;\n    // If true, payout addresses and basis points are permanently frozen and can never be updated\n    bool public payoutAddressesFrozen;\n    // If true, the exchange represented by a uint256 integer is blocklisted and cannot be used to transfer tokens\n    mapping(uint256 => bool) public isExchangeBlocklisted;\n    string public baseTokenURI =\n        \"ipfs://bafybeigggpoonryznlj3gra76ed3oeywxv5qhux6g3z2davfu54gax7fai/\";\n    // Maximum supply of tokens that can be minted\n    uint256 public MAX_SUPPLY = 333;\n    uint256 public publicMintsAllowedPerAddress = 4;\n    uint256 public publicMintsAllowedPerTransaction = 333;\n    uint256 public publicPrice = 0.003 ether;\n    // The respective share of funds to be sent to each address in payoutAddresses in basis points\n    uint256[] public payoutBasisPoints = [10000];\n    uint96 public royaltyFee = 500;\n\n    constructor(address _blocklistContractAddress)\n        ERC721A(\"Mini-Mansions\", \"MINI-MANSIONS\")\n    {\n        blocklistContractAddress = _blocklistContractAddress;\n        _setDefaultRoyalty(royaltyAddress, royaltyFee);\n        require(\n            payoutAddresses.length == payoutBasisPoints.length,\n            \"PAYOUT_ARRAYS_NOT_SAME_LENGTH\"\n        );\n        uint256 totalPayoutBasisPoints = 0;\n        for (uint256 i = 0; i < payoutBasisPoints.length; i++) {\n            totalPayoutBasisPoints += payoutBasisPoints[i];\n        }\n        require(\n            totalPayoutBasisPoints == 10000,\n            \"TOTAL_BASIS_POINTS_MUST_BE_10000\"\n        );\n        isExchangeBlocklisted[2] = true;\n    }\n\n    modifier originalUser() {\n        require(tx.origin == msg.sender, \"CANNOT_CALL_FROM_CONTRACT\");\n        _;\n    }\n\n    function _baseURI() internal view virtual override returns (string memory) {\n        return baseTokenURI;\n    }\n\n    /**\n     * @dev Overrides the default ERC721A _startTokenId() so tokens begin at 1 instead of 0\n     */\n    function _startTokenId() internal view virtual override returns (uint256) {\n        return 1;\n    }\n\n    /**\n     * @notice Change the royalty fee for the collection\n     */\n    function setRoyaltyFee(uint96 _feeNumerator) external onlyOwner {\n        royaltyFee = _feeNumerator;\n        _setDefaultRoyalty(royaltyAddress, royaltyFee);\n    }\n\n    /**\n     * @notice Change the royalty address where royalty payouts are sent\n     */\n    function setRoyaltyAddress(address _royaltyAddress) external onlyOwner {\n        royaltyAddress = _royaltyAddress;\n        _setDefaultRoyalty(royaltyAddress, royaltyFee);\n    }\n\n    /**\n     * @notice Wraps and exposes publicly _numberMinted() from ERC721A\n     */\n    function numberMinted(address owner) public view returns (uint256) {\n        return _numberMinted(owner);\n    }\n\n    /**\n     * @notice Update the base token URI\n     */\n    function setBaseURI(string calldata _newBaseURI) external onlyOwner {\n        require(!metadataFrozen, \"METADATA_HAS_BEEN_FROZEN\");\n        baseTokenURI = _newBaseURI;\n    }\n\n    /**\n     * @notice Reduce the max supply of tokens\n     * @param _newMaxSupply The new maximum supply of tokens available to mint\n     */\n    function reduceMaxSupply(uint256 _newMaxSupply) external onlyOwner {\n        require(_newMaxSupply < MAX_SUPPLY, \"NEW_MAX_SUPPLY_TOO_HIGH\");\n        require(\n            _newMaxSupply >= totalSupply(),\n            \"SUPPLY_LOWER_THAN_MINTED_TOKENS\"\n        );\n        MAX_SUPPLY = _newMaxSupply;\n    }\n\n    /**\n     * @notice Freeze metadata so it can never be changed again\n     */\n    function freezeMetadata() external onlyOwner {\n        require(!metadataFrozen, \"METADATA_HAS_ALREADY_BEEN_FROZEN\");\n        metadataFrozen = true;\n    }\n\n    function pause() external onlyOwner {\n        _pause();\n    }\n\n    function unpause() external onlyOwner {\n        _unpause();\n    }\n\n    // https://chiru-labs.github.io/ERC721A/#/migration?id=supportsinterface\n    function supportsInterface(bytes4 interfaceId)\n        public\n        view\n        virtual\n        override(ERC721A, IERC721A, ERC2981, ERC4907A)\n        returns (bool)\n    {\n        // Supports the following interfaceIds:\n        // - IERC165: 0x01ffc9a7\n        // - IERC721: 0x80ac58cd\n        // - IERC721Metadata: 0x5b5e139f\n        // - IERC2981: 0x2a55205a\n        // - IERC4907: 0xad092b5c\n        return\n            ERC721A.supportsInterface(interfaceId) ||\n            ERC2981.supportsInterface(interfaceId) ||\n            ERC4907A.supportsInterface(interfaceId);\n    }\n\n    /**\n     * @notice Allow owner to send 'mintNumber' tokens without cost to multiple addresses\n     */\n    function gift(address[] calldata receivers, uint256[] calldata mintNumber)\n        external\n        onlyOwner\n    {\n        require(\n            receivers.length == mintNumber.length,\n            \"ARRAYS_MUST_BE_SAME_LENGTH\"\n        );\n        uint256 totalMint = 0;\n        for (uint256 i = 0; i < mintNumber.length; i++) {\n            totalMint += mintNumber[i];\n        }\n        require(totalSupply() + totalMint <= MAX_SUPPLY, \"MINT_TOO_LARGE\");\n        for (uint256 i = 0; i < receivers.length; i++) {\n            _safeMint(receivers[i], mintNumber[i]);\n        }\n    }\n\n    /**\n     * @notice To be updated by contract owner to allow public sale minting\n     */\n    function setPublicSaleState(bool _saleActiveState) external onlyOwner {\n        require(\n            isPublicSaleActive != _saleActiveState,\n            \"NEW_STATE_IDENTICAL_TO_OLD_STATE\"\n        );\n        isPublicSaleActive = _saleActiveState;\n    }\n\n    /**\n     * @notice Update the public mint price\n     */\n    function setPublicPrice(uint256 _publicPrice) external onlyOwner {\n        publicPrice = _publicPrice;\n    }\n\n    /**\n     * @notice Set the maximum mints allowed per a given address in the public sale\n     */\n    function setPublicMintsAllowedPerAddress(uint256 _mintsAllowed)\n        external\n        onlyOwner\n    {\n        publicMintsAllowedPerAddress = _mintsAllowed;\n    }\n\n    /**\n     * @notice Set the maximum public mints allowed per a given transaction\n     */\n    function setPublicMintsAllowedPerTransaction(uint256 _mintsAllowed)\n        external\n        onlyOwner\n    {\n        publicMintsAllowedPerTransaction = _mintsAllowed;\n    }\n\n    /**\n     * @notice Allow for public minting of tokens\n     */\n    function mint(uint256 numTokens)\n        external\n        payable\n        nonReentrant\n        originalUser\n    {\n        require(isPublicSaleActive, \"PUBLIC_SALE_IS_NOT_ACTIVE\");\n\n        require(\n            numTokens <= publicMintsAllowedPerTransaction,\n            \"MAX_MINTS_PER_TX_EXCEEDED\"\n        );\n        require(\n            _numberMinted(msg.sender) + numTokens <=\n                publicMintsAllowedPerAddress,\n            \"MAX_MINTS_EXCEEDED\"\n        );\n        require(totalSupply() + numTokens <= MAX_SUPPLY, \"MAX_SUPPLY_EXCEEDED\");\n        require(msg.value == publicPrice * numTokens, \"PAYMENT_INCORRECT\");\n\n        _safeMint(msg.sender, numTokens);\n\n        if (totalSupply() >= MAX_SUPPLY) {\n            isPublicSaleActive = false;\n        }\n    }\n\n    /**\n     * @notice Freeze all payout addresses and percentages so they can never be changed again\n     */\n    function freezePayoutAddresses() external onlyOwner {\n        require(!payoutAddressesFrozen, \"PAYOUT_ADDRESSES_ALREADY_FROZEN\");\n        payoutAddressesFrozen = true;\n    }\n\n    /**\n     * @notice Update payout addresses and basis points for each addresses' respective share of contract funds\n     */\n    function updatePayoutAddressesAndBasisPoints(\n        address[] calldata _payoutAddresses,\n        uint256[] calldata _payoutBasisPoints\n    ) external onlyOwner {\n        require(!payoutAddressesFrozen, \"PAYOUT_ADDRESSES_FROZEN\");\n        require(\n            _payoutAddresses.length == _payoutBasisPoints.length,\n            \"ARRAY_LENGTHS_MUST_MATCH\"\n        );\n        uint256 totalBasisPoints = 0;\n        for (uint256 i = 0; i < _payoutBasisPoints.length; i++) {\n            totalBasisPoints += _payoutBasisPoints[i];\n        }\n        require(totalBasisPoints == 10000, \"TOTAL_BASIS_POINTS_MUST_BE_10000\");\n        payoutAddresses = _payoutAddresses;\n        payoutBasisPoints = _payoutBasisPoints;\n    }\n\n    /**\n     * @notice Withdraws all funds held within contract\n     */\n    function withdraw() external nonReentrant onlyOwner {\n        require(address(this).balance > 0, \"CONTRACT_HAS_NO_BALANCE\");\n        uint256 balance = address(this).balance;\n        for (uint256 i = 0; i < payoutAddresses.length; i++) {\n            uint256 amount = (balance * payoutBasisPoints[i]) / 10000;\n            (bool success, ) = payoutAddresses[i].call{value: amount}(\"\");\n            require(success, \"Transfer failed.\");\n        }\n    }\n\n    /**\n     * @dev Require that the address being approved is not from a blocklisted exchange\n     */\n    modifier onlyAllowedOperatorApproval(address operator) {\n        uint256 operatorExchangeId = IExchangeOperatorAddressList(\n            blocklistContractAddress\n        ).operatorAddressToExchange(operator);\n        require(\n            blocklistPermanentlyDisabled ||\n                !isExchangeBlocklisted[operatorExchangeId],\n            \"BLOCKLISTED_EXCHANGE\"\n        );\n        _;\n    }\n\n    /**\n     * @notice Update blocklist contract address to a custom contract address if desired for custom functionality\n     */\n    function updateBlocklistContractAddress(address _blocklistContractAddress)\n        external\n        onlyOwner\n    {\n        blocklistContractAddress = _blocklistContractAddress;\n    }\n\n    /**\n     * @notice Permanently disable the blocklist so all exchanges are allowed forever\n     */\n    function permanentlyDisableBlocklist() external onlyOwner {\n        require(!blocklistPermanentlyDisabled, \"BLOCKLIST_ALREADY_DISABLED\");\n        blocklistPermanentlyDisabled = true;\n    }\n\n    /**\n     * @notice Set or unset an exchange contract address as blocklisted\n     */\n    function updateBlocklistedExchanges(\n        uint256[] calldata exchanges,\n        bool[] calldata blocklisted\n    ) external onlyOwner {\n        require(\n            exchanges.length == blocklisted.length,\n            \"ARRAYS_MUST_BE_SAME_LENGTH\"\n        );\n        for (uint256 i = 0; i < exchanges.length; i++) {\n            isExchangeBlocklisted[exchanges[i]] = blocklisted[i];\n        }\n    }\n\n    function setApprovalForAll(address operator, bool approved)\n        public\n        override(ERC721A, IERC721A)\n        onlyAllowedOperatorApproval(operator)\n    {\n        super.setApprovalForAll(operator, approved);\n    }\n\n    function approve(address to, uint256 tokenId)\n        public\n        override(ERC721A, IERC721A)\n        onlyAllowedOperatorApproval(to)\n    {\n        super.approve(to, tokenId);\n    }\n\n    function _beforeTokenTransfers(\n        address from,\n        address to,\n        uint256 tokenId,\n        uint256 quantity\n    ) internal override(ERC721A) whenNotPaused {\n        uint256 operatorExchangeId = IExchangeOperatorAddressList(\n            blocklistContractAddress\n        ).operatorAddressToExchange(msg.sender);\n        require(\n            blocklistPermanentlyDisabled ||\n                !isExchangeBlocklisted[operatorExchangeId],\n            \"BLOCKLISTED_EXCHANGE\"\n        );\n        super._beforeTokenTransfers(from, to, tokenId, quantity);\n    }\n}\n\ninterface IExchangeOperatorAddressList {\n    function operatorAddressToExchange(address operatorAddress)\n        external\n        view\n        returns (uint256);\n}\n"
    },
    "erc721a/contracts/ERC721A.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// ERC721A Contracts v4.2.2\n// Creator: Chiru Labs\n\npragma solidity ^0.8.4;\n\nimport './IERC721A.sol';\n\n/**\n * @dev Interface of ERC721 token receiver.\n */\ninterface ERC721A__IERC721Receiver {\n    function onERC721Received(\n        address operator,\n        address from,\n        uint256 tokenId,\n        bytes calldata data\n    ) external returns (bytes4);\n}\n\n/**\n * @title ERC721A\n *\n * @dev Implementation of the [ERC721](https://eips.ethereum.org/EIPS/eip-721)\n * Non-Fungible Token Standard, including the Metadata extension.\n * Optimized for lower gas during batch mints.\n *\n * Token IDs are minted in sequential order (e.g. 0, 1, 2, 3, ...)\n * starting from `_startTokenId()`.\n *\n * Assumptions:\n *\n * - An owner cannot have more than 2**64 - 1 (max value of uint64) of supply.\n * - The maximum token ID cannot exceed 2**256 - 1 (max value of uint256).\n */\ncontract ERC721A is IERC721A {\n    // Reference type for token approval.\n    struct TokenApprovalRef {\n        address value;\n    }\n\n    // =============================================================\n    //                           CONSTANTS\n    // =============================================================\n\n    // Mask of an entry in packed address data.\n    uint256 private constant _BITMASK_ADDRESS_DATA_ENTRY = (1 << 64) - 1;\n\n    // The bit position of `numberMinted` in packed address data.\n    uint256 private constant _BITPOS_NUMBER_MINTED = 64;\n\n    // The bit position of `numberBurned` in packed address data.\n    uint256 private constant _BITPOS_NUMBER_BURNED = 128;\n\n    // The bit position of `aux` in packed address data.\n    uint256 private constant _BITPOS_AUX = 192;\n\n    // Mask of all 256 bits in packed address data except the 64 bits for `aux`.\n    uint256 private constant _BITMASK_AUX_COMPLEMENT = (1 << 192) - 1;\n\n    // The bit position of `startTimestamp` in packed ownership.\n    uint256 private constant _BITPOS_START_TIMESTAMP = 160;\n\n    // The bit mask of the `burned` bit in packed ownership.\n    uint256 private constant _BITMASK_BURNED = 1 << 224;\n\n    // The bit position of the `nextInitialized` bit in packed ownership.\n    uint256 private constant _BITPOS_NEXT_INITIALIZED = 225;\n\n    // The bit mask of the `nextInitialized` bit in packed ownership.\n    uint256 private constant _BITMASK_NEXT_INITIALIZED = 1 << 225;\n\n    // The bit position of `extraData` in packed ownership.\n    uint256 private constant _BITPOS_EXTRA_DATA = 232;\n\n    // Mask of all 256 bits in a packed ownership except the 24 bits for `extraData`.\n    uint256 private constant _BITMASK_EXTRA_DATA_COMPLEMENT = (1 << 232) - 1;\n\n    // The mask of the lower 160 bits for addresses.\n    uint256 private constant _BITMASK_ADDRESS = (1 << 160) - 1;\n\n    // The maximum `quantity` that can be minted with {_mintERC2309}.\n    // This limit is to prevent overflows on the address data entries.\n    // For a limit of 5000, a total of 3.689e15 calls to {_mintERC2309}\n    // is required to cause an overflow, which is unrealistic.\n    uint256 private constant _MAX_MINT_ERC2309_QUANTITY_LIMIT = 5000;\n\n    // The `Transfer` event signature is given by:\n    // `keccak256(bytes(\"Transfer(address,address,uint256)\"))`.\n    bytes32 private constant _TRANSFER_EVENT_SIGNATURE =\n        0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef;\n\n    // =============================================================\n    //                            STORAGE\n    // =============================================================\n\n    // The next token ID to be minted.\n    uint256 private _currentIndex;\n\n    // The number of tokens burned.\n    uint256 private _burnCounter;\n\n    // Token name\n    string private _name;\n\n    // Token symbol\n    string private _symbol;\n\n    // Mapping from token ID to ownership details\n    // An empty struct value does not necessarily mean the token is unowned.\n    // See {_packedOwnershipOf} implementation for details.\n    //\n    // Bits Layout:\n    // - [0..159]   `addr`\n    // - [160..223] `startTimestamp`\n    // - [224]      `burned`\n    // - [225]      `nextInitialized`\n    // - [232..255] `extraData`\n    mapping(uint256 => uint256) private _packedOwnerships;\n\n    // Mapping owner address to address data.\n    //\n    // Bits Layout:\n    // - [0..63]    `balance`\n    // - [64..127]  `numberMinted`\n    // - [128..191] `numberBurned`\n    // - [192..255] `aux`\n    mapping(address => uint256) private _packedAddressData;\n\n    // Mapping from token ID to approved address.\n    mapping(uint256 => TokenApprovalRef) private _tokenApprovals;\n\n    // Mapping from owner to operator approvals\n    mapping(address => mapping(address => bool)) private _operatorApprovals;\n\n    // =============================================================\n    //                          CONSTRUCTOR\n    // =============================================================\n\n    constructor(string memory name_, string memory symbol_) {\n        _name = name_;\n        _symbol = symbol_;\n        _currentIndex = _startTokenId();\n    }\n\n    // =============================================================\n    //                   TOKEN COUNTING OPERATIONS\n    // =============================================================\n\n    /**\n     * @dev Returns the starting token ID.\n     * To change the starting token ID, please override this function.\n     */\n    function _startTokenId() internal view virtual returns (uint256) {\n        return 0;\n    }\n\n    /**\n     * @dev Returns the next token ID to be minted.\n     */\n    function _nextTokenId() internal view virtual returns (uint256) {\n        return _currentIndex;\n    }\n\n    /**\n     * @dev Returns the total number of tokens in existence.\n     * Burned tokens will reduce the count.\n     * To get the total number of tokens minted, please see {_totalMinted}.\n     */\n    function totalSupply() public view virtual override returns (uint256) {\n        // Counter underflow is impossible as _burnCounter cannot be incremented\n        // more than `_currentIndex - _startTokenId()` times.\n        unchecked {\n            return _currentIndex - _burnCounter - _startTokenId();\n        }\n    }\n\n    /**\n     * @dev Returns the total amount of tokens minted in the contract.\n     */\n    function _totalMinted() internal view virtual returns (uint256) {\n        // Counter underflow is impossible as `_currentIndex` does not decrement,\n        // and it is initialized to `_startTokenId()`.\n        unchecked {\n            return _currentIndex - _startTokenId();\n        }\n    }\n\n    /**\n     * @dev Returns the total number of tokens burned.\n     */\n    function _totalBurned() internal view virtual returns (uint256) {\n        return _burnCounter;\n    }\n\n    // =============================================================\n    //                    ADDRESS DATA OPERATIONS\n    // =============================================================\n\n    /**\n     * @dev Returns the number of tokens in `owner`'s account.\n     */\n    function balanceOf(address owner) public view virtual override returns (uint256) {\n        if (owner == address(0)) revert BalanceQueryForZeroAddress();\n        return _packedAddressData[owner] & _BITMASK_ADDRESS_DATA_ENTRY;\n    }\n\n    /**\n     * Returns the number of tokens minted by `owner`.\n     */\n    function _numberMinted(address owner) internal view returns (uint256) {\n        return (_packedAddressData[owner] >> _BITPOS_NUMBER_MINTED) & _BITMASK_ADDRESS_DATA_ENTRY;\n    }\n\n    /**\n     * Returns the number of tokens burned by or on behalf of `owner`.\n     */\n    function _numberBurned(address owner) internal view returns (uint256) {\n        return (_packedAddressData[owner] >> _BITPOS_NUMBER_BURNED) & _BITMASK_ADDRESS_DATA_ENTRY;\n    }\n\n    /**\n     * Returns the auxiliary data for `owner`. (e.g. number of whitelist mint slots used).\n     */\n    function _getAux(address owner) internal view returns (uint64) {\n        return uint64(_packedAddressData[owner] >> _BITPOS_AUX);\n    }\n\n    /**\n     * Sets the auxiliary data for `owner`. (e.g. number of whitelist mint slots used).\n     * If there are multiple variables, please pack them into a uint64.\n     */\n    function _setAux(address owner, uint64 aux) internal virtual {\n        uint256 packed = _packedAddressData[owner];\n        uint256 auxCasted;\n        // Cast `aux` with assembly to avoid redundant masking.\n        assembly {\n            auxCasted := aux\n        }\n        packed = (packed & _BITMASK_AUX_COMPLEMENT) | (auxCasted << _BITPOS_AUX);\n        _packedAddressData[owner] = packed;\n    }\n\n    // =============================================================\n    //                            IERC165\n    // =============================================================\n\n    /**\n     * @dev Returns true if this contract implements the interface defined by\n     * `interfaceId`. See the corresponding\n     * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)\n     * to learn more about how these ids are created.\n     *\n     * This function call must use less than 30000 gas.\n     */\n    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n        // The interface IDs are constants representing the first 4 bytes\n        // of the XOR of all function selectors in the interface.\n        // See: [ERC165](https://eips.ethereum.org/EIPS/eip-165)\n        // (e.g. `bytes4(i.functionA.selector ^ i.functionB.selector ^ ...)`)\n        return\n            interfaceId == 0x01ffc9a7 || // ERC165 interface ID for ERC165.\n            interfaceId == 0x80ac58cd || // ERC165 interface ID for ERC721.\n            interfaceId == 0x5b5e139f; // ERC165 interface ID for ERC721Metadata.\n    }\n\n    // =============================================================\n    //                        IERC721Metadata\n    // =============================================================\n\n    /**\n     * @dev Returns the token collection name.\n     */\n    function name() public view virtual override returns (string memory) {\n        return _name;\n    }\n\n    /**\n     * @dev Returns the token collection symbol.\n     */\n    function symbol() public view virtual override returns (string memory) {\n        return _symbol;\n    }\n\n    /**\n     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.\n     */\n    function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {\n        if (!_exists(tokenId)) revert URIQueryForNonexistentToken();\n\n        string memory baseURI = _baseURI();\n        return bytes(baseURI).length != 0 ? string(abi.encodePacked(baseURI, _toString(tokenId))) : '';\n    }\n\n    /**\n     * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each\n     * token will be the concatenation of the `baseURI` and the `tokenId`. Empty\n     * by default, it can be overridden in child contracts.\n     */\n    function _baseURI() internal view virtual returns (string memory) {\n        return '';\n    }\n\n    // =============================================================\n    //                     OWNERSHIPS OPERATIONS\n    // =============================================================\n\n    /**\n     * @dev Returns the owner of the `tokenId` token.\n     *\n     * Requirements:\n     *\n     * - `tokenId` must exist.\n     */\n    function ownerOf(uint256 tokenId) public view virtual override returns (address) {\n        return address(uint160(_packedOwnershipOf(tokenId)));\n    }\n\n    /**\n     * @dev Gas spent here starts off proportional to the maximum mint batch size.\n     * It gradually moves to O(1) as tokens get transferred around over time.\n     */\n    function _ownershipOf(uint256 tokenId) internal view virtual returns (TokenOwnership memory) {\n        return _unpackedOwnership(_packedOwnershipOf(tokenId));\n    }\n\n    /**\n     * @dev Returns the unpacked `TokenOwnership` struct at `index`.\n     */\n    function _ownershipAt(uint256 index) internal view virtual returns (TokenOwnership memory) {\n        return _unpackedOwnership(_packedOwnerships[index]);\n    }\n\n    /**\n     * @dev Initializes the ownership slot minted at `index` for efficiency purposes.\n     */\n    function _initializeOwnershipAt(uint256 index) internal virtual {\n        if (_packedOwnerships[index] == 0) {\n            _packedOwnerships[index] = _packedOwnershipOf(index);\n        }\n    }\n\n    /**\n     * Returns the packed ownership data of `tokenId`.\n     */\n    function _packedOwnershipOf(uint256 tokenId) private view returns (uint256) {\n        uint256 curr = tokenId;\n\n        unchecked {\n            if (_startTokenId() <= curr)\n                if (curr < _currentIndex) {\n                    uint256 packed = _packedOwnerships[curr];\n                    // If not burned.\n                    if (packed & _BITMASK_BURNED == 0) {\n                        // Invariant:\n                        // There will always be an initialized ownership slot\n                        // (i.e. `ownership.addr != address(0) && ownership.burned == false`)\n                        // before an unintialized ownership slot\n                        // (i.e. `ownership.addr == address(0) && ownership.burned == false`)\n                        // Hence, `curr` will not underflow.\n                        //\n                        // We can directly compare the packed value.\n                        // If the address is zero, packed will be zero.\n                        while (packed == 0) {\n                            packed = _packedOwnerships[--curr];\n                        }\n                        return packed;\n                    }\n                }\n        }\n        revert OwnerQueryForNonexistentToken();\n    }\n\n    /**\n     * @dev Returns the unpacked `TokenOwnership` struct from `packed`.\n     */\n    function _unpackedOwnership(uint256 packed) private pure returns (TokenOwnership memory ownership) {\n        ownership.addr = address(uint160(packed));\n        ownership.startTimestamp = uint64(packed >> _BITPOS_START_TIMESTAMP);\n        ownership.burned = packed & _BITMASK_BURNED != 0;\n        ownership.extraData = uint24(packed >> _BITPOS_EXTRA_DATA);\n    }\n\n    /**\n     * @dev Packs ownership data into a single uint256.\n     */\n    function _packOwnershipData(address owner, uint256 flags) private view returns (uint256 result) {\n        assembly {\n            // Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean.\n            owner := and(owner, _BITMASK_ADDRESS)\n            // `owner | (block.timestamp << _BITPOS_START_TIMESTAMP) | flags`.\n            result := or(owner, or(shl(_BITPOS_START_TIMESTAMP, timestamp()), flags))\n        }\n    }\n\n    /**\n     * @dev Returns the `nextInitialized` flag set if `quantity` equals 1.\n     */\n    function _nextInitializedFlag(uint256 quantity) private pure returns (uint256 result) {\n        // For branchless setting of the `nextInitialized` flag.\n        assembly {\n            // `(quantity == 1) << _BITPOS_NEXT_INITIALIZED`.\n            result := shl(_BITPOS_NEXT_INITIALIZED, eq(quantity, 1))\n        }\n    }\n\n    // =============================================================\n    //                      APPROVAL OPERATIONS\n    // =============================================================\n\n    /**\n     * @dev Gives permission to `to` to transfer `tokenId` token to another account.\n     * The approval is cleared when the token is transferred.\n     *\n     * Only a single account can be approved at a time, so approving the\n     * zero address clears previous approvals.\n     *\n     * Requirements:\n     *\n     * - The caller must own the token or be an approved operator.\n     * - `tokenId` must exist.\n     *\n     * Emits an {Approval} event.\n     */\n    function approve(address to, uint256 tokenId) public virtual override {\n        address owner = ownerOf(tokenId);\n\n        if (_msgSenderERC721A() != owner)\n            if (!isApprovedForAll(owner, _msgSenderERC721A())) {\n                revert ApprovalCallerNotOwnerNorApproved();\n            }\n\n        _tokenApprovals[tokenId].value = to;\n        emit Approval(owner, to, tokenId);\n    }\n\n    /**\n     * @dev Returns the account approved for `tokenId` token.\n     *\n     * Requirements:\n     *\n     * - `tokenId` must exist.\n     */\n    function getApproved(uint256 tokenId) public view virtual override returns (address) {\n        if (!_exists(tokenId)) revert ApprovalQueryForNonexistentToken();\n\n        return _tokenApprovals[tokenId].value;\n    }\n\n    /**\n     * @dev Approve or remove `operator` as an operator for the caller.\n     * Operators can call {transferFrom} or {safeTransferFrom}\n     * for any token owned by the caller.\n     *\n     * Requirements:\n     *\n     * - The `operator` cannot be the caller.\n     *\n     * Emits an {ApprovalForAll} event.\n     */\n    function setApprovalForAll(address operator, bool approved) public virtual override {\n        if (operator == _msgSenderERC721A()) revert ApproveToCaller();\n\n        _operatorApprovals[_msgSenderERC721A()][operator] = approved;\n        emit ApprovalForAll(_msgSenderERC721A(), operator, approved);\n    }\n\n    /**\n     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n     *\n     * See {setApprovalForAll}.\n     */\n    function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {\n        return _operatorApprovals[owner][operator];\n    }\n\n    /**\n     * @dev Returns whether `tokenId` exists.\n     *\n     * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.\n     *\n     * Tokens start existing when they are minted. See {_mint}.\n     */\n    function _exists(uint256 tokenId) internal view virtual returns (bool) {\n        return\n            _startTokenId() <= tokenId &&\n            tokenId < _currentIndex && // If within bounds,\n            _packedOwnerships[tokenId] & _BITMASK_BURNED == 0; // and not burned.\n    }\n\n    /**\n     * @dev Returns whether `msgSender` is equal to `approvedAddress` or `owner`.\n     */\n    function _isSenderApprovedOrOwner(\n        address approvedAddress,\n        address owner,\n        address msgSender\n    ) private pure returns (bool result) {\n        assembly {\n            // Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean.\n            owner := and(owner, _BITMASK_ADDRESS)\n            // Mask `msgSender` to the lower 160 bits, in case the upper bits somehow aren't clean.\n            msgSender := and(msgSender, _BITMASK_ADDRESS)\n            // `msgSender == owner || msgSender == approvedAddress`.\n            result := or(eq(msgSender, owner), eq(msgSender, approvedAddress))\n        }\n    }\n\n    /**\n     * @dev Returns the storage slot and value for the approved address of `tokenId`.\n     */\n    function _getApprovedSlotAndAddress(uint256 tokenId)\n        private\n        view\n        returns (uint256 approvedAddressSlot, address approvedAddress)\n    {\n        TokenApprovalRef storage tokenApproval = _tokenApprovals[tokenId];\n        // The following is equivalent to `approvedAddress = _tokenApprovals[tokenId]`.\n        assembly {\n            approvedAddressSlot := tokenApproval.slot\n            approvedAddress := sload(approvedAddressSlot)\n        }\n    }\n\n    // =============================================================\n    //                      TRANSFER OPERATIONS\n    // =============================================================\n\n    /**\n     * @dev Transfers `tokenId` from `from` to `to`.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must be owned by `from`.\n     * - If the caller is not `from`, it must be approved to move this token\n     * by either {approve} or {setApprovalForAll}.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transferFrom(\n        address from,\n        address to,\n        uint256 tokenId\n    ) public virtual override {\n        uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);\n\n        if (address(uint160(prevOwnershipPacked)) != from) revert TransferFromIncorrectOwner();\n\n        (uint256 approvedAddressSlot, address approvedAddress) = _getApprovedSlotAndAddress(tokenId);\n\n        // The nested ifs save around 20+ gas over a compound boolean condition.\n        if (!_isSenderApprovedOrOwner(approvedAddress, from, _msgSenderERC721A()))\n            if (!isApprovedForAll(from, _msgSenderERC721A())) revert TransferCallerNotOwnerNorApproved();\n\n        if (to == address(0)) revert TransferToZeroAddress();\n\n        _beforeTokenTransfers(from, to, tokenId, 1);\n\n        // Clear approvals from the previous owner.\n        assembly {\n            if approvedAddress {\n                // This is equivalent to `delete _tokenApprovals[tokenId]`.\n                sstore(approvedAddressSlot, 0)\n            }\n        }\n\n        // Underflow of the sender's balance is impossible because we check for\n        // ownership above and the recipient's balance can't realistically overflow.\n        // Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256.\n        unchecked {\n            // We can directly increment and decrement the balances.\n            --_packedAddressData[from]; // Updates: `balance -= 1`.\n            ++_packedAddressData[to]; // Updates: `balance += 1`.\n\n            // Updates:\n            // - `address` to the next owner.\n            // - `startTimestamp` to the timestamp of transfering.\n            // - `burned` to `false`.\n            // - `nextInitialized` to `true`.\n            _packedOwnerships[tokenId] = _packOwnershipData(\n                to,\n                _BITMASK_NEXT_INITIALIZED | _nextExtraData(from, to, prevOwnershipPacked)\n            );\n\n            // If the next slot may not have been initialized (i.e. `nextInitialized == false`) .\n            if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) {\n                uint256 nextTokenId = tokenId + 1;\n                // If the next slot's address is zero and not burned (i.e. packed value is zero).\n                if (_packedOwnerships[nextTokenId] == 0) {\n                    // If the next slot is within bounds.\n                    if (nextTokenId != _currentIndex) {\n                        // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`.\n                        _packedOwnerships[nextTokenId] = prevOwnershipPacked;\n                    }\n                }\n            }\n        }\n\n        emit Transfer(from, to, tokenId);\n        _afterTokenTransfers(from, to, tokenId, 1);\n    }\n\n    /**\n     * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.\n     */\n    function safeTransferFrom(\n        address from,\n        address to,\n        uint256 tokenId\n    ) public virtual override {\n        safeTransferFrom(from, to, tokenId, '');\n    }\n\n    /**\n     * @dev Safely transfers `tokenId` token from `from` to `to`.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must exist and be owned by `from`.\n     * - If the caller is not `from`, it must be approved to move this token\n     * by either {approve} or {setApprovalForAll}.\n     * - If `to` refers to a smart contract, it must implement\n     * {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n     *\n     * Emits a {Transfer} event.\n     */\n    function safeTransferFrom(\n        address from,\n        address to,\n        uint256 tokenId,\n        bytes memory _data\n    ) public virtual override {\n        transferFrom(from, to, tokenId);\n        if (to.code.length != 0)\n            if (!_checkContractOnERC721Received(from, to, tokenId, _data)) {\n                revert TransferToNonERC721ReceiverImplementer();\n            }\n    }\n\n    /**\n     * @dev Hook that is called before a set of serially-ordered token IDs\n     * are about to be transferred. This includes minting.\n     * And also called before burning one token.\n     *\n     * `startTokenId` - the first token ID to be transferred.\n     * `quantity` - the amount to be transferred.\n     *\n     * Calling conditions:\n     *\n     * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be\n     * transferred to `to`.\n     * - When `from` is zero, `tokenId` will be minted for `to`.\n     * - When `to` is zero, `tokenId` will be burned by `from`.\n     * - `from` and `to` are never both zero.\n     */\n    function _beforeTokenTransfers(\n        address from,\n        address to,\n        uint256 startTokenId,\n        uint256 quantity\n    ) internal virtual {}\n\n    /**\n     * @dev Hook that is called after a set of serially-ordered token IDs\n     * have been transferred. This includes minting.\n     * And also called after one token has been burned.\n     *\n     * `startTokenId` - the first token ID to be transferred.\n     * `quantity` - the amount to be transferred.\n     *\n     * Calling conditions:\n     *\n     * - When `from` and `to` are both non-zero, `from`'s `tokenId` has been\n     * transferred to `to`.\n     * - When `from` is zero, `tokenId` has been minted for `to`.\n     * - When `to` is zero, `tokenId` has been burned by `from`.\n     * - `from` and `to` are never both zero.\n     */\n    function _afterTokenTransfers(\n        address from,\n        address to,\n        uint256 startTokenId,\n        uint256 quantity\n    ) internal virtual {}\n\n    /**\n     * @dev Private function to invoke {IERC721Receiver-onERC721Received} on a target contract.\n     *\n     * `from` - Previous owner of the given token ID.\n     * `to` - Target address that will receive the token.\n     * `tokenId` - Token ID to be transferred.\n     * `_data` - Optional data to send along with the call.\n     *\n     * Returns whether the call correctly returned the expected magic value.\n     */\n    function _checkContractOnERC721Received(\n        address from,\n        address to,\n        uint256 tokenId,\n        bytes memory _data\n    ) private returns (bool) {\n        try ERC721A__IERC721Receiver(to).onERC721Received(_msgSenderERC721A(), from, tokenId, _data) returns (\n            bytes4 retval\n        ) {\n            return retval == ERC721A__IERC721Receiver(to).onERC721Received.selector;\n        } catch (bytes memory reason) {\n            if (reason.length == 0) {\n                revert TransferToNonERC721ReceiverImplementer();\n            } else {\n                assembly {\n                    revert(add(32, reason), mload(reason))\n                }\n            }\n        }\n    }\n\n    // =============================================================\n    //                        MINT OPERATIONS\n    // =============================================================\n\n    /**\n     * @dev Mints `quantity` tokens and transfers them to `to`.\n     *\n     * Requirements:\n     *\n     * - `to` cannot be the zero address.\n     * - `quantity` must be greater than 0.\n     *\n     * Emits a {Transfer} event for each mint.\n     */\n    function _mint(address to, uint256 quantity) internal virtual {\n        uint256 startTokenId = _currentIndex;\n        if (quantity == 0) revert MintZeroQuantity();\n\n        _beforeTokenTransfers(address(0), to, startTokenId, quantity);\n\n        // Overflows are incredibly unrealistic.\n        // `balance` and `numberMinted` have a maximum limit of 2**64.\n        // `tokenId` has a maximum limit of 2**256.\n        unchecked {\n            // Updates:\n            // - `balance += quantity`.\n            // - `numberMinted += quantity`.\n            //\n            // We can directly add to the `balance` and `numberMinted`.\n            _packedAddressData[to] += quantity * ((1 << _BITPOS_NUMBER_MINTED) | 1);\n\n            // Updates:\n            // - `address` to the owner.\n            // - `startTimestamp` to the timestamp of minting.\n            // - `burned` to `false`.\n            // - `nextInitialized` to `quantity == 1`.\n            _packedOwnerships[startTokenId] = _packOwnershipData(\n                to,\n                _nextInitializedFlag(quantity) | _nextExtraData(address(0), to, 0)\n            );\n\n            uint256 toMasked;\n            uint256 end = startTokenId + quantity;\n\n            // Use assembly to loop and emit the `Transfer` event for gas savings.\n            assembly {\n                // Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean.\n                toMasked := and(to, _BITMASK_ADDRESS)\n                // Emit the `Transfer` event.\n                log4(\n                    0, // Start of data (0, since no data).\n                    0, // End of data (0, since no data).\n                    _TRANSFER_EVENT_SIGNATURE, // Signature.\n                    0, // `address(0)`.\n                    toMasked, // `to`.\n                    startTokenId // `tokenId`.\n                )\n\n                for {\n                    let tokenId := add(startTokenId, 1)\n                } iszero(eq(tokenId, end)) {\n                    tokenId := add(tokenId, 1)\n                } {\n                    // Emit the `Transfer` event. Similar to above.\n                    log4(0, 0, _TRANSFER_EVENT_SIGNATURE, 0, toMasked, tokenId)\n                }\n            }\n            if (toMasked == 0) revert MintToZeroAddress();\n\n            _currentIndex = end;\n        }\n        _afterTokenTransfers(address(0), to, startTokenId, quantity);\n    }\n\n    /**\n     * @dev Mints `quantity` tokens and transfers them to `to`.\n     *\n     * This function is intended for efficient minting only during contract creation.\n     *\n     * It emits only one {ConsecutiveTransfer} as defined in\n     * [ERC2309](https://eips.ethereum.org/EIPS/eip-2309),\n     * instead of a sequence of {Transfer} event(s).\n     *\n     * Calling this function outside of contract creation WILL make your contract\n     * non-compliant with the ERC721 standard.\n     * For full ERC721 compliance, substituting ERC721 {Transfer} event(s) with the ERC2309\n     * {ConsecutiveTransfer} event is only permissible during contract creation.\n     *\n     * Requirements:\n     *\n     * - `to` cannot be the zero address.\n     * - `quantity` must be greater than 0.\n     *\n     * Emits a {ConsecutiveTransfer} event.\n     */\n    function _mintERC2309(address to, uint256 quantity) internal virtual {\n        uint256 startTokenId = _currentIndex;\n        if (to == address(0)) revert MintToZeroAddress();\n        if (quantity == 0) revert MintZeroQuantity();\n        if (quantity > _MAX_MINT_ERC2309_QUANTITY_LIMIT) revert MintERC2309QuantityExceedsLimit();\n\n        _beforeTokenTransfers(address(0), to, startTokenId, quantity);\n\n        // Overflows are unrealistic due to the above check for `quantity` to be below the limit.\n        unchecked {\n            // Updates:\n            // - `balance += quantity`.\n            // - `numberMinted += quantity`.\n            //\n            // We can directly add to the `balance` and `numberMinted`.\n            _packedAddressData[to] += quantity * ((1 << _BITPOS_NUMBER_MINTED) | 1);\n\n            // Updates:\n            // - `address` to the owner.\n            // - `startTimestamp` to the timestamp of minting.\n            // - `burned` to `false`.\n            // - `nextInitialized` to `quantity == 1`.\n            _packedOwnerships[startTokenId] = _packOwnershipData(\n                to,\n                _nextInitializedFlag(quantity) | _nextExtraData(address(0), to, 0)\n            );\n\n            emit ConsecutiveTransfer(startTokenId, startTokenId + quantity - 1, address(0), to);\n\n            _currentIndex = startTokenId + quantity;\n        }\n        _afterTokenTransfers(address(0), to, startTokenId, quantity);\n    }\n\n    /**\n     * @dev Safely mints `quantity` tokens and transfers them to `to`.\n     *\n     * Requirements:\n     *\n     * - If `to` refers to a smart contract, it must implement\n     * {IERC721Receiver-onERC721Received}, which is called for each safe transfer.\n     * - `quantity` must be greater than 0.\n     *\n     * See {_mint}.\n     *\n     * Emits a {Transfer} event for each mint.\n     */\n    function _safeMint(\n        address to,\n        uint256 quantity,\n        bytes memory _data\n    ) internal virtual {\n        _mint(to, quantity);\n\n        unchecked {\n            if (to.code.length != 0) {\n                uint256 end = _currentIndex;\n                uint256 index = end - quantity;\n                do {\n                    if (!_checkContractOnERC721Received(address(0), to, index++, _data)) {\n                        revert TransferToNonERC721ReceiverImplementer();\n                    }\n                } while (index < end);\n                // Reentrancy protection.\n                if (_currentIndex != end) revert();\n            }\n        }\n    }\n\n    /**\n     * @dev Equivalent to `_safeMint(to, quantity, '')`.\n     */\n    function _safeMint(address to, uint256 quantity) internal virtual {\n        _safeMint(to, quantity, '');\n    }\n\n    // =============================================================\n    //                        BURN OPERATIONS\n    // =============================================================\n\n    /**\n     * @dev Equivalent to `_burn(tokenId, false)`.\n     */\n    function _burn(uint256 tokenId) internal virtual {\n        _burn(tokenId, false);\n    }\n\n    /**\n     * @dev Destroys `tokenId`.\n     * The approval is cleared when the token is burned.\n     *\n     * Requirements:\n     *\n     * - `tokenId` must exist.\n     *\n     * Emits a {Transfer} event.\n     */\n    function _burn(uint256 tokenId, bool approvalCheck) internal virtual {\n        uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);\n\n        address from = address(uint160(prevOwnershipPacked));\n\n        (uint256 approvedAddressSlot, address approvedAddress) = _getApprovedSlotAndAddress(tokenId);\n\n        if (approvalCheck) {\n            // The nested ifs save around 20+ gas over a compound boolean condition.\n            if (!_isSenderApprovedOrOwner(approvedAddress, from, _msgSenderERC721A()))\n                if (!isApprovedForAll(from, _msgSenderERC721A())) revert TransferCallerNotOwnerNorApproved();\n        }\n\n        _beforeTokenTransfers(from, address(0), tokenId, 1);\n\n        // Clear approvals from the previous owner.\n        assembly {\n            if approvedAddress {\n                // This is equivalent to `delete _tokenApprovals[tokenId]`.\n                sstore(approvedAddressSlot, 0)\n            }\n        }\n\n        // Underflow of the sender's balance is impossible because we check for\n        // ownership above and the recipient's balance can't realistically overflow.\n        // Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256.\n        unchecked {\n            // Updates:\n            // - `balance -= 1`.\n            // - `numberBurned += 1`.\n            //\n            // We can directly decrement the balance, and increment the number burned.\n            // This is equivalent to `packed -= 1; packed += 1 << _BITPOS_NUMBER_BURNED;`.\n            _packedAddressData[from] += (1 << _BITPOS_NUMBER_BURNED) - 1;\n\n            // Updates:\n            // - `address` to the last owner.\n            // - `startTimestamp` to the timestamp of burning.\n            // - `burned` to `true`.\n            // - `nextInitialized` to `true`.\n            _packedOwnerships[tokenId] = _packOwnershipData(\n                from,\n                (_BITMASK_BURNED | _BITMASK_NEXT_INITIALIZED) | _nextExtraData(from, address(0), prevOwnershipPacked)\n            );\n\n            // If the next slot may not have been initialized (i.e. `nextInitialized == false`) .\n            if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) {\n                uint256 nextTokenId = tokenId + 1;\n                // If the next slot's address is zero and not burned (i.e. packed value is zero).\n                if (_packedOwnerships[nextTokenId] == 0) {\n                    // If the next slot is within bounds.\n                    if (nextTokenId != _currentIndex) {\n                        // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`.\n                        _packedOwnerships[nextTokenId] = prevOwnershipPacked;\n                    }\n                }\n            }\n        }\n\n        emit Transfer(from, address(0), tokenId);\n        _afterTokenTransfers(from, address(0), tokenId, 1);\n\n        // Overflow not possible, as _burnCounter cannot be exceed _currentIndex times.\n        unchecked {\n            _burnCounter++;\n        }\n    }\n\n    // =============================================================\n    //                     EXTRA DATA OPERATIONS\n    // =============================================================\n\n    /**\n     * @dev Directly sets the extra data for the ownership data `index`.\n     */\n    function _setExtraDataAt(uint256 index, uint24 extraData) internal virtual {\n        uint256 packed = _packedOwnerships[index];\n        if (packed == 0) revert OwnershipNotInitializedForExtraData();\n        uint256 extraDataCasted;\n        // Cast `extraData` with assembly to avoid redundant masking.\n        assembly {\n            extraDataCasted := extraData\n        }\n        packed = (packed & _BITMASK_EXTRA_DATA_COMPLEMENT) | (extraDataCasted << _BITPOS_EXTRA_DATA);\n        _packedOwnerships[index] = packed;\n    }\n\n    /**\n     * @dev Called during each token transfer to set the 24bit `extraData` field.\n     * Intended to be overridden by the cosumer contract.\n     *\n     * `previousExtraData` - the value of `extraData` before transfer.\n     *\n     * Calling conditions:\n     *\n     * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be\n     * transferred to `to`.\n     * - When `from` is zero, `tokenId` will be minted for `to`.\n     * - When `to` is zero, `tokenId` will be burned by `from`.\n     * - `from` and `to` are never both zero.\n     */\n    function _extraData(\n        address from,\n        address to,\n        uint24 previousExtraData\n    ) internal view virtual returns (uint24) {}\n\n    /**\n     * @dev Returns the next extra data for the packed ownership data.\n     * The returned result is shifted into position.\n     */\n    function _nextExtraData(\n        address from,\n        address to,\n        uint256 prevOwnershipPacked\n    ) private view returns (uint256) {\n        uint24 extraData = uint24(prevOwnershipPacked >> _BITPOS_EXTRA_DATA);\n        return uint256(_extraData(from, to, extraData)) << _BITPOS_EXTRA_DATA;\n    }\n\n    // =============================================================\n    //                       OTHER OPERATIONS\n    // =============================================================\n\n    /**\n     * @dev Returns the message sender (defaults to `msg.sender`).\n     *\n     * If you are writing GSN compatible contracts, you need to override this function.\n     */\n    function _msgSenderERC721A() internal view virtual returns (address) {\n        return msg.sender;\n    }\n\n    /**\n     * @dev Converts a uint256 to its ASCII string decimal representation.\n     */\n    function _toString(uint256 value) internal pure virtual returns (string memory str) {\n        assembly {\n            // The maximum value of a uint256 contains 78 digits (1 byte per digit),\n            // but we allocate 0x80 bytes to keep the free memory pointer 32-byte word aliged.\n            // We will need 1 32-byte word to store the length,\n            // and 3 32-byte words to store a maximum of 78 digits. Total: 0x20 + 3 * 0x20 = 0x80.\n            str := add(mload(0x40), 0x80)\n            // Update the free memory pointer to allocate.\n            mstore(0x40, str)\n\n            // Cache the end of the memory to calculate the length later.\n            let end := str\n\n            // We write the string from rightmost digit to leftmost digit.\n            // The following is essentially a do-while loop that also handles the zero case.\n            // prettier-ignore\n            for { let temp := value } 1 {} {\n                str := sub(str, 1)\n                // Write the character to the pointer.\n                // The ASCII index of the '0' character is 48.\n                mstore8(str, add(48, mod(temp, 10)))\n                // Keep dividing `temp` until zero.\n                temp := div(temp, 10)\n                // prettier-ignore\n                if iszero(temp) { break }\n            }\n\n            let length := sub(end, str)\n            // Move the pointer 32 bytes leftwards to make room for the length.\n            str := sub(str, 0x20)\n            // Store the length.\n            mstore(str, length)\n        }\n    }\n}\n"
    },
    "erc721a/contracts/extensions/ERC721AQueryable.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// ERC721A Contracts v4.2.2\n// Creator: Chiru Labs\n\npragma solidity ^0.8.4;\n\nimport './IERC721AQueryable.sol';\nimport '../ERC721A.sol';\n\n/**\n * @title ERC721AQueryable.\n *\n * @dev ERC721A subclass with convenience query functions.\n */\nabstract contract ERC721AQueryable is ERC721A, IERC721AQueryable {\n    /**\n     * @dev Returns the `TokenOwnership` struct at `tokenId` without reverting.\n     *\n     * If the `tokenId` is out of bounds:\n     *\n     * - `addr = address(0)`\n     * - `startTimestamp = 0`\n     * - `burned = false`\n     * - `extraData = 0`\n     *\n     * If the `tokenId` is burned:\n     *\n     * - `addr = <Address of owner before token was burned>`\n     * - `startTimestamp = <Timestamp when token was burned>`\n     * - `burned = true`\n     * - `extraData = <Extra data when token was burned>`\n     *\n     * Otherwise:\n     *\n     * - `addr = <Address of owner>`\n     * - `startTimestamp = <Timestamp of start of ownership>`\n     * - `burned = false`\n     * - `extraData = <Extra data at start of ownership>`\n     */\n    function explicitOwnershipOf(uint256 tokenId) public view virtual override returns (TokenOwnership memory) {\n        TokenOwnership memory ownership;\n        if (tokenId < _startTokenId() || tokenId >= _nextTokenId()) {\n            return ownership;\n        }\n        ownership = _ownershipAt(tokenId);\n        if (ownership.burned) {\n            return ownership;\n        }\n        return _ownershipOf(tokenId);\n    }\n\n    /**\n     * @dev Returns an array of `TokenOwnership` structs at `tokenIds` in order.\n     * See {ERC721AQueryable-explicitOwnershipOf}\n     */\n    function explicitOwnershipsOf(uint256[] calldata tokenIds)\n        external\n        view\n        virtual\n        override\n        returns (TokenOwnership[] memory)\n    {\n        unchecked {\n            uint256 tokenIdsLength = tokenIds.length;\n            TokenOwnership[] memory ownerships = new TokenOwnership[](tokenIdsLength);\n            for (uint256 i; i != tokenIdsLength; ++i) {\n                ownerships[i] = explicitOwnershipOf(tokenIds[i]);\n            }\n            return ownerships;\n        }\n    }\n\n    /**\n     * @dev Returns an array of token IDs owned by `owner`,\n     * in the range [`start`, `stop`)\n     * (i.e. `start <= tokenId < stop`).\n     *\n     * This function allows for tokens to be queried if the collection\n     * grows too big for a single call of {ERC721AQueryable-tokensOfOwner}.\n     *\n     * Requirements:\n     *\n     * - `start < stop`\n     */\n    function tokensOfOwnerIn(\n        address owner,\n        uint256 start,\n        uint256 stop\n    ) external view virtual override returns (uint256[] memory) {\n        unchecked {\n            if (start >= stop) revert InvalidQueryRange();\n            uint256 tokenIdsIdx;\n            uint256 stopLimit = _nextTokenId();\n            // Set `start = max(start, _startTokenId())`.\n            if (start < _startTokenId()) {\n                start = _startTokenId();\n            }\n            // Set `stop = min(stop, stopLimit)`.\n            if (stop > stopLimit) {\n                stop = stopLimit;\n            }\n            uint256 tokenIdsMaxLength = balanceOf(owner);\n            // Set `tokenIdsMaxLength = min(balanceOf(owner), stop - start)`,\n            // to cater for cases where `balanceOf(owner)` is too big.\n            if (start < stop) {\n                uint256 rangeLength = stop - start;\n                if (rangeLength < tokenIdsMaxLength) {\n                    tokenIdsMaxLength = rangeLength;\n                }\n            } else {\n                tokenIdsMaxLength = 0;\n            }\n            uint256[] memory tokenIds = new uint256[](tokenIdsMaxLength);\n            if (tokenIdsMaxLength == 0) {\n                return tokenIds;\n            }\n            // We need to call `explicitOwnershipOf(start)`,\n            // because the slot at `start` may not be initialized.\n            TokenOwnership memory ownership = explicitOwnershipOf(start);\n            address currOwnershipAddr;\n            // If the starting slot exists (i.e. not burned), initialize `currOwnershipAddr`.\n            // `ownership.address` will not be zero, as `start` is clamped to the valid token ID range.\n            if (!ownership.burned) {\n                currOwnershipAddr = ownership.addr;\n            }\n            for (uint256 i = start; i != stop && tokenIdsIdx != tokenIdsMaxLength; ++i) {\n                ownership = _ownershipAt(i);\n                if (ownership.burned) {\n                    continue;\n                }\n                if (ownership.addr != address(0)) {\n                    currOwnershipAddr = ownership.addr;\n                }\n                if (currOwnershipAddr == owner) {\n                    tokenIds[tokenIdsIdx++] = i;\n                }\n            }\n            // Downsize the array to fit.\n            assembly {\n                mstore(tokenIds, tokenIdsIdx)\n            }\n            return tokenIds;\n        }\n    }\n\n    /**\n     * @dev Returns an array of token IDs owned by `owner`.\n     *\n     * This function scans the ownership mapping and is O(`totalSupply`) in complexity.\n     * It is meant to be called off-chain.\n     *\n     * See {ERC721AQueryable-tokensOfOwnerIn} for splitting the scan into\n     * multiple smaller scans if the collection is large enough to cause\n     * an out-of-gas error (10K collections should be fine).\n     */\n    function tokensOfOwner(address owner) external view virtual override returns (uint256[] memory) {\n        unchecked {\n            uint256 tokenIdsIdx;\n            address currOwnershipAddr;\n            uint256 tokenIdsLength = balanceOf(owner);\n            uint256[] memory tokenIds = new uint256[](tokenIdsLength);\n            TokenOwnership memory ownership;\n            for (uint256 i = _startTokenId(); tokenIdsIdx != tokenIdsLength; ++i) {\n                ownership = _ownershipAt(i);\n                if (ownership.burned) {\n                    continue;\n                }\n                if (ownership.addr != address(0)) {\n                    currOwnershipAddr = ownership.addr;\n                }\n                if (currOwnershipAddr == owner) {\n                    tokenIds[tokenIdsIdx++] = i;\n                }\n            }\n            return tokenIds;\n        }\n    }\n}\n"
    },
    "erc721a/contracts/extensions/ERC4907A.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// ERC721A Contracts v4.2.2\n// Creator: Chiru Labs\n\npragma solidity ^0.8.4;\n\nimport './IERC4907A.sol';\nimport '../ERC721A.sol';\n\n/**\n * @title ERC4907A\n *\n * @dev [ERC4907](https://eips.ethereum.org/EIPS/eip-4907) compliant\n * extension of ERC721A, which allows owners and authorized addresses\n * to add a time-limited role with restricted permissions to ERC721 tokens.\n */\nabstract contract ERC4907A is ERC721A, IERC4907A {\n    // The bit position of `expires` in packed user info.\n    uint256 private constant _BITPOS_EXPIRES = 160;\n\n    // Mapping from token ID to user info.\n    //\n    // Bits Layout:\n    // - [0..159]   `user`\n    // - [160..223] `expires`\n    mapping(uint256 => uint256) private _packedUserInfo;\n\n    /**\n     * @dev Sets the `user` and `expires` for `tokenId`.\n     * The zero address indicates there is no user.\n     *\n     * Requirements:\n     *\n     * - The caller must own `tokenId` or be an approved operator.\n     */\n    function setUser(\n        uint256 tokenId,\n        address user,\n        uint64 expires\n    ) public virtual override {\n        // Require the caller to be either the token owner or an approved operator.\n        address owner = ownerOf(tokenId);\n        if (_msgSenderERC721A() != owner)\n            if (!isApprovedForAll(owner, _msgSenderERC721A()))\n                if (getApproved(tokenId) != _msgSenderERC721A()) revert SetUserCallerNotOwnerNorApproved();\n\n        _packedUserInfo[tokenId] = (uint256(expires) << _BITPOS_EXPIRES) | uint256(uint160(user));\n\n        emit UpdateUser(tokenId, user, expires);\n    }\n\n    /**\n     * @dev Returns the user address for `tokenId`.\n     * The zero address indicates that there is no user or if the user is expired.\n     */\n    function userOf(uint256 tokenId) public view virtual override returns (address) {\n        uint256 packed = _packedUserInfo[tokenId];\n        assembly {\n            // Branchless `packed *= (block.timestamp <= expires ? 1 : 0)`.\n            // If the `block.timestamp == expires`, the `lt` clause will be true\n            // if there is a non-zero user address in the lower 160 bits of `packed`.\n            packed := mul(\n                packed,\n                // `block.timestamp <= expires ? 1 : 0`.\n                lt(shl(_BITPOS_EXPIRES, timestamp()), packed)\n            )\n        }\n        return address(uint160(packed));\n    }\n\n    /**\n     * @dev Returns the user's expires of `tokenId`.\n     */\n    function userExpires(uint256 tokenId) public view virtual override returns (uint256) {\n        return _packedUserInfo[tokenId] >> _BITPOS_EXPIRES;\n    }\n\n    /**\n     * @dev Override of {IERC165-supportsInterface}.\n     */\n    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC721A, IERC721A) returns (bool) {\n        // The interface ID for ERC4907 is `0xad092b5c`,\n        // as defined in [ERC4907](https://eips.ethereum.org/EIPS/eip-4907).\n        return super.supportsInterface(interfaceId) || interfaceId == 0xad092b5c;\n    }\n\n    /**\n     * @dev Returns the user address for `tokenId`, ignoring the expiry status.\n     */\n    function _explicitUserOf(uint256 tokenId) internal view virtual returns (address) {\n        return address(uint160(_packedUserInfo[tokenId]));\n    }\n}\n"
    },
    "@openzeppelin/contracts/access/Ownable.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/Context.sol\";\n\n/**\n * @dev Contract module which provides a basic access control mechanism, where\n * there is an account (an owner) that can be granted exclusive access to\n * specific functions.\n *\n * By default, the owner account will be the one that deploys the contract. This\n * can later be changed with {transferOwnership}.\n *\n * This module is used through inheritance. It will make available the modifier\n * `onlyOwner`, which can be applied to your functions to restrict their use to\n * the owner.\n */\nabstract contract Ownable is Context {\n    address private _owner;\n\n    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\n\n    /**\n     * @dev Initializes the contract setting the deployer as the initial owner.\n     */\n    constructor() {\n        _transferOwnership(_msgSender());\n    }\n\n    /**\n     * @dev Throws if called by any account other than the owner.\n     */\n    modifier onlyOwner() {\n        _checkOwner();\n        _;\n    }\n\n    /**\n     * @dev Returns the address of the current owner.\n     */\n    function owner() public view virtual returns (address) {\n        return _owner;\n    }\n\n    /**\n     * @dev Throws if the sender is not the owner.\n     */\n    function _checkOwner() internal view virtual {\n        require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n    }\n\n    /**\n     * @dev Leaves the contract without owner. It will not be possible to call\n     * `onlyOwner` functions anymore. Can only be called by the current owner.\n     *\n     * NOTE: Renouncing ownership will leave the contract without an owner,\n     * thereby removing any functionality that is only available to the owner.\n     */\n    function renounceOwnership() public virtual onlyOwner {\n        _transferOwnership(address(0));\n    }\n\n    /**\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\n     * Can only be called by the current owner.\n     */\n    function transferOwnership(address newOwner) public virtual onlyOwner {\n        require(newOwner != address(0), \"Ownable: new owner is the zero address\");\n        _transferOwnership(newOwner);\n    }\n\n    /**\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\n     * Internal function without access restriction.\n     */\n    function _transferOwnership(address newOwner) internal virtual {\n        address oldOwner = _owner;\n        _owner = newOwner;\n        emit OwnershipTransferred(oldOwner, newOwner);\n    }\n}\n"
    },
    "@openzeppelin/contracts/security/Pausable.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (security/Pausable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/Context.sol\";\n\n/**\n * @dev Contract module which allows children to implement an emergency stop\n * mechanism that can be triggered by an authorized account.\n *\n * This module is used through inheritance. It will make available the\n * modifiers `whenNotPaused` and `whenPaused`, which can be applied to\n * the functions of your contract. Note that they will not be pausable by\n * simply including this module, only once the modifiers are put in place.\n */\nabstract contract Pausable is Context {\n    /**\n     * @dev Emitted when the pause is triggered by `account`.\n     */\n    event Paused(address account);\n\n    /**\n     * @dev Emitted when the pause is lifted by `account`.\n     */\n    event Unpaused(address account);\n\n    bool private _paused;\n\n    /**\n     * @dev Initializes the contract in unpaused state.\n     */\n    constructor() {\n        _paused = false;\n    }\n\n    /**\n     * @dev Modifier to make a function callable only when the contract is not paused.\n     *\n     * Requirements:\n     *\n     * - The contract must not be paused.\n     */\n    modifier whenNotPaused() {\n        _requireNotPaused();\n        _;\n    }\n\n    /**\n     * @dev Modifier to make a function callable only when the contract is paused.\n     *\n     * Requirements:\n     *\n     * - The contract must be paused.\n     */\n    modifier whenPaused() {\n        _requirePaused();\n        _;\n    }\n\n    /**\n     * @dev Returns true if the contract is paused, and false otherwise.\n     */\n    function paused() public view virtual returns (bool) {\n        return _paused;\n    }\n\n    /**\n     * @dev Throws if the contract is paused.\n     */\n    function _requireNotPaused() internal view virtual {\n        require(!paused(), \"Pausable: paused\");\n    }\n\n    /**\n     * @dev Throws if the contract is not paused.\n     */\n    function _requirePaused() internal view virtual {\n        require(paused(), \"Pausable: not paused\");\n    }\n\n    /**\n     * @dev Triggers stopped state.\n     *\n     * Requirements:\n     *\n     * - The contract must not be paused.\n     */\n    function _pause() internal virtual whenNotPaused {\n        _paused = true;\n        emit Paused(_msgSender());\n    }\n\n    /**\n     * @dev Returns to normal state.\n     *\n     * Requirements:\n     *\n     * - The contract must be paused.\n     */\n    function _unpause() internal virtual whenPaused {\n        _paused = false;\n        emit Unpaused(_msgSender());\n    }\n}\n"
    },
    "@openzeppelin/contracts/security/ReentrancyGuard.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Contract module that helps prevent reentrant calls to a function.\n *\n * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier\n * available, which can be applied to functions to make sure there are no nested\n * (reentrant) calls to them.\n *\n * Note that because there is a single `nonReentrant` guard, functions marked as\n * `nonReentrant` may not call one another. This can be worked around by making\n * those functions `private`, and then adding `external` `nonReentrant` entry\n * points to them.\n *\n * TIP: If you would like to learn more about reentrancy and alternative ways\n * to protect against it, check out our blog post\n * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].\n */\nabstract contract ReentrancyGuard {\n    // Booleans are more expensive than uint256 or any type that takes up a full\n    // word because each write operation emits an extra SLOAD to first read the\n    // slot's contents, replace the bits taken up by the boolean, and then write\n    // back. This is the compiler's defense against contract upgrades and\n    // pointer aliasing, and it cannot be disabled.\n\n    // The values being non-zero value makes deployment a bit more expensive,\n    // but in exchange the refund on every call to nonReentrant will be lower in\n    // amount. Since refunds are capped to a percentage of the total\n    // transaction's gas, it is best to keep them low in cases like this one, to\n    // increase the likelihood of the full refund coming into effect.\n    uint256 private constant _NOT_ENTERED = 1;\n    uint256 private constant _ENTERED = 2;\n\n    uint256 private _status;\n\n    constructor() {\n        _status = _NOT_ENTERED;\n    }\n\n    /**\n     * @dev Prevents a contract from calling itself, directly or indirectly.\n     * Calling a `nonReentrant` function from another `nonReentrant`\n     * function is not supported. It is possible to prevent this from happening\n     * by making the `nonReentrant` function external, and making it call a\n     * `private` function that does the actual work.\n     */\n    modifier nonReentrant() {\n        // On the first call to nonReentrant, _notEntered will be true\n        require(_status != _ENTERED, \"ReentrancyGuard: reentrant call\");\n\n        // Any calls to nonReentrant after this point will fail\n        _status = _ENTERED;\n\n        _;\n\n        // By storing the original value once again, a refund is triggered (see\n        // https://eips.ethereum.org/EIPS/eip-2200)\n        _status = _NOT_ENTERED;\n    }\n}\n"
    },
    "@openzeppelin/contracts/token/common/ERC2981.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (token/common/ERC2981.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../interfaces/IERC2981.sol\";\nimport \"../../utils/introspection/ERC165.sol\";\n\n/**\n * @dev Implementation of the NFT Royalty Standard, a standardized way to retrieve royalty payment information.\n *\n * Royalty information can be specified globally for all token ids via {_setDefaultRoyalty}, and/or individually for\n * specific token ids via {_setTokenRoyalty}. The latter takes precedence over the first.\n *\n * Royalty is specified as a fraction of sale price. {_feeDenominator} is overridable but defaults to 10000, meaning the\n * fee is specified in basis points by default.\n *\n * IMPORTANT: ERC-2981 only specifies a way to signal royalty information and does not enforce its payment. See\n * https://eips.ethereum.org/EIPS/eip-2981#optional-royalty-payments[Rationale] in the EIP. Marketplaces are expected to\n * voluntarily pay royalties together with sales, but note that this standard is not yet widely supported.\n *\n * _Available since v4.5._\n */\nabstract contract ERC2981 is IERC2981, ERC165 {\n    struct RoyaltyInfo {\n        address receiver;\n        uint96 royaltyFraction;\n    }\n\n    RoyaltyInfo private _defaultRoyaltyInfo;\n    mapping(uint256 => RoyaltyInfo) private _tokenRoyaltyInfo;\n\n    /**\n     * @dev See {IERC165-supportsInterface}.\n     */\n    function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC165) returns (bool) {\n        return interfaceId == type(IERC2981).interfaceId || super.supportsInterface(interfaceId);\n    }\n\n    /**\n     * @inheritdoc IERC2981\n     */\n    function royaltyInfo(uint256 _tokenId, uint256 _salePrice) public view virtual override returns (address, uint256) {\n        RoyaltyInfo memory royalty = _tokenRoyaltyInfo[_tokenId];\n\n        if (royalty.receiver == address(0)) {\n            royalty = _defaultRoyaltyInfo;\n        }\n\n        uint256 royaltyAmount = (_salePrice * royalty.royaltyFraction) / _feeDenominator();\n\n        return (royalty.receiver, royaltyAmount);\n    }\n\n    /**\n     * @dev The denominator with which to interpret the fee set in {_setTokenRoyalty} and {_setDefaultRoyalty} as a\n     * fraction of the sale price. Defaults to 10000 so fees are expressed in basis points, but may be customized by an\n     * override.\n     */\n    function _feeDenominator() internal pure virtual returns (uint96) {\n        return 10000;\n    }\n\n    /**\n     * @dev Sets the royalty information that all ids in this contract will default to.\n     *\n     * Requirements:\n     *\n     * - `receiver` cannot be the zero address.\n     * - `feeNumerator` cannot be greater than the fee denominator.\n     */\n    function _setDefaultRoyalty(address receiver, uint96 feeNumerator) internal virtual {\n        require(feeNumerator <= _feeDenominator(), \"ERC2981: royalty fee will exceed salePrice\");\n        require(receiver != address(0), \"ERC2981: invalid receiver\");\n\n        _defaultRoyaltyInfo = RoyaltyInfo(receiver, feeNumerator);\n    }\n\n    /**\n     * @dev Removes default royalty information.\n     */\n    function _deleteDefaultRoyalty() internal virtual {\n        delete _defaultRoyaltyInfo;\n    }\n\n    /**\n     * @dev Sets the royalty information for a specific token id, overriding the global default.\n     *\n     * Requirements:\n     *\n     * - `receiver` cannot be the zero address.\n     * - `feeNumerator` cannot be greater than the fee denominator.\n     */\n    function _setTokenRoyalty(\n        uint256 tokenId,\n        address receiver,\n        uint96 feeNumerator\n    ) internal virtual {\n        require(feeNumerator <= _feeDenominator(), \"ERC2981: royalty fee will exceed salePrice\");\n        require(receiver != address(0), \"ERC2981: Invalid parameters\");\n\n        _tokenRoyaltyInfo[tokenId] = RoyaltyInfo(receiver, feeNumerator);\n    }\n\n    /**\n     * @dev Resets royalty information for the token id back to the global default.\n     */\n    function _resetTokenRoyalty(uint256 tokenId) internal virtual {\n        delete _tokenRoyaltyInfo[tokenId];\n    }\n}\n"
    },
    "@openzeppelin/contracts/utils/Context.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Provides information about the current execution context, including the\n * sender of the transaction and its data. While these are generally available\n * via msg.sender and msg.data, they should not be accessed in such a direct\n * manner, since when dealing with meta-transactions the account sending and\n * paying for execution may not be the actual sender (as far as an application\n * is concerned).\n *\n * This contract is only required for intermediate, library-like contracts.\n */\nabstract contract Context {\n    function _msgSender() internal view virtual returns (address) {\n        return msg.sender;\n    }\n\n    function _msgData() internal view virtual returns (bytes calldata) {\n        return msg.data;\n    }\n}\n"
    },
    "@openzeppelin/contracts/interfaces/IERC2981.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (interfaces/IERC2981.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/introspection/IERC165.sol\";\n\n/**\n * @dev Interface for the NFT Royalty Standard.\n *\n * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal\n * support for royalty payments across all NFT marketplaces and ecosystem participants.\n *\n * _Available since v4.5._\n */\ninterface IERC2981 is IERC165 {\n    /**\n     * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of\n     * exchange. The royalty amount is denominated and should be paid in that same unit of exchange.\n     */\n    function royaltyInfo(uint256 tokenId, uint256 salePrice)\n        external\n        view\n        returns (address receiver, uint256 royaltyAmount);\n}\n"
    },
    "@openzeppelin/contracts/utils/introspection/ERC165.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC165.sol\";\n\n/**\n * @dev Implementation of the {IERC165} interface.\n *\n * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check\n * for the additional interface id that will be supported. For example:\n *\n * ```solidity\n * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);\n * }\n * ```\n *\n * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.\n */\nabstract contract ERC165 is IERC165 {\n    /**\n     * @dev See {IERC165-supportsInterface}.\n     */\n    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n        return interfaceId == type(IERC165).interfaceId;\n    }\n}\n"
    },
    "erc721a/contracts/IERC721A.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// ERC721A Contracts v4.2.2\n// Creator: Chiru Labs\n\npragma solidity ^0.8.4;\n\n/**\n * @dev Interface of ERC721A.\n */\ninterface IERC721A {\n    /**\n     * The caller must own the token or be an approved operator.\n     */\n    error ApprovalCallerNotOwnerNorApproved();\n\n    /**\n     * The token does not exist.\n     */\n    error ApprovalQueryForNonexistentToken();\n\n    /**\n     * The caller cannot approve to their own address.\n     */\n    error ApproveToCaller();\n\n    /**\n     * Cannot query the balance for the zero address.\n     */\n    error BalanceQueryForZeroAddress();\n\n    /**\n     * Cannot mint to the zero address.\n     */\n    error MintToZeroAddress();\n\n    /**\n     * The quantity of tokens minted must be more than zero.\n     */\n    error MintZeroQuantity();\n\n    /**\n     * The token does not exist.\n     */\n    error OwnerQueryForNonexistentToken();\n\n    /**\n     * The caller must own the token or be an approved operator.\n     */\n    error TransferCallerNotOwnerNorApproved();\n\n    /**\n     * The token must be owned by `from`.\n     */\n    error TransferFromIncorrectOwner();\n\n    /**\n     * Cannot safely transfer to a contract that does not implement the\n     * ERC721Receiver interface.\n     */\n    error TransferToNonERC721ReceiverImplementer();\n\n    /**\n     * Cannot transfer to the zero address.\n     */\n    error TransferToZeroAddress();\n\n    /**\n     * The token does not exist.\n     */\n    error URIQueryForNonexistentToken();\n\n    /**\n     * The `quantity` minted with ERC2309 exceeds the safety limit.\n     */\n    error MintERC2309QuantityExceedsLimit();\n\n    /**\n     * The `extraData` cannot be set on an unintialized ownership slot.\n     */\n    error OwnershipNotInitializedForExtraData();\n\n    // =============================================================\n    //                            STRUCTS\n    // =============================================================\n\n    struct TokenOwnership {\n        // The address of the owner.\n        address addr;\n        // Stores the start time of ownership with minimal overhead for tokenomics.\n        uint64 startTimestamp;\n        // Whether the token has been burned.\n        bool burned;\n        // Arbitrary data similar to `startTimestamp` that can be set via {_extraData}.\n        uint24 extraData;\n    }\n\n    // =============================================================\n    //                         TOKEN COUNTERS\n    // =============================================================\n\n    /**\n     * @dev Returns the total number of tokens in existence.\n     * Burned tokens will reduce the count.\n     * To get the total number of tokens minted, please see {_totalMinted}.\n     */\n    function totalSupply() external view returns (uint256);\n\n    // =============================================================\n    //                            IERC165\n    // =============================================================\n\n    /**\n     * @dev Returns true if this contract implements the interface defined by\n     * `interfaceId`. See the corresponding\n     * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)\n     * to learn more about how these ids are created.\n     *\n     * This function call must use less than 30000 gas.\n     */\n    function supportsInterface(bytes4 interfaceId) external view returns (bool);\n\n    // =============================================================\n    //                            IERC721\n    // =============================================================\n\n    /**\n     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.\n     */\n    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n\n    /**\n     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.\n     */\n    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n\n    /**\n     * @dev Emitted when `owner` enables or disables\n     * (`approved`) `operator` to manage all of its assets.\n     */\n    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n    /**\n     * @dev Returns the number of tokens in `owner`'s account.\n     */\n    function balanceOf(address owner) external view returns (uint256 balance);\n\n    /**\n     * @dev Returns the owner of the `tokenId` token.\n     *\n     * Requirements:\n     *\n     * - `tokenId` must exist.\n     */\n    function ownerOf(uint256 tokenId) external view returns (address owner);\n\n    /**\n     * @dev Safely transfers `tokenId` token from `from` to `to`,\n     * checking first that contract recipients are aware of the ERC721 protocol\n     * to prevent tokens from being forever locked.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must exist and be owned by `from`.\n     * - If the caller is not `from`, it must be have been allowed to move\n     * this token by either {approve} or {setApprovalForAll}.\n     * - If `to` refers to a smart contract, it must implement\n     * {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n     *\n     * Emits a {Transfer} event.\n     */\n    function safeTransferFrom(\n        address from,\n        address to,\n        uint256 tokenId,\n        bytes calldata data\n    ) external;\n\n    /**\n     * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.\n     */\n    function safeTransferFrom(\n        address from,\n        address to,\n        uint256 tokenId\n    ) external;\n\n    /**\n     * @dev Transfers `tokenId` from `from` to `to`.\n     *\n     * WARNING: Usage of this method is discouraged, use {safeTransferFrom}\n     * whenever possible.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must be owned by `from`.\n     * - If the caller is not `from`, it must be approved to move this token\n     * by either {approve} or {setApprovalForAll}.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transferFrom(\n        address from,\n        address to,\n        uint256 tokenId\n    ) external;\n\n    /**\n     * @dev Gives permission to `to` to transfer `tokenId` token to another account.\n     * The approval is cleared when the token is transferred.\n     *\n     * Only a single account can be approved at a time, so approving the\n     * zero address clears previous approvals.\n     *\n     * Requirements:\n     *\n     * - The caller must own the token or be an approved operator.\n     * - `tokenId` must exist.\n     *\n     * Emits an {Approval} event.\n     */\n    function approve(address to, uint256 tokenId) external;\n\n    /**\n     * @dev Approve or remove `operator` as an operator for the caller.\n     * Operators can call {transferFrom} or {safeTransferFrom}\n     * for any token owned by the caller.\n     *\n     * Requirements:\n     *\n     * - The `operator` cannot be the caller.\n     *\n     * Emits an {ApprovalForAll} event.\n     */\n    function setApprovalForAll(address operator, bool _approved) external;\n\n    /**\n     * @dev Returns the account approved for `tokenId` token.\n     *\n     * Requirements:\n     *\n     * - `tokenId` must exist.\n     */\n    function getApproved(uint256 tokenId) external view returns (address operator);\n\n    /**\n     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n     *\n     * See {setApprovalForAll}.\n     */\n    function isApprovedForAll(address owner, address operator) external view returns (bool);\n\n    // =============================================================\n    //                        IERC721Metadata\n    // =============================================================\n\n    /**\n     * @dev Returns the token collection name.\n     */\n    function name() external view returns (string memory);\n\n    /**\n     * @dev Returns the token collection symbol.\n     */\n    function symbol() external view returns (string memory);\n\n    /**\n     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.\n     */\n    function tokenURI(uint256 tokenId) external view returns (string memory);\n\n    // =============================================================\n    //                           IERC2309\n    // =============================================================\n\n    /**\n     * @dev Emitted when tokens in `fromTokenId` to `toTokenId`\n     * (inclusive) is transferred from `from` to `to`, as defined in the\n     * [ERC2309](https://eips.ethereum.org/EIPS/eip-2309) standard.\n     *\n     * See {_mintERC2309} for more details.\n     */\n    event ConsecutiveTransfer(uint256 indexed fromTokenId, uint256 toTokenId, address indexed from, address indexed to);\n}\n"
    },
    "erc721a/contracts/extensions/IERC4907A.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// ERC721A Contracts v4.2.2\n// Creator: Chiru Labs\n\npragma solidity ^0.8.4;\n\nimport '../IERC721A.sol';\n\n/**\n * @dev Interface of ERC4907A.\n */\ninterface IERC4907A is IERC721A {\n    /**\n     * The caller must own the token or be an approved operator.\n     */\n    error SetUserCallerNotOwnerNorApproved();\n\n    /**\n     * @dev Emitted when the `user` of an NFT or the `expires` of the `user` is changed.\n     * The zero address for user indicates that there is no user address.\n     */\n    event UpdateUser(uint256 indexed tokenId, address indexed user, uint64 expires);\n\n    /**\n     * @dev Sets the `user` and `expires` for `tokenId`.\n     * The zero address indicates there is no user.\n     *\n     * Requirements:\n     *\n     * - The caller must own `tokenId` or be an approved operator.\n     */\n    function setUser(\n        uint256 tokenId,\n        address user,\n        uint64 expires\n    ) external;\n\n    /**\n     * @dev Returns the user address for `tokenId`.\n     * The zero address indicates that there is no user or if the user is expired.\n     */\n    function userOf(uint256 tokenId) external view returns (address);\n\n    /**\n     * @dev Returns the user's expires of `tokenId`.\n     */\n    function userExpires(uint256 tokenId) external view returns (uint256);\n}\n"
    },
    "erc721a/contracts/extensions/IERC721AQueryable.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// ERC721A Contracts v4.2.2\n// Creator: Chiru Labs\n\npragma solidity ^0.8.4;\n\nimport '../IERC721A.sol';\n\n/**\n * @dev Interface of ERC721AQueryable.\n */\ninterface IERC721AQueryable is IERC721A {\n    /**\n     * Invalid query range (`start` >= `stop`).\n     */\n    error InvalidQueryRange();\n\n    /**\n     * @dev Returns the `TokenOwnership` struct at `tokenId` without reverting.\n     *\n     * If the `tokenId` is out of bounds:\n     *\n     * - `addr = address(0)`\n     * - `startTimestamp = 0`\n     * - `burned = false`\n     * - `extraData = 0`\n     *\n     * If the `tokenId` is burned:\n     *\n     * - `addr = <Address of owner before token was burned>`\n     * - `startTimestamp = <Timestamp when token was burned>`\n     * - `burned = true`\n     * - `extraData = <Extra data when token was burned>`\n     *\n     * Otherwise:\n     *\n     * - `addr = <Address of owner>`\n     * - `startTimestamp = <Timestamp of start of ownership>`\n     * - `burned = false`\n     * - `extraData = <Extra data at start of ownership>`\n     */\n    function explicitOwnershipOf(uint256 tokenId) external view returns (TokenOwnership memory);\n\n    /**\n     * @dev Returns an array of `TokenOwnership` structs at `tokenIds` in order.\n     * See {ERC721AQueryable-explicitOwnershipOf}\n     */\n    function explicitOwnershipsOf(uint256[] memory tokenIds) external view returns (TokenOwnership[] memory);\n\n    /**\n     * @dev Returns an array of token IDs owned by `owner`,\n     * in the range [`start`, `stop`)\n     * (i.e. `start <= tokenId < stop`).\n     *\n     * This function allows for tokens to be queried if the collection\n     * grows too big for a single call of {ERC721AQueryable-tokensOfOwner}.\n     *\n     * Requirements:\n     *\n     * - `start < stop`\n     */\n    function tokensOfOwnerIn(\n        address owner,\n        uint256 start,\n        uint256 stop\n    ) external view returns (uint256[] memory);\n\n    /**\n     * @dev Returns an array of token IDs owned by `owner`.\n     *\n     * This function scans the ownership mapping and is O(`totalSupply`) in complexity.\n     * It is meant to be called off-chain.\n     *\n     * See {ERC721AQueryable-tokensOfOwnerIn} for splitting the scan into\n     * multiple smaller scans if the collection is large enough to cause\n     * an out-of-gas error (10K collections should be fine).\n     */\n    function tokensOfOwner(address owner) external view returns (uint256[] memory);\n}\n"
    },
    "@openzeppelin/contracts/utils/introspection/IERC165.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others ({ERC165Checker}).\n *\n * For an implementation, see {ERC165}.\n */\ninterface IERC165 {\n    /**\n     * @dev Returns true if this contract implements the interface defined by\n     * `interfaceId`. See the corresponding\n     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\n     * to learn more about how these ids are created.\n     *\n     * This function call must use less than 30 000 gas.\n     */\n    function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n"
    }
  },
  "settings": {
    "optimizer": {
      "runs": 200,
      "enabled": true
    },
    "outputSelection": {
      "*": {
        "*": [
          "evm.bytecode",
          "evm.deployedBytecode",
          "devdoc",
          "userdoc",
          "metadata",
          "abi"
        ]
      }
    }
  }
}