creation_sourcecode: {{
    "language": "Solidity",
    "sources": {
      "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/ContextUpgradeable.sol\";\nimport {Initializable} from \"../proxy/utils/Initializable.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 OwnableUpgradeable is Initializable, ContextUpgradeable {\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    function __Ownable_init() internal onlyInitializing {\n        __Ownable_init_unchained();\n    }\n\n    function __Ownable_init_unchained() internal onlyInitializing {\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. Can only be called by the current owner.\n     *\n     * NOTE: Renouncing ownership will leave the contract without an owner,\n     * thereby disabling 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    /**\n     * @dev This empty reserved space is put in place to allow future versions to add new\n     * variables without shifting down storage in the inheritance chain.\n     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n     */\n    uint256[49] private __gap;\n}\n"
      },
      "@openzeppelin/contracts-upgradeable/interfaces/IERC2981Upgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (interfaces/IERC2981.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/introspection/IERC165Upgradeable.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 IERC2981Upgradeable is IERC165Upgradeable {\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(\n        uint256 tokenId,\n        uint256 salePrice\n    ) external view returns (address receiver, uint256 royaltyAmount);\n}\n"
      },
      "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/Initializable.sol)\n\npragma solidity ^0.8.2;\n\nimport \"../../utils/AddressUpgradeable.sol\";\n\n/**\n * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed\n * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an\n * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer\n * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.\n *\n * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be\n * reused. This mechanism prevents re-execution of each \"step\" but allows the creation of new initialization steps in\n * case an upgrade adds a module that needs to be initialized.\n *\n * For example:\n *\n * [.hljs-theme-light.nopadding]\n * ```solidity\n * contract MyToken is ERC20Upgradeable {\n *     function initialize() initializer public {\n *         __ERC20_init(\"MyToken\", \"MTK\");\n *     }\n * }\n *\n * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {\n *     function initializeV2() reinitializer(2) public {\n *         __ERC20Permit_init(\"MyToken\");\n *     }\n * }\n * ```\n *\n * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as\n * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.\n *\n * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure\n * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.\n *\n * [CAUTION]\n * ====\n * Avoid leaving a contract uninitialized.\n *\n * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation\n * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke\n * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:\n *\n * [.hljs-theme-light.nopadding]\n * ```\n * /// @custom:oz-upgrades-unsafe-allow constructor\n * constructor() {\n *     _disableInitializers();\n * }\n * ```\n * ====\n */\nabstract contract Initializable {\n    /**\n     * @dev Indicates that the contract has been initialized.\n     * @custom:oz-retyped-from bool\n     */\n    uint8 private _initialized;\n\n    /**\n     * @dev Indicates that the contract is in the process of being initialized.\n     */\n    bool private _initializing;\n\n    /**\n     * @dev Triggered when the contract has been initialized or reinitialized.\n     */\n    event Initialized(uint8 version);\n\n    /**\n     * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,\n     * `onlyInitializing` functions can be used to initialize parent contracts.\n     *\n     * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a\n     * constructor.\n     *\n     * Emits an {Initialized} event.\n     */\n    modifier initializer() {\n        bool isTopLevelCall = !_initializing;\n        require(\n            (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),\n            \"Initializable: contract is already initialized\"\n        );\n        _initialized = 1;\n        if (isTopLevelCall) {\n            _initializing = true;\n        }\n        _;\n        if (isTopLevelCall) {\n            _initializing = false;\n            emit Initialized(1);\n        }\n    }\n\n    /**\n     * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the\n     * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be\n     * used to initialize parent contracts.\n     *\n     * A reinitializer may be used after the original initialization step. This is essential to configure modules that\n     * are added through upgrades and that require initialization.\n     *\n     * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`\n     * cannot be nested. If one is invoked in the context of another, execution will revert.\n     *\n     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in\n     * a contract, executing them in the right order is up to the developer or operator.\n     *\n     * WARNING: setting the version to 255 will prevent any future reinitialization.\n     *\n     * Emits an {Initialized} event.\n     */\n    modifier reinitializer(uint8 version) {\n        require(!_initializing && _initialized < version, \"Initializable: contract is already initialized\");\n        _initialized = version;\n        _initializing = true;\n        _;\n        _initializing = false;\n        emit Initialized(version);\n    }\n\n    /**\n     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the\n     * {initializer} and {reinitializer} modifiers, directly or indirectly.\n     */\n    modifier onlyInitializing() {\n        require(_initializing, \"Initializable: contract is not initializing\");\n        _;\n    }\n\n    /**\n     * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.\n     * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized\n     * to any version. It is recommended to use this to lock implementation contracts that are designed to be called\n     * through proxies.\n     *\n     * Emits an {Initialized} event the first time it is successfully executed.\n     */\n    function _disableInitializers() internal virtual {\n        require(!_initializing, \"Initializable: contract is initializing\");\n        if (_initialized != type(uint8).max) {\n            _initialized = type(uint8).max;\n            emit Initialized(type(uint8).max);\n        }\n    }\n\n    /**\n     * @dev Returns the highest version that has been initialized. See {reinitializer}.\n     */\n    function _getInitializedVersion() internal view returns (uint8) {\n        return _initialized;\n    }\n\n    /**\n     * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.\n     */\n    function _isInitializing() internal view returns (bool) {\n        return _initializing;\n    }\n}\n"
      },
      "@openzeppelin/contracts-upgradeable/token/common/ERC2981Upgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (token/common/ERC2981.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../interfaces/IERC2981Upgradeable.sol\";\nimport \"../../utils/introspection/ERC165Upgradeable.sol\";\nimport {Initializable} from \"../../proxy/utils/Initializable.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 ERC2981Upgradeable is Initializable, IERC2981Upgradeable, ERC165Upgradeable {\n    struct RoyaltyInfo {\n        address receiver;\n        uint96 royaltyFraction;\n    }\n\n    RoyaltyInfo private _defaultRoyaltyInfo;\n    mapping(uint256 => RoyaltyInfo) private _tokenRoyaltyInfo;\n\n    function __ERC2981_init() internal onlyInitializing {\n    }\n\n    function __ERC2981_init_unchained() internal onlyInitializing {\n    }\n    /**\n     * @dev See {IERC165-supportsInterface}.\n     */\n    function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165Upgradeable, ERC165Upgradeable) returns (bool) {\n        return interfaceId == type(IERC2981Upgradeable).interfaceId || super.supportsInterface(interfaceId);\n    }\n\n    /**\n     * @inheritdoc IERC2981Upgradeable\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(uint256 tokenId, address receiver, uint96 feeNumerator) 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    /**\n     * @dev This empty reserved space is put in place to allow future versions to add new\n     * variables without shifting down storage in the inheritance chain.\n     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n     */\n    uint256[48] private __gap;\n}\n"
      },
      "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary AddressUpgradeable {\n    /**\n     * @dev Returns true if `account` is a contract.\n     *\n     * [IMPORTANT]\n     * ====\n     * It is unsafe to assume that an address for which this function returns\n     * false is an externally-owned account (EOA) and not a contract.\n     *\n     * Among others, `isContract` will return false for the following\n     * types of addresses:\n     *\n     *  - an externally-owned account\n     *  - a contract in construction\n     *  - an address where a contract will be created\n     *  - an address where a contract lived, but was destroyed\n     *\n     * Furthermore, `isContract` will also return true if the target contract within\n     * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,\n     * which only has an effect at the end of a transaction.\n     * ====\n     *\n     * [IMPORTANT]\n     * ====\n     * You shouldn't rely on `isContract` to protect against flash loan attacks!\n     *\n     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n     * constructor.\n     * ====\n     */\n    function isContract(address account) internal view returns (bool) {\n        // This method relies on extcodesize/address.code.length, which returns 0\n        // for contracts in construction, since the code is only stored at the end\n        // of the constructor execution.\n\n        return account.code.length > 0;\n    }\n\n    /**\n     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n     * `recipient`, forwarding all available gas and reverting on errors.\n     *\n     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n     * of certain opcodes, possibly making contracts go over the 2300 gas limit\n     * imposed by `transfer`, making them unable to receive funds via\n     * `transfer`. {sendValue} removes this limitation.\n     *\n     * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n     *\n     * IMPORTANT: because control is transferred to `recipient`, care must be\n     * taken to not create reentrancy vulnerabilities. Consider using\n     * {ReentrancyGuard} or the\n     * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n     */\n    function sendValue(address payable recipient, uint256 amount) internal {\n        require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n        (bool success, ) = recipient.call{value: amount}(\"\");\n        require(success, \"Address: unable to send value, recipient may have reverted\");\n    }\n\n    /**\n     * @dev Performs a Solidity function call using a low level `call`. A\n     * plain `call` is an unsafe replacement for a function call: use this\n     * function instead.\n     *\n     * If `target` reverts with a revert reason, it is bubbled up by this\n     * function (like regular Solidity function calls).\n     *\n     * Returns the raw returned data. To convert to the expected return value,\n     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n     *\n     * Requirements:\n     *\n     * - `target` must be a contract.\n     * - calling `target` with `data` must not revert.\n     *\n     * _Available since v3.1._\n     */\n    function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, 0, \"Address: low-level call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n     * `errorMessage` as a fallback revert reason when `target` reverts.\n     *\n     * _Available since v3.1._\n     */\n    function functionCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, 0, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but also transferring `value` wei to `target`.\n     *\n     * Requirements:\n     *\n     * - the calling contract must have an ETH balance of at least `value`.\n     * - the called Solidity function must be `payable`.\n     *\n     * _Available since v3.1._\n     */\n    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n     * with `errorMessage` as a fallback revert reason when `target` reverts.\n     *\n     * _Available since v3.1._\n     */\n    function functionCallWithValue(\n        address target,\n        bytes memory data,\n        uint256 value,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        require(address(this).balance >= value, \"Address: insufficient balance for call\");\n        (bool success, bytes memory returndata) = target.call{value: value}(data);\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but performing a static call.\n     *\n     * _Available since v3.3._\n     */\n    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n        return functionStaticCall(target, data, \"Address: low-level static call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n     * but performing a static call.\n     *\n     * _Available since v3.3._\n     */\n    function functionStaticCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal view returns (bytes memory) {\n        (bool success, bytes memory returndata) = target.staticcall(data);\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but performing a delegate call.\n     *\n     * _Available since v3.4._\n     */\n    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n        return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n     * but performing a delegate call.\n     *\n     * _Available since v3.4._\n     */\n    function functionDelegateCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        (bool success, bytes memory returndata) = target.delegatecall(data);\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling\n     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.\n     *\n     * _Available since v4.8._\n     */\n    function verifyCallResultFromTarget(\n        address target,\n        bool success,\n        bytes memory returndata,\n        string memory errorMessage\n    ) internal view returns (bytes memory) {\n        if (success) {\n            if (returndata.length == 0) {\n                // only check isContract if the call was successful and the return data is empty\n                // otherwise we already know that it was a contract\n                require(isContract(target), \"Address: call to non-contract\");\n            }\n            return returndata;\n        } else {\n            _revert(returndata, errorMessage);\n        }\n    }\n\n    /**\n     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the\n     * revert reason or using the provided one.\n     *\n     * _Available since v4.3._\n     */\n    function verifyCallResult(\n        bool success,\n        bytes memory returndata,\n        string memory errorMessage\n    ) internal pure returns (bytes memory) {\n        if (success) {\n            return returndata;\n        } else {\n            _revert(returndata, errorMessage);\n        }\n    }\n\n    function _revert(bytes memory returndata, string memory errorMessage) private pure {\n        // Look for revert reason and bubble it up if present\n        if (returndata.length > 0) {\n            // The easiest way to bubble the revert reason is using memory via assembly\n            /// @solidity memory-safe-assembly\n            assembly {\n                let returndata_size := mload(returndata)\n                revert(add(32, returndata), returndata_size)\n            }\n        } else {\n            revert(errorMessage);\n        }\n    }\n}\n"
      },
      "@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.4) (utils/Context.sol)\n\npragma solidity ^0.8.0;\nimport {Initializable} from \"../proxy/utils/Initializable.sol\";\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 ContextUpgradeable is Initializable {\n    function __Context_init() internal onlyInitializing {\n    }\n\n    function __Context_init_unchained() internal onlyInitializing {\n    }\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    function _contextSuffixLength() internal view virtual returns (uint256) {\n        return 0;\n    }\n\n    /**\n     * @dev This empty reserved space is put in place to allow future versions to add new\n     * variables without shifting down storage in the inheritance chain.\n     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n     */\n    uint256[50] private __gap;\n}\n"
      },
      "@openzeppelin/contracts-upgradeable/utils/cryptography/MerkleProofUpgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.2) (utils/cryptography/MerkleProof.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev These functions deal with verification of Merkle Tree proofs.\n *\n * The tree and the proofs can be generated using our\n * https://github.com/OpenZeppelin/merkle-tree[JavaScript library].\n * You will find a quickstart guide in the readme.\n *\n * WARNING: You should avoid using leaf values that are 64 bytes long prior to\n * hashing, or use a hash function other than keccak256 for hashing leaves.\n * This is because the concatenation of a sorted pair of internal nodes in\n * the merkle tree could be reinterpreted as a leaf value.\n * OpenZeppelin's JavaScript library generates merkle trees that are safe\n * against this attack out of the box.\n */\nlibrary MerkleProofUpgradeable {\n    /**\n     * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree\n     * defined by `root`. For this, a `proof` must be provided, containing\n     * sibling hashes on the branch from the leaf to the root of the tree. Each\n     * pair of leaves and each pair of pre-images are assumed to be sorted.\n     */\n    function verify(bytes32[] memory proof, bytes32 root, bytes32 leaf) internal pure returns (bool) {\n        return processProof(proof, leaf) == root;\n    }\n\n    /**\n     * @dev Calldata version of {verify}\n     *\n     * _Available since v4.7._\n     */\n    function verifyCalldata(bytes32[] calldata proof, bytes32 root, bytes32 leaf) internal pure returns (bool) {\n        return processProofCalldata(proof, leaf) == root;\n    }\n\n    /**\n     * @dev Returns the rebuilt hash obtained by traversing a Merkle tree up\n     * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt\n     * hash matches the root of the tree. When processing the proof, the pairs\n     * of leafs & pre-images are assumed to be sorted.\n     *\n     * _Available since v4.4._\n     */\n    function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) {\n        bytes32 computedHash = leaf;\n        for (uint256 i = 0; i < proof.length; i++) {\n            computedHash = _hashPair(computedHash, proof[i]);\n        }\n        return computedHash;\n    }\n\n    /**\n     * @dev Calldata version of {processProof}\n     *\n     * _Available since v4.7._\n     */\n    function processProofCalldata(bytes32[] calldata proof, bytes32 leaf) internal pure returns (bytes32) {\n        bytes32 computedHash = leaf;\n        for (uint256 i = 0; i < proof.length; i++) {\n            computedHash = _hashPair(computedHash, proof[i]);\n        }\n        return computedHash;\n    }\n\n    /**\n     * @dev Returns true if the `leaves` can be simultaneously proven to be a part of a merkle tree defined by\n     * `root`, according to `proof` and `proofFlags` as described in {processMultiProof}.\n     *\n     * CAUTION: Not all merkle trees admit multiproofs. See {processMultiProof} for details.\n     *\n     * _Available since v4.7._\n     */\n    function multiProofVerify(\n        bytes32[] memory proof,\n        bool[] memory proofFlags,\n        bytes32 root,\n        bytes32[] memory leaves\n    ) internal pure returns (bool) {\n        return processMultiProof(proof, proofFlags, leaves) == root;\n    }\n\n    /**\n     * @dev Calldata version of {multiProofVerify}\n     *\n     * CAUTION: Not all merkle trees admit multiproofs. See {processMultiProof} for details.\n     *\n     * _Available since v4.7._\n     */\n    function multiProofVerifyCalldata(\n        bytes32[] calldata proof,\n        bool[] calldata proofFlags,\n        bytes32 root,\n        bytes32[] memory leaves\n    ) internal pure returns (bool) {\n        return processMultiProofCalldata(proof, proofFlags, leaves) == root;\n    }\n\n    /**\n     * @dev Returns the root of a tree reconstructed from `leaves` and sibling nodes in `proof`. The reconstruction\n     * proceeds by incrementally reconstructing all inner nodes by combining a leaf/inner node with either another\n     * leaf/inner node or a proof sibling node, depending on whether each `proofFlags` item is true or false\n     * respectively.\n     *\n     * CAUTION: Not all merkle trees admit multiproofs. To use multiproofs, it is sufficient to ensure that: 1) the tree\n     * is complete (but not necessarily perfect), 2) the leaves to be proven are in the opposite order they are in the\n     * tree (i.e., as seen from right to left starting at the deepest layer and continuing at the next layer).\n     *\n     * _Available since v4.7._\n     */\n    function processMultiProof(\n        bytes32[] memory proof,\n        bool[] memory proofFlags,\n        bytes32[] memory leaves\n    ) internal pure returns (bytes32 merkleRoot) {\n        // This function rebuilds the root hash by traversing the tree up from the leaves. The root is rebuilt by\n        // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the\n        // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of\n        // the merkle tree.\n        uint256 leavesLen = leaves.length;\n        uint256 proofLen = proof.length;\n        uint256 totalHashes = proofFlags.length;\n\n        // Check proof validity.\n        require(leavesLen + proofLen - 1 == totalHashes, \"MerkleProof: invalid multiproof\");\n\n        // The xxxPos values are \"pointers\" to the next value to consume in each array. All accesses are done using\n        // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's \"pop\".\n        bytes32[] memory hashes = new bytes32[](totalHashes);\n        uint256 leafPos = 0;\n        uint256 hashPos = 0;\n        uint256 proofPos = 0;\n        // At each step, we compute the next hash using two values:\n        // - a value from the \"main queue\". If not all leaves have been consumed, we get the next leaf, otherwise we\n        //   get the next hash.\n        // - depending on the flag, either another value from the \"main queue\" (merging branches) or an element from the\n        //   `proof` array.\n        for (uint256 i = 0; i < totalHashes; i++) {\n            bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];\n            bytes32 b = proofFlags[i]\n                ? (leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++])\n                : proof[proofPos++];\n            hashes[i] = _hashPair(a, b);\n        }\n\n        if (totalHashes > 0) {\n            require(proofPos == proofLen, \"MerkleProof: invalid multiproof\");\n            unchecked {\n                return hashes[totalHashes - 1];\n            }\n        } else if (leavesLen > 0) {\n            return leaves[0];\n        } else {\n            return proof[0];\n        }\n    }\n\n    /**\n     * @dev Calldata version of {processMultiProof}.\n     *\n     * CAUTION: Not all merkle trees admit multiproofs. See {processMultiProof} for details.\n     *\n     * _Available since v4.7._\n     */\n    function processMultiProofCalldata(\n        bytes32[] calldata proof,\n        bool[] calldata proofFlags,\n        bytes32[] memory leaves\n    ) internal pure returns (bytes32 merkleRoot) {\n        // This function rebuilds the root hash by traversing the tree up from the leaves. The root is rebuilt by\n        // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the\n        // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of\n        // the merkle tree.\n        uint256 leavesLen = leaves.length;\n        uint256 proofLen = proof.length;\n        uint256 totalHashes = proofFlags.length;\n\n        // Check proof validity.\n        require(leavesLen + proofLen - 1 == totalHashes, \"MerkleProof: invalid multiproof\");\n\n        // The xxxPos values are \"pointers\" to the next value to consume in each array. All accesses are done using\n        // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's \"pop\".\n        bytes32[] memory hashes = new bytes32[](totalHashes);\n        uint256 leafPos = 0;\n        uint256 hashPos = 0;\n        uint256 proofPos = 0;\n        // At each step, we compute the next hash using two values:\n        // - a value from the \"main queue\". If not all leaves have been consumed, we get the next leaf, otherwise we\n        //   get the next hash.\n        // - depending on the flag, either another value from the \"main queue\" (merging branches) or an element from the\n        //   `proof` array.\n        for (uint256 i = 0; i < totalHashes; i++) {\n            bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];\n            bytes32 b = proofFlags[i]\n                ? (leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++])\n                : proof[proofPos++];\n            hashes[i] = _hashPair(a, b);\n        }\n\n        if (totalHashes > 0) {\n            require(proofPos == proofLen, \"MerkleProof: invalid multiproof\");\n            unchecked {\n                return hashes[totalHashes - 1];\n            }\n        } else if (leavesLen > 0) {\n            return leaves[0];\n        } else {\n            return proof[0];\n        }\n    }\n\n    function _hashPair(bytes32 a, bytes32 b) private pure returns (bytes32) {\n        return a < b ? _efficientHash(a, b) : _efficientHash(b, a);\n    }\n\n    function _efficientHash(bytes32 a, bytes32 b) private pure returns (bytes32 value) {\n        /// @solidity memory-safe-assembly\n        assembly {\n            mstore(0x00, a)\n            mstore(0x20, b)\n            value := keccak256(0x00, 0x40)\n        }\n    }\n}\n"
      },
      "@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC165Upgradeable.sol\";\nimport {Initializable} from \"../../proxy/utils/Initializable.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 ERC165Upgradeable is Initializable, IERC165Upgradeable {\n    function __ERC165_init() internal onlyInitializing {\n    }\n\n    function __ERC165_init_unchained() internal onlyInitializing {\n    }\n    /**\n     * @dev See {IERC165-supportsInterface}.\n     */\n    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n        return interfaceId == type(IERC165Upgradeable).interfaceId;\n    }\n\n    /**\n     * @dev This empty reserved space is put in place to allow future versions to add new\n     * variables without shifting down storage in the inheritance chain.\n     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n     */\n    uint256[50] private __gap;\n}\n"
      },
      "@openzeppelin/contracts-upgradeable/utils/introspection/IERC165Upgradeable.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 IERC165Upgradeable {\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"
      },
      "@openzeppelin/contracts/token/ERC20/IERC20.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20 {\n    /**\n     * @dev Emitted when `value` tokens are moved from one account (`from`) to\n     * another (`to`).\n     *\n     * Note that `value` may be zero.\n     */\n    event Transfer(address indexed from, address indexed to, uint256 value);\n\n    /**\n     * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n     * a call to {approve}. `value` is the new allowance.\n     */\n    event Approval(address indexed owner, address indexed spender, uint256 value);\n\n    /**\n     * @dev Returns the amount of tokens in existence.\n     */\n    function totalSupply() external view returns (uint256);\n\n    /**\n     * @dev Returns the amount of tokens owned by `account`.\n     */\n    function balanceOf(address account) external view returns (uint256);\n\n    /**\n     * @dev Moves `amount` tokens from the caller's account to `to`.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transfer(address to, uint256 amount) external returns (bool);\n\n    /**\n     * @dev Returns the remaining number of tokens that `spender` will be\n     * allowed to spend on behalf of `owner` through {transferFrom}. This is\n     * zero by default.\n     *\n     * This value changes when {approve} or {transferFrom} are called.\n     */\n    function allowance(address owner, address spender) external view returns (uint256);\n\n    /**\n     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * IMPORTANT: Beware that changing an allowance with this method brings the risk\n     * that someone may use both the old and the new allowance by unfortunate\n     * transaction ordering. One possible solution to mitigate this race\n     * condition is to first reduce the spender's allowance to 0 and set the\n     * desired value afterwards:\n     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n     *\n     * Emits an {Approval} event.\n     */\n    function approve(address spender, uint256 amount) external returns (bool);\n\n    /**\n     * @dev Moves `amount` tokens from `from` to `to` using the\n     * allowance mechanism. `amount` is then deducted from the caller's\n     * allowance.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transferFrom(address from, address to, uint256 amount) external returns (bool);\n}\n"
      },
      "@openzeppelin/contracts/token/ERC721/IERC721.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC721/IERC721.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../utils/introspection/IERC165.sol\";\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ninterface IERC721 is IERC165 {\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 (`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     *\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 by either {approve} or {setApprovalForAll}.\n     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n     *\n     * Emits a {Transfer} event.\n     */\n    function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external;\n\n    /**\n     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n     * are aware of the ERC721 protocol 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 have been allowed to move this token by either {approve} or {setApprovalForAll}.\n     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n     *\n     * Emits a {Transfer} event.\n     */\n    function safeTransferFrom(address from, address to, uint256 tokenId) external;\n\n    /**\n     * @dev Transfers `tokenId` token from `from` to `to`.\n     *\n     * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721\n     * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must\n     * understand this adds an external call which potentially creates a reentrancy vulnerability.\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 by either {approve} or {setApprovalForAll}.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transferFrom(address from, address to, uint256 tokenId) 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 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} 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"
      },
      "@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"
      },
      "closedsea/src/OperatorFilterer.sol": {
        "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.4;\n\n/// @notice Optimized and flexible operator filterer to abide to OpenSea's\n/// mandatory on-chain royalty enforcement in order for new collections to\n/// receive royalties.\n/// For more information, see:\n/// See: https://github.com/ProjectOpenSea/operator-filter-registry\nabstract contract OperatorFilterer {\n    /// @dev The default OpenSea operator blocklist subscription.\n    address internal constant _DEFAULT_SUBSCRIPTION = 0x3cc6CddA760b79bAfa08dF41ECFA224f810dCeB6;\n\n    /// @dev The OpenSea operator filter registry.\n    address internal constant _OPERATOR_FILTER_REGISTRY = 0x000000000000AAeB6D7670E522A718067333cd4E;\n\n    /// @dev Registers the current contract to OpenSea's operator filter,\n    /// and subscribe to the default OpenSea operator blocklist.\n    /// Note: Will not revert nor update existing settings for repeated registration.\n    function _registerForOperatorFiltering() internal virtual {\n        _registerForOperatorFiltering(_DEFAULT_SUBSCRIPTION, true);\n    }\n\n    /// @dev Registers the current contract to OpenSea's operator filter.\n    /// Note: Will not revert nor update existing settings for repeated registration.\n    function _registerForOperatorFiltering(address subscriptionOrRegistrantToCopy, bool subscribe)\n        internal\n        virtual\n    {\n        /// @solidity memory-safe-assembly\n        assembly {\n            let functionSelector := 0x7d3e3dbe // `registerAndSubscribe(address,address)`.\n\n            // Clean the upper 96 bits of `subscriptionOrRegistrantToCopy` in case they are dirty.\n            subscriptionOrRegistrantToCopy := shr(96, shl(96, subscriptionOrRegistrantToCopy))\n\n            for {} iszero(subscribe) {} {\n                if iszero(subscriptionOrRegistrantToCopy) {\n                    functionSelector := 0x4420e486 // `register(address)`.\n                    break\n                }\n                functionSelector := 0xa0af2903 // `registerAndCopyEntries(address,address)`.\n                break\n            }\n            // Store the function selector.\n            mstore(0x00, shl(224, functionSelector))\n            // Store the `address(this)`.\n            mstore(0x04, address())\n            // Store the `subscriptionOrRegistrantToCopy`.\n            mstore(0x24, subscriptionOrRegistrantToCopy)\n            // Register into the registry.\n            if iszero(call(gas(), _OPERATOR_FILTER_REGISTRY, 0, 0x00, 0x44, 0x00, 0x04)) {\n                // If the function selector has not been overwritten,\n                // it is an out-of-gas error.\n                if eq(shr(224, mload(0x00)), functionSelector) {\n                    // To prevent gas under-estimation.\n                    revert(0, 0)\n                }\n            }\n            // Restore the part of the free memory pointer that was overwritten,\n            // which is guaranteed to be zero, because of Solidity's memory size limits.\n            mstore(0x24, 0)\n        }\n    }\n\n    /// @dev Modifier to guard a function and revert if the caller is a blocked operator.\n    modifier onlyAllowedOperator(address from) virtual {\n        if (from != msg.sender) {\n            if (!_isPriorityOperator(msg.sender)) {\n                if (_operatorFilteringEnabled()) _revertIfBlocked(msg.sender);\n            }\n        }\n        _;\n    }\n\n    /// @dev Modifier to guard a function from approving a blocked operator..\n    modifier onlyAllowedOperatorApproval(address operator) virtual {\n        if (!_isPriorityOperator(operator)) {\n            if (_operatorFilteringEnabled()) _revertIfBlocked(operator);\n        }\n        _;\n    }\n\n    /// @dev Helper function that reverts if the `operator` is blocked by the registry.\n    function _revertIfBlocked(address operator) private view {\n        /// @solidity memory-safe-assembly\n        assembly {\n            // Store the function selector of `isOperatorAllowed(address,address)`,\n            // shifted left by 6 bytes, which is enough for 8tb of memory.\n            // We waste 6-3 = 3 bytes to save on 6 runtime gas (PUSH1 0x224 SHL).\n            mstore(0x00, 0xc6171134001122334455)\n            // Store the `address(this)`.\n            mstore(0x1a, address())\n            // Store the `operator`.\n            mstore(0x3a, operator)\n\n            // `isOperatorAllowed` always returns true if it does not revert.\n            if iszero(staticcall(gas(), _OPERATOR_FILTER_REGISTRY, 0x16, 0x44, 0x00, 0x00)) {\n                // Bubble up the revert if the staticcall reverts.\n                returndatacopy(0x00, 0x00, returndatasize())\n                revert(0x00, returndatasize())\n            }\n\n            // We'll skip checking if `from` is inside the blacklist.\n            // Even though that can block transferring out of wrapper contracts,\n            // we don't want tokens to be stuck.\n\n            // Restore the part of the free memory pointer that was overwritten,\n            // which is guaranteed to be zero, if less than 8tb of memory is used.\n            mstore(0x3a, 0)\n        }\n    }\n\n    /// @dev For deriving contracts to override, so that operator filtering\n    /// can be turned on / off.\n    /// Returns true by default.\n    function _operatorFilteringEnabled() internal view virtual returns (bool) {\n        return true;\n    }\n\n    /// @dev For deriving contracts to override, so that preferred marketplaces can\n    /// skip operator filtering, helping users save gas.\n    /// Returns false for all inputs by default.\n    function _isPriorityOperator(address) internal view virtual returns (bool) {\n        return false;\n    }\n}\n"
      },
      "contracts/Gamblor.sol": {
        "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.22;\n\nimport \"@openzeppelin/contracts/token/ERC721/IERC721.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\nimport {MerkleProofUpgradeable} from \"@openzeppelin/contracts-upgradeable/utils/cryptography/MerkleProofUpgradeable.sol\";\nimport {IERC721AUpgradeable, ERC721AUpgradeable} from \"erc721a-upgradeable/contracts/ERC721AUpgradeable.sol\";\nimport {ERC721AQueryableUpgradeable} from \"erc721a-upgradeable/contracts/extensions/ERC721AQueryableUpgradeable.sol\";\nimport {ERC721ABurnableUpgradeable} from \"erc721a-upgradeable/contracts/extensions/ERC721ABurnableUpgradeable.sol\";\nimport {OwnableUpgradeable} from \"@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol\";\nimport {IERC2981Upgradeable, ERC2981Upgradeable} from \"@openzeppelin/contracts-upgradeable/token/common/ERC2981Upgradeable.sol\";\nimport {OperatorFilterer} from \"closedsea/src/OperatorFilterer.sol\";\nimport \"./interfaces/IDelegateRegistry.sol\";\n\ncontract Gamblor is\n    ERC721AQueryableUpgradeable,\n    ERC721ABurnableUpgradeable,\n    OperatorFilterer,\n    OwnableUpgradeable,\n    ERC2981Upgradeable\n    {\n    /// @dev Treasury wallet\n    address public treasury;\n\n    /// @dev Maximum total supply\n    uint256 public maxTotalSupply;\n\n    /// @dev Maximum amount of mints per wallet\n    uint256 public maxPerWallet;\n\n    /// @dev Prices in wei of mints\n    uint256 public price;\n    uint256 public priceInStables;\n\n    /// @dev The mint start time\n    uint256 public liveAt;\n\n    /// @dev The mint end time\n    uint256 public endsAt;\n\n    /// @dev The base uri for token metadata\n    string public baseURI;\n\n    /// @dev The hidden uri for token metadata\n    string public hiddenURI;\n\n    /// @dev Determine whether to show hidden or revealed metadata\n    bool public isHidden;\n\n    /// @dev Determine at a global level if tokens can be traded\n    bool public isLocked;\n\n    /// @dev The whitelist merkle root\n    bytes32 public merkleRoot;\n\n    /// @dev Operator filter enabled\n    bool public operatorFilteringEnabled;\n\n    /// @notice Delegation registry\n    address public delegationRegistryAddress;\n\n    /// @notice Token contract addresses accepted\n    mapping(address => bool) public allowedTokens;\n\n    error MaxSupplyReached();\n    error MaxMintedPerWallet();\n    error InsufficientFunds();\n    error UnsupportedToken();\n    error NotApproved();\n    error InvalidMerkle();\n    error NotLive();\n    error InvalidDelegate();\n    error FailedToWithdraw();\n    error LockedNFT();\n\n    modifier canTrade() {\n        if (isLocked) revert LockedNFT();\n        _;\n    }\n\n    modifier isDelegate(address vault) {\n        bool isDelegateValid = IDelegateRegistry(delegationRegistryAddress)\n        .checkDelegateForContract(msg.sender, vault, address(this), \"\");\n        if (!isDelegateValid) revert InvalidDelegate();\n        _;\n    }\n\n    function initialize(\n        address _treasury,\n        address _delegationRegistryAddress,\n        string calldata _hiddenURI\n    ) public initializer initializerERC721A {\n        __ERC721A_init(\"Gamblor\", \"GAMNFT\");\n        __Ownable_init();\n        __ERC2981_init();\n\n        // Initialize filter registry\n        _registerForOperatorFiltering();\n        operatorFilteringEnabled = true;\n        _setDefaultRoyalty(msg.sender, 500);\n\n        // Set external contract integrations\n        delegationRegistryAddress = _delegationRegistryAddress;\n\n        // Mint conditionals\n        maxTotalSupply = 100;\n        maxPerWallet = 3;\n\n        // Pricing\n        price = 0.85 ether;\n        priceInStables = 2500 * (10 ** 6);\n\n        // Mint window\n        liveAt = 1713405728;\n        endsAt = 1745985600;\n\n        // Metadata\n        hiddenURI = _hiddenURI;\n        isHidden = true;\n\n        // Tradeable\n        isLocked = true;\n\n        // Treasurer\n        treasury = _treasury;\n\n        // Stable ERC20 references\n        allowedTokens[0xdAC17F958D2ee523a2206206994597C13D831ec7] = true;\n        allowedTokens[0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48] = true;\n\n    }\n\n    /// @dev Overrides the starting token ID\n    function _startTokenId() internal view virtual override returns (uint256) {\n        return 1;\n    }\n\n    /// @dev Overrides base URI\n    function _baseURI() internal view virtual override returns (string memory) {\n        return baseURI;\n    }\n\n    /// @notice Whitelist mint\n    function mint(\n        uint256 quantity,\n        bytes32[] calldata proof\n    ) external payable {\n        if (quantity * price != msg.value) revert InsufficientFunds();\n        _mint(quantity, proof, msg.sender);\n    }\n\n    /// @notice Delegated mint option\n    function mintDelegated(\n        uint256 quantity,\n        bytes32[] calldata proof,\n        address vault\n    ) external payable isDelegate(vault) {\n        if (quantity * price != msg.value) revert InsufficientFunds();\n        _mint(quantity, proof, vault);\n    }\n\n    /// @notice Whitelist mint in supported stable tokens\n    function mintInStables(\n        uint256 quantity,\n        bytes32[] calldata proof,\n        address tokenAddress\n    ) external payable {\n        if (!allowedTokens[tokenAddress]) revert UnsupportedToken();\n        uint256 allowance = IERC20(tokenAddress).allowance(msg.sender, address(this));\n\n        if (allowance < priceInStables * quantity) revert NotApproved();\n\n        bool success = IERC20(tokenAddress).transferFrom(msg.sender, address(this), priceInStables * quantity);\n        if (!success) revert InsufficientFunds();\n\n        _mint(quantity, proof, msg.sender);\n    }\n\n    /**\n     * @dev Internal impl of mint\n     * @param quantity The amount of whitelist mint\n     * @param proof The merkle proof to allow minting\n     * @param vault The address to mint to\n     */\n    function _mint(\n        uint256 quantity,\n        bytes32[] calldata proof,\n        address vault\n    ) internal {\n        if (block.timestamp < liveAt || block.timestamp > endsAt) revert NotLive();\n        if (_numberMinted(vault) + quantity > maxPerWallet) revert MaxMintedPerWallet();\n        if (totalSupply() + quantity > maxTotalSupply) revert MaxSupplyReached();\n        bytes32 leaf = keccak256(abi.encodePacked(vault));\n        if (!MerkleProofUpgradeable.verify(proof, merkleRoot, leaf)) revert InvalidMerkle();\n        _mint(vault, quantity);\n    }\n\n    /**\n     * @notice Token URI\n     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.\n     * @param tokenId The amount of mints\n     */\n    function tokenURI(\n        uint256 tokenId\n    )\n    public\n    view\n    virtual\n    override(IERC721AUpgradeable, ERC721AUpgradeable)\n    returns (string memory)\n    {\n        if (!_exists(tokenId)) revert URIQueryForNonexistentToken();\n        if (isHidden) return hiddenURI;\n        return bytes(_baseURI()).length != 0 ? string(abi.encodePacked(_baseURI(), _toString(tokenId))) : \"\";\n    }\n\n    /**\n     * @notice Owner mint\n     * @param to The address to send nfts\n     * @param quantity The amount of mints\n     */\n    function ownerMint(address to, uint256 quantity) external payable onlyOwner {\n        if (totalSupply() + quantity > maxTotalSupply) revert MaxSupplyReached();\n        _mint(to, quantity);\n    }\n\n    /**\n     * @notice Sets base uri\n     * @param baseURI_ The base uri to use\n     */\n    function setBaseURI(string calldata baseURI_) external onlyOwner {\n        baseURI = baseURI_;\n    }\n\n    /**\n     * @notice Sets whether to use a hidden uri or not\n     * @param _isHidden The hidden uri to use\n     */\n    function setIsHidden(bool _isHidden) external onlyOwner {\n        isHidden = _isHidden;\n    }\n\n    /**\n     * @notice Sets the merkle root for the whitelist\n     * @param _merkleRoot The merkle root value\n     */\n    function setMerkleRoot(bytes32 _merkleRoot) external onlyOwner {\n        merkleRoot = _merkleRoot;\n    }\n\n    /**\n     * @notice Sets up a time based mint window\n     * @param _liveAt The live at unix timestamp\n     * @param _endsAt The end at unix timestamp\n     */\n    function setMintWindow(\n        uint256 _liveAt,\n        uint256 _endsAt\n    ) external onlyOwner {\n        liveAt = _liveAt;\n        endsAt = _endsAt;\n    }\n\n    /**\n     * @notice Sets the mint price\n     * @param _price The price in wei\n     * @param _priceInStables The stables price in wei\n     */\n    function setPrices(uint256 _price, uint256 _priceInStables) external onlyOwner {\n        price = _price;\n        priceInStables = _priceInStables * (10 ** 6);\n    }\n\n    /**\n     * @notice Sets max total supply\n     * @param _maxTotalSupply The max total supply for the collection\n     */\n    function setMaxTotalSupply(uint256 _maxTotalSupply) external onlyOwner {\n        maxTotalSupply = _maxTotalSupply;\n    }\n\n    /**\n     * @notice Sets the max per wallet\n     * @param _maxPerWallet The max mint count per address\n     */\n    function setMaxPerWallet(uint256 _maxPerWallet) external onlyOwner {\n        maxPerWallet = _maxPerWallet;\n    }\n\n    /**\n     * @notice Sets the treasury\n     * @param _treasury The treasury address\n     */\n    function setTreasury(address _treasury) external onlyOwner {\n        treasury = _treasury;\n    }\n\n    /**\n     * @notice Sets whether an nft is tradeable or not\n     * @param _isLocked Whether nfts are locked or not\n     */\n    function setGlobalLocked(bool _isLocked) external onlyOwner {\n        isLocked = _isLocked;\n    }\n\n    /**\n     * @notice Sets up allowed token addresses\n     * @param _tokenAddress Token address argument\n     * @param _isAllowedToken Whether a token is allowed or not\n     */\n    function setAllowedTokenAddress(address _tokenAddress, bool _isAllowedToken) public onlyOwner {\n        allowedTokens[_tokenAddress] = _isAllowedToken;\n    }\n\n    /**\n     * @notice Sets the delegation registry address\n     * @param _delegationRegistryAddress The delegation registry address to use\n     */\n    function setDelegationRegistryAddress(\n        address _delegationRegistryAddress\n    ) external onlyOwner {\n        delegationRegistryAddress = _delegationRegistryAddress;\n    }\n\n    function setApprovalForAll(\n        address operator,\n        bool approved\n    )\n    public\n    override(IERC721AUpgradeable, ERC721AUpgradeable)\n    canTrade\n    onlyAllowedOperatorApproval(operator)\n    {\n        super.setApprovalForAll(operator, approved);\n    }\n\n    function approve(\n        address operator,\n        uint256 tokenId\n    )\n    public\n    payable\n    override(IERC721AUpgradeable, ERC721AUpgradeable)\n    canTrade\n    onlyAllowedOperatorApproval(operator)\n    {\n        super.approve(operator, tokenId);\n    }\n\n    function transferFrom(\n        address from,\n        address to,\n        uint256 tokenId\n    )\n    public\n    payable\n    override(IERC721AUpgradeable, ERC721AUpgradeable)\n    canTrade\n    onlyAllowedOperator(from)\n    {\n        super.transferFrom(from, to, tokenId);\n    }\n\n    function safeTransferFrom(\n        address from,\n        address to,\n        uint256 tokenId\n    )\n    public\n    payable\n    override(IERC721AUpgradeable, ERC721AUpgradeable)\n    canTrade\n    onlyAllowedOperator(from)\n    {\n        super.safeTransferFrom(from, to, tokenId);\n    }\n\n    function safeTransferFrom(\n        address from,\n        address to,\n        uint256 tokenId,\n        bytes memory data\n    )\n    public\n    payable\n    override(IERC721AUpgradeable, ERC721AUpgradeable)\n    canTrade\n    onlyAllowedOperator(from)\n    {\n        super.safeTransferFrom(from, to, tokenId, data);\n    }\n\n    function supportsInterface(\n        bytes4 interfaceId\n    )\n    public\n    view\n    virtual\n    override(IERC721AUpgradeable, ERC721AUpgradeable, ERC2981Upgradeable)\n    returns (bool)\n    {\n        return ERC721AUpgradeable.supportsInterface(interfaceId) || ERC2981Upgradeable.supportsInterface(interfaceId);\n    }\n\n    function setDefaultRoyalty(\n        address receiver,\n        uint96 feeNumerator\n    ) public onlyOwner {\n        _setDefaultRoyalty(receiver, feeNumerator);\n    }\n\n    function setOperatorFilteringEnabled(bool value) public onlyOwner {\n        operatorFilteringEnabled = value;\n    }\n\n    function _operatorFilteringEnabled() internal view override returns (bool) {\n        return operatorFilteringEnabled;\n    }\n\n    function withdraw() external onlyOwner {\n        (bool success,) = payable(treasury).call{value : address(this).balance}(\"\");\n        if (!success) revert FailedToWithdraw();\n    }\n\n    function withdrawERC20(address _tokenAddress) external onlyOwner {\n        uint256 balance = IERC20(_tokenAddress).balanceOf(address(this));\n        IERC20(_tokenAddress).transfer(treasury, balance);\n    }\n}\n"
      },
      "contracts/interfaces/IDelegateRegistry.sol": {
        "content": "// SPDX-License-Identifier: CC0-1.0\r\npragma solidity >=0.8.13;\r\n\r\n/**\r\n * @title IDelegateRegistry\r\n * @custom:version 2.0\r\n * @custom:author foobar (0xfoobar)\r\n * @notice A standalone immutable registry storing delegated permissions from one address to another\r\n */\r\ninterface IDelegateRegistry {\r\n    /// @notice Delegation type, NONE is used when a delegation does not exist or is revoked\r\n    enum DelegationType {\r\n        NONE,\r\n        ALL,\r\n        CONTRACT,\r\n        ERC721,\r\n        ERC20,\r\n        ERC1155\r\n    }\r\n\r\n    /// @notice Struct for returning delegations\r\n    struct Delegation {\r\n        DelegationType type_;\r\n        address to;\r\n        address from;\r\n        bytes32 rights;\r\n        address contract_;\r\n        uint256 tokenId;\r\n        uint256 amount;\r\n    }\r\n\r\n    /// @notice Emitted when an address delegates or revokes rights for their entire wallet\r\n    event DelegateAll(address indexed from, address indexed to, bytes32 rights, bool enable);\r\n\r\n    /// @notice Emitted when an address delegates or revokes rights for a contract address\r\n    event DelegateContract(address indexed from, address indexed to, address indexed contract_, bytes32 rights, bool enable);\r\n\r\n    /// @notice Emitted when an address delegates or revokes rights for an ERC721 tokenId\r\n    event DelegateERC721(address indexed from, address indexed to, address indexed contract_, uint256 tokenId, bytes32 rights, bool enable);\r\n\r\n    /// @notice Emitted when an address delegates or revokes rights for an amount of ERC20 tokens\r\n    event DelegateERC20(address indexed from, address indexed to, address indexed contract_, bytes32 rights, uint256 amount);\r\n\r\n    /// @notice Emitted when an address delegates or revokes rights for an amount of an ERC1155 tokenId\r\n    event DelegateERC1155(address indexed from, address indexed to, address indexed contract_, uint256 tokenId, bytes32 rights, uint256 amount);\r\n\r\n    /// @notice Thrown if multicall calldata is malformed\r\n    error MulticallFailed();\r\n\r\n    /**\r\n     * -----------  WRITE -----------\r\n     */\r\n\r\n    /**\r\n     * @notice Call multiple functions in the current contract and return the data from all of them if they all succeed\r\n     * @param data The encoded function data for each of the calls to make to this contract\r\n     * @return results The results from each of the calls passed in via data\r\n     */\r\n    function multicall(bytes[] calldata data) external payable returns (bytes[] memory results);\r\n\r\n    /**\r\n     * @notice Allow the delegate to act on behalf of `msg.sender` for all contracts\r\n     * @param to The address to act as delegate\r\n     * @param rights Specific subdelegation rights granted to the delegate, pass an empty bytestring to encompass all rights\r\n     * @param enable Whether to enable or disable this delegation, true delegates and false revokes\r\n     * @return delegationHash The unique identifier of the delegation\r\n     */\r\n    function delegateAll(address to, bytes32 rights, bool enable) external payable returns (bytes32 delegationHash);\r\n\r\n    /**\r\n     * @notice Allow the delegate to act on behalf of `msg.sender` for a specific contract\r\n     * @param to The address to act as delegate\r\n     * @param contract_ The contract whose rights are being delegated\r\n     * @param rights Specific subdelegation rights granted to the delegate, pass an empty bytestring to encompass all rights\r\n     * @param enable Whether to enable or disable this delegation, true delegates and false revokes\r\n     * @return delegationHash The unique identifier of the delegation\r\n     */\r\n    function delegateContract(address to, address contract_, bytes32 rights, bool enable) external payable returns (bytes32 delegationHash);\r\n\r\n    /**\r\n     * @notice Allow the delegate to act on behalf of `msg.sender` for a specific ERC721 token\r\n     * @param to The address to act as delegate\r\n     * @param contract_ The contract whose rights are being delegated\r\n     * @param tokenId The token id to delegate\r\n     * @param rights Specific subdelegation rights granted to the delegate, pass an empty bytestring to encompass all rights\r\n     * @param enable Whether to enable or disable this delegation, true delegates and false revokes\r\n     * @return delegationHash The unique identifier of the delegation\r\n     */\r\n    function delegateERC721(address to, address contract_, uint256 tokenId, bytes32 rights, bool enable) external payable returns (bytes32 delegationHash);\r\n\r\n    /**\r\n     * @notice Allow the delegate to act on behalf of `msg.sender` for a specific amount of ERC20 tokens\r\n     * @dev The actual amount is not encoded in the hash, just the existence of a amount (since it is an upper bound)\r\n     * @param to The address to act as delegate\r\n     * @param contract_ The address for the fungible token contract\r\n     * @param rights Specific subdelegation rights granted to the delegate, pass an empty bytestring to encompass all rights\r\n     * @param amount The amount to delegate, > 0 delegates and 0 revokes\r\n     * @return delegationHash The unique identifier of the delegation\r\n     */\r\n    function delegateERC20(address to, address contract_, bytes32 rights, uint256 amount) external payable returns (bytes32 delegationHash);\r\n\r\n    /**\r\n     * @notice Allow the delegate to act on behalf of `msg.sender` for a specific amount of ERC1155 tokens\r\n     * @dev The actual amount is not encoded in the hash, just the existence of a amount (since it is an upper bound)\r\n     * @param to The address to act as delegate\r\n     * @param contract_ The address of the contract that holds the token\r\n     * @param tokenId The token id to delegate\r\n     * @param rights Specific subdelegation rights granted to the delegate, pass an empty bytestring to encompass all rights\r\n     * @param amount The amount of that token id to delegate, > 0 delegates and 0 revokes\r\n     * @return delegationHash The unique identifier of the delegation\r\n     */\r\n    function delegateERC1155(address to, address contract_, uint256 tokenId, bytes32 rights, uint256 amount) external payable returns (bytes32 delegationHash);\r\n\r\n    /**\r\n     * ----------- CHECKS -----------\r\n     */\r\n\r\n    /**\r\n     * @notice Check if `to` is a delegate of `from` for the entire wallet\r\n     * @param to The potential delegate address\r\n     * @param from The potential address who delegated rights\r\n     * @param rights Specific rights to check for, pass the zero value to ignore subdelegations and check full delegations only\r\n     * @return valid Whether delegate is granted to act on the from's behalf\r\n     */\r\n    function checkDelegateForAll(address to, address from, bytes32 rights) external view returns (bool);\r\n\r\n    /**\r\n     * @notice Check if `to` is a delegate of `from` for the specified `contract_` or the entire wallet\r\n     * @param to The delegated address to check\r\n     * @param contract_ The specific contract address being checked\r\n     * @param from The cold wallet who issued the delegation\r\n     * @param rights Specific rights to check for, pass the zero value to ignore subdelegations and check full delegations only\r\n     * @return valid Whether delegate is granted to act on from's behalf for entire wallet or that specific contract\r\n     */\r\n    function checkDelegateForContract(address to, address from, address contract_, bytes32 rights) external view returns (bool);\r\n\r\n    /**\r\n     * @notice Check if `to` is a delegate of `from` for the specific `contract` and `tokenId`, the entire `contract_`, or the entire wallet\r\n     * @param to The delegated address to check\r\n     * @param contract_ The specific contract address being checked\r\n     * @param tokenId The token id for the token to delegating\r\n     * @param from The wallet that issued the delegation\r\n     * @param rights Specific rights to check for, pass the zero value to ignore subdelegations and check full delegations only\r\n     * @return valid Whether delegate is granted to act on from's behalf for entire wallet, that contract, or that specific tokenId\r\n     */\r\n    function checkDelegateForERC721(address to, address from, address contract_, uint256 tokenId, bytes32 rights) external view returns (bool);\r\n\r\n    /**\r\n     * @notice Returns the amount of ERC20 tokens the delegate is granted rights to act on the behalf of\r\n     * @param to The delegated address to check\r\n     * @param contract_ The address of the token contract\r\n     * @param from The cold wallet who issued the delegation\r\n     * @param rights Specific rights to check for, pass the zero value to ignore subdelegations and check full delegations only\r\n     * @return balance The delegated balance, which will be 0 if the delegation does not exist\r\n     */\r\n    function checkDelegateForERC20(address to, address from, address contract_, bytes32 rights) external view returns (uint256);\r\n\r\n    /**\r\n     * @notice Returns the amount of a ERC1155 tokens the delegate is granted rights to act on the behalf of\r\n     * @param to The delegated address to check\r\n     * @param contract_ The address of the token contract\r\n     * @param tokenId The token id to check the delegated amount of\r\n     * @param from The cold wallet who issued the delegation\r\n     * @param rights Specific rights to check for, pass the zero value to ignore subdelegations and check full delegations only\r\n     * @return balance The delegated balance, which will be 0 if the delegation does not exist\r\n     */\r\n    function checkDelegateForERC1155(address to, address from, address contract_, uint256 tokenId, bytes32 rights) external view returns (uint256);\r\n\r\n    /**\r\n     * ----------- ENUMERATIONS -----------\r\n     */\r\n\r\n    /**\r\n     * @notice Returns all enabled delegations a given delegate has received\r\n     * @param to The address to retrieve delegations for\r\n     * @return delegations Array of Delegation structs\r\n     */\r\n    function getIncomingDelegations(address to) external view returns (Delegation[] memory delegations);\r\n\r\n    /**\r\n     * @notice Returns all enabled delegations an address has given out\r\n     * @param from The address to retrieve delegations for\r\n     * @return delegations Array of Delegation structs\r\n     */\r\n    function getOutgoingDelegations(address from) external view returns (Delegation[] memory delegations);\r\n\r\n    /**\r\n     * @notice Returns all hashes associated with enabled delegations an address has received\r\n     * @param to The address to retrieve incoming delegation hashes for\r\n     * @return delegationHashes Array of delegation hashes\r\n     */\r\n    function getIncomingDelegationHashes(address to) external view returns (bytes32[] memory delegationHashes);\r\n\r\n    /**\r\n     * @notice Returns all hashes associated with enabled delegations an address has given out\r\n     * @param from The address to retrieve outgoing delegation hashes for\r\n     * @return delegationHashes Array of delegation hashes\r\n     */\r\n    function getOutgoingDelegationHashes(address from) external view returns (bytes32[] memory delegationHashes);\r\n\r\n    /**\r\n     * @notice Returns the delegations for a given array of delegation hashes\r\n     * @param delegationHashes is an array of hashes that correspond to delegations\r\n     * @return delegations Array of Delegation structs, return empty structs for nonexistent or revoked delegations\r\n     */\r\n    function getDelegationsFromHashes(bytes32[] calldata delegationHashes) external view returns (Delegation[] memory delegations);\r\n\r\n    /**\r\n     * ----------- STORAGE ACCESS -----------\r\n     */\r\n\r\n    /**\r\n     * @notice Allows external contracts to read arbitrary storage slots\r\n     */\r\n    function readSlot(bytes32 location) external view returns (bytes32);\r\n\r\n    /**\r\n     * @notice Allows external contracts to read an arbitrary array of storage slots\r\n     */\r\n    function readSlots(bytes32[] calldata locations) external view returns (bytes32[] memory);\r\n}\r\n"
      },
      "erc721a-upgradeable/contracts/ERC721A__Initializable.sol": {
        "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\n/**\n * @dev This is a base contract to aid in writing upgradeable diamond facet contracts, or any kind of contract that will be deployed\n * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an\n * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer\n * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.\n *\n * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as\n * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.\n *\n * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure\n * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.\n */\n\nimport {ERC721A__InitializableStorage} from './ERC721A__InitializableStorage.sol';\n\nabstract contract ERC721A__Initializable {\n    using ERC721A__InitializableStorage for ERC721A__InitializableStorage.Layout;\n\n    /**\n     * @dev Modifier to protect an initializer function from being invoked twice.\n     */\n    modifier initializerERC721A() {\n        // If the contract is initializing we ignore whether _initialized is set in order to support multiple\n        // inheritance patterns, but we only do this in the context of a constructor, because in other contexts the\n        // contract may have been reentered.\n        require(\n            ERC721A__InitializableStorage.layout()._initializing\n                ? _isConstructor()\n                : !ERC721A__InitializableStorage.layout()._initialized,\n            'ERC721A__Initializable: contract is already initialized'\n        );\n\n        bool isTopLevelCall = !ERC721A__InitializableStorage.layout()._initializing;\n        if (isTopLevelCall) {\n            ERC721A__InitializableStorage.layout()._initializing = true;\n            ERC721A__InitializableStorage.layout()._initialized = true;\n        }\n\n        _;\n\n        if (isTopLevelCall) {\n            ERC721A__InitializableStorage.layout()._initializing = false;\n        }\n    }\n\n    /**\n     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the\n     * {initializer} modifier, directly or indirectly.\n     */\n    modifier onlyInitializingERC721A() {\n        require(\n            ERC721A__InitializableStorage.layout()._initializing,\n            'ERC721A__Initializable: contract is not initializing'\n        );\n        _;\n    }\n\n    /// @dev Returns true if and only if the function is running in the constructor\n    function _isConstructor() private view returns (bool) {\n        // extcodesize checks the size of the code stored in an address, and\n        // address returns the current address. Since the code is still not\n        // deployed when running a constructor, any checks on its code size will\n        // yield zero, making it an effective way to detect if a contract is\n        // under construction or not.\n        address self = address(this);\n        uint256 cs;\n        assembly {\n            cs := extcodesize(self)\n        }\n        return cs == 0;\n    }\n}\n"
      },
      "erc721a-upgradeable/contracts/ERC721A__InitializableStorage.sol": {
        "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.0;\n\n/**\n * @dev This is a base storage for the  initialization function for upgradeable diamond facet contracts\n **/\n\nlibrary ERC721A__InitializableStorage {\n    struct Layout {\n        /*\n         * Indicates that the contract has been initialized.\n         */\n        bool _initialized;\n        /*\n         * Indicates that the contract is in the process of being initialized.\n         */\n        bool _initializing;\n    }\n\n    bytes32 internal constant STORAGE_SLOT = keccak256('ERC721A.contracts.storage.initializable.facet');\n\n    function layout() internal pure returns (Layout storage l) {\n        bytes32 slot = STORAGE_SLOT;\n        assembly {\n            l.slot := slot\n        }\n    }\n}\n"
      },
      "erc721a-upgradeable/contracts/ERC721AStorage.sol": {
        "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.0;\n\nlibrary ERC721AStorage {\n    // Bypass for a `--via-ir` bug (https://github.com/chiru-labs/ERC721A/pull/364).\n    struct TokenApprovalRef {\n        address value;\n    }\n\n    struct Layout {\n        // =============================================================\n        //                            STORAGE\n        // =============================================================\n\n        // The next token ID to be minted.\n        uint256 _currentIndex;\n        // The number of tokens burned.\n        uint256 _burnCounter;\n        // Token name\n        string _name;\n        // Token symbol\n        string _symbol;\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) _packedOwnerships;\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) _packedAddressData;\n        // Mapping from token ID to approved address.\n        mapping(uint256 => ERC721AStorage.TokenApprovalRef) _tokenApprovals;\n        // Mapping from owner to operator approvals\n        mapping(address => mapping(address => bool)) _operatorApprovals;\n        // The amount of tokens minted above `_sequentialUpTo()`.\n        // We call these spot mints (i.e. non-sequential mints).\n        uint256 _spotMinted;\n    }\n\n    bytes32 internal constant STORAGE_SLOT = keccak256('ERC721A.contracts.storage.ERC721A');\n\n    function layout() internal pure returns (Layout storage l) {\n        bytes32 slot = STORAGE_SLOT;\n        assembly {\n            l.slot := slot\n        }\n    }\n}\n"
      },
      "erc721a-upgradeable/contracts/ERC721AUpgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// ERC721A Contracts v4.3.0\n// Creator: Chiru Labs\n\npragma solidity ^0.8.4;\n\nimport './IERC721AUpgradeable.sol';\nimport {ERC721AStorage} from './ERC721AStorage.sol';\nimport './ERC721A__Initializable.sol';\n\n/**\n * @dev Interface of ERC721 token receiver.\n */\ninterface ERC721A__IERC721ReceiverUpgradeable {\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 * The `_sequentialUpTo()` function can be overriden to enable spot mints\n * (i.e. non-consecutive mints) for `tokenId`s greater than `_sequentialUpTo()`.\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 ERC721AUpgradeable is ERC721A__Initializable, IERC721AUpgradeable {\n    using ERC721AStorage for ERC721AStorage.Layout;\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    //                          CONSTRUCTOR\n    // =============================================================\n\n    function __ERC721A_init(string memory name_, string memory symbol_) internal onlyInitializingERC721A {\n        __ERC721A_init_unchained(name_, symbol_);\n    }\n\n    function __ERC721A_init_unchained(string memory name_, string memory symbol_) internal onlyInitializingERC721A {\n        ERC721AStorage.layout()._name = name_;\n        ERC721AStorage.layout()._symbol = symbol_;\n        ERC721AStorage.layout()._currentIndex = _startTokenId();\n\n        if (_sequentialUpTo() < _startTokenId()) _revert(SequentialUpToTooSmall.selector);\n    }\n\n    // =============================================================\n    //                   TOKEN COUNTING OPERATIONS\n    // =============================================================\n\n    /**\n     * @dev Returns the starting token ID for sequential mints.\n     *\n     * Override this function to change the starting token ID for sequential mints.\n     *\n     * Note: The value returned must never change after any tokens have been minted.\n     */\n    function _startTokenId() internal view virtual returns (uint256) {\n        return 0;\n    }\n\n    /**\n     * @dev Returns the maximum token ID (inclusive) for sequential mints.\n     *\n     * Override this function to return a value less than 2**256 - 1,\n     * but greater than `_startTokenId()`, to enable spot (non-sequential) mints.\n     *\n     * Note: The value returned must never change after any tokens have been minted.\n     */\n    function _sequentialUpTo() internal view virtual returns (uint256) {\n        return type(uint256).max;\n    }\n\n    /**\n     * @dev Returns the next token ID to be minted.\n     */\n    function _nextTokenId() internal view virtual returns (uint256) {\n        return ERC721AStorage.layout()._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 result) {\n        // Counter underflow is impossible as `_burnCounter` cannot be incremented\n        // more than `_currentIndex + _spotMinted - _startTokenId()` times.\n        unchecked {\n            // With spot minting, the intermediate `result` can be temporarily negative,\n            // and the computation must be unchecked.\n            result = ERC721AStorage.layout()._currentIndex - ERC721AStorage.layout()._burnCounter - _startTokenId();\n            if (_sequentialUpTo() != type(uint256).max) result += ERC721AStorage.layout()._spotMinted;\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 result) {\n        // Counter underflow is impossible as `_currentIndex` does not decrement,\n        // and it is initialized to `_startTokenId()`.\n        unchecked {\n            result = ERC721AStorage.layout()._currentIndex - _startTokenId();\n            if (_sequentialUpTo() != type(uint256).max) result += ERC721AStorage.layout()._spotMinted;\n        }\n    }\n\n    /**\n     * @dev Returns the total number of tokens burned.\n     */\n    function _totalBurned() internal view virtual returns (uint256) {\n        return ERC721AStorage.layout()._burnCounter;\n    }\n\n    /**\n     * @dev Returns the total number of tokens that are spot-minted.\n     */\n    function _totalSpotMinted() internal view virtual returns (uint256) {\n        return ERC721AStorage.layout()._spotMinted;\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.selector);\n        return ERC721AStorage.layout()._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\n            (ERC721AStorage.layout()._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\n            (ERC721AStorage.layout()._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(ERC721AStorage.layout()._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 = ERC721AStorage.layout()._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        ERC721AStorage.layout()._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 ERC721AStorage.layout()._name;\n    }\n\n    /**\n     * @dev Returns the token collection symbol.\n     */\n    function symbol() public view virtual override returns (string memory) {\n        return ERC721AStorage.layout()._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.selector);\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(ERC721AStorage.layout()._packedOwnerships[index]);\n    }\n\n    /**\n     * @dev Returns whether the ownership slot at `index` is initialized.\n     * An uninitialized slot does not necessarily mean that the slot has no owner.\n     */\n    function _ownershipIsInitialized(uint256 index) internal view virtual returns (bool) {\n        return ERC721AStorage.layout()._packedOwnerships[index] != 0;\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 (ERC721AStorage.layout()._packedOwnerships[index] == 0) {\n            ERC721AStorage.layout()._packedOwnerships[index] = _packedOwnershipOf(index);\n        }\n    }\n\n    /**\n     * @dev Returns the packed ownership data of `tokenId`.\n     */\n    function _packedOwnershipOf(uint256 tokenId) private view returns (uint256 packed) {\n        if (_startTokenId() <= tokenId) {\n            packed = ERC721AStorage.layout()._packedOwnerships[tokenId];\n\n            if (tokenId > _sequentialUpTo()) {\n                if (_packedOwnershipExists(packed)) return packed;\n                _revert(OwnerQueryForNonexistentToken.selector);\n            }\n\n            // If the data at the starting slot does not exist, start the scan.\n            if (packed == 0) {\n                if (tokenId >= ERC721AStorage.layout()._currentIndex) _revert(OwnerQueryForNonexistentToken.selector);\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, `tokenId` will not underflow.\n                //\n                // We can directly compare the packed value.\n                // If the address is zero, packed will be zero.\n                for (;;) {\n                    unchecked {\n                        packed = ERC721AStorage.layout()._packedOwnerships[--tokenId];\n                    }\n                    if (packed == 0) continue;\n                    if (packed & _BITMASK_BURNED == 0) return packed;\n                    // Otherwise, the token is burned, and we must revert.\n                    // This handles the case of batch burned tokens, where only the burned bit\n                    // of the starting slot is set, and remaining slots are left uninitialized.\n                    _revert(OwnerQueryForNonexistentToken.selector);\n                }\n            }\n            // Otherwise, the data exists and we can skip the scan.\n            // This is possible because we have already achieved the target condition.\n            // This saves 2143 gas on transfers of initialized tokens.\n            // If the token is not burned, return `packed`. Otherwise, revert.\n            if (packed & _BITMASK_BURNED == 0) return packed;\n        }\n        _revert(OwnerQueryForNonexistentToken.selector);\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. See {ERC721A-_approve}.\n     *\n     * Requirements:\n     *\n     * - The caller must own the token or be an approved operator.\n     */\n    function approve(address to, uint256 tokenId) public payable virtual override {\n        _approve(to, tokenId, true);\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.selector);\n\n        return ERC721AStorage.layout()._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        ERC721AStorage.layout()._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 ERC721AStorage.layout()._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 result) {\n        if (_startTokenId() <= tokenId) {\n            if (tokenId > _sequentialUpTo())\n                return _packedOwnershipExists(ERC721AStorage.layout()._packedOwnerships[tokenId]);\n\n            if (tokenId < ERC721AStorage.layout()._currentIndex) {\n                uint256 packed;\n                while ((packed = ERC721AStorage.layout()._packedOwnerships[tokenId]) == 0) --tokenId;\n                result = packed & _BITMASK_BURNED == 0;\n            }\n        }\n    }\n\n    /**\n     * @dev Returns whether `packed` represents a token that exists.\n     */\n    function _packedOwnershipExists(uint256 packed) private pure returns (bool result) {\n        assembly {\n            // The following is equivalent to `owner != address(0) && burned == false`.\n            // Symbolically tested.\n            result := gt(and(packed, _BITMASK_ADDRESS), and(packed, _BITMASK_BURNED))\n        }\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        ERC721AStorage.TokenApprovalRef storage tokenApproval = ERC721AStorage.layout()._tokenApprovals[tokenId];\n        // The following is equivalent to `approvedAddress = _tokenApprovals[tokenId].value`.\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 payable virtual override {\n        uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);\n\n        // Mask `from` to the lower 160 bits, in case the upper bits somehow aren't clean.\n        from = address(uint160(uint256(uint160(from)) & _BITMASK_ADDRESS));\n\n        if (address(uint160(prevOwnershipPacked)) != from) _revert(TransferFromIncorrectOwner.selector);\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.selector);\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            --ERC721AStorage.layout()._packedAddressData[from]; // Updates: `balance -= 1`.\n            ++ERC721AStorage.layout()._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            ERC721AStorage.layout()._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 (ERC721AStorage.layout()._packedOwnerships[nextTokenId] == 0) {\n                    // If the next slot is within bounds.\n                    if (nextTokenId != ERC721AStorage.layout()._currentIndex) {\n                        // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`.\n                        ERC721AStorage.layout()._packedOwnerships[nextTokenId] = prevOwnershipPacked;\n                    }\n                }\n            }\n        }\n\n        // Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean.\n        uint256 toMasked = uint256(uint160(to)) & _BITMASK_ADDRESS;\n        assembly {\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                from, // `from`.\n                toMasked, // `to`.\n                tokenId // `tokenId`.\n            )\n        }\n        if (toMasked == 0) _revert(TransferToZeroAddress.selector);\n\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 payable 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 payable virtual override {\n        transferFrom(from, to, tokenId);\n        if (to.code.length != 0)\n            if (!_checkContractOnERC721Received(from, to, tokenId, _data)) {\n                _revert(TransferToNonERC721ReceiverImplementer.selector);\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\n            ERC721A__IERC721ReceiverUpgradeable(to).onERC721Received(_msgSenderERC721A(), from, tokenId, _data)\n        returns (bytes4 retval) {\n            return retval == ERC721A__IERC721ReceiverUpgradeable(to).onERC721Received.selector;\n        } catch (bytes memory reason) {\n            if (reason.length == 0) {\n                _revert(TransferToNonERC721ReceiverImplementer.selector);\n            }\n            assembly {\n                revert(add(32, reason), mload(reason))\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 = ERC721AStorage.layout()._currentIndex;\n        if (quantity == 0) _revert(MintZeroQuantity.selector);\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            // - `address` to the owner.\n            // - `startTimestamp` to the timestamp of minting.\n            // - `burned` to `false`.\n            // - `nextInitialized` to `quantity == 1`.\n            ERC721AStorage.layout()._packedOwnerships[startTokenId] = _packOwnershipData(\n                to,\n                _nextInitializedFlag(quantity) | _nextExtraData(address(0), to, 0)\n            );\n\n            // Updates:\n            // - `balance += quantity`.\n            // - `numberMinted += quantity`.\n            //\n            // We can directly add to the `balance` and `numberMinted`.\n            ERC721AStorage.layout()._packedAddressData[to] += quantity * ((1 << _BITPOS_NUMBER_MINTED) | 1);\n\n            // Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean.\n            uint256 toMasked = uint256(uint160(to)) & _BITMASK_ADDRESS;\n\n            if (toMasked == 0) _revert(MintToZeroAddress.selector);\n\n            uint256 end = startTokenId + quantity;\n            uint256 tokenId = startTokenId;\n\n            if (end - 1 > _sequentialUpTo()) _revert(SequentialMintExceedsLimit.selector);\n\n            do {\n                assembly {\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                        tokenId // `tokenId`.\n                    )\n                }\n                // The `!=` check ensures that large values of `quantity`\n                // that overflows uint256 will make the loop run out of gas.\n            } while (++tokenId != end);\n\n            ERC721AStorage.layout()._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 = ERC721AStorage.layout()._currentIndex;\n        if (to == address(0)) _revert(MintToZeroAddress.selector);\n        if (quantity == 0) _revert(MintZeroQuantity.selector);\n        if (quantity > _MAX_MINT_ERC2309_QUANTITY_LIMIT) _revert(MintERC2309QuantityExceedsLimit.selector);\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            ERC721AStorage.layout()._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            ERC721AStorage.layout()._packedOwnerships[startTokenId] = _packOwnershipData(\n                to,\n                _nextInitializedFlag(quantity) | _nextExtraData(address(0), to, 0)\n            );\n\n            if (startTokenId + quantity - 1 > _sequentialUpTo()) _revert(SequentialMintExceedsLimit.selector);\n\n            emit ConsecutiveTransfer(startTokenId, startTokenId + quantity - 1, address(0), to);\n\n            ERC721AStorage.layout()._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 = ERC721AStorage.layout()._currentIndex;\n                uint256 index = end - quantity;\n                do {\n                    if (!_checkContractOnERC721Received(address(0), to, index++, _data)) {\n                        _revert(TransferToNonERC721ReceiverImplementer.selector);\n                    }\n                } while (index < end);\n                // This prevents reentrancy to `_safeMint`.\n                // It does not prevent reentrancy to `_safeMintSpot`.\n                if (ERC721AStorage.layout()._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     * @dev Mints a single token at `tokenId`.\n     *\n     * Note: A spot-minted `tokenId` that has been burned can be re-minted again.\n     *\n     * Requirements:\n     *\n     * - `to` cannot be the zero address.\n     * - `tokenId` must be greater than `_sequentialUpTo()`.\n     * - `tokenId` must not exist.\n     *\n     * Emits a {Transfer} event for each mint.\n     */\n    function _mintSpot(address to, uint256 tokenId) internal virtual {\n        if (tokenId <= _sequentialUpTo()) _revert(SpotMintTokenIdTooSmall.selector);\n        uint256 prevOwnershipPacked = ERC721AStorage.layout()._packedOwnerships[tokenId];\n        if (_packedOwnershipExists(prevOwnershipPacked)) _revert(TokenAlreadyExists.selector);\n\n        _beforeTokenTransfers(address(0), to, tokenId, 1);\n\n        // Overflows are incredibly unrealistic.\n        // The `numberMinted` for `to` is incremented by 1, and has a max limit of 2**64 - 1.\n        // `_spotMinted` is incremented by 1, and has a max limit of 2**256 - 1.\n        unchecked {\n            // Updates:\n            // - `address` to the owner.\n            // - `startTimestamp` to the timestamp of minting.\n            // - `burned` to `false`.\n            // - `nextInitialized` to `true` (as `quantity == 1`).\n            ERC721AStorage.layout()._packedOwnerships[tokenId] = _packOwnershipData(\n                to,\n                _nextInitializedFlag(1) | _nextExtraData(address(0), to, prevOwnershipPacked)\n            );\n\n            // Updates:\n            // - `balance += 1`.\n            // - `numberMinted += 1`.\n            //\n            // We can directly add to the `balance` and `numberMinted`.\n            ERC721AStorage.layout()._packedAddressData[to] += (1 << _BITPOS_NUMBER_MINTED) | 1;\n\n            // Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean.\n            uint256 toMasked = uint256(uint160(to)) & _BITMASK_ADDRESS;\n\n            if (toMasked == 0) _revert(MintToZeroAddress.selector);\n\n            assembly {\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                    tokenId // `tokenId`.\n                )\n            }\n\n            ++ERC721AStorage.layout()._spotMinted;\n        }\n\n        _afterTokenTransfers(address(0), to, tokenId, 1);\n    }\n\n    /**\n     * @dev Safely mints a single token at `tokenId`.\n     *\n     * Note: A spot-minted `tokenId` that has been burned can be re-minted again.\n     *\n     * Requirements:\n     *\n     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}.\n     * - `tokenId` must be greater than `_sequentialUpTo()`.\n     * - `tokenId` must not exist.\n     *\n     * See {_mintSpot}.\n     *\n     * Emits a {Transfer} event.\n     */\n    function _safeMintSpot(\n        address to,\n        uint256 tokenId,\n        bytes memory _data\n    ) internal virtual {\n        _mintSpot(to, tokenId);\n\n        unchecked {\n            if (to.code.length != 0) {\n                uint256 currentSpotMinted = ERC721AStorage.layout()._spotMinted;\n                if (!_checkContractOnERC721Received(address(0), to, tokenId, _data)) {\n                    _revert(TransferToNonERC721ReceiverImplementer.selector);\n                }\n                // This prevents reentrancy to `_safeMintSpot`.\n                // It does not prevent reentrancy to `_safeMint`.\n                if (ERC721AStorage.layout()._spotMinted != currentSpotMinted) revert();\n            }\n        }\n    }\n\n    /**\n     * @dev Equivalent to `_safeMintSpot(to, tokenId, '')`.\n     */\n    function _safeMintSpot(address to, uint256 tokenId) internal virtual {\n        _safeMintSpot(to, tokenId, '');\n    }\n\n    // =============================================================\n    //                       APPROVAL OPERATIONS\n    // =============================================================\n\n    /**\n     * @dev Equivalent to `_approve(to, tokenId, false)`.\n     */\n    function _approve(address to, uint256 tokenId) internal virtual {\n        _approve(to, tokenId, false);\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     * - `tokenId` must exist.\n     *\n     * Emits an {Approval} event.\n     */\n    function _approve(\n        address to,\n        uint256 tokenId,\n        bool approvalCheck\n    ) internal virtual {\n        address owner = ownerOf(tokenId);\n\n        if (approvalCheck && _msgSenderERC721A() != owner)\n            if (!isApprovedForAll(owner, _msgSenderERC721A())) {\n                _revert(ApprovalCallerNotOwnerNorApproved.selector);\n            }\n\n        ERC721AStorage.layout()._tokenApprovals[tokenId].value = to;\n        emit Approval(owner, to, tokenId);\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.selector);\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            ERC721AStorage.layout()._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            ERC721AStorage.layout()._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 (ERC721AStorage.layout()._packedOwnerships[nextTokenId] == 0) {\n                    // If the next slot is within bounds.\n                    if (nextTokenId != ERC721AStorage.layout()._currentIndex) {\n                        // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`.\n                        ERC721AStorage.layout()._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 + _spotMinted` times.\n        unchecked {\n            ERC721AStorage.layout()._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 = ERC721AStorage.layout()._packedOwnerships[index];\n        if (packed == 0) _revert(OwnershipNotInitializedForExtraData.selector);\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        ERC721AStorage.layout()._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), but\n            // we allocate 0xa0 bytes to keep the free memory pointer 32-byte word aligned.\n            // We will need 1 word for the trailing zeros padding, 1 word for the length,\n            // and 3 words for a maximum of 78 digits. Total: 5 * 0x20 = 0xa0.\n            let m := add(mload(0x40), 0xa0)\n            // Update the free memory pointer to allocate.\n            mstore(0x40, m)\n            // Assign the `str` to the end.\n            str := sub(m, 0x20)\n            // Zeroize the slot after the string.\n            mstore(str, 0)\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    /**\n     * @dev For more efficient reverts.\n     */\n    function _revert(bytes4 errorSelector) internal pure {\n        assembly {\n            mstore(0x00, errorSelector)\n            revert(0x00, 0x04)\n        }\n    }\n}\n"
      },
      "erc721a-upgradeable/contracts/extensions/ERC721ABurnableUpgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// ERC721A Contracts v4.3.0\n// Creator: Chiru Labs\n\npragma solidity ^0.8.4;\n\nimport './IERC721ABurnableUpgradeable.sol';\nimport '../ERC721AUpgradeable.sol';\nimport '../ERC721A__Initializable.sol';\n\n/**\n * @title ERC721ABurnable.\n *\n * @dev ERC721A token that can be irreversibly burned (destroyed).\n */\nabstract contract ERC721ABurnableUpgradeable is\n    ERC721A__Initializable,\n    ERC721AUpgradeable,\n    IERC721ABurnableUpgradeable\n{\n    function __ERC721ABurnable_init() internal onlyInitializingERC721A {\n        __ERC721ABurnable_init_unchained();\n    }\n\n    function __ERC721ABurnable_init_unchained() internal onlyInitializingERC721A {}\n\n    /**\n     * @dev Burns `tokenId`. See {ERC721A-_burn}.\n     *\n     * Requirements:\n     *\n     * - The caller must own `tokenId` or be an approved operator.\n     */\n    function burn(uint256 tokenId) public virtual override {\n        _burn(tokenId, true);\n    }\n}\n"
      },
      "erc721a-upgradeable/contracts/extensions/ERC721AQueryableUpgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// ERC721A Contracts v4.3.0\n// Creator: Chiru Labs\n\npragma solidity ^0.8.4;\n\nimport './IERC721AQueryableUpgradeable.sol';\nimport '../ERC721AUpgradeable.sol';\nimport '../ERC721A__Initializable.sol';\n\n/**\n * @title ERC721AQueryable.\n *\n * @dev ERC721A subclass with convenience query functions.\n */\nabstract contract ERC721AQueryableUpgradeable is\n    ERC721A__Initializable,\n    ERC721AUpgradeable,\n    IERC721AQueryableUpgradeable\n{\n    function __ERC721AQueryable_init() internal onlyInitializingERC721A {\n        __ERC721AQueryable_init_unchained();\n    }\n\n    function __ERC721AQueryable_init_unchained() internal onlyInitializingERC721A {}\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)\n        public\n        view\n        virtual\n        override\n        returns (TokenOwnership memory ownership)\n    {\n        unchecked {\n            if (tokenId >= _startTokenId()) {\n                if (tokenId > _sequentialUpTo()) return _ownershipAt(tokenId);\n\n                if (tokenId < _nextTokenId()) {\n                    // If the `tokenId` is within bounds,\n                    // scan backwards for the initialized ownership slot.\n                    while (!_ownershipIsInitialized(tokenId)) --tokenId;\n                    return _ownershipAt(tokenId);\n                }\n            }\n        }\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        TokenOwnership[] memory ownerships;\n        uint256 i = tokenIds.length;\n        assembly {\n            // Grab the free memory pointer.\n            ownerships := mload(0x40)\n            // Store the length.\n            mstore(ownerships, i)\n            // Allocate one word for the length,\n            // `tokenIds.length` words for the pointers.\n            i := shl(5, i) // Multiply `i` by 32.\n            mstore(0x40, add(add(ownerships, 0x20), i))\n        }\n        while (i != 0) {\n            uint256 tokenId;\n            assembly {\n                i := sub(i, 0x20)\n                tokenId := calldataload(add(tokenIds.offset, i))\n            }\n            TokenOwnership memory ownership = explicitOwnershipOf(tokenId);\n            assembly {\n                // Store the pointer of `ownership` in the `ownerships` array.\n                mstore(add(add(ownerships, 0x20), i), ownership)\n            }\n        }\n        return ownerships;\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        return _tokensOfOwnerIn(owner, start, stop);\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        // If spot mints are enabled, full-range scan is disabled.\n        if (_sequentialUpTo() != type(uint256).max) _revert(NotCompatibleWithSpotMints.selector);\n        uint256 start = _startTokenId();\n        uint256 stop = _nextTokenId();\n        uint256[] memory tokenIds;\n        if (start != stop) tokenIds = _tokensOfOwnerIn(owner, start, stop);\n        return tokenIds;\n    }\n\n    /**\n     * @dev Helper function for returning an array of token IDs owned by `owner`.\n     *\n     * Note that this function is optimized for smaller bytecode size over runtime gas,\n     * since it is meant to be called off-chain.\n     */\n    function _tokensOfOwnerIn(\n        address owner,\n        uint256 start,\n        uint256 stop\n    ) private view returns (uint256[] memory tokenIds) {\n        unchecked {\n            if (start >= stop) _revert(InvalidQueryRange.selector);\n            // Set `start = max(start, _startTokenId())`.\n            if (start < _startTokenId()) start = _startTokenId();\n            uint256 nextTokenId = _nextTokenId();\n            // If spot mints are enabled, scan all the way until the specified `stop`.\n            uint256 stopLimit = _sequentialUpTo() != type(uint256).max ? stop : nextTokenId;\n            // Set `stop = min(stop, stopLimit)`.\n            if (stop >= stopLimit) stop = stopLimit;\n            // Number of tokens to scan.\n            uint256 tokenIdsMaxLength = balanceOf(owner);\n            // Set `tokenIdsMaxLength` to zero if the range contains no tokens.\n            if (start >= stop) tokenIdsMaxLength = 0;\n            // If there are one or more tokens to scan.\n            if (tokenIdsMaxLength != 0) {\n                // Set `tokenIdsMaxLength = min(balanceOf(owner), tokenIdsMaxLength)`.\n                if (stop - start <= tokenIdsMaxLength) tokenIdsMaxLength = stop - start;\n                uint256 m; // Start of available memory.\n                assembly {\n                    // Grab the free memory pointer.\n                    tokenIds := mload(0x40)\n                    // Allocate one word for the length, and `tokenIdsMaxLength` words\n                    // for the data. `shl(5, x)` is equivalent to `mul(32, x)`.\n                    m := add(tokenIds, shl(5, add(tokenIdsMaxLength, 1)))\n                    mstore(0x40, m)\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),\n                // initialize `currOwnershipAddr`.\n                // `ownership.address` will not be zero,\n                // as `start` is clamped to the valid token ID range.\n                if (!ownership.burned) currOwnershipAddr = ownership.addr;\n                uint256 tokenIdsIdx;\n                // Use a do-while, which is slightly more efficient for this case,\n                // as the array will at least contain one element.\n                do {\n                    if (_sequentialUpTo() != type(uint256).max) {\n                        // Skip the remaining unused sequential slots.\n                        if (start == nextTokenId) start = _sequentialUpTo() + 1;\n                        // Reset `currOwnershipAddr`, as each spot-minted token is a batch of one.\n                        if (start > _sequentialUpTo()) currOwnershipAddr = address(0);\n                    }\n                    ownership = _ownershipAt(start); // This implicitly allocates memory.\n                    assembly {\n                        switch mload(add(ownership, 0x40))\n                        // if `ownership.burned == false`.\n                        case 0 {\n                            // if `ownership.addr != address(0)`.\n                            // The `addr` already has it's upper 96 bits clearned,\n                            // since it is written to memory with regular Solidity.\n                            if mload(ownership) {\n                                currOwnershipAddr := mload(ownership)\n                            }\n                            // if `currOwnershipAddr == owner`.\n                            // The `shl(96, x)` is to make the comparison agnostic to any\n                            // dirty upper 96 bits in `owner`.\n                            if iszero(shl(96, xor(currOwnershipAddr, owner))) {\n                                tokenIdsIdx := add(tokenIdsIdx, 1)\n                                mstore(add(tokenIds, shl(5, tokenIdsIdx)), start)\n                            }\n                        }\n                        // Otherwise, reset `currOwnershipAddr`.\n                        // This handles the case of batch burned tokens\n                        // (burned bit of first slot set, remaining slots left uninitialized).\n                        default {\n                            currOwnershipAddr := 0\n                        }\n                        start := add(start, 1)\n                        // Free temporary memory implicitly allocated for ownership\n                        // to avoid quadratic memory expansion costs.\n                        mstore(0x40, m)\n                    }\n                } while (!(start == stop || tokenIdsIdx == tokenIdsMaxLength));\n                // Store the length of the array.\n                assembly {\n                    mstore(tokenIds, tokenIdsIdx)\n                }\n            }\n        }\n    }\n}\n"
      },
      "erc721a-upgradeable/contracts/extensions/IERC721ABurnableUpgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// ERC721A Contracts v4.3.0\n// Creator: Chiru Labs\n\npragma solidity ^0.8.4;\n\nimport '../IERC721AUpgradeable.sol';\n\n/**\n * @dev Interface of ERC721ABurnable.\n */\ninterface IERC721ABurnableUpgradeable is IERC721AUpgradeable {\n    /**\n     * @dev Burns `tokenId`. See {ERC721A-_burn}.\n     *\n     * Requirements:\n     *\n     * - The caller must own `tokenId` or be an approved operator.\n     */\n    function burn(uint256 tokenId) external;\n}\n"
      },
      "erc721a-upgradeable/contracts/extensions/IERC721AQueryableUpgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// ERC721A Contracts v4.3.0\n// Creator: Chiru Labs\n\npragma solidity ^0.8.4;\n\nimport '../IERC721AUpgradeable.sol';\n\n/**\n * @dev Interface of ERC721AQueryable.\n */\ninterface IERC721AQueryableUpgradeable is IERC721AUpgradeable {\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"
      },
      "erc721a-upgradeable/contracts/IERC721AUpgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// ERC721A Contracts v4.3.0\n// Creator: Chiru Labs\n\npragma solidity ^0.8.4;\n\n/**\n * @dev Interface of ERC721A.\n */\ninterface IERC721AUpgradeable {\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     * 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     * `_sequentialUpTo()` must be greater than `_startTokenId()`.\n     */\n    error SequentialUpToTooSmall();\n\n    /**\n     * The `tokenId` of a sequential mint exceeds `_sequentialUpTo()`.\n     */\n    error SequentialMintExceedsLimit();\n\n    /**\n     * Spot minting requires a `tokenId` greater than `_sequentialUpTo()`.\n     */\n    error SpotMintTokenIdTooSmall();\n\n    /**\n     * Cannot mint over a token that already exists.\n     */\n    error TokenAlreadyExists();\n\n    /**\n     * The feature is not compatible with spot mints.\n     */\n    error NotCompatibleWithSpotMints();\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 payable;\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 payable;\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 payable;\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 payable;\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"
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    "settings": {
      "optimizer": {
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        "runs": 500
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