ETH Price: $2,549.71 (+2.02%)

Transaction Decoder

Block:
18188037 at Sep-22-2023 01:11:11 AM +UTC
Transaction Fee:
0.006659087341804232 ETH $16.98
Gas Used:
775,724 Gas / 8.584351318 Gwei

Emitted Events:

338 TWCloneFactory.ProxyDeployed( implementation=DropERC721, proxy=DropERC721, deployer=[Sender] 0xe82a5b725eb5abe9f1f7a714c86002fdc6eaea1d )
339 OperatorFilterRegistry.RegistrationUpdated( registrant=DropERC721, registered=True )
340 OperatorFilterRegistry.SubscriptionUpdated( registrant=DropERC721, subscription=0x3cc6CddA...f810dCeB6, subscribed=True )
341 DropERC721.ContractURIUpdated( prevURI=, newURI=ipfs://QmbWRBnb9HocP3HyrdX9gT5fbadK2DE4ZTbqzNyBZuRhy1/0 )
342 DropERC721.OwnerUpdated( prevOwner=0x00000000...000000000, newOwner=[Sender] 0xe82a5b725eb5abe9f1f7a714c86002fdc6eaea1d )
343 DropERC721.OperatorRestriction( restriction=True )
344 DropERC721.RoleGranted( role=0000000000000000000000000000000000000000000000000000000000000000, account=[Sender] 0xe82a5b725eb5abe9f1f7a714c86002fdc6eaea1d, sender=[Receiver] TWCloneFactory )
345 DropERC721.RoleGranted( role=9F2DF0FED2C77648DE5860A4CC508CD0818C85B8B8A1AB4CEEEF8D981C8956A6, account=[Sender] 0xe82a5b725eb5abe9f1f7a714c86002fdc6eaea1d, sender=[Receiver] TWCloneFactory )
346 DropERC721.RoleGranted( role=8502233096D909BEFBDA0999BB8EA2F3A6BE3C138B9FBF003752A4C8BCE86F6C, account=[Sender] 0xe82a5b725eb5abe9f1f7a714c86002fdc6eaea1d, sender=[Receiver] TWCloneFactory )
347 DropERC721.RoleGranted( role=8502233096D909BEFBDA0999BB8EA2F3A6BE3C138B9FBF003752A4C8BCE86F6C, account=0x00000000...000000000, sender=[Receiver] TWCloneFactory )
348 DropERC721.PlatformFeeInfoUpdated( platformFeeRecipient=[Sender] 0xe82a5b725eb5abe9f1f7a714c86002fdc6eaea1d, platformFeeBps=0 )
349 DropERC721.DefaultRoyalty( newRoyaltyRecipient=[Sender] 0xe82a5b725eb5abe9f1f7a714c86002fdc6eaea1d, newRoyaltyBps=0 )
350 DropERC721.PrimarySaleRecipientUpdated( recipient=[Sender] 0xe82a5b725eb5abe9f1f7a714c86002fdc6eaea1d )
351 DropERC721.Initialized( version=1 )

Account State Difference:

  Address   Before After State Difference Code
0x00000000...67333cd4E
3.086985466223009417 Eth3.087063038623009417 Eth0.0000775724
0x76F948E5...Bf524805E
0xbe2F5524...3965C410f
0 Eth
Nonce: 0
0 Eth
Nonce: 1
From: 0 To: 497590261154554171967157653816137108568656721258390092380121701605281146431749018211105130272024471409613811
0xE82A5b72...DC6eaeA1d
0.06230819 Eth
Nonce: 0
0.055649102658195768 Eth
Nonce: 1
0.006659087341804232

Execution Trace

TWCloneFactory.deployProxyByImplementation( _implementation=0xcf8f7085A67646A6f8084c841c3b4d4919b67DD8, _data=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salt=3138313838303335000000000000000000000000000000000000000000000000 ) => ( deployedProxy=0xbe2F5524e71c79b830eA5b9622732633965C410f )
  • DropERC721.3d602d80( )
  • DropERC721.initialize( _defaultAdmin=0xE82A5b725EB5ABE9f1f7a714c86002fDC6eaeA1d, _name=Tiny Pepes, _symbol=TNPP, _contractURI=ipfs://QmbWRBnb9HocP3HyrdX9gT5fbadK2DE4ZTbqzNyBZuRhy1/0, _trustedForwarders=[0xc82BbE41f2cF04e3a8efA18F7032BDD7f6d98a81, 0x84a0856b038eaAd1cC7E297cF34A7e72685A8693], _saleRecipient=0xE82A5b725EB5ABE9f1f7a714c86002fDC6eaeA1d, _royaltyRecipient=0xE82A5b725EB5ABE9f1f7a714c86002fDC6eaeA1d, _royaltyBps=0, _platformFeeBps=0, _platformFeeRecipient=0xE82A5b725EB5ABE9f1f7a714c86002fDC6eaeA1d )
    • DropERC721.initialize( _defaultAdmin=0xE82A5b725EB5ABE9f1f7a714c86002fDC6eaeA1d, _name=Tiny Pepes, _symbol=TNPP, _contractURI=ipfs://QmbWRBnb9HocP3HyrdX9gT5fbadK2DE4ZTbqzNyBZuRhy1/0, _trustedForwarders=[0xc82BbE41f2cF04e3a8efA18F7032BDD7f6d98a81, 0x84a0856b038eaAd1cC7E297cF34A7e72685A8693], _saleRecipient=0xE82A5b725EB5ABE9f1f7a714c86002fDC6eaeA1d, _royaltyRecipient=0xE82A5b725EB5ABE9f1f7a714c86002fDC6eaeA1d, _royaltyBps=0, _platformFeeBps=0, _platformFeeRecipient=0xE82A5b725EB5ABE9f1f7a714c86002fDC6eaeA1d )
      • OperatorFilterRegistry.registerAndSubscribe( registrant=0xbe2F5524e71c79b830eA5b9622732633965C410f, subscription=0x3cc6CddA760b79bAfa08dF41ECFA224f810dCeB6 )
        File 1 of 4: TWCloneFactory
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.11;
        /// @author thirdweb
        //   $$\\     $$\\       $$\\                 $$\\                         $$\\
        //   $$ |    $$ |      \\__|                $$ |                        $$ |
        // $$$$$$\\   $$$$$$$\\  $$\\  $$$$$$\\   $$$$$$$ |$$\\  $$\\  $$\\  $$$$$$\\  $$$$$$$\\
        // \\_$$  _|  $$  __$$\\ $$ |$$  __$$\\ $$  __$$ |$$ | $$ | $$ |$$  __$$\\ $$  __$$\\
        //   $$ |    $$ |  $$ |$$ |$$ |  \\__|$$ /  $$ |$$ | $$ | $$ |$$$$$$$$ |$$ |  $$ |
        //   $$ |$$\\ $$ |  $$ |$$ |$$ |      $$ |  $$ |$$ | $$ | $$ |$$   ____|$$ |  $$ |
        //   \\$$$$  |$$ |  $$ |$$ |$$ |      \\$$$$$$$ |\\$$$$$\\$$$$  |\\$$$$$$$\\ $$$$$$$  |
        //    \\____/ \\__|  \\__|\\__|\\__|       \\_______| \\_____\\____/  \\_______|\\_______/
        import "./extension/interface/IContractFactory.sol";
        import "@openzeppelin/contracts/metatx/ERC2771Context.sol";
        import "@openzeppelin/contracts/utils/Multicall.sol";
        import "@openzeppelin/contracts/proxy/Clones.sol";
        contract TWCloneFactory is Multicall, ERC2771Context, IContractFactory {
            /// @dev Emitted when a proxy is deployed.
            event ProxyDeployed(address indexed implementation, address proxy, address indexed deployer);
            constructor(address _trustedForwarder) ERC2771Context(_trustedForwarder) {}
            /// @dev Deploys a proxy that points to the given implementation.
            function deployProxyByImplementation(
                address _implementation,
                bytes memory _data,
                bytes32 _salt
            ) public override returns (address deployedProxy) {
                bytes32 salthash = keccak256(abi.encodePacked(_msgSender(), _salt));
                deployedProxy = Clones.cloneDeterministic(_implementation, salthash);
                emit ProxyDeployed(_implementation, deployedProxy, _msgSender());
                if (_data.length > 0) {
                    // slither-disable-next-line unused-return
                    Address.functionCall(deployedProxy, _data);
                }
            }
            function _msgSender() internal view virtual override returns (address sender) {
                return ERC2771Context._msgSender();
            }
            function _msgData() internal view virtual override returns (bytes calldata) {
                return ERC2771Context._msgData();
            }
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        interface IContractFactory {
            /**
             *  @notice Deploys a proxy that points to that points to the given implementation.
             *
             *  @param implementation           Address of the implementation to point to.
             *
             *  @param data                     Additional data to pass to the proxy constructor or any other data useful during deployement.
             *  @param salt                     Salt to use for the deterministic address generation.
             */
            function deployProxyByImplementation(
                address implementation,
                bytes memory data,
                bytes32 salt
            ) external returns (address);
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.7.0) (metatx/ERC2771Context.sol)
        pragma solidity ^0.8.9;
        import "../utils/Context.sol";
        /**
         * @dev Context variant with ERC2771 support.
         */
        abstract contract ERC2771Context is Context {
            /// @custom:oz-upgrades-unsafe-allow state-variable-immutable
            address private immutable _trustedForwarder;
            /// @custom:oz-upgrades-unsafe-allow constructor
            constructor(address trustedForwarder) {
                _trustedForwarder = trustedForwarder;
            }
            function isTrustedForwarder(address forwarder) public view virtual returns (bool) {
                return forwarder == _trustedForwarder;
            }
            function _msgSender() internal view virtual override returns (address sender) {
                if (isTrustedForwarder(msg.sender)) {
                    // The assembly code is more direct than the Solidity version using `abi.decode`.
                    /// @solidity memory-safe-assembly
                    assembly {
                        sender := shr(96, calldataload(sub(calldatasize(), 20)))
                    }
                } else {
                    return super._msgSender();
                }
            }
            function _msgData() internal view virtual override returns (bytes calldata) {
                if (isTrustedForwarder(msg.sender)) {
                    return msg.data[:msg.data.length - 20];
                } else {
                    return super._msgData();
                }
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.7.0) (proxy/Clones.sol)
        pragma solidity ^0.8.0;
        /**
         * @dev https://eips.ethereum.org/EIPS/eip-1167[EIP 1167] is a standard for
         * deploying minimal proxy contracts, also known as "clones".
         *
         * > To simply and cheaply clone contract functionality in an immutable way, this standard specifies
         * > a minimal bytecode implementation that delegates all calls to a known, fixed address.
         *
         * The library includes functions to deploy a proxy using either `create` (traditional deployment) or `create2`
         * (salted deterministic deployment). It also includes functions to predict the addresses of clones deployed using the
         * deterministic method.
         *
         * _Available since v3.4._
         */
        library Clones {
            /**
             * @dev Deploys and returns the address of a clone that mimics the behaviour of `implementation`.
             *
             * This function uses the create opcode, which should never revert.
             */
            function clone(address implementation) internal returns (address instance) {
                /// @solidity memory-safe-assembly
                assembly {
                    let ptr := mload(0x40)
                    mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000)
                    mstore(add(ptr, 0x14), shl(0x60, implementation))
                    mstore(add(ptr, 0x28), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000)
                    instance := create(0, ptr, 0x37)
                }
                require(instance != address(0), "ERC1167: create failed");
            }
            /**
             * @dev Deploys and returns the address of a clone that mimics the behaviour of `implementation`.
             *
             * This function uses the create2 opcode and a `salt` to deterministically deploy
             * the clone. Using the same `implementation` and `salt` multiple time will revert, since
             * the clones cannot be deployed twice at the same address.
             */
            function cloneDeterministic(address implementation, bytes32 salt) internal returns (address instance) {
                /// @solidity memory-safe-assembly
                assembly {
                    let ptr := mload(0x40)
                    mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000)
                    mstore(add(ptr, 0x14), shl(0x60, implementation))
                    mstore(add(ptr, 0x28), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000)
                    instance := create2(0, ptr, 0x37, salt)
                }
                require(instance != address(0), "ERC1167: create2 failed");
            }
            /**
             * @dev Computes the address of a clone deployed using {Clones-cloneDeterministic}.
             */
            function predictDeterministicAddress(
                address implementation,
                bytes32 salt,
                address deployer
            ) internal pure returns (address predicted) {
                /// @solidity memory-safe-assembly
                assembly {
                    let ptr := mload(0x40)
                    mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000)
                    mstore(add(ptr, 0x14), shl(0x60, implementation))
                    mstore(add(ptr, 0x28), 0x5af43d82803e903d91602b57fd5bf3ff00000000000000000000000000000000)
                    mstore(add(ptr, 0x38), shl(0x60, deployer))
                    mstore(add(ptr, 0x4c), salt)
                    mstore(add(ptr, 0x6c), keccak256(ptr, 0x37))
                    predicted := keccak256(add(ptr, 0x37), 0x55)
                }
            }
            /**
             * @dev Computes the address of a clone deployed using {Clones-cloneDeterministic}.
             */
            function predictDeterministicAddress(address implementation, bytes32 salt)
                internal
                view
                returns (address predicted)
            {
                return predictDeterministicAddress(implementation, salt, address(this));
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)
        pragma solidity ^0.8.1;
        /**
         * @dev Collection of functions related to the address type
         */
        library Address {
            /**
             * @dev Returns true if `account` is a contract.
             *
             * [IMPORTANT]
             * ====
             * It is unsafe to assume that an address for which this function returns
             * false is an externally-owned account (EOA) and not a contract.
             *
             * Among others, `isContract` will return false for the following
             * types of addresses:
             *
             *  - an externally-owned account
             *  - a contract in construction
             *  - an address where a contract will be created
             *  - an address where a contract lived, but was destroyed
             * ====
             *
             * [IMPORTANT]
             * ====
             * You shouldn't rely on `isContract` to protect against flash loan attacks!
             *
             * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
             * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
             * constructor.
             * ====
             */
            function isContract(address account) internal view returns (bool) {
                // This method relies on extcodesize/address.code.length, which returns 0
                // for contracts in construction, since the code is only stored at the end
                // of the constructor execution.
                return account.code.length > 0;
            }
            /**
             * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
             * `recipient`, forwarding all available gas and reverting on errors.
             *
             * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
             * of certain opcodes, possibly making contracts go over the 2300 gas limit
             * imposed by `transfer`, making them unable to receive funds via
             * `transfer`. {sendValue} removes this limitation.
             *
             * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
             *
             * IMPORTANT: because control is transferred to `recipient`, care must be
             * taken to not create reentrancy vulnerabilities. Consider using
             * {ReentrancyGuard} or the
             * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
             */
            function sendValue(address payable recipient, uint256 amount) internal {
                require(address(this).balance >= amount, "Address: insufficient balance");
                (bool success, ) = recipient.call{value: amount}("");
                require(success, "Address: unable to send value, recipient may have reverted");
            }
            /**
             * @dev Performs a Solidity function call using a low level `call`. A
             * plain `call` is an unsafe replacement for a function call: use this
             * function instead.
             *
             * If `target` reverts with a revert reason, it is bubbled up by this
             * function (like regular Solidity function calls).
             *
             * Returns the raw returned data. To convert to the expected return value,
             * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
             *
             * Requirements:
             *
             * - `target` must be a contract.
             * - calling `target` with `data` must not revert.
             *
             * _Available since v3.1._
             */
            function functionCall(address target, bytes memory data) internal returns (bytes memory) {
                return functionCall(target, data, "Address: low-level call failed");
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
             * `errorMessage` as a fallback revert reason when `target` reverts.
             *
             * _Available since v3.1._
             */
            function functionCall(
                address target,
                bytes memory data,
                string memory errorMessage
            ) internal returns (bytes memory) {
                return functionCallWithValue(target, data, 0, errorMessage);
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
             * but also transferring `value` wei to `target`.
             *
             * Requirements:
             *
             * - the calling contract must have an ETH balance of at least `value`.
             * - the called Solidity function must be `payable`.
             *
             * _Available since v3.1._
             */
            function functionCallWithValue(
                address target,
                bytes memory data,
                uint256 value
            ) internal returns (bytes memory) {
                return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
            }
            /**
             * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
             * with `errorMessage` as a fallback revert reason when `target` reverts.
             *
             * _Available since v3.1._
             */
            function functionCallWithValue(
                address target,
                bytes memory data,
                uint256 value,
                string memory errorMessage
            ) internal returns (bytes memory) {
                require(address(this).balance >= value, "Address: insufficient balance for call");
                require(isContract(target), "Address: call to non-contract");
                (bool success, bytes memory returndata) = target.call{value: value}(data);
                return verifyCallResult(success, returndata, errorMessage);
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
             * but performing a static call.
             *
             * _Available since v3.3._
             */
            function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
                return functionStaticCall(target, data, "Address: low-level static call failed");
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
             * but performing a static call.
             *
             * _Available since v3.3._
             */
            function functionStaticCall(
                address target,
                bytes memory data,
                string memory errorMessage
            ) internal view returns (bytes memory) {
                require(isContract(target), "Address: static call to non-contract");
                (bool success, bytes memory returndata) = target.staticcall(data);
                return verifyCallResult(success, returndata, errorMessage);
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
             * but performing a delegate call.
             *
             * _Available since v3.4._
             */
            function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
                return functionDelegateCall(target, data, "Address: low-level delegate call failed");
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
             * but performing a delegate call.
             *
             * _Available since v3.4._
             */
            function functionDelegateCall(
                address target,
                bytes memory data,
                string memory errorMessage
            ) internal returns (bytes memory) {
                require(isContract(target), "Address: delegate call to non-contract");
                (bool success, bytes memory returndata) = target.delegatecall(data);
                return verifyCallResult(success, returndata, errorMessage);
            }
            /**
             * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
             * revert reason using the provided one.
             *
             * _Available since v4.3._
             */
            function verifyCallResult(
                bool success,
                bytes memory returndata,
                string memory errorMessage
            ) internal pure returns (bytes memory) {
                if (success) {
                    return returndata;
                } else {
                    // Look for revert reason and bubble it up if present
                    if (returndata.length > 0) {
                        // The easiest way to bubble the revert reason is using memory via assembly
                        /// @solidity memory-safe-assembly
                        assembly {
                            let returndata_size := mload(returndata)
                            revert(add(32, returndata), returndata_size)
                        }
                    } else {
                        revert(errorMessage);
                    }
                }
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
        pragma solidity ^0.8.0;
        /**
         * @dev Provides information about the current execution context, including the
         * sender of the transaction and its data. While these are generally available
         * via msg.sender and msg.data, they should not be accessed in such a direct
         * manner, since when dealing with meta-transactions the account sending and
         * paying for execution may not be the actual sender (as far as an application
         * is concerned).
         *
         * This contract is only required for intermediate, library-like contracts.
         */
        abstract contract Context {
            function _msgSender() internal view virtual returns (address) {
                return msg.sender;
            }
            function _msgData() internal view virtual returns (bytes calldata) {
                return msg.data;
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.5.0) (utils/Multicall.sol)
        pragma solidity ^0.8.0;
        import "./Address.sol";
        /**
         * @dev Provides a function to batch together multiple calls in a single external call.
         *
         * _Available since v4.1._
         */
        abstract contract Multicall {
            /**
             * @dev Receives and executes a batch of function calls on this contract.
             */
            function multicall(bytes[] calldata data) external virtual returns (bytes[] memory results) {
                results = new bytes[](data.length);
                for (uint256 i = 0; i < data.length; i++) {
                    results[i] = Address.functionDelegateCall(address(this), data[i]);
                }
                return results;
            }
        }
        

        File 2 of 4: OperatorFilterRegistry
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)
        pragma solidity ^0.8.0;
        import "../utils/Context.sol";
        /**
         * @dev Contract module which provides a basic access control mechanism, where
         * there is an account (an owner) that can be granted exclusive access to
         * specific functions.
         *
         * By default, the owner account will be the one that deploys the contract. This
         * can later be changed with {transferOwnership}.
         *
         * This module is used through inheritance. It will make available the modifier
         * `onlyOwner`, which can be applied to your functions to restrict their use to
         * the owner.
         */
        abstract contract Ownable is Context {
            address private _owner;
            event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
            /**
             * @dev Initializes the contract setting the deployer as the initial owner.
             */
            constructor() {
                _transferOwnership(_msgSender());
            }
            /**
             * @dev Throws if called by any account other than the owner.
             */
            modifier onlyOwner() {
                _checkOwner();
                _;
            }
            /**
             * @dev Returns the address of the current owner.
             */
            function owner() public view virtual returns (address) {
                return _owner;
            }
            /**
             * @dev Throws if the sender is not the owner.
             */
            function _checkOwner() internal view virtual {
                require(owner() == _msgSender(), "Ownable: caller is not the owner");
            }
            /**
             * @dev Leaves the contract without owner. It will not be possible to call
             * `onlyOwner` functions anymore. Can only be called by the current owner.
             *
             * NOTE: Renouncing ownership will leave the contract without an owner,
             * thereby removing any functionality that is only available to the owner.
             */
            function renounceOwnership() public virtual onlyOwner {
                _transferOwnership(address(0));
            }
            /**
             * @dev Transfers ownership of the contract to a new account (`newOwner`).
             * Can only be called by the current owner.
             */
            function transferOwnership(address newOwner) public virtual onlyOwner {
                require(newOwner != address(0), "Ownable: new owner is the zero address");
                _transferOwnership(newOwner);
            }
            /**
             * @dev Transfers ownership of the contract to a new account (`newOwner`).
             * Internal function without access restriction.
             */
            function _transferOwnership(address newOwner) internal virtual {
                address oldOwner = _owner;
                _owner = newOwner;
                emit OwnershipTransferred(oldOwner, newOwner);
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
        pragma solidity ^0.8.0;
        /**
         * @dev Provides information about the current execution context, including the
         * sender of the transaction and its data. While these are generally available
         * via msg.sender and msg.data, they should not be accessed in such a direct
         * manner, since when dealing with meta-transactions the account sending and
         * paying for execution may not be the actual sender (as far as an application
         * is concerned).
         *
         * This contract is only required for intermediate, library-like contracts.
         */
        abstract contract Context {
            function _msgSender() internal view virtual returns (address) {
                return msg.sender;
            }
            function _msgData() internal view virtual returns (bytes calldata) {
                return msg.data;
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.7.0) (utils/structs/EnumerableSet.sol)
        // This file was procedurally generated from scripts/generate/templates/EnumerableSet.js.
        pragma solidity ^0.8.0;
        /**
         * @dev Library for managing
         * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
         * types.
         *
         * Sets have the following properties:
         *
         * - Elements are added, removed, and checked for existence in constant time
         * (O(1)).
         * - Elements are enumerated in O(n). No guarantees are made on the ordering.
         *
         * ```
         * contract Example {
         *     // Add the library methods
         *     using EnumerableSet for EnumerableSet.AddressSet;
         *
         *     // Declare a set state variable
         *     EnumerableSet.AddressSet private mySet;
         * }
         * ```
         *
         * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)
         * and `uint256` (`UintSet`) are supported.
         *
         * [WARNING]
         * ====
         * Trying to delete such a structure from storage will likely result in data corruption, rendering the structure
         * unusable.
         * See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info.
         *
         * In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an
         * array of EnumerableSet.
         * ====
         */
        library EnumerableSet {
            // To implement this library for multiple types with as little code
            // repetition as possible, we write it in terms of a generic Set type with
            // bytes32 values.
            // The Set implementation uses private functions, and user-facing
            // implementations (such as AddressSet) are just wrappers around the
            // underlying Set.
            // This means that we can only create new EnumerableSets for types that fit
            // in bytes32.
            struct Set {
                // Storage of set values
                bytes32[] _values;
                // Position of the value in the `values` array, plus 1 because index 0
                // means a value is not in the set.
                mapping(bytes32 => uint256) _indexes;
            }
            /**
             * @dev Add a value to a set. O(1).
             *
             * Returns true if the value was added to the set, that is if it was not
             * already present.
             */
            function _add(Set storage set, bytes32 value) private returns (bool) {
                if (!_contains(set, value)) {
                    set._values.push(value);
                    // The value is stored at length-1, but we add 1 to all indexes
                    // and use 0 as a sentinel value
                    set._indexes[value] = set._values.length;
                    return true;
                } else {
                    return false;
                }
            }
            /**
             * @dev Removes a value from a set. O(1).
             *
             * Returns true if the value was removed from the set, that is if it was
             * present.
             */
            function _remove(Set storage set, bytes32 value) private returns (bool) {
                // We read and store the value's index to prevent multiple reads from the same storage slot
                uint256 valueIndex = set._indexes[value];
                if (valueIndex != 0) {
                    // Equivalent to contains(set, value)
                    // To delete an element from the _values array in O(1), we swap the element to delete with the last one in
                    // the array, and then remove the last element (sometimes called as 'swap and pop').
                    // This modifies the order of the array, as noted in {at}.
                    uint256 toDeleteIndex = valueIndex - 1;
                    uint256 lastIndex = set._values.length - 1;
                    if (lastIndex != toDeleteIndex) {
                        bytes32 lastValue = set._values[lastIndex];
                        // Move the last value to the index where the value to delete is
                        set._values[toDeleteIndex] = lastValue;
                        // Update the index for the moved value
                        set._indexes[lastValue] = valueIndex; // Replace lastValue's index to valueIndex
                    }
                    // Delete the slot where the moved value was stored
                    set._values.pop();
                    // Delete the index for the deleted slot
                    delete set._indexes[value];
                    return true;
                } else {
                    return false;
                }
            }
            /**
             * @dev Returns true if the value is in the set. O(1).
             */
            function _contains(Set storage set, bytes32 value) private view returns (bool) {
                return set._indexes[value] != 0;
            }
            /**
             * @dev Returns the number of values on the set. O(1).
             */
            function _length(Set storage set) private view returns (uint256) {
                return set._values.length;
            }
            /**
             * @dev Returns the value stored at position `index` in the set. O(1).
             *
             * Note that there are no guarantees on the ordering of values inside the
             * array, and it may change when more values are added or removed.
             *
             * Requirements:
             *
             * - `index` must be strictly less than {length}.
             */
            function _at(Set storage set, uint256 index) private view returns (bytes32) {
                return set._values[index];
            }
            /**
             * @dev Return the entire set in an array
             *
             * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
             * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
             * this function has an unbounded cost, and using it as part of a state-changing function may render the function
             * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
             */
            function _values(Set storage set) private view returns (bytes32[] memory) {
                return set._values;
            }
            // Bytes32Set
            struct Bytes32Set {
                Set _inner;
            }
            /**
             * @dev Add a value to a set. O(1).
             *
             * Returns true if the value was added to the set, that is if it was not
             * already present.
             */
            function add(Bytes32Set storage set, bytes32 value) internal returns (bool) {
                return _add(set._inner, value);
            }
            /**
             * @dev Removes a value from a set. O(1).
             *
             * Returns true if the value was removed from the set, that is if it was
             * present.
             */
            function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) {
                return _remove(set._inner, value);
            }
            /**
             * @dev Returns true if the value is in the set. O(1).
             */
            function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {
                return _contains(set._inner, value);
            }
            /**
             * @dev Returns the number of values in the set. O(1).
             */
            function length(Bytes32Set storage set) internal view returns (uint256) {
                return _length(set._inner);
            }
            /**
             * @dev Returns the value stored at position `index` in the set. O(1).
             *
             * Note that there are no guarantees on the ordering of values inside the
             * array, and it may change when more values are added or removed.
             *
             * Requirements:
             *
             * - `index` must be strictly less than {length}.
             */
            function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {
                return _at(set._inner, index);
            }
            /**
             * @dev Return the entire set in an array
             *
             * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
             * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
             * this function has an unbounded cost, and using it as part of a state-changing function may render the function
             * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
             */
            function values(Bytes32Set storage set) internal view returns (bytes32[] memory) {
                bytes32[] memory store = _values(set._inner);
                bytes32[] memory result;
                /// @solidity memory-safe-assembly
                assembly {
                    result := store
                }
                return result;
            }
            // AddressSet
            struct AddressSet {
                Set _inner;
            }
            /**
             * @dev Add a value to a set. O(1).
             *
             * Returns true if the value was added to the set, that is if it was not
             * already present.
             */
            function add(AddressSet storage set, address value) internal returns (bool) {
                return _add(set._inner, bytes32(uint256(uint160(value))));
            }
            /**
             * @dev Removes a value from a set. O(1).
             *
             * Returns true if the value was removed from the set, that is if it was
             * present.
             */
            function remove(AddressSet storage set, address value) internal returns (bool) {
                return _remove(set._inner, bytes32(uint256(uint160(value))));
            }
            /**
             * @dev Returns true if the value is in the set. O(1).
             */
            function contains(AddressSet storage set, address value) internal view returns (bool) {
                return _contains(set._inner, bytes32(uint256(uint160(value))));
            }
            /**
             * @dev Returns the number of values in the set. O(1).
             */
            function length(AddressSet storage set) internal view returns (uint256) {
                return _length(set._inner);
            }
            /**
             * @dev Returns the value stored at position `index` in the set. O(1).
             *
             * Note that there are no guarantees on the ordering of values inside the
             * array, and it may change when more values are added or removed.
             *
             * Requirements:
             *
             * - `index` must be strictly less than {length}.
             */
            function at(AddressSet storage set, uint256 index) internal view returns (address) {
                return address(uint160(uint256(_at(set._inner, index))));
            }
            /**
             * @dev Return the entire set in an array
             *
             * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
             * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
             * this function has an unbounded cost, and using it as part of a state-changing function may render the function
             * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
             */
            function values(AddressSet storage set) internal view returns (address[] memory) {
                bytes32[] memory store = _values(set._inner);
                address[] memory result;
                /// @solidity memory-safe-assembly
                assembly {
                    result := store
                }
                return result;
            }
            // UintSet
            struct UintSet {
                Set _inner;
            }
            /**
             * @dev Add a value to a set. O(1).
             *
             * Returns true if the value was added to the set, that is if it was not
             * already present.
             */
            function add(UintSet storage set, uint256 value) internal returns (bool) {
                return _add(set._inner, bytes32(value));
            }
            /**
             * @dev Removes a value from a set. O(1).
             *
             * Returns true if the value was removed from the set, that is if it was
             * present.
             */
            function remove(UintSet storage set, uint256 value) internal returns (bool) {
                return _remove(set._inner, bytes32(value));
            }
            /**
             * @dev Returns true if the value is in the set. O(1).
             */
            function contains(UintSet storage set, uint256 value) internal view returns (bool) {
                return _contains(set._inner, bytes32(value));
            }
            /**
             * @dev Returns the number of values in the set. O(1).
             */
            function length(UintSet storage set) internal view returns (uint256) {
                return _length(set._inner);
            }
            /**
             * @dev Returns the value stored at position `index` in the set. O(1).
             *
             * Note that there are no guarantees on the ordering of values inside the
             * array, and it may change when more values are added or removed.
             *
             * Requirements:
             *
             * - `index` must be strictly less than {length}.
             */
            function at(UintSet storage set, uint256 index) internal view returns (uint256) {
                return uint256(_at(set._inner, index));
            }
            /**
             * @dev Return the entire set in an array
             *
             * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
             * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
             * this function has an unbounded cost, and using it as part of a state-changing function may render the function
             * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
             */
            function values(UintSet storage set) internal view returns (uint256[] memory) {
                bytes32[] memory store = _values(set._inner);
                uint256[] memory result;
                /// @solidity memory-safe-assembly
                assembly {
                    result := store
                }
                return result;
            }
        }
        // SPDX-License-Identifier: MIT
        pragma solidity ^0.8.13;
        import {EnumerableSet} from "openzeppelin-contracts/utils/structs/EnumerableSet.sol";
        interface IOperatorFilterRegistry {
            function isOperatorAllowed(address registrant, address operator) external returns (bool);
            function register(address registrant) external;
            function registerAndSubscribe(address registrant, address subscription) external;
            function registerAndCopyEntries(address registrant, address registrantToCopy) external;
            function updateOperator(address registrant, address operator, bool filtered) external;
            function updateOperators(address registrant, address[] calldata operators, bool filtered) external;
            function updateCodeHash(address registrant, bytes32 codehash, bool filtered) external;
            function updateCodeHashes(address registrant, bytes32[] calldata codeHashes, bool filtered) external;
            function subscribe(address registrant, address registrantToSubscribe) external;
            function unsubscribe(address registrant, bool copyExistingEntries) external;
            function subscriptionOf(address addr) external returns (address registrant);
            function subscribers(address registrant) external returns (address[] memory);
            function subscriberAt(address registrant, uint256 index) external returns (address);
            function copyEntriesOf(address registrant, address registrantToCopy) external;
            function isOperatorFiltered(address registrant, address operator) external returns (bool);
            function isCodeHashOfFiltered(address registrant, address operatorWithCode) external returns (bool);
            function isCodeHashFiltered(address registrant, bytes32 codeHash) external returns (bool);
            function filteredOperators(address addr) external returns (address[] memory);
            function filteredCodeHashes(address addr) external returns (bytes32[] memory);
            function filteredOperatorAt(address registrant, uint256 index) external returns (address);
            function filteredCodeHashAt(address registrant, uint256 index) external returns (bytes32);
            function isRegistered(address addr) external returns (bool);
            function codeHashOf(address addr) external returns (bytes32);
        }
        // SPDX-License-Identifier: MIT
        pragma solidity ^0.8.13;
        import {IOperatorFilterRegistry} from "./IOperatorFilterRegistry.sol";
        import {Ownable} from "openzeppelin-contracts/access/Ownable.sol";
        import {EnumerableSet} from "openzeppelin-contracts/utils/structs/EnumerableSet.sol";
        import {OperatorFilterRegistryErrorsAndEvents} from "./OperatorFilterRegistryErrorsAndEvents.sol";
        /**
         * @title  OperatorFilterRegistry
         * @notice Borrows heavily from the QQL BlacklistOperatorFilter contract:
         *         https://github.com/qql-art/contracts/blob/main/contracts/BlacklistOperatorFilter.sol
         * @notice This contracts allows tokens or token owners to register specific addresses or codeHashes that may be
         * *       restricted according to the isOperatorAllowed function.
         */
        contract OperatorFilterRegistry is IOperatorFilterRegistry, OperatorFilterRegistryErrorsAndEvents {
            using EnumerableSet for EnumerableSet.AddressSet;
            using EnumerableSet for EnumerableSet.Bytes32Set;
            /// @dev initialized accounts have a nonzero codehash (see https://eips.ethereum.org/EIPS/eip-1052)
            /// Note that this will also be a smart contract's codehash when making calls from its constructor.
            bytes32 constant EOA_CODEHASH = keccak256("");
            mapping(address => EnumerableSet.AddressSet) private _filteredOperators;
            mapping(address => EnumerableSet.Bytes32Set) private _filteredCodeHashes;
            mapping(address => address) private _registrations;
            mapping(address => EnumerableSet.AddressSet) private _subscribers;
            /**
             * @notice restricts method caller to the address or EIP-173 "owner()"
             */
            modifier onlyAddressOrOwner(address addr) {
                if (msg.sender != addr) {
                    try Ownable(addr).owner() returns (address owner) {
                        if (msg.sender != owner) {
                            revert OnlyAddressOrOwner();
                        }
                    } catch (bytes memory reason) {
                        if (reason.length == 0) {
                            revert NotOwnable();
                        } else {
                            /// @solidity memory-safe-assembly
                            assembly {
                                revert(add(32, reason), mload(reason))
                            }
                        }
                    }
                }
                _;
            }
            /**
             * @notice Returns true if operator is not filtered for a given token, either by address or codeHash. Also returns
             *         true if supplied registrant address is not registered.
             */
            function isOperatorAllowed(address registrant, address operator) external view returns (bool) {
                address registration = _registrations[registrant];
                if (registration != address(0)) {
                    EnumerableSet.AddressSet storage filteredOperatorsRef;
                    EnumerableSet.Bytes32Set storage filteredCodeHashesRef;
                    filteredOperatorsRef = _filteredOperators[registration];
                    filteredCodeHashesRef = _filteredCodeHashes[registration];
                    if (filteredOperatorsRef.contains(operator)) {
                        revert AddressFiltered(operator);
                    }
                    if (operator.code.length > 0) {
                        bytes32 codeHash = operator.codehash;
                        if (filteredCodeHashesRef.contains(codeHash)) {
                            revert CodeHashFiltered(operator, codeHash);
                        }
                    }
                }
                return true;
            }
            //////////////////
            // AUTH METHODS //
            //////////////////
            /**
             * @notice Registers an address with the registry. May be called by address itself or by EIP-173 owner.
             */
            function register(address registrant) external onlyAddressOrOwner(registrant) {
                if (_registrations[registrant] != address(0)) {
                    revert AlreadyRegistered();
                }
                _registrations[registrant] = registrant;
                emit RegistrationUpdated(registrant, true);
            }
            /**
             * @notice Unregisters an address with the registry and removes its subscription. May be called by address itself or by EIP-173 owner.
             *         Note that this does not remove any filtered addresses or codeHashes.
             *         Also note that any subscriptions to this registrant will still be active and follow the existing filtered addresses and codehashes.
             */
            function unregister(address registrant) external onlyAddressOrOwner(registrant) {
                address registration = _registrations[registrant];
                if (registration == address(0)) {
                    revert NotRegistered(registrant);
                }
                if (registration != registrant) {
                    _subscribers[registration].remove(registrant);
                    emit SubscriptionUpdated(registrant, registration, false);
                }
                _registrations[registrant] = address(0);
                emit RegistrationUpdated(registrant, false);
            }
            /**
             * @notice Registers an address with the registry and "subscribes" to another address's filtered operators and codeHashes.
             */
            function registerAndSubscribe(address registrant, address subscription) external onlyAddressOrOwner(registrant) {
                address registration = _registrations[registrant];
                if (registration != address(0)) {
                    revert AlreadyRegistered();
                }
                if (registrant == subscription) {
                    revert CannotSubscribeToSelf();
                }
                address subscriptionRegistration = _registrations[subscription];
                if (subscriptionRegistration == address(0)) {
                    revert NotRegistered(subscription);
                }
                if (subscriptionRegistration != subscription) {
                    revert CannotSubscribeToRegistrantWithSubscription(subscription);
                }
                _registrations[registrant] = subscription;
                _subscribers[subscription].add(registrant);
                emit RegistrationUpdated(registrant, true);
                emit SubscriptionUpdated(registrant, subscription, true);
            }
            /**
             * @notice Registers an address with the registry and copies the filtered operators and codeHashes from another
             *         address without subscribing.
             */
            function registerAndCopyEntries(address registrant, address registrantToCopy)
                external
                onlyAddressOrOwner(registrant)
            {
                if (registrantToCopy == registrant) {
                    revert CannotCopyFromSelf();
                }
                address registration = _registrations[registrant];
                if (registration != address(0)) {
                    revert AlreadyRegistered();
                }
                address registrantRegistration = _registrations[registrantToCopy];
                if (registrantRegistration == address(0)) {
                    revert NotRegistered(registrantToCopy);
                }
                _registrations[registrant] = registrant;
                emit RegistrationUpdated(registrant, true);
                _copyEntries(registrant, registrantToCopy);
            }
            /**
             * @notice Update an operator address for a registered address - when filtered is true, the operator is filtered.
             */
            function updateOperator(address registrant, address operator, bool filtered)
                external
                onlyAddressOrOwner(registrant)
            {
                address registration = _registrations[registrant];
                if (registration == address(0)) {
                    revert NotRegistered(registrant);
                }
                if (registration != registrant) {
                    revert CannotUpdateWhileSubscribed(registration);
                }
                EnumerableSet.AddressSet storage filteredOperatorsRef = _filteredOperators[registrant];
                if (!filtered) {
                    bool removed = filteredOperatorsRef.remove(operator);
                    if (!removed) {
                        revert AddressNotFiltered(operator);
                    }
                } else {
                    bool added = filteredOperatorsRef.add(operator);
                    if (!added) {
                        revert AddressAlreadyFiltered(operator);
                    }
                }
                emit OperatorUpdated(registrant, operator, filtered);
            }
            /**
             * @notice Update a codeHash for a registered address - when filtered is true, the codeHash is filtered.
             */
            function updateCodeHash(address registrant, bytes32 codeHash, bool filtered)
                external
                onlyAddressOrOwner(registrant)
            {
                if (codeHash == EOA_CODEHASH) {
                    revert CannotFilterEOAs();
                }
                address registration = _registrations[registrant];
                if (registration == address(0)) {
                    revert NotRegistered(registrant);
                }
                if (registration != registrant) {
                    revert CannotUpdateWhileSubscribed(registration);
                }
                EnumerableSet.Bytes32Set storage filteredCodeHashesRef = _filteredCodeHashes[registrant];
                if (!filtered) {
                    bool removed = filteredCodeHashesRef.remove(codeHash);
                    if (!removed) {
                        revert CodeHashNotFiltered(codeHash);
                    }
                } else {
                    bool added = filteredCodeHashesRef.add(codeHash);
                    if (!added) {
                        revert CodeHashAlreadyFiltered(codeHash);
                    }
                }
                emit CodeHashUpdated(registrant, codeHash, filtered);
            }
            /**
             * @notice Update multiple operators for a registered address - when filtered is true, the operators will be filtered. Reverts on duplicates.
             */
            function updateOperators(address registrant, address[] calldata operators, bool filtered)
                external
                onlyAddressOrOwner(registrant)
            {
                address registration = _registrations[registrant];
                if (registration == address(0)) {
                    revert NotRegistered(registrant);
                }
                if (registration != registrant) {
                    revert CannotUpdateWhileSubscribed(registration);
                }
                EnumerableSet.AddressSet storage filteredOperatorsRef = _filteredOperators[registrant];
                uint256 operatorsLength = operators.length;
                unchecked {
                    if (!filtered) {
                        for (uint256 i = 0; i < operatorsLength; ++i) {
                            address operator = operators[i];
                            bool removed = filteredOperatorsRef.remove(operator);
                            if (!removed) {
                                revert AddressNotFiltered(operator);
                            }
                        }
                    } else {
                        for (uint256 i = 0; i < operatorsLength; ++i) {
                            address operator = operators[i];
                            bool added = filteredOperatorsRef.add(operator);
                            if (!added) {
                                revert AddressAlreadyFiltered(operator);
                            }
                        }
                    }
                }
                emit OperatorsUpdated(registrant, operators, filtered);
            }
            /**
             * @notice Update multiple codeHashes for a registered address - when filtered is true, the codeHashes will be filtered. Reverts on duplicates.
             */
            function updateCodeHashes(address registrant, bytes32[] calldata codeHashes, bool filtered)
                external
                onlyAddressOrOwner(registrant)
            {
                address registration = _registrations[registrant];
                if (registration == address(0)) {
                    revert NotRegistered(registrant);
                }
                if (registration != registrant) {
                    revert CannotUpdateWhileSubscribed(registration);
                }
                EnumerableSet.Bytes32Set storage filteredCodeHashesRef = _filteredCodeHashes[registrant];
                uint256 codeHashesLength = codeHashes.length;
                unchecked {
                    if (!filtered) {
                        for (uint256 i = 0; i < codeHashesLength; ++i) {
                            bytes32 codeHash = codeHashes[i];
                            bool removed = filteredCodeHashesRef.remove(codeHash);
                            if (!removed) {
                                revert CodeHashNotFiltered(codeHash);
                            }
                        }
                    } else {
                        for (uint256 i = 0; i < codeHashesLength; ++i) {
                            bytes32 codeHash = codeHashes[i];
                            if (codeHash == EOA_CODEHASH) {
                                revert CannotFilterEOAs();
                            }
                            bool added = filteredCodeHashesRef.add(codeHash);
                            if (!added) {
                                revert CodeHashAlreadyFiltered(codeHash);
                            }
                        }
                    }
                }
                emit CodeHashesUpdated(registrant, codeHashes, filtered);
            }
            /**
             * @notice Subscribe an address to another registrant's filtered operators and codeHashes. Will remove previous
             *         subscription if present.
             *         Note that accounts with subscriptions may go on to subscribe to other accounts - in this case,
             *         subscriptions will not be forwarded. Instead the former subscription's existing entries will still be
             *         used.
             */
            function subscribe(address registrant, address newSubscription) external onlyAddressOrOwner(registrant) {
                if (registrant == newSubscription) {
                    revert CannotSubscribeToSelf();
                }
                if (newSubscription == address(0)) {
                    revert CannotSubscribeToZeroAddress();
                }
                address registration = _registrations[registrant];
                if (registration == address(0)) {
                    revert NotRegistered(registrant);
                }
                if (registration == newSubscription) {
                    revert AlreadySubscribed(newSubscription);
                }
                address newSubscriptionRegistration = _registrations[newSubscription];
                if (newSubscriptionRegistration == address(0)) {
                    revert NotRegistered(newSubscription);
                }
                if (newSubscriptionRegistration != newSubscription) {
                    revert CannotSubscribeToRegistrantWithSubscription(newSubscription);
                }
                if (registration != registrant) {
                    _subscribers[registration].remove(registrant);
                    emit SubscriptionUpdated(registrant, registration, false);
                }
                _registrations[registrant] = newSubscription;
                _subscribers[newSubscription].add(registrant);
                emit SubscriptionUpdated(registrant, newSubscription, true);
            }
            /**
             * @notice Unsubscribe an address from its current subscribed registrant, and optionally copy its filtered operators and codeHashes.
             */
            function unsubscribe(address registrant, bool copyExistingEntries) external onlyAddressOrOwner(registrant) {
                address registration = _registrations[registrant];
                if (registration == address(0)) {
                    revert NotRegistered(registrant);
                }
                if (registration == registrant) {
                    revert NotSubscribed();
                }
                _subscribers[registration].remove(registrant);
                _registrations[registrant] = registrant;
                emit SubscriptionUpdated(registrant, registration, false);
                if (copyExistingEntries) {
                    _copyEntries(registrant, registration);
                }
            }
            /**
             * @notice Copy filtered operators and codeHashes from a different registrantToCopy to addr.
             */
            function copyEntriesOf(address registrant, address registrantToCopy) external onlyAddressOrOwner(registrant) {
                if (registrant == registrantToCopy) {
                    revert CannotCopyFromSelf();
                }
                address registration = _registrations[registrant];
                if (registration == address(0)) {
                    revert NotRegistered(registrant);
                }
                if (registration != registrant) {
                    revert CannotUpdateWhileSubscribed(registration);
                }
                address registrantRegistration = _registrations[registrantToCopy];
                if (registrantRegistration == address(0)) {
                    revert NotRegistered(registrantToCopy);
                }
                _copyEntries(registrant, registrantToCopy);
            }
            /// @dev helper to copy entries from registrantToCopy to registrant and emit events
            function _copyEntries(address registrant, address registrantToCopy) private {
                EnumerableSet.AddressSet storage filteredOperatorsRef = _filteredOperators[registrantToCopy];
                EnumerableSet.Bytes32Set storage filteredCodeHashesRef = _filteredCodeHashes[registrantToCopy];
                uint256 filteredOperatorsLength = filteredOperatorsRef.length();
                uint256 filteredCodeHashesLength = filteredCodeHashesRef.length();
                unchecked {
                    for (uint256 i = 0; i < filteredOperatorsLength; ++i) {
                        address operator = filteredOperatorsRef.at(i);
                        bool added = _filteredOperators[registrant].add(operator);
                        if (added) {
                            emit OperatorUpdated(registrant, operator, true);
                        }
                    }
                    for (uint256 i = 0; i < filteredCodeHashesLength; ++i) {
                        bytes32 codehash = filteredCodeHashesRef.at(i);
                        bool added = _filteredCodeHashes[registrant].add(codehash);
                        if (added) {
                            emit CodeHashUpdated(registrant, codehash, true);
                        }
                    }
                }
            }
            //////////////////
            // VIEW METHODS //
            //////////////////
            /**
             * @notice Get the subscription address of a given registrant, if any.
             */
            function subscriptionOf(address registrant) external view returns (address subscription) {
                subscription = _registrations[registrant];
                if (subscription == address(0)) {
                    revert NotRegistered(registrant);
                } else if (subscription == registrant) {
                    subscription = address(0);
                }
            }
            /**
             * @notice Get the set of addresses subscribed to a given registrant.
             *         Note that order is not guaranteed as updates are made.
             */
            function subscribers(address registrant) external view returns (address[] memory) {
                return _subscribers[registrant].values();
            }
            /**
             * @notice Get the subscriber at a given index in the set of addresses subscribed to a given registrant.
             *         Note that order is not guaranteed as updates are made.
             */
            function subscriberAt(address registrant, uint256 index) external view returns (address) {
                return _subscribers[registrant].at(index);
            }
            /**
             * @notice Returns true if operator is filtered by a given address or its subscription.
             */
            function isOperatorFiltered(address registrant, address operator) external view returns (bool) {
                address registration = _registrations[registrant];
                if (registration != registrant) {
                    return _filteredOperators[registration].contains(operator);
                }
                return _filteredOperators[registrant].contains(operator);
            }
            /**
             * @notice Returns true if a codeHash is filtered by a given address or its subscription.
             */
            function isCodeHashFiltered(address registrant, bytes32 codeHash) external view returns (bool) {
                address registration = _registrations[registrant];
                if (registration != registrant) {
                    return _filteredCodeHashes[registration].contains(codeHash);
                }
                return _filteredCodeHashes[registrant].contains(codeHash);
            }
            /**
             * @notice Returns true if the hash of an address's code is filtered by a given address or its subscription.
             */
            function isCodeHashOfFiltered(address registrant, address operatorWithCode) external view returns (bool) {
                bytes32 codeHash = operatorWithCode.codehash;
                address registration = _registrations[registrant];
                if (registration != registrant) {
                    return _filteredCodeHashes[registration].contains(codeHash);
                }
                return _filteredCodeHashes[registrant].contains(codeHash);
            }
            /**
             * @notice Returns true if an address has registered
             */
            function isRegistered(address registrant) external view returns (bool) {
                return _registrations[registrant] != address(0);
            }
            /**
             * @notice Returns a list of filtered operators for a given address or its subscription.
             */
            function filteredOperators(address registrant) external view returns (address[] memory) {
                address registration = _registrations[registrant];
                if (registration != registrant) {
                    return _filteredOperators[registration].values();
                }
                return _filteredOperators[registrant].values();
            }
            /**
             * @notice Returns the set of filtered codeHashes for a given address or its subscription.
             *         Note that order is not guaranteed as updates are made.
             */
            function filteredCodeHashes(address registrant) external view returns (bytes32[] memory) {
                address registration = _registrations[registrant];
                if (registration != registrant) {
                    return _filteredCodeHashes[registration].values();
                }
                return _filteredCodeHashes[registrant].values();
            }
            /**
             * @notice Returns the filtered operator at the given index of the set of filtered operators for a given address or
             *         its subscription.
             *         Note that order is not guaranteed as updates are made.
             */
            function filteredOperatorAt(address registrant, uint256 index) external view returns (address) {
                address registration = _registrations[registrant];
                if (registration != registrant) {
                    return _filteredOperators[registration].at(index);
                }
                return _filteredOperators[registrant].at(index);
            }
            /**
             * @notice Returns the filtered codeHash at the given index of the list of filtered codeHashes for a given address or
             *         its subscription.
             *         Note that order is not guaranteed as updates are made.
             */
            function filteredCodeHashAt(address registrant, uint256 index) external view returns (bytes32) {
                address registration = _registrations[registrant];
                if (registration != registrant) {
                    return _filteredCodeHashes[registration].at(index);
                }
                return _filteredCodeHashes[registrant].at(index);
            }
            /// @dev Convenience method to compute the code hash of an arbitrary contract
            function codeHashOf(address a) external view returns (bytes32) {
                return a.codehash;
            }
        }
        // SPDX-License-Identifier: MIT
        pragma solidity ^0.8.13;
        contract OperatorFilterRegistryErrorsAndEvents {
            error CannotFilterEOAs();
            error AddressAlreadyFiltered(address operator);
            error AddressNotFiltered(address operator);
            error CodeHashAlreadyFiltered(bytes32 codeHash);
            error CodeHashNotFiltered(bytes32 codeHash);
            error OnlyAddressOrOwner();
            error NotRegistered(address registrant);
            error AlreadyRegistered();
            error AlreadySubscribed(address subscription);
            error NotSubscribed();
            error CannotUpdateWhileSubscribed(address subscription);
            error CannotSubscribeToSelf();
            error CannotSubscribeToZeroAddress();
            error NotOwnable();
            error AddressFiltered(address filtered);
            error CodeHashFiltered(address account, bytes32 codeHash);
            error CannotSubscribeToRegistrantWithSubscription(address registrant);
            error CannotCopyFromSelf();
            event RegistrationUpdated(address indexed registrant, bool indexed registered);
            event OperatorUpdated(address indexed registrant, address indexed operator, bool indexed filtered);
            event OperatorsUpdated(address indexed registrant, address[] operators, bool indexed filtered);
            event CodeHashUpdated(address indexed registrant, bytes32 indexed codeHash, bool indexed filtered);
            event CodeHashesUpdated(address indexed registrant, bytes32[] codeHashes, bool indexed filtered);
            event SubscriptionUpdated(address indexed registrant, address indexed subscription, bool indexed subscribed);
        }
        

        File 3 of 4: DropERC721
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.11;
        /// @author thirdweb
        //   $$\\     $$\\       $$\\                 $$\\                         $$\\
        //   $$ |    $$ |      \\__|                $$ |                        $$ |
        // $$$$$$\\   $$$$$$$\\  $$\\  $$$$$$\\   $$$$$$$ |$$\\  $$\\  $$\\  $$$$$$\\  $$$$$$$\\
        // \\_$$  _|  $$  __$$\\ $$ |$$  __$$\\ $$  __$$ |$$ | $$ | $$ |$$  __$$\\ $$  __$$\\
        //   $$ |    $$ |  $$ |$$ |$$ |  \\__|$$ /  $$ |$$ | $$ | $$ |$$$$$$$$ |$$ |  $$ |
        //   $$ |$$\\ $$ |  $$ |$$ |$$ |      $$ |  $$ |$$ | $$ | $$ |$$   ____|$$ |  $$ |
        //   \\$$$$  |$$ |  $$ |$$ |$$ |      \\$$$$$$$ |\\$$$$$\\$$$$  |\\$$$$$$$\\ $$$$$$$  |
        //    \\____/ \\__|  \\__|\\__|\\__|       \\_______| \\_____\\____/  \\_______|\\_______/
        //  ==========  External imports    ==========
        import "@openzeppelin/contracts-upgradeable/utils/MulticallUpgradeable.sol";
        import "@openzeppelin/contracts-upgradeable/utils/StringsUpgradeable.sol";
        import "@openzeppelin/contracts-upgradeable/interfaces/IERC2981Upgradeable.sol";
        import "../eip/ERC721AVirtualApproveUpgradeable.sol";
        //  ==========  Internal imports    ==========
        import "../openzeppelin-presets/metatx/ERC2771ContextUpgradeable.sol";
        import "../lib/CurrencyTransferLib.sol";
        //  ==========  Features    ==========
        import "../extension/ContractMetadata.sol";
        import "../extension/PlatformFee.sol";
        import "../extension/Royalty.sol";
        import "../extension/PrimarySale.sol";
        import "../extension/Ownable.sol";
        import "../extension/DelayedReveal.sol";
        import "../extension/LazyMint.sol";
        import "../extension/PermissionsEnumerable.sol";
        import "../extension/Drop.sol";
        // OpenSea operator filter
        import "../extension/DefaultOperatorFiltererUpgradeable.sol";
        contract DropERC721 is
            Initializable,
            ContractMetadata,
            PlatformFee,
            Royalty,
            PrimarySale,
            Ownable,
            DelayedReveal,
            LazyMint,
            PermissionsEnumerable,
            Drop,
            ERC2771ContextUpgradeable,
            MulticallUpgradeable,
            DefaultOperatorFiltererUpgradeable,
            ERC721AUpgradeable
        {
            using StringsUpgradeable for uint256;
            /*///////////////////////////////////////////////////////////////
                                    State variables
            //////////////////////////////////////////////////////////////*/
            /// @dev Only transfers to or from TRANSFER_ROLE holders are valid, when transfers are restricted.
            bytes32 private transferRole;
            /// @dev Only MINTER_ROLE holders can sign off on `MintRequest`s and lazy mint tokens.
            bytes32 private minterRole;
            /// @dev Max bps in the thirdweb system.
            uint256 private constant MAX_BPS = 10_000;
            /// @dev Global max total supply of NFTs.
            uint256 public maxTotalSupply;
            /// @dev Emitted when the global max supply of tokens is updated.
            event MaxTotalSupplyUpdated(uint256 maxTotalSupply);
            /*///////////////////////////////////////////////////////////////
                            Constructor + initializer logic
            //////////////////////////////////////////////////////////////*/
            constructor() initializer {}
            /// @dev Initiliazes the contract, like a constructor.
            function initialize(
                address _defaultAdmin,
                string memory _name,
                string memory _symbol,
                string memory _contractURI,
                address[] memory _trustedForwarders,
                address _saleRecipient,
                address _royaltyRecipient,
                uint128 _royaltyBps,
                uint128 _platformFeeBps,
                address _platformFeeRecipient
            ) external initializer {
                bytes32 _transferRole = keccak256("TRANSFER_ROLE");
                bytes32 _minterRole = keccak256("MINTER_ROLE");
                // Initialize inherited contracts, most base-like -> most derived.
                __ERC2771Context_init(_trustedForwarders);
                __ERC721A_init(_name, _symbol);
                __DefaultOperatorFilterer_init();
                _setupContractURI(_contractURI);
                _setupOwner(_defaultAdmin);
                _setOperatorRestriction(true);
                _setupRole(DEFAULT_ADMIN_ROLE, _defaultAdmin);
                _setupRole(_minterRole, _defaultAdmin);
                _setupRole(_transferRole, _defaultAdmin);
                _setupRole(_transferRole, address(0));
                _setupPlatformFeeInfo(_platformFeeRecipient, _platformFeeBps);
                _setupDefaultRoyaltyInfo(_royaltyRecipient, _royaltyBps);
                _setupPrimarySaleRecipient(_saleRecipient);
                transferRole = _transferRole;
                minterRole = _minterRole;
            }
            /*///////////////////////////////////////////////////////////////
                                ERC 165 / 721 / 2981 logic
            //////////////////////////////////////////////////////////////*/
            /// @dev Returns the URI for a given tokenId.
            function tokenURI(uint256 _tokenId) public view override returns (string memory) {
                (uint256 batchId, ) = _getBatchId(_tokenId);
                string memory batchUri = _getBaseURI(_tokenId);
                if (isEncryptedBatch(batchId)) {
                    return string(abi.encodePacked(batchUri, "0"));
                } else {
                    return string(abi.encodePacked(batchUri, _tokenId.toString()));
                }
            }
            /// @dev See ERC 165
            function supportsInterface(bytes4 interfaceId)
                public
                view
                virtual
                override(ERC721AUpgradeable, IERC165)
                returns (bool)
            {
                return super.supportsInterface(interfaceId) || type(IERC2981Upgradeable).interfaceId == interfaceId;
            }
            /*///////////////////////////////////////////////////////////////
                                Contract identifiers
            //////////////////////////////////////////////////////////////*/
            function contractType() external pure returns (bytes32) {
                return bytes32("DropERC721");
            }
            function contractVersion() external pure returns (uint8) {
                return uint8(4);
            }
            /*///////////////////////////////////////////////////////////////
                            Lazy minting + delayed-reveal logic
            //////////////////////////////////////////////////////////////*/
            /**
             *  @dev Lets an account with `MINTER_ROLE` lazy mint 'n' NFTs.
             *       The URIs for each token is the provided `_baseURIForTokens` + `{tokenId}`.
             */
            function lazyMint(
                uint256 _amount,
                string calldata _baseURIForTokens,
                bytes calldata _data
            ) public override returns (uint256 batchId) {
                if (_data.length > 0) {
                    (bytes memory encryptedURI, bytes32 provenanceHash) = abi.decode(_data, (bytes, bytes32));
                    if (encryptedURI.length != 0 && provenanceHash != "") {
                        _setEncryptedData(nextTokenIdToLazyMint + _amount, _data);
                    }
                }
                return super.lazyMint(_amount, _baseURIForTokens, _data);
            }
            /// @dev Lets an account with `MINTER_ROLE` reveal the URI for a batch of 'delayed-reveal' NFTs.
            function reveal(uint256 _index, bytes calldata _key)
                external
                onlyRole(minterRole)
                returns (string memory revealedURI)
            {
                uint256 batchId = getBatchIdAtIndex(_index);
                revealedURI = getRevealURI(batchId, _key);
                _setEncryptedData(batchId, "");
                _setBaseURI(batchId, revealedURI);
                emit TokenURIRevealed(_index, revealedURI);
            }
            /*///////////////////////////////////////////////////////////////
                                Setter functions
            //////////////////////////////////////////////////////////////*/
            /// @dev Lets a contract admin set the global maximum supply for collection's NFTs.
            function setMaxTotalSupply(uint256 _maxTotalSupply) external onlyRole(DEFAULT_ADMIN_ROLE) {
                maxTotalSupply = _maxTotalSupply;
                emit MaxTotalSupplyUpdated(_maxTotalSupply);
            }
            /*///////////////////////////////////////////////////////////////
                                Internal functions
            //////////////////////////////////////////////////////////////*/
            /// @dev Runs before every `claim` function call.
            function _beforeClaim(
                address,
                uint256 _quantity,
                address,
                uint256,
                AllowlistProof calldata,
                bytes memory
            ) internal view override {
                require(_currentIndex + _quantity <= nextTokenIdToLazyMint, "!Tokens");
                require(maxTotalSupply == 0 || _currentIndex + _quantity <= maxTotalSupply, "exceed max total supply.");
            }
            /// @dev Collects and distributes the primary sale value of NFTs being claimed.
            function _collectPriceOnClaim(
                address _primarySaleRecipient,
                uint256 _quantityToClaim,
                address _currency,
                uint256 _pricePerToken
            ) internal override {
                if (_pricePerToken == 0) {
                    return;
                }
                (address platformFeeRecipient, uint16 platformFeeBps) = getPlatformFeeInfo();
                address saleRecipient = _primarySaleRecipient == address(0) ? primarySaleRecipient() : _primarySaleRecipient;
                uint256 totalPrice = _quantityToClaim * _pricePerToken;
                uint256 platformFees = (totalPrice * platformFeeBps) / MAX_BPS;
                if (_currency == CurrencyTransferLib.NATIVE_TOKEN) {
                    if (msg.value != totalPrice) {
                        revert("!Price");
                    }
                }
                CurrencyTransferLib.transferCurrency(_currency, _msgSender(), platformFeeRecipient, platformFees);
                CurrencyTransferLib.transferCurrency(_currency, _msgSender(), saleRecipient, totalPrice - platformFees);
            }
            /// @dev Transfers the NFTs being claimed.
            function _transferTokensOnClaim(address _to, uint256 _quantityBeingClaimed)
                internal
                override
                returns (uint256 startTokenId)
            {
                startTokenId = _currentIndex;
                _safeMint(_to, _quantityBeingClaimed);
            }
            /// @dev Checks whether platform fee info can be set in the given execution context.
            function _canSetPlatformFeeInfo() internal view override returns (bool) {
                return hasRole(DEFAULT_ADMIN_ROLE, _msgSender());
            }
            /// @dev Checks whether primary sale recipient can be set in the given execution context.
            function _canSetPrimarySaleRecipient() internal view override returns (bool) {
                return hasRole(DEFAULT_ADMIN_ROLE, _msgSender());
            }
            /// @dev Checks whether owner can be set in the given execution context.
            function _canSetOwner() internal view override returns (bool) {
                return hasRole(DEFAULT_ADMIN_ROLE, _msgSender());
            }
            /// @dev Checks whether royalty info can be set in the given execution context.
            function _canSetRoyaltyInfo() internal view override returns (bool) {
                return hasRole(DEFAULT_ADMIN_ROLE, _msgSender());
            }
            /// @dev Checks whether contract metadata can be set in the given execution context.
            function _canSetContractURI() internal view override returns (bool) {
                return hasRole(DEFAULT_ADMIN_ROLE, _msgSender());
            }
            /// @dev Checks whether platform fee info can be set in the given execution context.
            function _canSetClaimConditions() internal view override returns (bool) {
                return hasRole(DEFAULT_ADMIN_ROLE, _msgSender());
            }
            /// @dev Returns whether lazy minting can be done in the given execution context.
            function _canLazyMint() internal view virtual override returns (bool) {
                return hasRole(minterRole, _msgSender());
            }
            /// @dev Returns whether operator restriction can be set in the given execution context.
            function _canSetOperatorRestriction() internal virtual override returns (bool) {
                return hasRole(DEFAULT_ADMIN_ROLE, _msgSender());
            }
            /*///////////////////////////////////////////////////////////////
                                Miscellaneous
            //////////////////////////////////////////////////////////////*/
            /**
             * Returns the total amount of tokens minted in the contract.
             */
            function totalMinted() external view returns (uint256) {
                unchecked {
                    return _currentIndex - _startTokenId();
                }
            }
            /// @dev The tokenId of the next NFT that will be minted / lazy minted.
            function nextTokenIdToMint() external view returns (uint256) {
                return nextTokenIdToLazyMint;
            }
            /// @dev The next token ID of the NFT that can be claimed.
            function nextTokenIdToClaim() external view returns (uint256) {
                return _currentIndex;
            }
            /// @dev Burns `tokenId`. See {ERC721-_burn}.
            function burn(uint256 tokenId) external virtual {
                // note: ERC721AUpgradeable's `_burn(uint256,bool)` internally checks for token approvals.
                _burn(tokenId, true);
            }
            /// @dev See {ERC721-_beforeTokenTransfer}.
            function _beforeTokenTransfers(
                address from,
                address to,
                uint256 startTokenId,
                uint256 quantity
            ) internal virtual override {
                super._beforeTokenTransfers(from, to, startTokenId, quantity);
                // if transfer is restricted on the contract, we still want to allow burning and minting
                if (!hasRole(transferRole, address(0)) && from != address(0) && to != address(0)) {
                    if (!hasRole(transferRole, from) && !hasRole(transferRole, to)) {
                        revert("!Transfer-Role");
                    }
                }
            }
            /// @dev See {ERC721-setApprovalForAll}.
            function setApprovalForAll(address operator, bool approved) public override onlyAllowedOperatorApproval(operator) {
                super.setApprovalForAll(operator, approved);
            }
            /// @dev See {ERC721-approve}.
            function approve(address operator, uint256 tokenId) public override onlyAllowedOperatorApproval(operator) {
                super.approve(operator, tokenId);
            }
            /// @dev See {ERC721-_transferFrom}.
            function transferFrom(
                address from,
                address to,
                uint256 tokenId
            ) public override(ERC721AUpgradeable) onlyAllowedOperator(from) {
                super.transferFrom(from, to, tokenId);
            }
            /// @dev See {ERC721-_safeTransferFrom}.
            function safeTransferFrom(
                address from,
                address to,
                uint256 tokenId
            ) public override(ERC721AUpgradeable) onlyAllowedOperator(from) {
                super.safeTransferFrom(from, to, tokenId);
            }
            /// @dev See {ERC721-_safeTransferFrom}.
            function safeTransferFrom(
                address from,
                address to,
                uint256 tokenId,
                bytes memory data
            ) public override(ERC721AUpgradeable) onlyAllowedOperator(from) {
                super.safeTransferFrom(from, to, tokenId, data);
            }
            function _dropMsgSender() internal view virtual override returns (address) {
                return _msgSender();
            }
            function _msgSender()
                internal
                view
                virtual
                override(ContextUpgradeable, ERC2771ContextUpgradeable)
                returns (address sender)
            {
                return ERC2771ContextUpgradeable._msgSender();
            }
            function _msgData()
                internal
                view
                virtual
                override(ContextUpgradeable, ERC2771ContextUpgradeable)
                returns (bytes calldata)
            {
                return ERC2771ContextUpgradeable._msgData();
            }
        }
        // SPDX-License-Identifier: MIT
        // ERC721A Contracts v3.3.0
        // Creator: Chiru Labs
        ////////// CHANGELOG: turn `approve` to virtual //////////
        pragma solidity ^0.8.4;
        import "erc721a-upgradeable/contracts/IERC721AUpgradeable.sol";
        import "@openzeppelin/contracts-upgradeable/token/ERC721/IERC721ReceiverUpgradeable.sol";
        import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
        import "@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol";
        import "@openzeppelin/contracts-upgradeable/utils/StringsUpgradeable.sol";
        import "@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol";
        import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
        /**
         * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
         * the Metadata extension. Built to optimize for lower gas during batch mints.
         *
         * Assumes serials are sequentially minted starting at _startTokenId() (defaults to 0, e.g. 0, 1, 2, 3..).
         *
         * Assumes that an owner cannot have more than 2**64 - 1 (max value of uint64) of supply.
         *
         * Assumes that the maximum token id cannot exceed 2**256 - 1 (max value of uint256).
         */
        contract ERC721AUpgradeable is Initializable, ContextUpgradeable, ERC165Upgradeable, IERC721AUpgradeable {
            using AddressUpgradeable for address;
            using StringsUpgradeable for uint256;
            // The tokenId of the next token to be minted.
            uint256 internal _currentIndex;
            // The number of tokens burned.
            uint256 internal _burnCounter;
            // Token name
            string private _name;
            // Token symbol
            string private _symbol;
            // Mapping from token ID to ownership details
            // An empty struct value does not necessarily mean the token is unowned. See _ownershipOf implementation for details.
            mapping(uint256 => TokenOwnership) internal _ownerships;
            // Mapping owner address to address data
            mapping(address => AddressData) private _addressData;
            // Mapping from token ID to approved address
            mapping(uint256 => address) private _tokenApprovals;
            // Mapping from owner to operator approvals
            mapping(address => mapping(address => bool)) private _operatorApprovals;
            function __ERC721A_init(string memory name_, string memory symbol_) internal onlyInitializing {
                __ERC721A_init_unchained(name_, symbol_);
            }
            function __ERC721A_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing {
                _name = name_;
                _symbol = symbol_;
                _currentIndex = _startTokenId();
            }
            /**
             * To change the starting tokenId, please override this function.
             */
            function _startTokenId() internal view virtual returns (uint256) {
                return 0;
            }
            /**
             * @dev Burned tokens are calculated here, use _totalMinted() if you want to count just minted tokens.
             */
            function totalSupply() public view override returns (uint256) {
                // Counter underflow is impossible as _burnCounter cannot be incremented
                // more than _currentIndex - _startTokenId() times
                unchecked {
                    return _currentIndex - _burnCounter - _startTokenId();
                }
            }
            /**
             * Returns the total amount of tokens minted in the contract.
             */
            function _totalMinted() internal view returns (uint256) {
                // Counter underflow is impossible as _currentIndex does not decrement,
                // and it is initialized to _startTokenId()
                unchecked {
                    return _currentIndex - _startTokenId();
                }
            }
            /**
             * @dev See {IERC165-supportsInterface}.
             */
            function supportsInterface(bytes4 interfaceId)
                public
                view
                virtual
                override(ERC165Upgradeable, IERC165Upgradeable)
                returns (bool)
            {
                return
                    interfaceId == type(IERC721Upgradeable).interfaceId ||
                    interfaceId == type(IERC721MetadataUpgradeable).interfaceId ||
                    super.supportsInterface(interfaceId);
            }
            /**
             * @dev See {IERC721-balanceOf}.
             */
            function balanceOf(address owner) public view override returns (uint256) {
                if (owner == address(0)) revert BalanceQueryForZeroAddress();
                return uint256(_addressData[owner].balance);
            }
            /**
             * Returns the number of tokens minted by `owner`.
             */
            function _numberMinted(address owner) internal view returns (uint256) {
                return uint256(_addressData[owner].numberMinted);
            }
            /**
             * Returns the number of tokens burned by or on behalf of `owner`.
             */
            function _numberBurned(address owner) internal view returns (uint256) {
                return uint256(_addressData[owner].numberBurned);
            }
            /**
             * Returns the auxillary data for `owner`. (e.g. number of whitelist mint slots used).
             */
            function _getAux(address owner) internal view returns (uint64) {
                return _addressData[owner].aux;
            }
            /**
             * Sets the auxillary data for `owner`. (e.g. number of whitelist mint slots used).
             * If there are multiple variables, please pack them into a uint64.
             */
            function _setAux(address owner, uint64 aux) internal {
                _addressData[owner].aux = aux;
            }
            /**
             * Gas spent here starts off proportional to the maximum mint batch size.
             * It gradually moves to O(1) as tokens get transferred around in the collection over time.
             */
            function _ownershipOf(uint256 tokenId) internal view returns (TokenOwnership memory) {
                uint256 curr = tokenId;
                unchecked {
                    if (_startTokenId() <= curr)
                        if (curr < _currentIndex) {
                            TokenOwnership memory ownership = _ownerships[curr];
                            if (!ownership.burned) {
                                if (ownership.addr != address(0)) {
                                    return ownership;
                                }
                                // Invariant:
                                // There will always be an ownership that has an address and is not burned
                                // before an ownership that does not have an address and is not burned.
                                // Hence, curr will not underflow.
                                while (true) {
                                    curr--;
                                    ownership = _ownerships[curr];
                                    if (ownership.addr != address(0)) {
                                        return ownership;
                                    }
                                }
                            }
                        }
                }
                revert OwnerQueryForNonexistentToken();
            }
            /**
             * @dev See {IERC721-ownerOf}.
             */
            function ownerOf(uint256 tokenId) public view override returns (address) {
                return _ownershipOf(tokenId).addr;
            }
            /**
             * @dev See {IERC721Metadata-name}.
             */
            function name() public view virtual override returns (string memory) {
                return _name;
            }
            /**
             * @dev See {IERC721Metadata-symbol}.
             */
            function symbol() public view virtual override returns (string memory) {
                return _symbol;
            }
            /**
             * @dev See {IERC721Metadata-tokenURI}.
             */
            function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
                if (!_exists(tokenId)) revert URIQueryForNonexistentToken();
                string memory baseURI = _baseURI();
                return bytes(baseURI).length != 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
            }
            /**
             * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
             * token will be the concatenation of the `baseURI` and the `tokenId`. Empty
             * by default, can be overriden in child contracts.
             */
            function _baseURI() internal view virtual returns (string memory) {
                return "";
            }
            /**
             * @dev See {IERC721-approve}.
             */
            function approve(address to, uint256 tokenId) public virtual override {
                address owner = ERC721AUpgradeable.ownerOf(tokenId);
                if (to == owner) revert ApprovalToCurrentOwner();
                if (_msgSender() != owner)
                    if (!isApprovedForAll(owner, _msgSender())) {
                        revert ApprovalCallerNotOwnerNorApproved();
                    }
                _approve(to, tokenId, owner);
            }
            /**
             * @dev See {IERC721-getApproved}.
             */
            function getApproved(uint256 tokenId) public view override returns (address) {
                if (!_exists(tokenId)) revert ApprovalQueryForNonexistentToken();
                return _tokenApprovals[tokenId];
            }
            /**
             * @dev See {IERC721-setApprovalForAll}.
             */
            function setApprovalForAll(address operator, bool approved) public virtual override {
                if (operator == _msgSender()) revert ApproveToCaller();
                _operatorApprovals[_msgSender()][operator] = approved;
                emit ApprovalForAll(_msgSender(), operator, approved);
            }
            /**
             * @dev See {IERC721-isApprovedForAll}.
             */
            function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
                return _operatorApprovals[owner][operator];
            }
            /**
             * @dev See {IERC721-transferFrom}.
             */
            function transferFrom(
                address from,
                address to,
                uint256 tokenId
            ) public virtual override {
                _transfer(from, to, tokenId);
            }
            /**
             * @dev See {IERC721-safeTransferFrom}.
             */
            function safeTransferFrom(
                address from,
                address to,
                uint256 tokenId
            ) public virtual override {
                safeTransferFrom(from, to, tokenId, "");
            }
            /**
             * @dev See {IERC721-safeTransferFrom}.
             */
            function safeTransferFrom(
                address from,
                address to,
                uint256 tokenId,
                bytes memory _data
            ) public virtual override {
                _transfer(from, to, tokenId);
                if (to.isContract())
                    if (!_checkContractOnERC721Received(from, to, tokenId, _data)) {
                        revert TransferToNonERC721ReceiverImplementer();
                    }
            }
            /**
             * @dev Returns whether `tokenId` exists.
             *
             * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
             *
             * Tokens start existing when they are minted (`_mint`),
             */
            function _exists(uint256 tokenId) internal view returns (bool) {
                return _startTokenId() <= tokenId && tokenId < _currentIndex && !_ownerships[tokenId].burned;
            }
            /**
             * @dev Equivalent to `_safeMint(to, quantity, '')`.
             */
            function _safeMint(address to, uint256 quantity) internal {
                _safeMint(to, quantity, "");
            }
            /**
             * @dev Safely mints `quantity` tokens and transfers them to `to`.
             *
             * Requirements:
             *
             * - If `to` refers to a smart contract, it must implement
             *   {IERC721Receiver-onERC721Received}, which is called for each safe transfer.
             * - `quantity` must be greater than 0.
             *
             * Emits a {Transfer} event.
             */
            function _safeMint(
                address to,
                uint256 quantity,
                bytes memory _data
            ) internal {
                uint256 startTokenId = _currentIndex;
                if (to == address(0)) revert MintToZeroAddress();
                if (quantity == 0) revert MintZeroQuantity();
                _beforeTokenTransfers(address(0), to, startTokenId, quantity);
                // Overflows are incredibly unrealistic.
                // balance or numberMinted overflow if current value of either + quantity > 1.8e19 (2**64) - 1
                // updatedIndex overflows if _currentIndex + quantity > 1.2e77 (2**256) - 1
                unchecked {
                    _addressData[to].balance += uint64(quantity);
                    _addressData[to].numberMinted += uint64(quantity);
                    _ownerships[startTokenId].addr = to;
                    _ownerships[startTokenId].startTimestamp = uint64(block.timestamp);
                    uint256 updatedIndex = startTokenId;
                    uint256 end = updatedIndex + quantity;
                    if (to.isContract()) {
                        do {
                            emit Transfer(address(0), to, updatedIndex);
                            if (!_checkContractOnERC721Received(address(0), to, updatedIndex++, _data)) {
                                revert TransferToNonERC721ReceiverImplementer();
                            }
                        } while (updatedIndex < end);
                        // Reentrancy protection
                        if (_currentIndex != startTokenId) revert();
                    } else {
                        do {
                            emit Transfer(address(0), to, updatedIndex++);
                        } while (updatedIndex < end);
                    }
                    _currentIndex = updatedIndex;
                }
                _afterTokenTransfers(address(0), to, startTokenId, quantity);
            }
            /**
             * @dev Mints `quantity` tokens and transfers them to `to`.
             *
             * Requirements:
             *
             * - `to` cannot be the zero address.
             * - `quantity` must be greater than 0.
             *
             * Emits a {Transfer} event.
             */
            function _mint(address to, uint256 quantity) internal {
                uint256 startTokenId = _currentIndex;
                if (to == address(0)) revert MintToZeroAddress();
                if (quantity == 0) revert MintZeroQuantity();
                _beforeTokenTransfers(address(0), to, startTokenId, quantity);
                // Overflows are incredibly unrealistic.
                // balance or numberMinted overflow if current value of either + quantity > 1.8e19 (2**64) - 1
                // updatedIndex overflows if _currentIndex + quantity > 1.2e77 (2**256) - 1
                unchecked {
                    _addressData[to].balance += uint64(quantity);
                    _addressData[to].numberMinted += uint64(quantity);
                    _ownerships[startTokenId].addr = to;
                    _ownerships[startTokenId].startTimestamp = uint64(block.timestamp);
                    uint256 updatedIndex = startTokenId;
                    uint256 end = updatedIndex + quantity;
                    do {
                        emit Transfer(address(0), to, updatedIndex++);
                    } while (updatedIndex < end);
                    _currentIndex = updatedIndex;
                }
                _afterTokenTransfers(address(0), to, startTokenId, quantity);
            }
            /**
             * @dev Transfers `tokenId` from `from` to `to`.
             *
             * Requirements:
             *
             * - `to` cannot be the zero address.
             * - `tokenId` token must be owned by `from`.
             *
             * Emits a {Transfer} event.
             */
            function _transfer(
                address from,
                address to,
                uint256 tokenId
            ) private {
                TokenOwnership memory prevOwnership = _ownershipOf(tokenId);
                if (prevOwnership.addr != from) revert TransferFromIncorrectOwner();
                bool isApprovedOrOwner = (_msgSender() == from ||
                    isApprovedForAll(from, _msgSender()) ||
                    getApproved(tokenId) == _msgSender());
                if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();
                if (to == address(0)) revert TransferToZeroAddress();
                _beforeTokenTransfers(from, to, tokenId, 1);
                // Clear approvals from the previous owner
                _approve(address(0), tokenId, from);
                // Underflow of the sender's balance is impossible because we check for
                // ownership above and the recipient's balance can't realistically overflow.
                // Counter overflow is incredibly unrealistic as tokenId would have to be 2**256.
                unchecked {
                    _addressData[from].balance -= 1;
                    _addressData[to].balance += 1;
                    TokenOwnership storage currSlot = _ownerships[tokenId];
                    currSlot.addr = to;
                    currSlot.startTimestamp = uint64(block.timestamp);
                    // If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
                    // Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
                    uint256 nextTokenId = tokenId + 1;
                    TokenOwnership storage nextSlot = _ownerships[nextTokenId];
                    if (nextSlot.addr == address(0)) {
                        // This will suffice for checking _exists(nextTokenId),
                        // as a burned slot cannot contain the zero address.
                        if (nextTokenId != _currentIndex) {
                            nextSlot.addr = from;
                            nextSlot.startTimestamp = prevOwnership.startTimestamp;
                        }
                    }
                }
                emit Transfer(from, to, tokenId);
                _afterTokenTransfers(from, to, tokenId, 1);
            }
            /**
             * @dev Equivalent to `_burn(tokenId, false)`.
             */
            function _burn(uint256 tokenId) internal virtual {
                _burn(tokenId, false);
            }
            /**
             * @dev Destroys `tokenId`.
             * The approval is cleared when the token is burned.
             *
             * Requirements:
             *
             * - `tokenId` must exist.
             *
             * Emits a {Transfer} event.
             */
            function _burn(uint256 tokenId, bool approvalCheck) internal virtual {
                TokenOwnership memory prevOwnership = _ownershipOf(tokenId);
                address from = prevOwnership.addr;
                if (approvalCheck) {
                    bool isApprovedOrOwner = (_msgSender() == from ||
                        isApprovedForAll(from, _msgSender()) ||
                        getApproved(tokenId) == _msgSender());
                    if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();
                }
                _beforeTokenTransfers(from, address(0), tokenId, 1);
                // Clear approvals from the previous owner
                _approve(address(0), tokenId, from);
                // Underflow of the sender's balance is impossible because we check for
                // ownership above and the recipient's balance can't realistically overflow.
                // Counter overflow is incredibly unrealistic as tokenId would have to be 2**256.
                unchecked {
                    AddressData storage addressData = _addressData[from];
                    addressData.balance -= 1;
                    addressData.numberBurned += 1;
                    // Keep track of who burned the token, and the timestamp of burning.
                    TokenOwnership storage currSlot = _ownerships[tokenId];
                    currSlot.addr = from;
                    currSlot.startTimestamp = uint64(block.timestamp);
                    currSlot.burned = true;
                    // If the ownership slot of tokenId+1 is not explicitly set, that means the burn initiator owns it.
                    // Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
                    uint256 nextTokenId = tokenId + 1;
                    TokenOwnership storage nextSlot = _ownerships[nextTokenId];
                    if (nextSlot.addr == address(0)) {
                        // This will suffice for checking _exists(nextTokenId),
                        // as a burned slot cannot contain the zero address.
                        if (nextTokenId != _currentIndex) {
                            nextSlot.addr = from;
                            nextSlot.startTimestamp = prevOwnership.startTimestamp;
                        }
                    }
                }
                emit Transfer(from, address(0), tokenId);
                _afterTokenTransfers(from, address(0), tokenId, 1);
                // Overflow not possible, as _burnCounter cannot be exceed _currentIndex times.
                unchecked {
                    _burnCounter++;
                }
            }
            /**
             * @dev Approve `to` to operate on `tokenId`
             *
             * Emits a {Approval} event.
             */
            function _approve(
                address to,
                uint256 tokenId,
                address owner
            ) private {
                _tokenApprovals[tokenId] = to;
                emit Approval(owner, to, tokenId);
            }
            /**
             * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target contract.
             *
             * @param from address representing the previous owner of the given token ID
             * @param to target address that will receive the tokens
             * @param tokenId uint256 ID of the token to be transferred
             * @param _data bytes optional data to send along with the call
             * @return bool whether the call correctly returned the expected magic value
             */
            function _checkContractOnERC721Received(
                address from,
                address to,
                uint256 tokenId,
                bytes memory _data
            ) private returns (bool) {
                try IERC721ReceiverUpgradeable(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (
                    bytes4 retval
                ) {
                    return retval == IERC721ReceiverUpgradeable(to).onERC721Received.selector;
                } catch (bytes memory reason) {
                    if (reason.length == 0) {
                        revert TransferToNonERC721ReceiverImplementer();
                    } else {
                        assembly {
                            revert(add(32, reason), mload(reason))
                        }
                    }
                }
            }
            /**
             * @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
             * And also called before burning one token.
             *
             * startTokenId - the first token id to be transferred
             * quantity - the amount to be transferred
             *
             * Calling conditions:
             *
             * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be
             * transferred to `to`.
             * - When `from` is zero, `tokenId` will be minted for `to`.
             * - When `to` is zero, `tokenId` will be burned by `from`.
             * - `from` and `to` are never both zero.
             */
            function _beforeTokenTransfers(
                address from,
                address to,
                uint256 startTokenId,
                uint256 quantity
            ) internal virtual {}
            /**
             * @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
             * minting.
             * And also called after one token has been burned.
             *
             * startTokenId - the first token id to be transferred
             * quantity - the amount to be transferred
             *
             * Calling conditions:
             *
             * - When `from` and `to` are both non-zero, `from`'s `tokenId` has been
             * transferred to `to`.
             * - When `from` is zero, `tokenId` has been minted for `to`.
             * - When `to` is zero, `tokenId` has been burned by `from`.
             * - `from` and `to` are never both zero.
             */
            function _afterTokenTransfers(
                address from,
                address to,
                uint256 startTokenId,
                uint256 quantity
            ) internal virtual {}
            /**
             * @dev This empty reserved space is put in place to allow future versions to add new
             * variables without shifting down storage in the inheritance chain.
             * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
             */
            uint256[42] private __gap;
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
        pragma solidity ^0.8.0;
        /**
         * @dev Interface of the ERC165 standard, as defined in the
         * [EIP](https://eips.ethereum.org/EIPS/eip-165).
         *
         * Implementers can declare support of contract interfaces, which can then be
         * queried by others ({ERC165Checker}).
         *
         * For an implementation, see {ERC165}.
         */
        interface IERC165 {
            /**
             * @dev Returns true if this contract implements the interface defined by
             * `interfaceId`. See the corresponding
             * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)
             * to learn more about how these ids are created.
             *
             * This function call must use less than 30 000 gas.
             */
            function supportsInterface(bytes4 interfaceId) external view returns (bool);
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /**
         * @title ERC20 interface
         * @dev see https://github.com/ethereum/EIPs/issues/20
         */
        interface IERC20 {
            function totalSupply() external view returns (uint256);
            function balanceOf(address who) external view returns (uint256);
            function allowance(address owner, address spender) external view returns (uint256);
            function transfer(address to, uint256 value) external returns (bool);
            function approve(address spender, uint256 value) external returns (bool);
            function transferFrom(
                address from,
                address to,
                uint256 value
            ) external returns (bool);
            event Transfer(address indexed from, address indexed to, uint256 value);
            event Approval(address indexed owner, address indexed spender, uint256 value);
        }
        // SPDX-License-Identifier: Apache 2.0
        pragma solidity ^0.8.0;
        import "./IERC165.sol";
        /**
         * @dev Interface for the NFT Royalty Standard.
         *
         * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal
         * support for royalty payments across all NFT marketplaces and ecosystem participants.
         *
         * _Available since v4.5._
         */
        interface IERC2981 is IERC165 {
            /**
             * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of
             * exchange. The royalty amount is denominated and should be payed in that same unit of exchange.
             */
            function royaltyInfo(uint256 tokenId, uint256 salePrice)
                external
                view
                returns (address receiver, uint256 royaltyAmount);
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        /**
         *  @title   Batch-mint Metadata
         *  @notice  The `BatchMintMetadata` is a contract extension for any base NFT contract. It lets the smart contract
         *           using this extension set metadata for `n` number of NFTs all at once. This is enabled by storing a single
         *           base URI for a batch of `n` NFTs, where the metadata for each NFT in a relevant batch is `baseURI/tokenId`.
         */
        contract BatchMintMetadata {
            /// @dev Largest tokenId of each batch of tokens with the same baseURI.
            uint256[] private batchIds;
            /// @dev Mapping from id of a batch of tokens => to base URI for the respective batch of tokens.
            mapping(uint256 => string) private baseURI;
            /**
             *  @notice         Returns the count of batches of NFTs.
             *  @dev            Each batch of tokens has an in ID and an associated `baseURI`.
             *                  See {batchIds}.
             */
            function getBaseURICount() public view returns (uint256) {
                return batchIds.length;
            }
            /**
             *  @notice         Returns the ID for the batch of tokens the given tokenId belongs to.
             *  @dev            See {getBaseURICount}.
             *  @param _index   ID of a token.
             */
            function getBatchIdAtIndex(uint256 _index) public view returns (uint256) {
                if (_index >= getBaseURICount()) {
                    revert("Invalid index");
                }
                return batchIds[_index];
            }
            /// @dev Returns the id for the batch of tokens the given tokenId belongs to.
            function _getBatchId(uint256 _tokenId) internal view returns (uint256 batchId, uint256 index) {
                uint256 numOfTokenBatches = getBaseURICount();
                uint256[] memory indices = batchIds;
                for (uint256 i = 0; i < numOfTokenBatches; i += 1) {
                    if (_tokenId < indices[i]) {
                        index = i;
                        batchId = indices[i];
                        return (batchId, index);
                    }
                }
                revert("Invalid tokenId");
            }
            /// @dev Returns the baseURI for a token. The intended metadata URI for the token is baseURI + tokenId.
            function _getBaseURI(uint256 _tokenId) internal view returns (string memory) {
                uint256 numOfTokenBatches = getBaseURICount();
                uint256[] memory indices = batchIds;
                for (uint256 i = 0; i < numOfTokenBatches; i += 1) {
                    if (_tokenId < indices[i]) {
                        return baseURI[indices[i]];
                    }
                }
                revert("Invalid tokenId");
            }
            /// @dev Sets the base URI for the batch of tokens with the given batchId.
            function _setBaseURI(uint256 _batchId, string memory _baseURI) internal {
                baseURI[_batchId] = _baseURI;
            }
            /// @dev Mints a batch of tokenIds and associates a common baseURI to all those Ids.
            function _batchMintMetadata(
                uint256 _startId,
                uint256 _amountToMint,
                string memory _baseURIForTokens
            ) internal returns (uint256 nextTokenIdToMint, uint256 batchId) {
                batchId = _startId + _amountToMint;
                nextTokenIdToMint = batchId;
                batchIds.push(batchId);
                baseURI[batchId] = _baseURIForTokens;
            }
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        import "./interface/IContractMetadata.sol";
        /**
         *  @title   Contract Metadata
         *  @notice  Thirdweb's `ContractMetadata` is a contract extension for any base contracts. It lets you set a metadata URI
         *           for you contract.
         *           Additionally, `ContractMetadata` is necessary for NFT contracts that want royalties to get distributed on OpenSea.
         */
        abstract contract ContractMetadata is IContractMetadata {
            /// @notice Returns the contract metadata URI.
            string public override contractURI;
            /**
             *  @notice         Lets a contract admin set the URI for contract-level metadata.
             *  @dev            Caller should be authorized to setup contractURI, e.g. contract admin.
             *                  See {_canSetContractURI}.
             *                  Emits {ContractURIUpdated Event}.
             *
             *  @param _uri     keccak256 hash of the role. e.g. keccak256("TRANSFER_ROLE")
             */
            function setContractURI(string memory _uri) external override {
                if (!_canSetContractURI()) {
                    revert("Not authorized");
                }
                _setupContractURI(_uri);
            }
            /// @dev Lets a contract admin set the URI for contract-level metadata.
            function _setupContractURI(string memory _uri) internal {
                string memory prevURI = contractURI;
                contractURI = _uri;
                emit ContractURIUpdated(prevURI, _uri);
            }
            /// @dev Returns whether contract metadata can be set in the given execution context.
            function _canSetContractURI() internal view virtual returns (bool);
        }
        // SPDX-License-Identifier: Apache 2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        import { OperatorFiltererUpgradeable } from "./OperatorFiltererUpgradeable.sol";
        abstract contract DefaultOperatorFiltererUpgradeable is OperatorFiltererUpgradeable {
            address constant DEFAULT_SUBSCRIPTION = address(0x3cc6CddA760b79bAfa08dF41ECFA224f810dCeB6);
            function __DefaultOperatorFilterer_init() internal {
                OperatorFiltererUpgradeable.__OperatorFilterer_init(DEFAULT_SUBSCRIPTION, true);
            }
            function subscribeToRegistry(address _subscription) external {
                require(_canSetOperatorRestriction(), "Not authorized to subscribe to registry.");
                _register(_subscription, true);
            }
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        import "./interface/IDelayedReveal.sol";
        /**
         *  @title   Delayed Reveal
         *  @notice  Thirdweb's `DelayedReveal` is a contract extension for base NFT contracts. It lets you create batches of
         *           'delayed-reveal' NFTs. You can learn more about the usage of delayed reveal NFTs here - https://blog.thirdweb.com/delayed-reveal-nfts
         */
        abstract contract DelayedReveal is IDelayedReveal {
            /// @dev Mapping from tokenId of a batch of tokens => to delayed reveal data.
            mapping(uint256 => bytes) public encryptedData;
            /// @dev Sets the delayed reveal data for a batchId.
            function _setEncryptedData(uint256 _batchId, bytes memory _encryptedData) internal {
                encryptedData[_batchId] = _encryptedData;
            }
            /**
             *  @notice             Returns revealed URI for a batch of NFTs.
             *  @dev                Reveal encrypted base URI for `_batchId` with caller/admin's `_key` used for encryption.
             *                      Reverts if there's no encrypted URI for `_batchId`.
             *                      See {encryptDecrypt}.
             *
             *  @param _batchId     ID of the batch for which URI is being revealed.
             *  @param _key         Secure key used by caller/admin for encryption of baseURI.
             *
             *  @return revealedURI Decrypted base URI.
             */
            function getRevealURI(uint256 _batchId, bytes calldata _key) public view returns (string memory revealedURI) {
                bytes memory data = encryptedData[_batchId];
                if (data.length == 0) {
                    revert("Nothing to reveal");
                }
                (bytes memory encryptedURI, bytes32 provenanceHash) = abi.decode(data, (bytes, bytes32));
                revealedURI = string(encryptDecrypt(encryptedURI, _key));
                require(keccak256(abi.encodePacked(revealedURI, _key, block.chainid)) == provenanceHash, "Incorrect key");
            }
            /**
             *  @notice         Encrypt/decrypt data on chain.
             *  @dev            Encrypt/decrypt given `data` with `key`. Uses inline assembly.
             *                  See: https://ethereum.stackexchange.com/questions/69825/decrypt-message-on-chain
             *
             *  @param data     Bytes of data to encrypt/decrypt.
             *  @param key      Secure key used by caller for encryption/decryption.
             *
             *  @return result  Output after encryption/decryption of given data.
             */
            function encryptDecrypt(bytes memory data, bytes calldata key) public pure override returns (bytes memory result) {
                // Store data length on stack for later use
                uint256 length = data.length;
                // solhint-disable-next-line no-inline-assembly
                assembly {
                    // Set result to free memory pointer
                    result := mload(0x40)
                    // Increase free memory pointer by lenght + 32
                    mstore(0x40, add(add(result, length), 32))
                    // Set result length
                    mstore(result, length)
                }
                // Iterate over the data stepping by 32 bytes
                for (uint256 i = 0; i < length; i += 32) {
                    // Generate hash of the key and offset
                    bytes32 hash = keccak256(abi.encodePacked(key, i));
                    bytes32 chunk;
                    // solhint-disable-next-line no-inline-assembly
                    assembly {
                        // Read 32-bytes data chunk
                        chunk := mload(add(data, add(i, 32)))
                    }
                    // XOR the chunk with hash
                    chunk ^= hash;
                    // solhint-disable-next-line no-inline-assembly
                    assembly {
                        // Write 32-byte encrypted chunk
                        mstore(add(result, add(i, 32)), chunk)
                    }
                }
            }
            /**
             *  @notice         Returns whether the relvant batch of NFTs is subject to a delayed reveal.
             *  @dev            Returns `true` if `_batchId`'s base URI is encrypted.
             *  @param _batchId ID of a batch of NFTs.
             */
            function isEncryptedBatch(uint256 _batchId) public view returns (bool) {
                return encryptedData[_batchId].length > 0;
            }
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        import "./interface/IDrop.sol";
        import "../lib/MerkleProof.sol";
        abstract contract Drop is IDrop {
            /*///////////////////////////////////////////////////////////////
                                    State variables
            //////////////////////////////////////////////////////////////*/
            /// @dev The active conditions for claiming tokens.
            ClaimConditionList public claimCondition;
            /*///////////////////////////////////////////////////////////////
                                    Drop logic
            //////////////////////////////////////////////////////////////*/
            /// @dev Lets an account claim tokens.
            function claim(
                address _receiver,
                uint256 _quantity,
                address _currency,
                uint256 _pricePerToken,
                AllowlistProof calldata _allowlistProof,
                bytes memory _data
            ) public payable virtual override {
                _beforeClaim(_receiver, _quantity, _currency, _pricePerToken, _allowlistProof, _data);
                uint256 activeConditionId = getActiveClaimConditionId();
                verifyClaim(activeConditionId, _dropMsgSender(), _quantity, _currency, _pricePerToken, _allowlistProof);
                // Update contract state.
                claimCondition.conditions[activeConditionId].supplyClaimed += _quantity;
                claimCondition.supplyClaimedByWallet[activeConditionId][_dropMsgSender()] += _quantity;
                // If there's a price, collect price.
                _collectPriceOnClaim(address(0), _quantity, _currency, _pricePerToken);
                // Mint the relevant tokens to claimer.
                uint256 startTokenId = _transferTokensOnClaim(_receiver, _quantity);
                emit TokensClaimed(activeConditionId, _dropMsgSender(), _receiver, startTokenId, _quantity);
                _afterClaim(_receiver, _quantity, _currency, _pricePerToken, _allowlistProof, _data);
            }
            /// @dev Lets a contract admin set claim conditions.
            function setClaimConditions(ClaimCondition[] calldata _conditions, bool _resetClaimEligibility)
                external
                virtual
                override
            {
                if (!_canSetClaimConditions()) {
                    revert("Not authorized");
                }
                uint256 existingStartIndex = claimCondition.currentStartId;
                uint256 existingPhaseCount = claimCondition.count;
                /**
                 *  The mapping `supplyClaimedByWallet` uses a claim condition's UID as a key.
                 *
                 *  If `_resetClaimEligibility == true`, we assign completely new UIDs to the claim
                 *  conditions in `_conditions`, effectively resetting the restrictions on claims expressed
                 *  by `supplyClaimedByWallet`.
                 */
                uint256 newStartIndex = existingStartIndex;
                if (_resetClaimEligibility) {
                    newStartIndex = existingStartIndex + existingPhaseCount;
                }
                claimCondition.count = _conditions.length;
                claimCondition.currentStartId = newStartIndex;
                uint256 lastConditionStartTimestamp;
                for (uint256 i = 0; i < _conditions.length; i++) {
                    require(i == 0 || lastConditionStartTimestamp < _conditions[i].startTimestamp, "ST");
                    uint256 supplyClaimedAlready = claimCondition.conditions[newStartIndex + i].supplyClaimed;
                    if (supplyClaimedAlready > _conditions[i].maxClaimableSupply) {
                        revert("max supply claimed");
                    }
                    claimCondition.conditions[newStartIndex + i] = _conditions[i];
                    claimCondition.conditions[newStartIndex + i].supplyClaimed = supplyClaimedAlready;
                    lastConditionStartTimestamp = _conditions[i].startTimestamp;
                }
                /**
                 *  Gas refunds (as much as possible)
                 *
                 *  If `_resetClaimEligibility == true`, we assign completely new UIDs to the claim
                 *  conditions in `_conditions`. So, we delete claim conditions with UID < `newStartIndex`.
                 *
                 *  If `_resetClaimEligibility == false`, and there are more existing claim conditions
                 *  than in `_conditions`, we delete the existing claim conditions that don't get replaced
                 *  by the conditions in `_conditions`.
                 */
                if (_resetClaimEligibility) {
                    for (uint256 i = existingStartIndex; i < newStartIndex; i++) {
                        delete claimCondition.conditions[i];
                    }
                } else {
                    if (existingPhaseCount > _conditions.length) {
                        for (uint256 i = _conditions.length; i < existingPhaseCount; i++) {
                            delete claimCondition.conditions[newStartIndex + i];
                        }
                    }
                }
                emit ClaimConditionsUpdated(_conditions, _resetClaimEligibility);
            }
            /// @dev Checks a request to claim NFTs against the active claim condition's criteria.
            function verifyClaim(
                uint256 _conditionId,
                address _claimer,
                uint256 _quantity,
                address _currency,
                uint256 _pricePerToken,
                AllowlistProof calldata _allowlistProof
            ) public view returns (bool isOverride) {
                ClaimCondition memory currentClaimPhase = claimCondition.conditions[_conditionId];
                uint256 claimLimit = currentClaimPhase.quantityLimitPerWallet;
                uint256 claimPrice = currentClaimPhase.pricePerToken;
                address claimCurrency = currentClaimPhase.currency;
                if (currentClaimPhase.merkleRoot != bytes32(0)) {
                    (isOverride, ) = MerkleProof.verify(
                        _allowlistProof.proof,
                        currentClaimPhase.merkleRoot,
                        keccak256(
                            abi.encodePacked(
                                _claimer,
                                _allowlistProof.quantityLimitPerWallet,
                                _allowlistProof.pricePerToken,
                                _allowlistProof.currency
                            )
                        )
                    );
                }
                if (isOverride) {
                    claimLimit = _allowlistProof.quantityLimitPerWallet != 0
                        ? _allowlistProof.quantityLimitPerWallet
                        : claimLimit;
                    claimPrice = _allowlistProof.pricePerToken != type(uint256).max
                        ? _allowlistProof.pricePerToken
                        : claimPrice;
                    claimCurrency = _allowlistProof.pricePerToken != type(uint256).max && _allowlistProof.currency != address(0)
                        ? _allowlistProof.currency
                        : claimCurrency;
                }
                uint256 supplyClaimedByWallet = claimCondition.supplyClaimedByWallet[_conditionId][_claimer];
                if (_currency != claimCurrency || _pricePerToken != claimPrice) {
                    revert("!PriceOrCurrency");
                }
                if (_quantity == 0 || (_quantity + supplyClaimedByWallet > claimLimit)) {
                    revert("!Qty");
                }
                if (currentClaimPhase.supplyClaimed + _quantity > currentClaimPhase.maxClaimableSupply) {
                    revert("!MaxSupply");
                }
                if (currentClaimPhase.startTimestamp > block.timestamp) {
                    revert("cant claim yet");
                }
            }
            /// @dev At any given moment, returns the uid for the active claim condition.
            function getActiveClaimConditionId() public view returns (uint256) {
                for (uint256 i = claimCondition.currentStartId + claimCondition.count; i > claimCondition.currentStartId; i--) {
                    if (block.timestamp >= claimCondition.conditions[i - 1].startTimestamp) {
                        return i - 1;
                    }
                }
                revert("!CONDITION.");
            }
            /// @dev Returns the claim condition at the given uid.
            function getClaimConditionById(uint256 _conditionId) external view returns (ClaimCondition memory condition) {
                condition = claimCondition.conditions[_conditionId];
            }
            /// @dev Returns the supply claimed by claimer for a given conditionId.
            function getSupplyClaimedByWallet(uint256 _conditionId, address _claimer)
                public
                view
                returns (uint256 supplyClaimedByWallet)
            {
                supplyClaimedByWallet = claimCondition.supplyClaimedByWallet[_conditionId][_claimer];
            }
            /*////////////////////////////////////////////////////////////////////
                Optional hooks that can be implemented in the derived contract
            ///////////////////////////////////////////////////////////////////*/
            /// @dev Exposes the ability to override the msg sender.
            function _dropMsgSender() internal virtual returns (address) {
                return msg.sender;
            }
            /// @dev Runs before every `claim` function call.
            function _beforeClaim(
                address _receiver,
                uint256 _quantity,
                address _currency,
                uint256 _pricePerToken,
                AllowlistProof calldata _allowlistProof,
                bytes memory _data
            ) internal virtual {}
            /// @dev Runs after every `claim` function call.
            function _afterClaim(
                address _receiver,
                uint256 _quantity,
                address _currency,
                uint256 _pricePerToken,
                AllowlistProof calldata _allowlistProof,
                bytes memory _data
            ) internal virtual {}
            /*///////////////////////////////////////////////////////////////
                Virtual functions: to be implemented in derived contract
            //////////////////////////////////////////////////////////////*/
            /// @dev Collects and distributes the primary sale value of NFTs being claimed.
            function _collectPriceOnClaim(
                address _primarySaleRecipient,
                uint256 _quantityToClaim,
                address _currency,
                uint256 _pricePerToken
            ) internal virtual;
            /// @dev Transfers the NFTs being claimed.
            function _transferTokensOnClaim(address _to, uint256 _quantityBeingClaimed)
                internal
                virtual
                returns (uint256 startTokenId);
            /// @dev Determine what wallet can update claim conditions
            function _canSetClaimConditions() internal view virtual returns (bool);
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        import "./interface/ILazyMint.sol";
        import "./BatchMintMetadata.sol";
        /**
         *  The `LazyMint` is a contract extension for any base NFT contract. It lets you 'lazy mint' any number of NFTs
         *  at once. Here, 'lazy mint' means defining the metadata for particular tokenIds of your NFT contract, without actually
         *  minting a non-zero balance of NFTs of those tokenIds.
         */
        abstract contract LazyMint is ILazyMint, BatchMintMetadata {
            /// @notice The tokenId assigned to the next new NFT to be lazy minted.
            uint256 internal nextTokenIdToLazyMint;
            /**
             *  @notice                  Lets an authorized address lazy mint a given amount of NFTs.
             *
             *  @param _amount           The number of NFTs to lazy mint.
             *  @param _baseURIForTokens The base URI for the 'n' number of NFTs being lazy minted, where the metadata for each
             *                           of those NFTs is `${baseURIForTokens}/${tokenId}`.
             *  @param _data             Additional bytes data to be used at the discretion of the consumer of the contract.
             *  @return batchId          A unique integer identifier for the batch of NFTs lazy minted together.
             */
            function lazyMint(
                uint256 _amount,
                string calldata _baseURIForTokens,
                bytes calldata _data
            ) public virtual override returns (uint256 batchId) {
                if (!_canLazyMint()) {
                    revert("Not authorized");
                }
                if (_amount == 0) {
                    revert("0 amt");
                }
                uint256 startId = nextTokenIdToLazyMint;
                (nextTokenIdToLazyMint, batchId) = _batchMintMetadata(startId, _amount, _baseURIForTokens);
                emit TokensLazyMinted(startId, startId + _amount - 1, _baseURIForTokens, _data);
                return batchId;
            }
            /// @dev Returns whether lazy minting can be performed in the given execution context.
            function _canLazyMint() internal view virtual returns (bool);
        }
        // SPDX-License-Identifier: Apache 2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        import "./interface/IOperatorFilterToggle.sol";
        abstract contract OperatorFilterToggle is IOperatorFilterToggle {
            bool public operatorRestriction;
            function setOperatorRestriction(bool _restriction) external {
                require(_canSetOperatorRestriction(), "Not authorized to set operator restriction.");
                _setOperatorRestriction(_restriction);
            }
            function _setOperatorRestriction(bool _restriction) internal {
                operatorRestriction = _restriction;
                emit OperatorRestriction(_restriction);
            }
            function _canSetOperatorRestriction() internal virtual returns (bool);
        }
        // SPDX-License-Identifier: Apache 2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        import "./interface/IOperatorFilterRegistry.sol";
        import "./OperatorFilterToggle.sol";
        abstract contract OperatorFiltererUpgradeable is OperatorFilterToggle {
            error OperatorNotAllowed(address operator);
            IOperatorFilterRegistry constant OPERATOR_FILTER_REGISTRY =
                IOperatorFilterRegistry(0x000000000000AAeB6D7670E522A718067333cd4E);
            function __OperatorFilterer_init(address subscriptionOrRegistrantToCopy, bool subscribe) internal {
                // If an inheriting token contract is deployed to a network without the registry deployed, the modifier
                // will not revert, but the contract will need to be registered with the registry once it is deployed in
                // order for the modifier to filter addresses.
                _register(subscriptionOrRegistrantToCopy, subscribe);
            }
            modifier onlyAllowedOperator(address from) virtual {
                // Check registry code length to facilitate testing in environments without a deployed registry.
                if (operatorRestriction) {
                    if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {
                        // Allow spending tokens from addresses with balance
                        // Note that this still allows listings and marketplaces with escrow to transfer tokens if transferred
                        // from an EOA.
                        if (from == msg.sender) {
                            _;
                            return;
                        }
                        if (!OPERATOR_FILTER_REGISTRY.isOperatorAllowed(address(this), msg.sender)) {
                            revert OperatorNotAllowed(msg.sender);
                        }
                    }
                }
                _;
            }
            modifier onlyAllowedOperatorApproval(address operator) virtual {
                // Check registry code length to facilitate testing in environments without a deployed registry.
                if (operatorRestriction) {
                    if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {
                        if (!OPERATOR_FILTER_REGISTRY.isOperatorAllowed(address(this), operator)) {
                            revert OperatorNotAllowed(operator);
                        }
                    }
                }
                _;
            }
            function _register(address subscriptionOrRegistrantToCopy, bool subscribe) internal {
                // Is the registry deployed?
                if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {
                    // Is the subscription contract deployed?
                    if (address(subscriptionOrRegistrantToCopy).code.length > 0) {
                        // Do we want to subscribe?
                        if (subscribe) {
                            OPERATOR_FILTER_REGISTRY.registerAndSubscribe(address(this), subscriptionOrRegistrantToCopy);
                        } else {
                            OPERATOR_FILTER_REGISTRY.registerAndCopyEntries(address(this), subscriptionOrRegistrantToCopy);
                        }
                    } else {
                        OPERATOR_FILTER_REGISTRY.register(address(this));
                    }
                }
            }
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        import "./interface/IOwnable.sol";
        /**
         *  @title   Ownable
         *  @notice  Thirdweb's `Ownable` is a contract extension to be used with any base contract. It exposes functions for setting and reading
         *           who the 'owner' of the inheriting smart contract is, and lets the inheriting contract perform conditional logic that uses
         *           information about who the contract's owner is.
         */
        abstract contract Ownable is IOwnable {
            /// @dev Owner of the contract (purpose: OpenSea compatibility)
            address private _owner;
            /// @dev Reverts if caller is not the owner.
            modifier onlyOwner() {
                if (msg.sender != _owner) {
                    revert("Not authorized");
                }
                _;
            }
            /**
             *  @notice Returns the owner of the contract.
             */
            function owner() public view override returns (address) {
                return _owner;
            }
            /**
             *  @notice Lets an authorized wallet set a new owner for the contract.
             *  @param _newOwner The address to set as the new owner of the contract.
             */
            function setOwner(address _newOwner) external override {
                if (!_canSetOwner()) {
                    revert("Not authorized");
                }
                _setupOwner(_newOwner);
            }
            /// @dev Lets a contract admin set a new owner for the contract. The new owner must be a contract admin.
            function _setupOwner(address _newOwner) internal {
                address _prevOwner = _owner;
                _owner = _newOwner;
                emit OwnerUpdated(_prevOwner, _newOwner);
            }
            /// @dev Returns whether owner can be set in the given execution context.
            function _canSetOwner() internal view virtual returns (bool);
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        import "./interface/IPermissions.sol";
        import "../lib/TWStrings.sol";
        /**
         *  @title   Permissions
         *  @dev     This contracts provides extending-contracts with role-based access control mechanisms
         */
        contract Permissions is IPermissions {
            /// @dev Map from keccak256 hash of a role => a map from address => whether address has role.
            mapping(bytes32 => mapping(address => bool)) private _hasRole;
            /// @dev Map from keccak256 hash of a role to role admin. See {getRoleAdmin}.
            mapping(bytes32 => bytes32) private _getRoleAdmin;
            /// @dev Default admin role for all roles. Only accounts with this role can grant/revoke other roles.
            bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;
            /// @dev Modifier that checks if an account has the specified role; reverts otherwise.
            modifier onlyRole(bytes32 role) {
                _checkRole(role, msg.sender);
                _;
            }
            /**
             *  @notice         Checks whether an account has a particular role.
             *  @dev            Returns `true` if `account` has been granted `role`.
             *
             *  @param role     keccak256 hash of the role. e.g. keccak256("TRANSFER_ROLE")
             *  @param account  Address of the account for which the role is being checked.
             */
            function hasRole(bytes32 role, address account) public view override returns (bool) {
                return _hasRole[role][account];
            }
            /**
             *  @notice         Checks whether an account has a particular role;
             *                  role restrictions can be swtiched on and off.
             *
             *  @dev            Returns `true` if `account` has been granted `role`.
             *                  Role restrictions can be swtiched on and off:
             *                      - If address(0) has ROLE, then the ROLE restrictions
             *                        don't apply.
             *                      - If address(0) does not have ROLE, then the ROLE
             *                        restrictions will apply.
             *
             *  @param role     keccak256 hash of the role. e.g. keccak256("TRANSFER_ROLE")
             *  @param account  Address of the account for which the role is being checked.
             */
            function hasRoleWithSwitch(bytes32 role, address account) public view returns (bool) {
                if (!_hasRole[role][address(0)]) {
                    return _hasRole[role][account];
                }
                return true;
            }
            /**
             *  @notice         Returns the admin role that controls the specified role.
             *  @dev            See {grantRole} and {revokeRole}.
             *                  To change a role's admin, use {_setRoleAdmin}.
             *
             *  @param role     keccak256 hash of the role. e.g. keccak256("TRANSFER_ROLE")
             */
            function getRoleAdmin(bytes32 role) external view override returns (bytes32) {
                return _getRoleAdmin[role];
            }
            /**
             *  @notice         Grants a role to an account, if not previously granted.
             *  @dev            Caller must have admin role for the `role`.
             *                  Emits {RoleGranted Event}.
             *
             *  @param role     keccak256 hash of the role. e.g. keccak256("TRANSFER_ROLE")
             *  @param account  Address of the account to which the role is being granted.
             */
            function grantRole(bytes32 role, address account) public virtual override {
                _checkRole(_getRoleAdmin[role], msg.sender);
                if (_hasRole[role][account]) {
                    revert("Can only grant to non holders");
                }
                _setupRole(role, account);
            }
            /**
             *  @notice         Revokes role from an account.
             *  @dev            Caller must have admin role for the `role`.
             *                  Emits {RoleRevoked Event}.
             *
             *  @param role     keccak256 hash of the role. e.g. keccak256("TRANSFER_ROLE")
             *  @param account  Address of the account from which the role is being revoked.
             */
            function revokeRole(bytes32 role, address account) public virtual override {
                _checkRole(_getRoleAdmin[role], msg.sender);
                _revokeRole(role, account);
            }
            /**
             *  @notice         Revokes role from the account.
             *  @dev            Caller must have the `role`, with caller being the same as `account`.
             *                  Emits {RoleRevoked Event}.
             *
             *  @param role     keccak256 hash of the role. e.g. keccak256("TRANSFER_ROLE")
             *  @param account  Address of the account from which the role is being revoked.
             */
            function renounceRole(bytes32 role, address account) public virtual override {
                if (msg.sender != account) {
                    revert("Can only renounce for self");
                }
                _revokeRole(role, account);
            }
            /// @dev Sets `adminRole` as `role`'s admin role.
            function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
                bytes32 previousAdminRole = _getRoleAdmin[role];
                _getRoleAdmin[role] = adminRole;
                emit RoleAdminChanged(role, previousAdminRole, adminRole);
            }
            /// @dev Sets up `role` for `account`
            function _setupRole(bytes32 role, address account) internal virtual {
                _hasRole[role][account] = true;
                emit RoleGranted(role, account, msg.sender);
            }
            /// @dev Revokes `role` from `account`
            function _revokeRole(bytes32 role, address account) internal virtual {
                _checkRole(role, account);
                delete _hasRole[role][account];
                emit RoleRevoked(role, account, msg.sender);
            }
            /// @dev Checks `role` for `account`. Reverts with a message including the required role.
            function _checkRole(bytes32 role, address account) internal view virtual {
                if (!_hasRole[role][account]) {
                    revert(
                        string(
                            abi.encodePacked(
                                "Permissions: account ",
                                TWStrings.toHexString(uint160(account), 20),
                                " is missing role ",
                                TWStrings.toHexString(uint256(role), 32)
                            )
                        )
                    );
                }
            }
            /// @dev Checks `role` for `account`. Reverts with a message including the required role.
            function _checkRoleWithSwitch(bytes32 role, address account) internal view virtual {
                if (!hasRoleWithSwitch(role, account)) {
                    revert(
                        string(
                            abi.encodePacked(
                                "Permissions: account ",
                                TWStrings.toHexString(uint160(account), 20),
                                " is missing role ",
                                TWStrings.toHexString(uint256(role), 32)
                            )
                        )
                    );
                }
            }
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        import "./interface/IPermissionsEnumerable.sol";
        import "./Permissions.sol";
        /**
         *  @title   PermissionsEnumerable
         *  @dev     This contracts provides extending-contracts with role-based access control mechanisms.
         *           Also provides interfaces to view all members with a given role, and total count of members.
         */
        contract PermissionsEnumerable is IPermissionsEnumerable, Permissions {
            /**
             *  @notice A data structure to store data of members for a given role.
             *
             *  @param index    Current index in the list of accounts that have a role.
             *  @param members  map from index => address of account that has a role
             *  @param indexOf  map from address => index which the account has.
             */
            struct RoleMembers {
                uint256 index;
                mapping(uint256 => address) members;
                mapping(address => uint256) indexOf;
            }
            /// @dev map from keccak256 hash of a role to its members' data. See {RoleMembers}.
            mapping(bytes32 => RoleMembers) private roleMembers;
            /**
             *  @notice         Returns the role-member from a list of members for a role,
             *                  at a given index.
             *  @dev            Returns `member` who has `role`, at `index` of role-members list.
             *                  See struct {RoleMembers}, and mapping {roleMembers}
             *
             *  @param role     keccak256 hash of the role. e.g. keccak256("TRANSFER_ROLE")
             *  @param index    Index in list of current members for the role.
             *
             *  @return member  Address of account that has `role`
             */
            function getRoleMember(bytes32 role, uint256 index) external view override returns (address member) {
                uint256 currentIndex = roleMembers[role].index;
                uint256 check;
                for (uint256 i = 0; i < currentIndex; i += 1) {
                    if (roleMembers[role].members[i] != address(0)) {
                        if (check == index) {
                            member = roleMembers[role].members[i];
                            return member;
                        }
                        check += 1;
                    } else if (hasRole(role, address(0)) && i == roleMembers[role].indexOf[address(0)]) {
                        check += 1;
                    }
                }
            }
            /**
             *  @notice         Returns total number of accounts that have a role.
             *  @dev            Returns `count` of accounts that have `role`.
             *                  See struct {RoleMembers}, and mapping {roleMembers}
             *
             *  @param role     keccak256 hash of the role. e.g. keccak256("TRANSFER_ROLE")
             *
             *  @return count   Total number of accounts that have `role`
             */
            function getRoleMemberCount(bytes32 role) external view override returns (uint256 count) {
                uint256 currentIndex = roleMembers[role].index;
                for (uint256 i = 0; i < currentIndex; i += 1) {
                    if (roleMembers[role].members[i] != address(0)) {
                        count += 1;
                    }
                }
                if (hasRole(role, address(0))) {
                    count += 1;
                }
            }
            /// @dev Revokes `role` from `account`, and removes `account` from {roleMembers}
            ///      See {_removeMember}
            function _revokeRole(bytes32 role, address account) internal override {
                super._revokeRole(role, account);
                _removeMember(role, account);
            }
            /// @dev Grants `role` to `account`, and adds `account` to {roleMembers}
            ///      See {_addMember}
            function _setupRole(bytes32 role, address account) internal override {
                super._setupRole(role, account);
                _addMember(role, account);
            }
            /// @dev adds `account` to {roleMembers}, for `role`
            function _addMember(bytes32 role, address account) internal {
                uint256 idx = roleMembers[role].index;
                roleMembers[role].index += 1;
                roleMembers[role].members[idx] = account;
                roleMembers[role].indexOf[account] = idx;
            }
            /// @dev removes `account` from {roleMembers}, for `role`
            function _removeMember(bytes32 role, address account) internal {
                uint256 idx = roleMembers[role].indexOf[account];
                delete roleMembers[role].members[idx];
                delete roleMembers[role].indexOf[account];
            }
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        import "./interface/IPlatformFee.sol";
        /**
         *  @title   Platform Fee
         *  @notice  Thirdweb's `PlatformFee` is a contract extension to be used with any base contract. It exposes functions for setting and reading
         *           the recipient of platform fee and the platform fee basis points, and lets the inheriting contract perform conditional logic
         *           that uses information about platform fees, if desired.
         */
        abstract contract PlatformFee is IPlatformFee {
            /// @dev The address that receives all platform fees from all sales.
            address private platformFeeRecipient;
            /// @dev The % of primary sales collected as platform fees.
            uint16 private platformFeeBps;
            /// @dev Returns the platform fee recipient and bps.
            function getPlatformFeeInfo() public view override returns (address, uint16) {
                return (platformFeeRecipient, uint16(platformFeeBps));
            }
            /**
             *  @notice         Updates the platform fee recipient and bps.
             *  @dev            Caller should be authorized to set platform fee info.
             *                  See {_canSetPlatformFeeInfo}.
             *                  Emits {PlatformFeeInfoUpdated Event}; See {_setupPlatformFeeInfo}.
             *
             *  @param _platformFeeRecipient   Address to be set as new platformFeeRecipient.
             *  @param _platformFeeBps         Updated platformFeeBps.
             */
            function setPlatformFeeInfo(address _platformFeeRecipient, uint256 _platformFeeBps) external override {
                if (!_canSetPlatformFeeInfo()) {
                    revert("Not authorized");
                }
                _setupPlatformFeeInfo(_platformFeeRecipient, _platformFeeBps);
            }
            /// @dev Lets a contract admin update the platform fee recipient and bps
            function _setupPlatformFeeInfo(address _platformFeeRecipient, uint256 _platformFeeBps) internal {
                if (_platformFeeBps > 10_000) {
                    revert("Exceeds max bps");
                }
                platformFeeBps = uint16(_platformFeeBps);
                platformFeeRecipient = _platformFeeRecipient;
                emit PlatformFeeInfoUpdated(_platformFeeRecipient, _platformFeeBps);
            }
            /// @dev Returns whether platform fee info can be set in the given execution context.
            function _canSetPlatformFeeInfo() internal view virtual returns (bool);
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        import "./interface/IPrimarySale.sol";
        /**
         *  @title   Primary Sale
         *  @notice  Thirdweb's `PrimarySale` is a contract extension to be used with any base contract. It exposes functions for setting and reading
         *           the recipient of primary sales, and lets the inheriting contract perform conditional logic that uses information about
         *           primary sales, if desired.
         */
        abstract contract PrimarySale is IPrimarySale {
            /// @dev The address that receives all primary sales value.
            address private recipient;
            /// @dev Returns primary sale recipient address.
            function primarySaleRecipient() public view override returns (address) {
                return recipient;
            }
            /**
             *  @notice         Updates primary sale recipient.
             *  @dev            Caller should be authorized to set primary sales info.
             *                  See {_canSetPrimarySaleRecipient}.
             *                  Emits {PrimarySaleRecipientUpdated Event}; See {_setupPrimarySaleRecipient}.
             *
             *  @param _saleRecipient   Address to be set as new recipient of primary sales.
             */
            function setPrimarySaleRecipient(address _saleRecipient) external override {
                if (!_canSetPrimarySaleRecipient()) {
                    revert("Not authorized");
                }
                _setupPrimarySaleRecipient(_saleRecipient);
            }
            /// @dev Lets a contract admin set the recipient for all primary sales.
            function _setupPrimarySaleRecipient(address _saleRecipient) internal {
                recipient = _saleRecipient;
                emit PrimarySaleRecipientUpdated(_saleRecipient);
            }
            /// @dev Returns whether primary sale recipient can be set in the given execution context.
            function _canSetPrimarySaleRecipient() internal view virtual returns (bool);
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        import "./interface/IRoyalty.sol";
        /**
         *  @title   Royalty
         *  @notice  Thirdweb's `Royalty` is a contract extension to be used with any base contract. It exposes functions for setting and reading
         *           the recipient of royalty fee and the royalty fee basis points, and lets the inheriting contract perform conditional logic
         *           that uses information about royalty fees, if desired.
         *
         *  @dev     The `Royalty` contract is ERC2981 compliant.
         */
        abstract contract Royalty is IRoyalty {
            /// @dev The (default) address that receives all royalty value.
            address private royaltyRecipient;
            /// @dev The (default) % of a sale to take as royalty (in basis points).
            uint16 private royaltyBps;
            /// @dev Token ID => royalty recipient and bps for token
            mapping(uint256 => RoyaltyInfo) private royaltyInfoForToken;
            /**
             *  @notice   View royalty info for a given token and sale price.
             *  @dev      Returns royalty amount and recipient for `tokenId` and `salePrice`.
             *  @param tokenId          The tokenID of the NFT for which to query royalty info.
             *  @param salePrice        Sale price of the token.
             *
             *  @return receiver        Address of royalty recipient account.
             *  @return royaltyAmount   Royalty amount calculated at current royaltyBps value.
             */
            function royaltyInfo(uint256 tokenId, uint256 salePrice)
                external
                view
                virtual
                override
                returns (address receiver, uint256 royaltyAmount)
            {
                (address recipient, uint256 bps) = getRoyaltyInfoForToken(tokenId);
                receiver = recipient;
                royaltyAmount = (salePrice * bps) / 10_000;
            }
            /**
             *  @notice          View royalty info for a given token.
             *  @dev             Returns royalty recipient and bps for `_tokenId`.
             *  @param _tokenId  The tokenID of the NFT for which to query royalty info.
             */
            function getRoyaltyInfoForToken(uint256 _tokenId) public view override returns (address, uint16) {
                RoyaltyInfo memory royaltyForToken = royaltyInfoForToken[_tokenId];
                return
                    royaltyForToken.recipient == address(0)
                        ? (royaltyRecipient, uint16(royaltyBps))
                        : (royaltyForToken.recipient, uint16(royaltyForToken.bps));
            }
            /**
             *  @notice Returns the defualt royalty recipient and BPS for this contract's NFTs.
             */
            function getDefaultRoyaltyInfo() external view override returns (address, uint16) {
                return (royaltyRecipient, uint16(royaltyBps));
            }
            /**
             *  @notice         Updates default royalty recipient and bps.
             *  @dev            Caller should be authorized to set royalty info.
             *                  See {_canSetRoyaltyInfo}.
             *                  Emits {DefaultRoyalty Event}; See {_setupDefaultRoyaltyInfo}.
             *
             *  @param _royaltyRecipient   Address to be set as default royalty recipient.
             *  @param _royaltyBps         Updated royalty bps.
             */
            function setDefaultRoyaltyInfo(address _royaltyRecipient, uint256 _royaltyBps) external override {
                if (!_canSetRoyaltyInfo()) {
                    revert("Not authorized");
                }
                _setupDefaultRoyaltyInfo(_royaltyRecipient, _royaltyBps);
            }
            /// @dev Lets a contract admin update the default royalty recipient and bps.
            function _setupDefaultRoyaltyInfo(address _royaltyRecipient, uint256 _royaltyBps) internal {
                if (_royaltyBps > 10_000) {
                    revert("Exceeds max bps");
                }
                royaltyRecipient = _royaltyRecipient;
                royaltyBps = uint16(_royaltyBps);
                emit DefaultRoyalty(_royaltyRecipient, _royaltyBps);
            }
            /**
             *  @notice         Updates default royalty recipient and bps for a particular token.
             *  @dev            Sets royalty info for `_tokenId`. Caller should be authorized to set royalty info.
             *                  See {_canSetRoyaltyInfo}.
             *                  Emits {RoyaltyForToken Event}; See {_setupRoyaltyInfoForToken}.
             *
             *  @param _recipient   Address to be set as royalty recipient for given token Id.
             *  @param _bps         Updated royalty bps for the token Id.
             */
            function setRoyaltyInfoForToken(
                uint256 _tokenId,
                address _recipient,
                uint256 _bps
            ) external override {
                if (!_canSetRoyaltyInfo()) {
                    revert("Not authorized");
                }
                _setupRoyaltyInfoForToken(_tokenId, _recipient, _bps);
            }
            /// @dev Lets a contract admin set the royalty recipient and bps for a particular token Id.
            function _setupRoyaltyInfoForToken(
                uint256 _tokenId,
                address _recipient,
                uint256 _bps
            ) internal {
                if (_bps > 10_000) {
                    revert("Exceeds max bps");
                }
                royaltyInfoForToken[_tokenId] = RoyaltyInfo({ recipient: _recipient, bps: _bps });
                emit RoyaltyForToken(_tokenId, _recipient, _bps);
            }
            /// @dev Returns whether royalty info can be set in the given execution context.
            function _canSetRoyaltyInfo() internal view virtual returns (bool);
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        /**
         *  The interface `IClaimCondition` is written for thirdweb's 'Drop' contracts, which are distribution mechanisms for tokens.
         *
         *  A claim condition defines criteria under which accounts can mint tokens. Claim conditions can be overwritten
         *  or added to by the contract admin. At any moment, there is only one active claim condition.
         */
        interface IClaimCondition {
            /**
             *  @notice The criteria that make up a claim condition.
             *
             *  @param startTimestamp                 The unix timestamp after which the claim condition applies.
             *                                        The same claim condition applies until the `startTimestamp`
             *                                        of the next claim condition.
             *
             *  @param maxClaimableSupply             The maximum total number of tokens that can be claimed under
             *                                        the claim condition.
             *
             *  @param supplyClaimed                  At any given point, the number of tokens that have been claimed
             *                                        under the claim condition.
             *
             *  @param quantityLimitPerWallet         The maximum number of tokens that can be claimed by a wallet.
             *
             *  @param merkleRoot                     The allowlist of addresses that can claim tokens under the claim
             *                                        condition.
             *
             *  @param pricePerToken                  The price required to pay per token claimed.
             *
             *  @param currency                       The currency in which the `pricePerToken` must be paid.
             *
             *  @param metadata                       Claim condition metadata.
             */
            struct ClaimCondition {
                uint256 startTimestamp;
                uint256 maxClaimableSupply;
                uint256 supplyClaimed;
                uint256 quantityLimitPerWallet;
                bytes32 merkleRoot;
                uint256 pricePerToken;
                address currency;
                string metadata;
            }
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        import "./IClaimCondition.sol";
        /**
         *  The interface `IClaimConditionMultiPhase` is written for thirdweb's 'Drop' contracts, which are distribution mechanisms for tokens.
         *
         *  An authorized wallet can set a series of claim conditions, ordered by their respective `startTimestamp`.
         *  A claim condition defines criteria under which accounts can mint tokens. Claim conditions can be overwritten
         *  or added to by the contract admin. At any moment, there is only one active claim condition.
         */
        interface IClaimConditionMultiPhase is IClaimCondition {
            /**
             *  @notice The set of all claim conditions, at any given moment.
             *  Claim Phase ID = [currentStartId, currentStartId + length - 1];
             *
             *  @param currentStartId           The uid for the first claim condition amongst the current set of
             *                                  claim conditions. The uid for each next claim condition is one
             *                                  more than the previous claim condition's uid.
             *
             *  @param count                    The total number of phases / claim conditions in the list
             *                                  of claim conditions.
             *
             *  @param conditions                   The claim conditions at a given uid. Claim conditions
             *                                  are ordered in an ascending order by their `startTimestamp`.
             *
             *  @param supplyClaimedByWallet    Map from a claim condition uid and account to supply claimed by account.
             */
            struct ClaimConditionList {
                uint256 currentStartId;
                uint256 count;
                mapping(uint256 => ClaimCondition) conditions;
                mapping(uint256 => mapping(address => uint256)) supplyClaimedByWallet;
            }
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        /**
         *  Thirdweb's `ContractMetadata` is a contract extension for any base contracts. It lets you set a metadata URI
         *  for you contract.
         *
         *  Additionally, `ContractMetadata` is necessary for NFT contracts that want royalties to get distributed on OpenSea.
         */
        interface IContractMetadata {
            /// @dev Returns the metadata URI of the contract.
            function contractURI() external view returns (string memory);
            /**
             *  @dev Sets contract URI for the storefront-level metadata of the contract.
             *       Only module admin can call this function.
             */
            function setContractURI(string calldata _uri) external;
            /// @dev Emitted when the contract URI is updated.
            event ContractURIUpdated(string prevURI, string newURI);
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        /**
         *  Thirdweb's `DelayedReveal` is a contract extension for base NFT contracts. It lets you create batches of
         *  'delayed-reveal' NFTs. You can learn more about the usage of delayed reveal NFTs here - https://blog.thirdweb.com/delayed-reveal-nfts
         */
        interface IDelayedReveal {
            /// @dev Emitted when tokens are revealed.
            event TokenURIRevealed(uint256 indexed index, string revealedURI);
            /**
             *  @notice Reveals a batch of delayed reveal NFTs.
             *
             *  @param identifier The ID for the batch of delayed-reveal NFTs to reveal.
             *
             *  @param key        The key with which the base URI for the relevant batch of NFTs was encrypted.
             */
            function reveal(uint256 identifier, bytes calldata key) external returns (string memory revealedURI);
            /**
             *  @notice Performs XOR encryption/decryption.
             *
             *  @param data The data to encrypt. In the case of delayed-reveal NFTs, this is the "revealed" state
             *              base URI of the relevant batch of NFTs.
             *
             *  @param key  The key with which to encrypt data
             */
            function encryptDecrypt(bytes memory data, bytes calldata key) external pure returns (bytes memory result);
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        import "./IClaimConditionMultiPhase.sol";
        /**
         *  The interface `IDrop` is written for thirdweb's 'Drop' contracts, which are distribution mechanisms for tokens.
         *
         *  An authorized wallet can set a series of claim conditions, ordered by their respective `startTimestamp`.
         *  A claim condition defines criteria under which accounts can mint tokens. Claim conditions can be overwritten
         *  or added to by the contract admin. At any moment, there is only one active claim condition.
         */
        interface IDrop is IClaimConditionMultiPhase {
            /**
             *  @param proof Prood of concerned wallet's inclusion in an allowlist.
             *  @param quantityLimitPerWallet The total quantity of tokens the allowlisted wallet is eligible to claim over time.
             *  @param pricePerToken The price per token the allowlisted wallet must pay to claim tokens.
             *  @param currency The currency in which the allowlisted wallet must pay the price for claiming tokens.
             */
            struct AllowlistProof {
                bytes32[] proof;
                uint256 quantityLimitPerWallet;
                uint256 pricePerToken;
                address currency;
            }
            /// @notice Emitted when tokens are claimed via `claim`.
            event TokensClaimed(
                uint256 indexed claimConditionIndex,
                address indexed claimer,
                address indexed receiver,
                uint256 startTokenId,
                uint256 quantityClaimed
            );
            /// @notice Emitted when the contract's claim conditions are updated.
            event ClaimConditionsUpdated(ClaimCondition[] claimConditions, bool resetEligibility);
            /**
             *  @notice Lets an account claim a given quantity of NFTs.
             *
             *  @param receiver                       The receiver of the NFTs to claim.
             *  @param quantity                       The quantity of NFTs to claim.
             *  @param currency                       The currency in which to pay for the claim.
             *  @param pricePerToken                  The price per token to pay for the claim.
             *  @param allowlistProof                 The proof of the claimer's inclusion in the merkle root allowlist
             *                                        of the claim conditions that apply.
             *  @param data                           Arbitrary bytes data that can be leveraged in the implementation of this interface.
             */
            function claim(
                address receiver,
                uint256 quantity,
                address currency,
                uint256 pricePerToken,
                AllowlistProof calldata allowlistProof,
                bytes memory data
            ) external payable;
            /**
             *  @notice Lets a contract admin (account with `DEFAULT_ADMIN_ROLE`) set claim conditions.
             *
             *  @param phases                   Claim conditions in ascending order by `startTimestamp`.
             *
             *  @param resetClaimEligibility    Whether to honor the restrictions applied to wallets who have claimed tokens in the current conditions,
             *                                  in the new claim conditions being set.
             *
             */
            function setClaimConditions(ClaimCondition[] calldata phases, bool resetClaimEligibility) external;
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        /**
         *  Thirdweb's `LazyMint` is a contract extension for any base NFT contract. It lets you 'lazy mint' any number of NFTs
         *  at once. Here, 'lazy mint' means defining the metadata for particular tokenIds of your NFT contract, without actually
         *  minting a non-zero balance of NFTs of those tokenIds.
         */
        interface ILazyMint {
            /// @dev Emitted when tokens are lazy minted.
            event TokensLazyMinted(uint256 indexed startTokenId, uint256 endTokenId, string baseURI, bytes encryptedBaseURI);
            /**
             *  @notice Lazy mints a given amount of NFTs.
             *
             *  @param amount           The number of NFTs to lazy mint.
             *
             *  @param baseURIForTokens The base URI for the 'n' number of NFTs being lazy minted, where the metadata for each
             *                          of those NFTs is `${baseURIForTokens}/${tokenId}`.
             *
             *  @param extraData        Additional bytes data to be used at the discretion of the consumer of the contract.
             *
             *  @return batchId         A unique integer identifier for the batch of NFTs lazy minted together.
             */
            function lazyMint(
                uint256 amount,
                string calldata baseURIForTokens,
                bytes calldata extraData
            ) external returns (uint256 batchId);
        }
        // SPDX-License-Identifier: Apache 2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        interface IOperatorFilterRegistry {
            function isOperatorAllowed(address registrant, address operator) external view returns (bool);
            function register(address registrant) external;
            function registerAndSubscribe(address registrant, address subscription) external;
            function registerAndCopyEntries(address registrant, address registrantToCopy) external;
            function unregister(address addr) external;
            function updateOperator(
                address registrant,
                address operator,
                bool filtered
            ) external;
            function updateOperators(
                address registrant,
                address[] calldata operators,
                bool filtered
            ) external;
            function updateCodeHash(
                address registrant,
                bytes32 codehash,
                bool filtered
            ) external;
            function updateCodeHashes(
                address registrant,
                bytes32[] calldata codeHashes,
                bool filtered
            ) external;
            function subscribe(address registrant, address registrantToSubscribe) external;
            function unsubscribe(address registrant, bool copyExistingEntries) external;
            function subscriptionOf(address addr) external returns (address registrant);
            function subscribers(address registrant) external returns (address[] memory);
            function subscriberAt(address registrant, uint256 index) external returns (address);
            function copyEntriesOf(address registrant, address registrantToCopy) external;
            function isOperatorFiltered(address registrant, address operator) external returns (bool);
            function isCodeHashOfFiltered(address registrant, address operatorWithCode) external returns (bool);
            function isCodeHashFiltered(address registrant, bytes32 codeHash) external returns (bool);
            function filteredOperators(address addr) external returns (address[] memory);
            function filteredCodeHashes(address addr) external returns (bytes32[] memory);
            function filteredOperatorAt(address registrant, uint256 index) external returns (address);
            function filteredCodeHashAt(address registrant, uint256 index) external returns (bytes32);
            function isRegistered(address addr) external returns (bool);
            function codeHashOf(address addr) external returns (bytes32);
        }
        // SPDX-License-Identifier: Apache 2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        interface IOperatorFilterToggle {
            event OperatorRestriction(bool restriction);
            function operatorRestriction() external view returns (bool);
            function setOperatorRestriction(bool restriction) external;
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        /**
         *  Thirdweb's `Ownable` is a contract extension to be used with any base contract. It exposes functions for setting and reading
         *  who the 'owner' of the inheriting smart contract is, and lets the inheriting contract perform conditional logic that uses
         *  information about who the contract's owner is.
         */
        interface IOwnable {
            /// @dev Returns the owner of the contract.
            function owner() external view returns (address);
            /// @dev Lets a module admin set a new owner for the contract. The new owner must be a module admin.
            function setOwner(address _newOwner) external;
            /// @dev Emitted when a new Owner is set.
            event OwnerUpdated(address indexed prevOwner, address indexed newOwner);
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        /**
         * @dev External interface of AccessControl declared to support ERC165 detection.
         */
        interface IPermissions {
            /**
             * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
             *
             * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
             * {RoleAdminChanged} not being emitted signaling this.
             *
             * _Available since v3.1._
             */
            event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);
            /**
             * @dev Emitted when `account` is granted `role`.
             *
             * `sender` is the account that originated the contract call, an admin role
             * bearer except when using {AccessControl-_setupRole}.
             */
            event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);
            /**
             * @dev Emitted when `account` is revoked `role`.
             *
             * `sender` is the account that originated the contract call:
             *   - if using `revokeRole`, it is the admin role bearer
             *   - if using `renounceRole`, it is the role bearer (i.e. `account`)
             */
            event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);
            /**
             * @dev Returns `true` if `account` has been granted `role`.
             */
            function hasRole(bytes32 role, address account) external view returns (bool);
            /**
             * @dev Returns the admin role that controls `role`. See {grantRole} and
             * {revokeRole}.
             *
             * To change a role's admin, use {AccessControl-_setRoleAdmin}.
             */
            function getRoleAdmin(bytes32 role) external view returns (bytes32);
            /**
             * @dev Grants `role` to `account`.
             *
             * If `account` had not been already granted `role`, emits a {RoleGranted}
             * event.
             *
             * Requirements:
             *
             * - the caller must have ``role``'s admin role.
             */
            function grantRole(bytes32 role, address account) external;
            /**
             * @dev Revokes `role` from `account`.
             *
             * If `account` had been granted `role`, emits a {RoleRevoked} event.
             *
             * Requirements:
             *
             * - the caller must have ``role``'s admin role.
             */
            function revokeRole(bytes32 role, address account) external;
            /**
             * @dev Revokes `role` from the calling account.
             *
             * Roles are often managed via {grantRole} and {revokeRole}: this function's
             * purpose is to provide a mechanism for accounts to lose their privileges
             * if they are compromised (such as when a trusted device is misplaced).
             *
             * If the calling account had been granted `role`, emits a {RoleRevoked}
             * event.
             *
             * Requirements:
             *
             * - the caller must be `account`.
             */
            function renounceRole(bytes32 role, address account) external;
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        import "./IPermissions.sol";
        /**
         * @dev External interface of AccessControlEnumerable declared to support ERC165 detection.
         */
        interface IPermissionsEnumerable is IPermissions {
            /**
             * @dev Returns one of the accounts that have `role`. `index` must be a
             * value between 0 and {getRoleMemberCount}, non-inclusive.
             *
             * Role bearers are not sorted in any particular way, and their ordering may
             * change at any point.
             *
             * WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure
             * you perform all queries on the same block. See the following
             * [forum post](https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296)
             * for more information.
             */
            function getRoleMember(bytes32 role, uint256 index) external view returns (address);
            /**
             * @dev Returns the number of accounts that have `role`. Can be used
             * together with {getRoleMember} to enumerate all bearers of a role.
             */
            function getRoleMemberCount(bytes32 role) external view returns (uint256);
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        /**
         *  Thirdweb's `PlatformFee` is a contract extension to be used with any base contract. It exposes functions for setting and reading
         *  the recipient of platform fee and the platform fee basis points, and lets the inheriting contract perform conditional logic
         *  that uses information about platform fees, if desired.
         */
        interface IPlatformFee {
            /// @dev Returns the platform fee bps and recipient.
            function getPlatformFeeInfo() external view returns (address, uint16);
            /// @dev Lets a module admin update the fees on primary sales.
            function setPlatformFeeInfo(address _platformFeeRecipient, uint256 _platformFeeBps) external;
            /// @dev Emitted when fee on primary sales is updated.
            event PlatformFeeInfoUpdated(address indexed platformFeeRecipient, uint256 platformFeeBps);
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        /**
         *  Thirdweb's `Primary` is a contract extension to be used with any base contract. It exposes functions for setting and reading
         *  the recipient of primary sales, and lets the inheriting contract perform conditional logic that uses information about
         *  primary sales, if desired.
         */
        interface IPrimarySale {
            /// @dev The adress that receives all primary sales value.
            function primarySaleRecipient() external view returns (address);
            /// @dev Lets a module admin set the default recipient of all primary sales.
            function setPrimarySaleRecipient(address _saleRecipient) external;
            /// @dev Emitted when a new sale recipient is set.
            event PrimarySaleRecipientUpdated(address indexed recipient);
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        import "../../eip/interface/IERC2981.sol";
        /**
         *  Thirdweb's `Royalty` is a contract extension to be used with any base contract. It exposes functions for setting and reading
         *  the recipient of royalty fee and the royalty fee basis points, and lets the inheriting contract perform conditional logic
         *  that uses information about royalty fees, if desired.
         *
         *  The `Royalty` contract is ERC2981 compliant.
         */
        interface IRoyalty is IERC2981 {
            struct RoyaltyInfo {
                address recipient;
                uint256 bps;
            }
            /// @dev Returns the royalty recipient and fee bps.
            function getDefaultRoyaltyInfo() external view returns (address, uint16);
            /// @dev Lets a module admin update the royalty bps and recipient.
            function setDefaultRoyaltyInfo(address _royaltyRecipient, uint256 _royaltyBps) external;
            /// @dev Lets a module admin set the royalty recipient for a particular token Id.
            function setRoyaltyInfoForToken(
                uint256 tokenId,
                address recipient,
                uint256 bps
            ) external;
            /// @dev Returns the royalty recipient for a particular token Id.
            function getRoyaltyInfoForToken(uint256 tokenId) external view returns (address, uint16);
            /// @dev Emitted when royalty info is updated.
            event DefaultRoyalty(address indexed newRoyaltyRecipient, uint256 newRoyaltyBps);
            /// @dev Emitted when royalty recipient for tokenId is set
            event RoyaltyForToken(uint256 indexed tokenId, address indexed royaltyRecipient, uint256 royaltyBps);
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        interface IWETH {
            function deposit() external payable;
            function withdraw(uint256 amount) external;
            function transfer(address to, uint256 value) external returns (bool);
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        // Helper interfaces
        import { IWETH } from "../interfaces/IWETH.sol";
        import "../openzeppelin-presets/token/ERC20/utils/SafeERC20.sol";
        library CurrencyTransferLib {
            using SafeERC20 for IERC20;
            /// @dev The address interpreted as native token of the chain.
            address public constant NATIVE_TOKEN = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;
            /// @dev Transfers a given amount of currency.
            function transferCurrency(
                address _currency,
                address _from,
                address _to,
                uint256 _amount
            ) internal {
                if (_amount == 0) {
                    return;
                }
                if (_currency == NATIVE_TOKEN) {
                    safeTransferNativeToken(_to, _amount);
                } else {
                    safeTransferERC20(_currency, _from, _to, _amount);
                }
            }
            /// @dev Transfers a given amount of currency. (With native token wrapping)
            function transferCurrencyWithWrapper(
                address _currency,
                address _from,
                address _to,
                uint256 _amount,
                address _nativeTokenWrapper
            ) internal {
                if (_amount == 0) {
                    return;
                }
                if (_currency == NATIVE_TOKEN) {
                    if (_from == address(this)) {
                        // withdraw from weth then transfer withdrawn native token to recipient
                        IWETH(_nativeTokenWrapper).withdraw(_amount);
                        safeTransferNativeTokenWithWrapper(_to, _amount, _nativeTokenWrapper);
                    } else if (_to == address(this)) {
                        // store native currency in weth
                        require(_amount == msg.value, "msg.value != amount");
                        IWETH(_nativeTokenWrapper).deposit{ value: _amount }();
                    } else {
                        safeTransferNativeTokenWithWrapper(_to, _amount, _nativeTokenWrapper);
                    }
                } else {
                    safeTransferERC20(_currency, _from, _to, _amount);
                }
            }
            /// @dev Transfer `amount` of ERC20 token from `from` to `to`.
            function safeTransferERC20(
                address _currency,
                address _from,
                address _to,
                uint256 _amount
            ) internal {
                if (_from == _to) {
                    return;
                }
                if (_from == address(this)) {
                    IERC20(_currency).safeTransfer(_to, _amount);
                } else {
                    IERC20(_currency).safeTransferFrom(_from, _to, _amount);
                }
            }
            /// @dev Transfers `amount` of native token to `to`.
            function safeTransferNativeToken(address to, uint256 value) internal {
                // solhint-disable avoid-low-level-calls
                // slither-disable-next-line low-level-calls
                (bool success, ) = to.call{ value: value }("");
                require(success, "native token transfer failed");
            }
            /// @dev Transfers `amount` of native token to `to`. (With native token wrapping)
            function safeTransferNativeTokenWithWrapper(
                address to,
                uint256 value,
                address _nativeTokenWrapper
            ) internal {
                // solhint-disable avoid-low-level-calls
                // slither-disable-next-line low-level-calls
                (bool success, ) = to.call{ value: value }("");
                if (!success) {
                    IWETH(_nativeTokenWrapper).deposit{ value: value }();
                    IERC20(_nativeTokenWrapper).safeTransfer(to, value);
                }
            }
        }
        // SPDX-License-Identifier: Apache 2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        /**
         * @dev These functions deal with verification of Merkle Trees proofs.
         *
         * The proofs can be generated using the JavaScript library
         * https://github.com/miguelmota/merkletreejs[merkletreejs].
         * Note: the hashing algorithm should be keccak256 and pair sorting should be enabled.
         *
         * See `test/utils/cryptography/MerkleProof.test.js` for some examples.
         *
         * Source: https://github.com/ensdomains/governance/blob/master/contracts/MerkleProof.sol
         */
        library MerkleProof {
            /**
             * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree
             * defined by `root`. For this, a `proof` must be provided, containing
             * sibling hashes on the branch from the leaf to the root of the tree. Each
             * pair of leaves and each pair of pre-images are assumed to be sorted.
             */
            function verify(
                bytes32[] memory proof,
                bytes32 root,
                bytes32 leaf
            ) internal pure returns (bool, uint256) {
                bytes32 computedHash = leaf;
                uint256 index = 0;
                for (uint256 i = 0; i < proof.length; i++) {
                    index *= 2;
                    bytes32 proofElement = proof[i];
                    if (computedHash <= proofElement) {
                        // Hash(current computed hash + current element of the proof)
                        computedHash = keccak256(abi.encodePacked(computedHash, proofElement));
                    } else {
                        // Hash(current element of the proof + current computed hash)
                        computedHash = keccak256(abi.encodePacked(proofElement, computedHash));
                        index += 1;
                    }
                }
                // Check if the computed hash (root) is equal to the provided root
                return (computedHash == root, index);
            }
        }
        // SPDX-License-Identifier: Apache 2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        /**
         * @dev Collection of functions related to the address type
         */
        library TWAddress {
            /**
             * @dev Returns true if `account` is a contract.
             *
             * [IMPORTANT]
             * ====
             * It is unsafe to assume that an address for which this function returns
             * false is an externally-owned account (EOA) and not a contract.
             *
             * Among others, `isContract` will return false for the following
             * types of addresses:
             *
             *  - an externally-owned account
             *  - a contract in construction
             *  - an address where a contract will be created
             *  - an address where a contract lived, but was destroyed
             * ====
             *
             * [IMPORTANT]
             * ====
             * You shouldn't rely on `isContract` to protect against flash loan attacks!
             *
             * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
             * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
             * constructor.
             * ====
             */
            function isContract(address account) internal view returns (bool) {
                // This method relies on extcodesize/address.code.length, which returns 0
                // for contracts in construction, since the code is only stored at the end
                // of the constructor execution.
                return account.code.length > 0;
            }
            /**
             * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
             * `recipient`, forwarding all available gas and reverting on errors.
             *
             * [EIP1884](https://eips.ethereum.org/EIPS/eip-1884) increases the gas cost
             * of certain opcodes, possibly making contracts go over the 2300 gas limit
             * imposed by `transfer`, making them unable to receive funds via
             * `transfer`. {sendValue} removes this limitation.
             *
             * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
             *
             * IMPORTANT: because control is transferred to `recipient`, care must be
             * taken to not create reentrancy vulnerabilities. Consider using
             * {ReentrancyGuard} or the
             * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
             */
            function sendValue(address payable recipient, uint256 amount) internal {
                require(address(this).balance >= amount, "Address: insufficient balance");
                (bool success, ) = recipient.call{ value: amount }("");
                require(success, "Address: unable to send value, recipient may have reverted");
            }
            /**
             * @dev Performs a Solidity function call using a low level `call`. A
             * plain `call` is an unsafe replacement for a function call: use this
             * function instead.
             *
             * If `target` reverts with a revert reason, it is bubbled up by this
             * function (like regular Solidity function calls).
             *
             * Returns the raw returned data. To convert to the expected return value,
             * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
             *
             * Requirements:
             *
             * - `target` must be a contract.
             * - calling `target` with `data` must not revert.
             *
             * _Available since v3.1._
             */
            function functionCall(address target, bytes memory data) internal returns (bytes memory) {
                return functionCall(target, data, "Address: low-level call failed");
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
             * `errorMessage` as a fallback revert reason when `target` reverts.
             *
             * _Available since v3.1._
             */
            function functionCall(
                address target,
                bytes memory data,
                string memory errorMessage
            ) internal returns (bytes memory) {
                return functionCallWithValue(target, data, 0, errorMessage);
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
             * but also transferring `value` wei to `target`.
             *
             * Requirements:
             *
             * - the calling contract must have an ETH balance of at least `value`.
             * - the called Solidity function must be `payable`.
             *
             * _Available since v3.1._
             */
            function functionCallWithValue(
                address target,
                bytes memory data,
                uint256 value
            ) internal returns (bytes memory) {
                return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
            }
            /**
             * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
             * with `errorMessage` as a fallback revert reason when `target` reverts.
             *
             * _Available since v3.1._
             */
            function functionCallWithValue(
                address target,
                bytes memory data,
                uint256 value,
                string memory errorMessage
            ) internal returns (bytes memory) {
                require(address(this).balance >= value, "Address: insufficient balance for call");
                require(isContract(target), "Address: call to non-contract");
                (bool success, bytes memory returndata) = target.call{ value: value }(data);
                return verifyCallResult(success, returndata, errorMessage);
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
             * but performing a static call.
             *
             * _Available since v3.3._
             */
            function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
                return functionStaticCall(target, data, "Address: low-level static call failed");
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
             * but performing a static call.
             *
             * _Available since v3.3._
             */
            function functionStaticCall(
                address target,
                bytes memory data,
                string memory errorMessage
            ) internal view returns (bytes memory) {
                require(isContract(target), "Address: static call to non-contract");
                (bool success, bytes memory returndata) = target.staticcall(data);
                return verifyCallResult(success, returndata, errorMessage);
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
             * but performing a delegate call.
             *
             * _Available since v3.4._
             */
            function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
                return functionDelegateCall(target, data, "Address: low-level delegate call failed");
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
             * but performing a delegate call.
             *
             * _Available since v3.4._
             */
            function functionDelegateCall(
                address target,
                bytes memory data,
                string memory errorMessage
            ) internal returns (bytes memory) {
                require(isContract(target), "Address: delegate call to non-contract");
                (bool success, bytes memory returndata) = target.delegatecall(data);
                return verifyCallResult(success, returndata, errorMessage);
            }
            /**
             * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
             * revert reason using the provided one.
             *
             * _Available since v4.3._
             */
            function verifyCallResult(
                bool success,
                bytes memory returndata,
                string memory errorMessage
            ) internal pure returns (bytes memory) {
                if (success) {
                    return returndata;
                } else {
                    // Look for revert reason and bubble it up if present
                    if (returndata.length > 0) {
                        // The easiest way to bubble the revert reason is using memory via assembly
                        assembly {
                            let returndata_size := mload(returndata)
                            revert(add(32, returndata), returndata_size)
                        }
                    } else {
                        revert(errorMessage);
                    }
                }
            }
        }
        // SPDX-License-Identifier: Apache 2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        /**
         * @dev String operations.
         */
        library TWStrings {
            bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";
            /**
             * @dev Converts a `uint256` to its ASCII `string` decimal representation.
             */
            function toString(uint256 value) internal pure returns (string memory) {
                // Inspired by OraclizeAPI's implementation - MIT licence
                // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
                if (value == 0) {
                    return "0";
                }
                uint256 temp = value;
                uint256 digits;
                while (temp != 0) {
                    digits++;
                    temp /= 10;
                }
                bytes memory buffer = new bytes(digits);
                while (value != 0) {
                    digits -= 1;
                    buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
                    value /= 10;
                }
                return string(buffer);
            }
            /**
             * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
             */
            function toHexString(uint256 value) internal pure returns (string memory) {
                if (value == 0) {
                    return "0x00";
                }
                uint256 temp = value;
                uint256 length = 0;
                while (temp != 0) {
                    length++;
                    temp >>= 8;
                }
                return toHexString(value, length);
            }
            /**
             * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
             */
            function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
                bytes memory buffer = new bytes(2 * length + 2);
                buffer[0] = "0";
                buffer[1] = "x";
                for (uint256 i = 2 * length + 1; i > 1; --i) {
                    buffer[i] = _HEX_SYMBOLS[value & 0xf];
                    value >>= 4;
                }
                require(value == 0, "Strings: hex length insufficient");
                return string(buffer);
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts v4.4.0 (metatx/ERC2771Context.sol)
        pragma solidity ^0.8.11;
        import "@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol";
        import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
        /**
         * @dev Context variant with ERC2771 support.
         */
        abstract contract ERC2771ContextUpgradeable is Initializable, ContextUpgradeable {
            mapping(address => bool) private _trustedForwarder;
            function __ERC2771Context_init(address[] memory trustedForwarder) internal onlyInitializing {
                __Context_init_unchained();
                __ERC2771Context_init_unchained(trustedForwarder);
            }
            function __ERC2771Context_init_unchained(address[] memory trustedForwarder) internal onlyInitializing {
                for (uint256 i = 0; i < trustedForwarder.length; i++) {
                    _trustedForwarder[trustedForwarder[i]] = true;
                }
            }
            function isTrustedForwarder(address forwarder) public view virtual returns (bool) {
                return _trustedForwarder[forwarder];
            }
            function _msgSender() internal view virtual override returns (address sender) {
                if (isTrustedForwarder(msg.sender)) {
                    // The assembly code is more direct than the Solidity version using `abi.decode`.
                    assembly {
                        sender := shr(96, calldataload(sub(calldatasize(), 20)))
                    }
                } else {
                    return super._msgSender();
                }
            }
            function _msgData() internal view virtual override returns (bytes calldata) {
                if (isTrustedForwarder(msg.sender)) {
                    return msg.data[:msg.data.length - 20];
                } else {
                    return super._msgData();
                }
            }
            uint256[49] private __gap;
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts v4.4.1 (token/ERC20/utils/SafeERC20.sol)
        pragma solidity ^0.8.0;
        import "../../../../eip/interface/IERC20.sol";
        import "../../../../lib/TWAddress.sol";
        /**
         * @title SafeERC20
         * @dev Wrappers around ERC20 operations that throw on failure (when the token
         * contract returns false). Tokens that return no value (and instead revert or
         * throw on failure) are also supported, non-reverting calls are assumed to be
         * successful.
         * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
         * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
         */
        library SafeERC20 {
            using TWAddress for address;
            function safeTransfer(
                IERC20 token,
                address to,
                uint256 value
            ) internal {
                _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
            }
            function safeTransferFrom(
                IERC20 token,
                address from,
                address to,
                uint256 value
            ) internal {
                _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
            }
            /**
             * @dev Deprecated. This function has issues similar to the ones found in
             * {IERC20-approve}, and its usage is discouraged.
             *
             * Whenever possible, use {safeIncreaseAllowance} and
             * {safeDecreaseAllowance} instead.
             */
            function safeApprove(
                IERC20 token,
                address spender,
                uint256 value
            ) internal {
                // safeApprove should only be called when setting an initial allowance,
                // or when resetting it to zero. To increase and decrease it, use
                // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
                require(
                    (value == 0) || (token.allowance(address(this), spender) == 0),
                    "SafeERC20: approve from non-zero to non-zero allowance"
                );
                _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
            }
            function safeIncreaseAllowance(
                IERC20 token,
                address spender,
                uint256 value
            ) internal {
                uint256 newAllowance = token.allowance(address(this), spender) + value;
                _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
            }
            function safeDecreaseAllowance(
                IERC20 token,
                address spender,
                uint256 value
            ) internal {
                unchecked {
                    uint256 oldAllowance = token.allowance(address(this), spender);
                    require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
                    uint256 newAllowance = oldAllowance - value;
                    _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
                }
            }
            /**
             * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
             * on the return value: the return value is optional (but if data is returned, it must not be false).
             * @param token The token targeted by the call.
             * @param data The call data (encoded using abi.encode or one of its variants).
             */
            function _callOptionalReturn(IERC20 token, bytes memory data) private {
                // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
                // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
                // the target address contains contract code and also asserts for success in the low-level call.
                bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
                if (returndata.length > 0) {
                    // Return data is optional
                    require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
                }
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.6.0) (interfaces/IERC2981.sol)
        pragma solidity ^0.8.0;
        import "../utils/introspection/IERC165Upgradeable.sol";
        /**
         * @dev Interface for the NFT Royalty Standard.
         *
         * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal
         * support for royalty payments across all NFT marketplaces and ecosystem participants.
         *
         * _Available since v4.5._
         */
        interface IERC2981Upgradeable is IERC165Upgradeable {
            /**
             * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of
             * exchange. The royalty amount is denominated and should be paid in that same unit of exchange.
             */
            function royaltyInfo(uint256 tokenId, uint256 salePrice)
                external
                view
                returns (address receiver, uint256 royaltyAmount);
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.7.0) (proxy/utils/Initializable.sol)
        pragma solidity ^0.8.2;
        import "../../utils/AddressUpgradeable.sol";
        /**
         * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
         * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
         * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
         * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
         *
         * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
         * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
         * case an upgrade adds a module that needs to be initialized.
         *
         * For example:
         *
         * [.hljs-theme-light.nopadding]
         * ```
         * contract MyToken is ERC20Upgradeable {
         *     function initialize() initializer public {
         *         __ERC20_init("MyToken", "MTK");
         *     }
         * }
         * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
         *     function initializeV2() reinitializer(2) public {
         *         __ERC20Permit_init("MyToken");
         *     }
         * }
         * ```
         *
         * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
         * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
         *
         * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
         * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
         *
         * [CAUTION]
         * ====
         * Avoid leaving a contract uninitialized.
         *
         * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
         * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
         * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
         *
         * [.hljs-theme-light.nopadding]
         * ```
         * /// @custom:oz-upgrades-unsafe-allow constructor
         * constructor() {
         *     _disableInitializers();
         * }
         * ```
         * ====
         */
        abstract contract Initializable {
            /**
             * @dev Indicates that the contract has been initialized.
             * @custom:oz-retyped-from bool
             */
            uint8 private _initialized;
            /**
             * @dev Indicates that the contract is in the process of being initialized.
             */
            bool private _initializing;
            /**
             * @dev Triggered when the contract has been initialized or reinitialized.
             */
            event Initialized(uint8 version);
            /**
             * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
             * `onlyInitializing` functions can be used to initialize parent contracts. Equivalent to `reinitializer(1)`.
             */
            modifier initializer() {
                bool isTopLevelCall = !_initializing;
                require(
                    (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
                    "Initializable: contract is already initialized"
                );
                _initialized = 1;
                if (isTopLevelCall) {
                    _initializing = true;
                }
                _;
                if (isTopLevelCall) {
                    _initializing = false;
                    emit Initialized(1);
                }
            }
            /**
             * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
             * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
             * used to initialize parent contracts.
             *
             * `initializer` is equivalent to `reinitializer(1)`, so a reinitializer may be used after the original
             * initialization step. This is essential to configure modules that are added through upgrades and that require
             * initialization.
             *
             * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
             * a contract, executing them in the right order is up to the developer or operator.
             */
            modifier reinitializer(uint8 version) {
                require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
                _initialized = version;
                _initializing = true;
                _;
                _initializing = false;
                emit Initialized(version);
            }
            /**
             * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
             * {initializer} and {reinitializer} modifiers, directly or indirectly.
             */
            modifier onlyInitializing() {
                require(_initializing, "Initializable: contract is not initializing");
                _;
            }
            /**
             * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
             * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
             * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
             * through proxies.
             */
            function _disableInitializers() internal virtual {
                require(!_initializing, "Initializable: contract is initializing");
                if (_initialized < type(uint8).max) {
                    _initialized = type(uint8).max;
                    emit Initialized(type(uint8).max);
                }
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)
        pragma solidity ^0.8.0;
        /**
         * @title ERC721 token receiver interface
         * @dev Interface for any contract that wants to support safeTransfers
         * from ERC721 asset contracts.
         */
        interface IERC721ReceiverUpgradeable {
            /**
             * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
             * by `operator` from `from`, this function is called.
             *
             * It must return its Solidity selector to confirm the token transfer.
             * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
             *
             * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.
             */
            function onERC721Received(
                address operator,
                address from,
                uint256 tokenId,
                bytes calldata data
            ) external returns (bytes4);
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/IERC721.sol)
        pragma solidity ^0.8.0;
        import "../../utils/introspection/IERC165Upgradeable.sol";
        /**
         * @dev Required interface of an ERC721 compliant contract.
         */
        interface IERC721Upgradeable is IERC165Upgradeable {
            /**
             * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
             */
            event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
            /**
             * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
             */
            event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
            /**
             * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
             */
            event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
            /**
             * @dev Returns the number of tokens in ``owner``'s account.
             */
            function balanceOf(address owner) external view returns (uint256 balance);
            /**
             * @dev Returns the owner of the `tokenId` token.
             *
             * Requirements:
             *
             * - `tokenId` must exist.
             */
            function ownerOf(uint256 tokenId) external view returns (address owner);
            /**
             * @dev Safely transfers `tokenId` token from `from` to `to`.
             *
             * Requirements:
             *
             * - `from` cannot be the zero address.
             * - `to` cannot be the zero address.
             * - `tokenId` token must exist and be owned by `from`.
             * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
             * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
             *
             * Emits a {Transfer} event.
             */
            function safeTransferFrom(
                address from,
                address to,
                uint256 tokenId,
                bytes calldata data
            ) external;
            /**
             * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
             * are aware of the ERC721 protocol to prevent tokens from being forever locked.
             *
             * Requirements:
             *
             * - `from` cannot be the zero address.
             * - `to` cannot be the zero address.
             * - `tokenId` token must exist and be owned by `from`.
             * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
             * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
             *
             * Emits a {Transfer} event.
             */
            function safeTransferFrom(
                address from,
                address to,
                uint256 tokenId
            ) external;
            /**
             * @dev Transfers `tokenId` token from `from` to `to`.
             *
             * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
             *
             * Requirements:
             *
             * - `from` cannot be the zero address.
             * - `to` cannot be the zero address.
             * - `tokenId` token must be owned by `from`.
             * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
             *
             * Emits a {Transfer} event.
             */
            function transferFrom(
                address from,
                address to,
                uint256 tokenId
            ) external;
            /**
             * @dev Gives permission to `to` to transfer `tokenId` token to another account.
             * The approval is cleared when the token is transferred.
             *
             * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
             *
             * Requirements:
             *
             * - The caller must own the token or be an approved operator.
             * - `tokenId` must exist.
             *
             * Emits an {Approval} event.
             */
            function approve(address to, uint256 tokenId) external;
            /**
             * @dev Approve or remove `operator` as an operator for the caller.
             * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
             *
             * Requirements:
             *
             * - The `operator` cannot be the caller.
             *
             * Emits an {ApprovalForAll} event.
             */
            function setApprovalForAll(address operator, bool _approved) external;
            /**
             * @dev Returns the account approved for `tokenId` token.
             *
             * Requirements:
             *
             * - `tokenId` must exist.
             */
            function getApproved(uint256 tokenId) external view returns (address operator);
            /**
             * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
             *
             * See {setApprovalForAll}
             */
            function isApprovedForAll(address owner, address operator) external view returns (bool);
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)
        pragma solidity ^0.8.0;
        import "../IERC721Upgradeable.sol";
        /**
         * @title ERC-721 Non-Fungible Token Standard, optional metadata extension
         * @dev See https://eips.ethereum.org/EIPS/eip-721
         */
        interface IERC721MetadataUpgradeable is IERC721Upgradeable {
            /**
             * @dev Returns the token collection name.
             */
            function name() external view returns (string memory);
            /**
             * @dev Returns the token collection symbol.
             */
            function symbol() external view returns (string memory);
            /**
             * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
             */
            function tokenURI(uint256 tokenId) external view returns (string memory);
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)
        pragma solidity ^0.8.1;
        /**
         * @dev Collection of functions related to the address type
         */
        library AddressUpgradeable {
            /**
             * @dev Returns true if `account` is a contract.
             *
             * [IMPORTANT]
             * ====
             * It is unsafe to assume that an address for which this function returns
             * false is an externally-owned account (EOA) and not a contract.
             *
             * Among others, `isContract` will return false for the following
             * types of addresses:
             *
             *  - an externally-owned account
             *  - a contract in construction
             *  - an address where a contract will be created
             *  - an address where a contract lived, but was destroyed
             * ====
             *
             * [IMPORTANT]
             * ====
             * You shouldn't rely on `isContract` to protect against flash loan attacks!
             *
             * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
             * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
             * constructor.
             * ====
             */
            function isContract(address account) internal view returns (bool) {
                // This method relies on extcodesize/address.code.length, which returns 0
                // for contracts in construction, since the code is only stored at the end
                // of the constructor execution.
                return account.code.length > 0;
            }
            /**
             * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
             * `recipient`, forwarding all available gas and reverting on errors.
             *
             * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
             * of certain opcodes, possibly making contracts go over the 2300 gas limit
             * imposed by `transfer`, making them unable to receive funds via
             * `transfer`. {sendValue} removes this limitation.
             *
             * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
             *
             * IMPORTANT: because control is transferred to `recipient`, care must be
             * taken to not create reentrancy vulnerabilities. Consider using
             * {ReentrancyGuard} or the
             * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
             */
            function sendValue(address payable recipient, uint256 amount) internal {
                require(address(this).balance >= amount, "Address: insufficient balance");
                (bool success, ) = recipient.call{value: amount}("");
                require(success, "Address: unable to send value, recipient may have reverted");
            }
            /**
             * @dev Performs a Solidity function call using a low level `call`. A
             * plain `call` is an unsafe replacement for a function call: use this
             * function instead.
             *
             * If `target` reverts with a revert reason, it is bubbled up by this
             * function (like regular Solidity function calls).
             *
             * Returns the raw returned data. To convert to the expected return value,
             * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
             *
             * Requirements:
             *
             * - `target` must be a contract.
             * - calling `target` with `data` must not revert.
             *
             * _Available since v3.1._
             */
            function functionCall(address target, bytes memory data) internal returns (bytes memory) {
                return functionCall(target, data, "Address: low-level call failed");
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
             * `errorMessage` as a fallback revert reason when `target` reverts.
             *
             * _Available since v3.1._
             */
            function functionCall(
                address target,
                bytes memory data,
                string memory errorMessage
            ) internal returns (bytes memory) {
                return functionCallWithValue(target, data, 0, errorMessage);
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
             * but also transferring `value` wei to `target`.
             *
             * Requirements:
             *
             * - the calling contract must have an ETH balance of at least `value`.
             * - the called Solidity function must be `payable`.
             *
             * _Available since v3.1._
             */
            function functionCallWithValue(
                address target,
                bytes memory data,
                uint256 value
            ) internal returns (bytes memory) {
                return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
            }
            /**
             * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
             * with `errorMessage` as a fallback revert reason when `target` reverts.
             *
             * _Available since v3.1._
             */
            function functionCallWithValue(
                address target,
                bytes memory data,
                uint256 value,
                string memory errorMessage
            ) internal returns (bytes memory) {
                require(address(this).balance >= value, "Address: insufficient balance for call");
                require(isContract(target), "Address: call to non-contract");
                (bool success, bytes memory returndata) = target.call{value: value}(data);
                return verifyCallResult(success, returndata, errorMessage);
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
             * but performing a static call.
             *
             * _Available since v3.3._
             */
            function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
                return functionStaticCall(target, data, "Address: low-level static call failed");
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
             * but performing a static call.
             *
             * _Available since v3.3._
             */
            function functionStaticCall(
                address target,
                bytes memory data,
                string memory errorMessage
            ) internal view returns (bytes memory) {
                require(isContract(target), "Address: static call to non-contract");
                (bool success, bytes memory returndata) = target.staticcall(data);
                return verifyCallResult(success, returndata, errorMessage);
            }
            /**
             * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
             * revert reason using the provided one.
             *
             * _Available since v4.3._
             */
            function verifyCallResult(
                bool success,
                bytes memory returndata,
                string memory errorMessage
            ) internal pure returns (bytes memory) {
                if (success) {
                    return returndata;
                } else {
                    // Look for revert reason and bubble it up if present
                    if (returndata.length > 0) {
                        // The easiest way to bubble the revert reason is using memory via assembly
                        /// @solidity memory-safe-assembly
                        assembly {
                            let returndata_size := mload(returndata)
                            revert(add(32, returndata), returndata_size)
                        }
                    } else {
                        revert(errorMessage);
                    }
                }
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
        pragma solidity ^0.8.0;
        import "../proxy/utils/Initializable.sol";
        /**
         * @dev Provides information about the current execution context, including the
         * sender of the transaction and its data. While these are generally available
         * via msg.sender and msg.data, they should not be accessed in such a direct
         * manner, since when dealing with meta-transactions the account sending and
         * paying for execution may not be the actual sender (as far as an application
         * is concerned).
         *
         * This contract is only required for intermediate, library-like contracts.
         */
        abstract contract ContextUpgradeable is Initializable {
            function __Context_init() internal onlyInitializing {
            }
            function __Context_init_unchained() internal onlyInitializing {
            }
            function _msgSender() internal view virtual returns (address) {
                return msg.sender;
            }
            function _msgData() internal view virtual returns (bytes calldata) {
                return msg.data;
            }
            /**
             * @dev This empty reserved space is put in place to allow future versions to add new
             * variables without shifting down storage in the inheritance chain.
             * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
             */
            uint256[50] private __gap;
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.5.0) (utils/Multicall.sol)
        pragma solidity ^0.8.0;
        import "./AddressUpgradeable.sol";
        import "../proxy/utils/Initializable.sol";
        /**
         * @dev Provides a function to batch together multiple calls in a single external call.
         *
         * _Available since v4.1._
         */
        abstract contract MulticallUpgradeable is Initializable {
            function __Multicall_init() internal onlyInitializing {
            }
            function __Multicall_init_unchained() internal onlyInitializing {
            }
            /**
             * @dev Receives and executes a batch of function calls on this contract.
             */
            function multicall(bytes[] calldata data) external virtual returns (bytes[] memory results) {
                results = new bytes[](data.length);
                for (uint256 i = 0; i < data.length; i++) {
                    results[i] = _functionDelegateCall(address(this), data[i]);
                }
                return results;
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
             * but performing a delegate call.
             *
             * _Available since v3.4._
             */
            function _functionDelegateCall(address target, bytes memory data) private returns (bytes memory) {
                require(AddressUpgradeable.isContract(target), "Address: delegate call to non-contract");
                // solhint-disable-next-line avoid-low-level-calls
                (bool success, bytes memory returndata) = target.delegatecall(data);
                return AddressUpgradeable.verifyCallResult(success, returndata, "Address: low-level delegate call failed");
            }
            /**
             * @dev This empty reserved space is put in place to allow future versions to add new
             * variables without shifting down storage in the inheritance chain.
             * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
             */
            uint256[50] private __gap;
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.7.0) (utils/Strings.sol)
        pragma solidity ^0.8.0;
        /**
         * @dev String operations.
         */
        library StringsUpgradeable {
            bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";
            uint8 private constant _ADDRESS_LENGTH = 20;
            /**
             * @dev Converts a `uint256` to its ASCII `string` decimal representation.
             */
            function toString(uint256 value) internal pure returns (string memory) {
                // Inspired by OraclizeAPI's implementation - MIT licence
                // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
                if (value == 0) {
                    return "0";
                }
                uint256 temp = value;
                uint256 digits;
                while (temp != 0) {
                    digits++;
                    temp /= 10;
                }
                bytes memory buffer = new bytes(digits);
                while (value != 0) {
                    digits -= 1;
                    buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
                    value /= 10;
                }
                return string(buffer);
            }
            /**
             * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
             */
            function toHexString(uint256 value) internal pure returns (string memory) {
                if (value == 0) {
                    return "0x00";
                }
                uint256 temp = value;
                uint256 length = 0;
                while (temp != 0) {
                    length++;
                    temp >>= 8;
                }
                return toHexString(value, length);
            }
            /**
             * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
             */
            function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
                bytes memory buffer = new bytes(2 * length + 2);
                buffer[0] = "0";
                buffer[1] = "x";
                for (uint256 i = 2 * length + 1; i > 1; --i) {
                    buffer[i] = _HEX_SYMBOLS[value & 0xf];
                    value >>= 4;
                }
                require(value == 0, "Strings: hex length insufficient");
                return string(buffer);
            }
            /**
             * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
             */
            function toHexString(address addr) internal pure returns (string memory) {
                return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)
        pragma solidity ^0.8.0;
        import "./IERC165Upgradeable.sol";
        import "../../proxy/utils/Initializable.sol";
        /**
         * @dev Implementation of the {IERC165} interface.
         *
         * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
         * for the additional interface id that will be supported. For example:
         *
         * ```solidity
         * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
         *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
         * }
         * ```
         *
         * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
         */
        abstract contract ERC165Upgradeable is Initializable, IERC165Upgradeable {
            function __ERC165_init() internal onlyInitializing {
            }
            function __ERC165_init_unchained() internal onlyInitializing {
            }
            /**
             * @dev See {IERC165-supportsInterface}.
             */
            function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
                return interfaceId == type(IERC165Upgradeable).interfaceId;
            }
            /**
             * @dev This empty reserved space is put in place to allow future versions to add new
             * variables without shifting down storage in the inheritance chain.
             * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
             */
            uint256[50] private __gap;
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
        pragma solidity ^0.8.0;
        /**
         * @dev Interface of the ERC165 standard, as defined in the
         * https://eips.ethereum.org/EIPS/eip-165[EIP].
         *
         * Implementers can declare support of contract interfaces, which can then be
         * queried by others ({ERC165Checker}).
         *
         * For an implementation, see {ERC165}.
         */
        interface IERC165Upgradeable {
            /**
             * @dev Returns true if this contract implements the interface defined by
             * `interfaceId`. See the corresponding
             * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
             * to learn more about how these ids are created.
             *
             * This function call must use less than 30 000 gas.
             */
            function supportsInterface(bytes4 interfaceId) external view returns (bool);
        }
        // SPDX-License-Identifier: MIT
        // ERC721A Contracts v3.3.0
        // Creator: Chiru Labs
        pragma solidity ^0.8.4;
        import "@openzeppelin/contracts-upgradeable/token/ERC721/IERC721Upgradeable.sol";
        import "@openzeppelin/contracts-upgradeable/token/ERC721/extensions/IERC721MetadataUpgradeable.sol";
        /**
         * @dev Interface of an ERC721A compliant contract.
         */
        interface IERC721AUpgradeable is IERC721Upgradeable, IERC721MetadataUpgradeable {
            /**
             * The caller must own the token or be an approved operator.
             */
            error ApprovalCallerNotOwnerNorApproved();
            /**
             * The token does not exist.
             */
            error ApprovalQueryForNonexistentToken();
            /**
             * The caller cannot approve to their own address.
             */
            error ApproveToCaller();
            /**
             * The caller cannot approve to the current owner.
             */
            error ApprovalToCurrentOwner();
            /**
             * Cannot query the balance for the zero address.
             */
            error BalanceQueryForZeroAddress();
            /**
             * Cannot mint to the zero address.
             */
            error MintToZeroAddress();
            /**
             * The quantity of tokens minted must be more than zero.
             */
            error MintZeroQuantity();
            /**
             * The token does not exist.
             */
            error OwnerQueryForNonexistentToken();
            /**
             * The caller must own the token or be an approved operator.
             */
            error TransferCallerNotOwnerNorApproved();
            /**
             * The token must be owned by `from`.
             */
            error TransferFromIncorrectOwner();
            /**
             * Cannot safely transfer to a contract that does not implement the ERC721Receiver interface.
             */
            error TransferToNonERC721ReceiverImplementer();
            /**
             * Cannot transfer to the zero address.
             */
            error TransferToZeroAddress();
            /**
             * The token does not exist.
             */
            error URIQueryForNonexistentToken();
            // Compiler will pack this into a single 256bit word.
            struct TokenOwnership {
                // The address of the owner.
                address addr;
                // Keeps track of the start time of ownership with minimal overhead for tokenomics.
                uint64 startTimestamp;
                // Whether the token has been burned.
                bool burned;
            }
            // Compiler will pack this into a single 256bit word.
            struct AddressData {
                // Realistically, 2**64-1 is more than enough.
                uint64 balance;
                // Keeps track of mint count with minimal overhead for tokenomics.
                uint64 numberMinted;
                // Keeps track of burn count with minimal overhead for tokenomics.
                uint64 numberBurned;
                // For miscellaneous variable(s) pertaining to the address
                // (e.g. number of whitelist mint slots used).
                // If there are multiple variables, please pack them into a uint64.
                uint64 aux;
            }
            /**
             * @dev Returns the total amount of tokens stored by the contract.
             * 
             * Burned tokens are calculated here, use `_totalMinted()` if you want to count just minted tokens.
             */
            function totalSupply() external view returns (uint256);
        }
        

        File 4 of 4: DropERC721
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.11;
        /// @author thirdweb
        //   $$\\     $$\\       $$\\                 $$\\                         $$\\
        //   $$ |    $$ |      \\__|                $$ |                        $$ |
        // $$$$$$\\   $$$$$$$\\  $$\\  $$$$$$\\   $$$$$$$ |$$\\  $$\\  $$\\  $$$$$$\\  $$$$$$$\\
        // \\_$$  _|  $$  __$$\\ $$ |$$  __$$\\ $$  __$$ |$$ | $$ | $$ |$$  __$$\\ $$  __$$\\
        //   $$ |    $$ |  $$ |$$ |$$ |  \\__|$$ /  $$ |$$ | $$ | $$ |$$$$$$$$ |$$ |  $$ |
        //   $$ |$$\\ $$ |  $$ |$$ |$$ |      $$ |  $$ |$$ | $$ | $$ |$$   ____|$$ |  $$ |
        //   \\$$$$  |$$ |  $$ |$$ |$$ |      \\$$$$$$$ |\\$$$$$\\$$$$  |\\$$$$$$$\\ $$$$$$$  |
        //    \\____/ \\__|  \\__|\\__|\\__|       \\_______| \\_____\\____/  \\_______|\\_______/
        //  ==========  External imports    ==========
        import "@openzeppelin/contracts-upgradeable/utils/MulticallUpgradeable.sol";
        import "@openzeppelin/contracts-upgradeable/utils/StringsUpgradeable.sol";
        import "@openzeppelin/contracts-upgradeable/interfaces/IERC2981Upgradeable.sol";
        import "../eip/ERC721AVirtualApproveUpgradeable.sol";
        //  ==========  Internal imports    ==========
        import "../openzeppelin-presets/metatx/ERC2771ContextUpgradeable.sol";
        import "../lib/CurrencyTransferLib.sol";
        //  ==========  Features    ==========
        import "../extension/ContractMetadata.sol";
        import "../extension/PlatformFee.sol";
        import "../extension/Royalty.sol";
        import "../extension/PrimarySale.sol";
        import "../extension/Ownable.sol";
        import "../extension/DelayedReveal.sol";
        import "../extension/LazyMint.sol";
        import "../extension/PermissionsEnumerable.sol";
        import "../extension/Drop.sol";
        // OpenSea operator filter
        import "../extension/DefaultOperatorFiltererUpgradeable.sol";
        contract DropERC721 is
            Initializable,
            ContractMetadata,
            PlatformFee,
            Royalty,
            PrimarySale,
            Ownable,
            DelayedReveal,
            LazyMint,
            PermissionsEnumerable,
            Drop,
            ERC2771ContextUpgradeable,
            MulticallUpgradeable,
            DefaultOperatorFiltererUpgradeable,
            ERC721AUpgradeable
        {
            using StringsUpgradeable for uint256;
            /*///////////////////////////////////////////////////////////////
                                    State variables
            //////////////////////////////////////////////////////////////*/
            /// @dev Only transfers to or from TRANSFER_ROLE holders are valid, when transfers are restricted.
            bytes32 private transferRole;
            /// @dev Only MINTER_ROLE holders can sign off on `MintRequest`s and lazy mint tokens.
            bytes32 private minterRole;
            /// @dev Max bps in the thirdweb system.
            uint256 private constant MAX_BPS = 10_000;
            /// @dev Global max total supply of NFTs.
            uint256 public maxTotalSupply;
            /// @dev Emitted when the global max supply of tokens is updated.
            event MaxTotalSupplyUpdated(uint256 maxTotalSupply);
            /*///////////////////////////////////////////////////////////////
                            Constructor + initializer logic
            //////////////////////////////////////////////////////////////*/
            constructor() initializer {}
            /// @dev Initiliazes the contract, like a constructor.
            function initialize(
                address _defaultAdmin,
                string memory _name,
                string memory _symbol,
                string memory _contractURI,
                address[] memory _trustedForwarders,
                address _saleRecipient,
                address _royaltyRecipient,
                uint128 _royaltyBps,
                uint128 _platformFeeBps,
                address _platformFeeRecipient
            ) external initializer {
                bytes32 _transferRole = keccak256("TRANSFER_ROLE");
                bytes32 _minterRole = keccak256("MINTER_ROLE");
                // Initialize inherited contracts, most base-like -> most derived.
                __ERC2771Context_init(_trustedForwarders);
                __ERC721A_init(_name, _symbol);
                __DefaultOperatorFilterer_init();
                _setupContractURI(_contractURI);
                _setupOwner(_defaultAdmin);
                _setOperatorRestriction(true);
                _setupRole(DEFAULT_ADMIN_ROLE, _defaultAdmin);
                _setupRole(_minterRole, _defaultAdmin);
                _setupRole(_transferRole, _defaultAdmin);
                _setupRole(_transferRole, address(0));
                _setupPlatformFeeInfo(_platformFeeRecipient, _platformFeeBps);
                _setupDefaultRoyaltyInfo(_royaltyRecipient, _royaltyBps);
                _setupPrimarySaleRecipient(_saleRecipient);
                transferRole = _transferRole;
                minterRole = _minterRole;
            }
            /*///////////////////////////////////////////////////////////////
                                ERC 165 / 721 / 2981 logic
            //////////////////////////////////////////////////////////////*/
            /// @dev Returns the URI for a given tokenId.
            function tokenURI(uint256 _tokenId) public view override returns (string memory) {
                (uint256 batchId, ) = _getBatchId(_tokenId);
                string memory batchUri = _getBaseURI(_tokenId);
                if (isEncryptedBatch(batchId)) {
                    return string(abi.encodePacked(batchUri, "0"));
                } else {
                    return string(abi.encodePacked(batchUri, _tokenId.toString()));
                }
            }
            /// @dev See ERC 165
            function supportsInterface(bytes4 interfaceId)
                public
                view
                virtual
                override(ERC721AUpgradeable, IERC165)
                returns (bool)
            {
                return super.supportsInterface(interfaceId) || type(IERC2981Upgradeable).interfaceId == interfaceId;
            }
            /*///////////////////////////////////////////////////////////////
                                Contract identifiers
            //////////////////////////////////////////////////////////////*/
            function contractType() external pure returns (bytes32) {
                return bytes32("DropERC721");
            }
            function contractVersion() external pure returns (uint8) {
                return uint8(4);
            }
            /*///////////////////////////////////////////////////////////////
                            Lazy minting + delayed-reveal logic
            //////////////////////////////////////////////////////////////*/
            /**
             *  @dev Lets an account with `MINTER_ROLE` lazy mint 'n' NFTs.
             *       The URIs for each token is the provided `_baseURIForTokens` + `{tokenId}`.
             */
            function lazyMint(
                uint256 _amount,
                string calldata _baseURIForTokens,
                bytes calldata _data
            ) public override returns (uint256 batchId) {
                if (_data.length > 0) {
                    (bytes memory encryptedURI, bytes32 provenanceHash) = abi.decode(_data, (bytes, bytes32));
                    if (encryptedURI.length != 0 && provenanceHash != "") {
                        _setEncryptedData(nextTokenIdToLazyMint + _amount, _data);
                    }
                }
                return super.lazyMint(_amount, _baseURIForTokens, _data);
            }
            /// @dev Lets an account with `MINTER_ROLE` reveal the URI for a batch of 'delayed-reveal' NFTs.
            function reveal(uint256 _index, bytes calldata _key)
                external
                onlyRole(minterRole)
                returns (string memory revealedURI)
            {
                uint256 batchId = getBatchIdAtIndex(_index);
                revealedURI = getRevealURI(batchId, _key);
                _setEncryptedData(batchId, "");
                _setBaseURI(batchId, revealedURI);
                emit TokenURIRevealed(_index, revealedURI);
            }
            /*///////////////////////////////////////////////////////////////
                                Setter functions
            //////////////////////////////////////////////////////////////*/
            /// @dev Lets a contract admin set the global maximum supply for collection's NFTs.
            function setMaxTotalSupply(uint256 _maxTotalSupply) external onlyRole(DEFAULT_ADMIN_ROLE) {
                maxTotalSupply = _maxTotalSupply;
                emit MaxTotalSupplyUpdated(_maxTotalSupply);
            }
            /*///////////////////////////////////////////////////////////////
                                Internal functions
            //////////////////////////////////////////////////////////////*/
            /// @dev Runs before every `claim` function call.
            function _beforeClaim(
                address,
                uint256 _quantity,
                address,
                uint256,
                AllowlistProof calldata,
                bytes memory
            ) internal view override {
                require(_currentIndex + _quantity <= nextTokenIdToLazyMint, "!Tokens");
                require(maxTotalSupply == 0 || _currentIndex + _quantity <= maxTotalSupply, "exceed max total supply.");
            }
            /// @dev Collects and distributes the primary sale value of NFTs being claimed.
            function _collectPriceOnClaim(
                address _primarySaleRecipient,
                uint256 _quantityToClaim,
                address _currency,
                uint256 _pricePerToken
            ) internal override {
                if (_pricePerToken == 0) {
                    return;
                }
                (address platformFeeRecipient, uint16 platformFeeBps) = getPlatformFeeInfo();
                address saleRecipient = _primarySaleRecipient == address(0) ? primarySaleRecipient() : _primarySaleRecipient;
                uint256 totalPrice = _quantityToClaim * _pricePerToken;
                uint256 platformFees = (totalPrice * platformFeeBps) / MAX_BPS;
                if (_currency == CurrencyTransferLib.NATIVE_TOKEN) {
                    if (msg.value != totalPrice) {
                        revert("!Price");
                    }
                }
                CurrencyTransferLib.transferCurrency(_currency, _msgSender(), platformFeeRecipient, platformFees);
                CurrencyTransferLib.transferCurrency(_currency, _msgSender(), saleRecipient, totalPrice - platformFees);
            }
            /// @dev Transfers the NFTs being claimed.
            function _transferTokensOnClaim(address _to, uint256 _quantityBeingClaimed)
                internal
                override
                returns (uint256 startTokenId)
            {
                startTokenId = _currentIndex;
                _safeMint(_to, _quantityBeingClaimed);
            }
            /// @dev Checks whether platform fee info can be set in the given execution context.
            function _canSetPlatformFeeInfo() internal view override returns (bool) {
                return hasRole(DEFAULT_ADMIN_ROLE, _msgSender());
            }
            /// @dev Checks whether primary sale recipient can be set in the given execution context.
            function _canSetPrimarySaleRecipient() internal view override returns (bool) {
                return hasRole(DEFAULT_ADMIN_ROLE, _msgSender());
            }
            /// @dev Checks whether owner can be set in the given execution context.
            function _canSetOwner() internal view override returns (bool) {
                return hasRole(DEFAULT_ADMIN_ROLE, _msgSender());
            }
            /// @dev Checks whether royalty info can be set in the given execution context.
            function _canSetRoyaltyInfo() internal view override returns (bool) {
                return hasRole(DEFAULT_ADMIN_ROLE, _msgSender());
            }
            /// @dev Checks whether contract metadata can be set in the given execution context.
            function _canSetContractURI() internal view override returns (bool) {
                return hasRole(DEFAULT_ADMIN_ROLE, _msgSender());
            }
            /// @dev Checks whether platform fee info can be set in the given execution context.
            function _canSetClaimConditions() internal view override returns (bool) {
                return hasRole(DEFAULT_ADMIN_ROLE, _msgSender());
            }
            /// @dev Returns whether lazy minting can be done in the given execution context.
            function _canLazyMint() internal view virtual override returns (bool) {
                return hasRole(minterRole, _msgSender());
            }
            /// @dev Returns whether operator restriction can be set in the given execution context.
            function _canSetOperatorRestriction() internal virtual override returns (bool) {
                return hasRole(DEFAULT_ADMIN_ROLE, _msgSender());
            }
            /*///////////////////////////////////////////////////////////////
                                Miscellaneous
            //////////////////////////////////////////////////////////////*/
            /**
             * Returns the total amount of tokens minted in the contract.
             */
            function totalMinted() external view returns (uint256) {
                unchecked {
                    return _currentIndex - _startTokenId();
                }
            }
            /// @dev The tokenId of the next NFT that will be minted / lazy minted.
            function nextTokenIdToMint() external view returns (uint256) {
                return nextTokenIdToLazyMint;
            }
            /// @dev The next token ID of the NFT that can be claimed.
            function nextTokenIdToClaim() external view returns (uint256) {
                return _currentIndex;
            }
            /// @dev Burns `tokenId`. See {ERC721-_burn}.
            function burn(uint256 tokenId) external virtual {
                // note: ERC721AUpgradeable's `_burn(uint256,bool)` internally checks for token approvals.
                _burn(tokenId, true);
            }
            /// @dev See {ERC721-_beforeTokenTransfer}.
            function _beforeTokenTransfers(
                address from,
                address to,
                uint256 startTokenId,
                uint256 quantity
            ) internal virtual override {
                super._beforeTokenTransfers(from, to, startTokenId, quantity);
                // if transfer is restricted on the contract, we still want to allow burning and minting
                if (!hasRole(transferRole, address(0)) && from != address(0) && to != address(0)) {
                    if (!hasRole(transferRole, from) && !hasRole(transferRole, to)) {
                        revert("!Transfer-Role");
                    }
                }
            }
            /// @dev See {ERC721-setApprovalForAll}.
            function setApprovalForAll(address operator, bool approved) public override onlyAllowedOperatorApproval(operator) {
                super.setApprovalForAll(operator, approved);
            }
            /// @dev See {ERC721-approve}.
            function approve(address operator, uint256 tokenId) public override onlyAllowedOperatorApproval(operator) {
                super.approve(operator, tokenId);
            }
            /// @dev See {ERC721-_transferFrom}.
            function transferFrom(
                address from,
                address to,
                uint256 tokenId
            ) public override(ERC721AUpgradeable) onlyAllowedOperator(from) {
                super.transferFrom(from, to, tokenId);
            }
            /// @dev See {ERC721-_safeTransferFrom}.
            function safeTransferFrom(
                address from,
                address to,
                uint256 tokenId
            ) public override(ERC721AUpgradeable) onlyAllowedOperator(from) {
                super.safeTransferFrom(from, to, tokenId);
            }
            /// @dev See {ERC721-_safeTransferFrom}.
            function safeTransferFrom(
                address from,
                address to,
                uint256 tokenId,
                bytes memory data
            ) public override(ERC721AUpgradeable) onlyAllowedOperator(from) {
                super.safeTransferFrom(from, to, tokenId, data);
            }
            function _dropMsgSender() internal view virtual override returns (address) {
                return _msgSender();
            }
            function _msgSender()
                internal
                view
                virtual
                override(ContextUpgradeable, ERC2771ContextUpgradeable)
                returns (address sender)
            {
                return ERC2771ContextUpgradeable._msgSender();
            }
            function _msgData()
                internal
                view
                virtual
                override(ContextUpgradeable, ERC2771ContextUpgradeable)
                returns (bytes calldata)
            {
                return ERC2771ContextUpgradeable._msgData();
            }
        }
        // SPDX-License-Identifier: MIT
        // ERC721A Contracts v3.3.0
        // Creator: Chiru Labs
        ////////// CHANGELOG: turn `approve` to virtual //////////
        pragma solidity ^0.8.4;
        import "erc721a-upgradeable/contracts/IERC721AUpgradeable.sol";
        import "@openzeppelin/contracts-upgradeable/token/ERC721/IERC721ReceiverUpgradeable.sol";
        import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
        import "@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol";
        import "@openzeppelin/contracts-upgradeable/utils/StringsUpgradeable.sol";
        import "@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol";
        import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
        /**
         * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
         * the Metadata extension. Built to optimize for lower gas during batch mints.
         *
         * Assumes serials are sequentially minted starting at _startTokenId() (defaults to 0, e.g. 0, 1, 2, 3..).
         *
         * Assumes that an owner cannot have more than 2**64 - 1 (max value of uint64) of supply.
         *
         * Assumes that the maximum token id cannot exceed 2**256 - 1 (max value of uint256).
         */
        contract ERC721AUpgradeable is Initializable, ContextUpgradeable, ERC165Upgradeable, IERC721AUpgradeable {
            using AddressUpgradeable for address;
            using StringsUpgradeable for uint256;
            // The tokenId of the next token to be minted.
            uint256 internal _currentIndex;
            // The number of tokens burned.
            uint256 internal _burnCounter;
            // Token name
            string private _name;
            // Token symbol
            string private _symbol;
            // Mapping from token ID to ownership details
            // An empty struct value does not necessarily mean the token is unowned. See _ownershipOf implementation for details.
            mapping(uint256 => TokenOwnership) internal _ownerships;
            // Mapping owner address to address data
            mapping(address => AddressData) private _addressData;
            // Mapping from token ID to approved address
            mapping(uint256 => address) private _tokenApprovals;
            // Mapping from owner to operator approvals
            mapping(address => mapping(address => bool)) private _operatorApprovals;
            function __ERC721A_init(string memory name_, string memory symbol_) internal onlyInitializing {
                __ERC721A_init_unchained(name_, symbol_);
            }
            function __ERC721A_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing {
                _name = name_;
                _symbol = symbol_;
                _currentIndex = _startTokenId();
            }
            /**
             * To change the starting tokenId, please override this function.
             */
            function _startTokenId() internal view virtual returns (uint256) {
                return 0;
            }
            /**
             * @dev Burned tokens are calculated here, use _totalMinted() if you want to count just minted tokens.
             */
            function totalSupply() public view override returns (uint256) {
                // Counter underflow is impossible as _burnCounter cannot be incremented
                // more than _currentIndex - _startTokenId() times
                unchecked {
                    return _currentIndex - _burnCounter - _startTokenId();
                }
            }
            /**
             * Returns the total amount of tokens minted in the contract.
             */
            function _totalMinted() internal view returns (uint256) {
                // Counter underflow is impossible as _currentIndex does not decrement,
                // and it is initialized to _startTokenId()
                unchecked {
                    return _currentIndex - _startTokenId();
                }
            }
            /**
             * @dev See {IERC165-supportsInterface}.
             */
            function supportsInterface(bytes4 interfaceId)
                public
                view
                virtual
                override(ERC165Upgradeable, IERC165Upgradeable)
                returns (bool)
            {
                return
                    interfaceId == type(IERC721Upgradeable).interfaceId ||
                    interfaceId == type(IERC721MetadataUpgradeable).interfaceId ||
                    super.supportsInterface(interfaceId);
            }
            /**
             * @dev See {IERC721-balanceOf}.
             */
            function balanceOf(address owner) public view override returns (uint256) {
                if (owner == address(0)) revert BalanceQueryForZeroAddress();
                return uint256(_addressData[owner].balance);
            }
            /**
             * Returns the number of tokens minted by `owner`.
             */
            function _numberMinted(address owner) internal view returns (uint256) {
                return uint256(_addressData[owner].numberMinted);
            }
            /**
             * Returns the number of tokens burned by or on behalf of `owner`.
             */
            function _numberBurned(address owner) internal view returns (uint256) {
                return uint256(_addressData[owner].numberBurned);
            }
            /**
             * Returns the auxillary data for `owner`. (e.g. number of whitelist mint slots used).
             */
            function _getAux(address owner) internal view returns (uint64) {
                return _addressData[owner].aux;
            }
            /**
             * Sets the auxillary data for `owner`. (e.g. number of whitelist mint slots used).
             * If there are multiple variables, please pack them into a uint64.
             */
            function _setAux(address owner, uint64 aux) internal {
                _addressData[owner].aux = aux;
            }
            /**
             * Gas spent here starts off proportional to the maximum mint batch size.
             * It gradually moves to O(1) as tokens get transferred around in the collection over time.
             */
            function _ownershipOf(uint256 tokenId) internal view returns (TokenOwnership memory) {
                uint256 curr = tokenId;
                unchecked {
                    if (_startTokenId() <= curr)
                        if (curr < _currentIndex) {
                            TokenOwnership memory ownership = _ownerships[curr];
                            if (!ownership.burned) {
                                if (ownership.addr != address(0)) {
                                    return ownership;
                                }
                                // Invariant:
                                // There will always be an ownership that has an address and is not burned
                                // before an ownership that does not have an address and is not burned.
                                // Hence, curr will not underflow.
                                while (true) {
                                    curr--;
                                    ownership = _ownerships[curr];
                                    if (ownership.addr != address(0)) {
                                        return ownership;
                                    }
                                }
                            }
                        }
                }
                revert OwnerQueryForNonexistentToken();
            }
            /**
             * @dev See {IERC721-ownerOf}.
             */
            function ownerOf(uint256 tokenId) public view override returns (address) {
                return _ownershipOf(tokenId).addr;
            }
            /**
             * @dev See {IERC721Metadata-name}.
             */
            function name() public view virtual override returns (string memory) {
                return _name;
            }
            /**
             * @dev See {IERC721Metadata-symbol}.
             */
            function symbol() public view virtual override returns (string memory) {
                return _symbol;
            }
            /**
             * @dev See {IERC721Metadata-tokenURI}.
             */
            function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
                if (!_exists(tokenId)) revert URIQueryForNonexistentToken();
                string memory baseURI = _baseURI();
                return bytes(baseURI).length != 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
            }
            /**
             * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
             * token will be the concatenation of the `baseURI` and the `tokenId`. Empty
             * by default, can be overriden in child contracts.
             */
            function _baseURI() internal view virtual returns (string memory) {
                return "";
            }
            /**
             * @dev See {IERC721-approve}.
             */
            function approve(address to, uint256 tokenId) public virtual override {
                address owner = ERC721AUpgradeable.ownerOf(tokenId);
                if (to == owner) revert ApprovalToCurrentOwner();
                if (_msgSender() != owner)
                    if (!isApprovedForAll(owner, _msgSender())) {
                        revert ApprovalCallerNotOwnerNorApproved();
                    }
                _approve(to, tokenId, owner);
            }
            /**
             * @dev See {IERC721-getApproved}.
             */
            function getApproved(uint256 tokenId) public view override returns (address) {
                if (!_exists(tokenId)) revert ApprovalQueryForNonexistentToken();
                return _tokenApprovals[tokenId];
            }
            /**
             * @dev See {IERC721-setApprovalForAll}.
             */
            function setApprovalForAll(address operator, bool approved) public virtual override {
                if (operator == _msgSender()) revert ApproveToCaller();
                _operatorApprovals[_msgSender()][operator] = approved;
                emit ApprovalForAll(_msgSender(), operator, approved);
            }
            /**
             * @dev See {IERC721-isApprovedForAll}.
             */
            function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
                return _operatorApprovals[owner][operator];
            }
            /**
             * @dev See {IERC721-transferFrom}.
             */
            function transferFrom(
                address from,
                address to,
                uint256 tokenId
            ) public virtual override {
                _transfer(from, to, tokenId);
            }
            /**
             * @dev See {IERC721-safeTransferFrom}.
             */
            function safeTransferFrom(
                address from,
                address to,
                uint256 tokenId
            ) public virtual override {
                safeTransferFrom(from, to, tokenId, "");
            }
            /**
             * @dev See {IERC721-safeTransferFrom}.
             */
            function safeTransferFrom(
                address from,
                address to,
                uint256 tokenId,
                bytes memory _data
            ) public virtual override {
                _transfer(from, to, tokenId);
                if (to.isContract())
                    if (!_checkContractOnERC721Received(from, to, tokenId, _data)) {
                        revert TransferToNonERC721ReceiverImplementer();
                    }
            }
            /**
             * @dev Returns whether `tokenId` exists.
             *
             * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
             *
             * Tokens start existing when they are minted (`_mint`),
             */
            function _exists(uint256 tokenId) internal view returns (bool) {
                return _startTokenId() <= tokenId && tokenId < _currentIndex && !_ownerships[tokenId].burned;
            }
            /**
             * @dev Equivalent to `_safeMint(to, quantity, '')`.
             */
            function _safeMint(address to, uint256 quantity) internal {
                _safeMint(to, quantity, "");
            }
            /**
             * @dev Safely mints `quantity` tokens and transfers them to `to`.
             *
             * Requirements:
             *
             * - If `to` refers to a smart contract, it must implement
             *   {IERC721Receiver-onERC721Received}, which is called for each safe transfer.
             * - `quantity` must be greater than 0.
             *
             * Emits a {Transfer} event.
             */
            function _safeMint(
                address to,
                uint256 quantity,
                bytes memory _data
            ) internal {
                uint256 startTokenId = _currentIndex;
                if (to == address(0)) revert MintToZeroAddress();
                if (quantity == 0) revert MintZeroQuantity();
                _beforeTokenTransfers(address(0), to, startTokenId, quantity);
                // Overflows are incredibly unrealistic.
                // balance or numberMinted overflow if current value of either + quantity > 1.8e19 (2**64) - 1
                // updatedIndex overflows if _currentIndex + quantity > 1.2e77 (2**256) - 1
                unchecked {
                    _addressData[to].balance += uint64(quantity);
                    _addressData[to].numberMinted += uint64(quantity);
                    _ownerships[startTokenId].addr = to;
                    _ownerships[startTokenId].startTimestamp = uint64(block.timestamp);
                    uint256 updatedIndex = startTokenId;
                    uint256 end = updatedIndex + quantity;
                    if (to.isContract()) {
                        do {
                            emit Transfer(address(0), to, updatedIndex);
                            if (!_checkContractOnERC721Received(address(0), to, updatedIndex++, _data)) {
                                revert TransferToNonERC721ReceiverImplementer();
                            }
                        } while (updatedIndex < end);
                        // Reentrancy protection
                        if (_currentIndex != startTokenId) revert();
                    } else {
                        do {
                            emit Transfer(address(0), to, updatedIndex++);
                        } while (updatedIndex < end);
                    }
                    _currentIndex = updatedIndex;
                }
                _afterTokenTransfers(address(0), to, startTokenId, quantity);
            }
            /**
             * @dev Mints `quantity` tokens and transfers them to `to`.
             *
             * Requirements:
             *
             * - `to` cannot be the zero address.
             * - `quantity` must be greater than 0.
             *
             * Emits a {Transfer} event.
             */
            function _mint(address to, uint256 quantity) internal {
                uint256 startTokenId = _currentIndex;
                if (to == address(0)) revert MintToZeroAddress();
                if (quantity == 0) revert MintZeroQuantity();
                _beforeTokenTransfers(address(0), to, startTokenId, quantity);
                // Overflows are incredibly unrealistic.
                // balance or numberMinted overflow if current value of either + quantity > 1.8e19 (2**64) - 1
                // updatedIndex overflows if _currentIndex + quantity > 1.2e77 (2**256) - 1
                unchecked {
                    _addressData[to].balance += uint64(quantity);
                    _addressData[to].numberMinted += uint64(quantity);
                    _ownerships[startTokenId].addr = to;
                    _ownerships[startTokenId].startTimestamp = uint64(block.timestamp);
                    uint256 updatedIndex = startTokenId;
                    uint256 end = updatedIndex + quantity;
                    do {
                        emit Transfer(address(0), to, updatedIndex++);
                    } while (updatedIndex < end);
                    _currentIndex = updatedIndex;
                }
                _afterTokenTransfers(address(0), to, startTokenId, quantity);
            }
            /**
             * @dev Transfers `tokenId` from `from` to `to`.
             *
             * Requirements:
             *
             * - `to` cannot be the zero address.
             * - `tokenId` token must be owned by `from`.
             *
             * Emits a {Transfer} event.
             */
            function _transfer(
                address from,
                address to,
                uint256 tokenId
            ) private {
                TokenOwnership memory prevOwnership = _ownershipOf(tokenId);
                if (prevOwnership.addr != from) revert TransferFromIncorrectOwner();
                bool isApprovedOrOwner = (_msgSender() == from ||
                    isApprovedForAll(from, _msgSender()) ||
                    getApproved(tokenId) == _msgSender());
                if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();
                if (to == address(0)) revert TransferToZeroAddress();
                _beforeTokenTransfers(from, to, tokenId, 1);
                // Clear approvals from the previous owner
                _approve(address(0), tokenId, from);
                // Underflow of the sender's balance is impossible because we check for
                // ownership above and the recipient's balance can't realistically overflow.
                // Counter overflow is incredibly unrealistic as tokenId would have to be 2**256.
                unchecked {
                    _addressData[from].balance -= 1;
                    _addressData[to].balance += 1;
                    TokenOwnership storage currSlot = _ownerships[tokenId];
                    currSlot.addr = to;
                    currSlot.startTimestamp = uint64(block.timestamp);
                    // If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
                    // Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
                    uint256 nextTokenId = tokenId + 1;
                    TokenOwnership storage nextSlot = _ownerships[nextTokenId];
                    if (nextSlot.addr == address(0)) {
                        // This will suffice for checking _exists(nextTokenId),
                        // as a burned slot cannot contain the zero address.
                        if (nextTokenId != _currentIndex) {
                            nextSlot.addr = from;
                            nextSlot.startTimestamp = prevOwnership.startTimestamp;
                        }
                    }
                }
                emit Transfer(from, to, tokenId);
                _afterTokenTransfers(from, to, tokenId, 1);
            }
            /**
             * @dev Equivalent to `_burn(tokenId, false)`.
             */
            function _burn(uint256 tokenId) internal virtual {
                _burn(tokenId, false);
            }
            /**
             * @dev Destroys `tokenId`.
             * The approval is cleared when the token is burned.
             *
             * Requirements:
             *
             * - `tokenId` must exist.
             *
             * Emits a {Transfer} event.
             */
            function _burn(uint256 tokenId, bool approvalCheck) internal virtual {
                TokenOwnership memory prevOwnership = _ownershipOf(tokenId);
                address from = prevOwnership.addr;
                if (approvalCheck) {
                    bool isApprovedOrOwner = (_msgSender() == from ||
                        isApprovedForAll(from, _msgSender()) ||
                        getApproved(tokenId) == _msgSender());
                    if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();
                }
                _beforeTokenTransfers(from, address(0), tokenId, 1);
                // Clear approvals from the previous owner
                _approve(address(0), tokenId, from);
                // Underflow of the sender's balance is impossible because we check for
                // ownership above and the recipient's balance can't realistically overflow.
                // Counter overflow is incredibly unrealistic as tokenId would have to be 2**256.
                unchecked {
                    AddressData storage addressData = _addressData[from];
                    addressData.balance -= 1;
                    addressData.numberBurned += 1;
                    // Keep track of who burned the token, and the timestamp of burning.
                    TokenOwnership storage currSlot = _ownerships[tokenId];
                    currSlot.addr = from;
                    currSlot.startTimestamp = uint64(block.timestamp);
                    currSlot.burned = true;
                    // If the ownership slot of tokenId+1 is not explicitly set, that means the burn initiator owns it.
                    // Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
                    uint256 nextTokenId = tokenId + 1;
                    TokenOwnership storage nextSlot = _ownerships[nextTokenId];
                    if (nextSlot.addr == address(0)) {
                        // This will suffice for checking _exists(nextTokenId),
                        // as a burned slot cannot contain the zero address.
                        if (nextTokenId != _currentIndex) {
                            nextSlot.addr = from;
                            nextSlot.startTimestamp = prevOwnership.startTimestamp;
                        }
                    }
                }
                emit Transfer(from, address(0), tokenId);
                _afterTokenTransfers(from, address(0), tokenId, 1);
                // Overflow not possible, as _burnCounter cannot be exceed _currentIndex times.
                unchecked {
                    _burnCounter++;
                }
            }
            /**
             * @dev Approve `to` to operate on `tokenId`
             *
             * Emits a {Approval} event.
             */
            function _approve(
                address to,
                uint256 tokenId,
                address owner
            ) private {
                _tokenApprovals[tokenId] = to;
                emit Approval(owner, to, tokenId);
            }
            /**
             * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target contract.
             *
             * @param from address representing the previous owner of the given token ID
             * @param to target address that will receive the tokens
             * @param tokenId uint256 ID of the token to be transferred
             * @param _data bytes optional data to send along with the call
             * @return bool whether the call correctly returned the expected magic value
             */
            function _checkContractOnERC721Received(
                address from,
                address to,
                uint256 tokenId,
                bytes memory _data
            ) private returns (bool) {
                try IERC721ReceiverUpgradeable(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (
                    bytes4 retval
                ) {
                    return retval == IERC721ReceiverUpgradeable(to).onERC721Received.selector;
                } catch (bytes memory reason) {
                    if (reason.length == 0) {
                        revert TransferToNonERC721ReceiverImplementer();
                    } else {
                        assembly {
                            revert(add(32, reason), mload(reason))
                        }
                    }
                }
            }
            /**
             * @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
             * And also called before burning one token.
             *
             * startTokenId - the first token id to be transferred
             * quantity - the amount to be transferred
             *
             * Calling conditions:
             *
             * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be
             * transferred to `to`.
             * - When `from` is zero, `tokenId` will be minted for `to`.
             * - When `to` is zero, `tokenId` will be burned by `from`.
             * - `from` and `to` are never both zero.
             */
            function _beforeTokenTransfers(
                address from,
                address to,
                uint256 startTokenId,
                uint256 quantity
            ) internal virtual {}
            /**
             * @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
             * minting.
             * And also called after one token has been burned.
             *
             * startTokenId - the first token id to be transferred
             * quantity - the amount to be transferred
             *
             * Calling conditions:
             *
             * - When `from` and `to` are both non-zero, `from`'s `tokenId` has been
             * transferred to `to`.
             * - When `from` is zero, `tokenId` has been minted for `to`.
             * - When `to` is zero, `tokenId` has been burned by `from`.
             * - `from` and `to` are never both zero.
             */
            function _afterTokenTransfers(
                address from,
                address to,
                uint256 startTokenId,
                uint256 quantity
            ) internal virtual {}
            /**
             * @dev This empty reserved space is put in place to allow future versions to add new
             * variables without shifting down storage in the inheritance chain.
             * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
             */
            uint256[42] private __gap;
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
        pragma solidity ^0.8.0;
        /**
         * @dev Interface of the ERC165 standard, as defined in the
         * [EIP](https://eips.ethereum.org/EIPS/eip-165).
         *
         * Implementers can declare support of contract interfaces, which can then be
         * queried by others ({ERC165Checker}).
         *
         * For an implementation, see {ERC165}.
         */
        interface IERC165 {
            /**
             * @dev Returns true if this contract implements the interface defined by
             * `interfaceId`. See the corresponding
             * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)
             * to learn more about how these ids are created.
             *
             * This function call must use less than 30 000 gas.
             */
            function supportsInterface(bytes4 interfaceId) external view returns (bool);
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /**
         * @title ERC20 interface
         * @dev see https://github.com/ethereum/EIPs/issues/20
         */
        interface IERC20 {
            function totalSupply() external view returns (uint256);
            function balanceOf(address who) external view returns (uint256);
            function allowance(address owner, address spender) external view returns (uint256);
            function transfer(address to, uint256 value) external returns (bool);
            function approve(address spender, uint256 value) external returns (bool);
            function transferFrom(
                address from,
                address to,
                uint256 value
            ) external returns (bool);
            event Transfer(address indexed from, address indexed to, uint256 value);
            event Approval(address indexed owner, address indexed spender, uint256 value);
        }
        // SPDX-License-Identifier: Apache 2.0
        pragma solidity ^0.8.0;
        import "./IERC165.sol";
        /**
         * @dev Interface for the NFT Royalty Standard.
         *
         * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal
         * support for royalty payments across all NFT marketplaces and ecosystem participants.
         *
         * _Available since v4.5._
         */
        interface IERC2981 is IERC165 {
            /**
             * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of
             * exchange. The royalty amount is denominated and should be payed in that same unit of exchange.
             */
            function royaltyInfo(uint256 tokenId, uint256 salePrice)
                external
                view
                returns (address receiver, uint256 royaltyAmount);
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        /**
         *  @title   Batch-mint Metadata
         *  @notice  The `BatchMintMetadata` is a contract extension for any base NFT contract. It lets the smart contract
         *           using this extension set metadata for `n` number of NFTs all at once. This is enabled by storing a single
         *           base URI for a batch of `n` NFTs, where the metadata for each NFT in a relevant batch is `baseURI/tokenId`.
         */
        contract BatchMintMetadata {
            /// @dev Largest tokenId of each batch of tokens with the same baseURI.
            uint256[] private batchIds;
            /// @dev Mapping from id of a batch of tokens => to base URI for the respective batch of tokens.
            mapping(uint256 => string) private baseURI;
            /**
             *  @notice         Returns the count of batches of NFTs.
             *  @dev            Each batch of tokens has an in ID and an associated `baseURI`.
             *                  See {batchIds}.
             */
            function getBaseURICount() public view returns (uint256) {
                return batchIds.length;
            }
            /**
             *  @notice         Returns the ID for the batch of tokens the given tokenId belongs to.
             *  @dev            See {getBaseURICount}.
             *  @param _index   ID of a token.
             */
            function getBatchIdAtIndex(uint256 _index) public view returns (uint256) {
                if (_index >= getBaseURICount()) {
                    revert("Invalid index");
                }
                return batchIds[_index];
            }
            /// @dev Returns the id for the batch of tokens the given tokenId belongs to.
            function _getBatchId(uint256 _tokenId) internal view returns (uint256 batchId, uint256 index) {
                uint256 numOfTokenBatches = getBaseURICount();
                uint256[] memory indices = batchIds;
                for (uint256 i = 0; i < numOfTokenBatches; i += 1) {
                    if (_tokenId < indices[i]) {
                        index = i;
                        batchId = indices[i];
                        return (batchId, index);
                    }
                }
                revert("Invalid tokenId");
            }
            /// @dev Returns the baseURI for a token. The intended metadata URI for the token is baseURI + tokenId.
            function _getBaseURI(uint256 _tokenId) internal view returns (string memory) {
                uint256 numOfTokenBatches = getBaseURICount();
                uint256[] memory indices = batchIds;
                for (uint256 i = 0; i < numOfTokenBatches; i += 1) {
                    if (_tokenId < indices[i]) {
                        return baseURI[indices[i]];
                    }
                }
                revert("Invalid tokenId");
            }
            /// @dev Sets the base URI for the batch of tokens with the given batchId.
            function _setBaseURI(uint256 _batchId, string memory _baseURI) internal {
                baseURI[_batchId] = _baseURI;
            }
            /// @dev Mints a batch of tokenIds and associates a common baseURI to all those Ids.
            function _batchMintMetadata(
                uint256 _startId,
                uint256 _amountToMint,
                string memory _baseURIForTokens
            ) internal returns (uint256 nextTokenIdToMint, uint256 batchId) {
                batchId = _startId + _amountToMint;
                nextTokenIdToMint = batchId;
                batchIds.push(batchId);
                baseURI[batchId] = _baseURIForTokens;
            }
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        import "./interface/IContractMetadata.sol";
        /**
         *  @title   Contract Metadata
         *  @notice  Thirdweb's `ContractMetadata` is a contract extension for any base contracts. It lets you set a metadata URI
         *           for you contract.
         *           Additionally, `ContractMetadata` is necessary for NFT contracts that want royalties to get distributed on OpenSea.
         */
        abstract contract ContractMetadata is IContractMetadata {
            /// @notice Returns the contract metadata URI.
            string public override contractURI;
            /**
             *  @notice         Lets a contract admin set the URI for contract-level metadata.
             *  @dev            Caller should be authorized to setup contractURI, e.g. contract admin.
             *                  See {_canSetContractURI}.
             *                  Emits {ContractURIUpdated Event}.
             *
             *  @param _uri     keccak256 hash of the role. e.g. keccak256("TRANSFER_ROLE")
             */
            function setContractURI(string memory _uri) external override {
                if (!_canSetContractURI()) {
                    revert("Not authorized");
                }
                _setupContractURI(_uri);
            }
            /// @dev Lets a contract admin set the URI for contract-level metadata.
            function _setupContractURI(string memory _uri) internal {
                string memory prevURI = contractURI;
                contractURI = _uri;
                emit ContractURIUpdated(prevURI, _uri);
            }
            /// @dev Returns whether contract metadata can be set in the given execution context.
            function _canSetContractURI() internal view virtual returns (bool);
        }
        // SPDX-License-Identifier: Apache 2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        import { OperatorFiltererUpgradeable } from "./OperatorFiltererUpgradeable.sol";
        abstract contract DefaultOperatorFiltererUpgradeable is OperatorFiltererUpgradeable {
            address constant DEFAULT_SUBSCRIPTION = address(0x3cc6CddA760b79bAfa08dF41ECFA224f810dCeB6);
            function __DefaultOperatorFilterer_init() internal {
                OperatorFiltererUpgradeable.__OperatorFilterer_init(DEFAULT_SUBSCRIPTION, true);
            }
            function subscribeToRegistry(address _subscription) external {
                require(_canSetOperatorRestriction(), "Not authorized to subscribe to registry.");
                _register(_subscription, true);
            }
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        import "./interface/IDelayedReveal.sol";
        /**
         *  @title   Delayed Reveal
         *  @notice  Thirdweb's `DelayedReveal` is a contract extension for base NFT contracts. It lets you create batches of
         *           'delayed-reveal' NFTs. You can learn more about the usage of delayed reveal NFTs here - https://blog.thirdweb.com/delayed-reveal-nfts
         */
        abstract contract DelayedReveal is IDelayedReveal {
            /// @dev Mapping from tokenId of a batch of tokens => to delayed reveal data.
            mapping(uint256 => bytes) public encryptedData;
            /// @dev Sets the delayed reveal data for a batchId.
            function _setEncryptedData(uint256 _batchId, bytes memory _encryptedData) internal {
                encryptedData[_batchId] = _encryptedData;
            }
            /**
             *  @notice             Returns revealed URI for a batch of NFTs.
             *  @dev                Reveal encrypted base URI for `_batchId` with caller/admin's `_key` used for encryption.
             *                      Reverts if there's no encrypted URI for `_batchId`.
             *                      See {encryptDecrypt}.
             *
             *  @param _batchId     ID of the batch for which URI is being revealed.
             *  @param _key         Secure key used by caller/admin for encryption of baseURI.
             *
             *  @return revealedURI Decrypted base URI.
             */
            function getRevealURI(uint256 _batchId, bytes calldata _key) public view returns (string memory revealedURI) {
                bytes memory data = encryptedData[_batchId];
                if (data.length == 0) {
                    revert("Nothing to reveal");
                }
                (bytes memory encryptedURI, bytes32 provenanceHash) = abi.decode(data, (bytes, bytes32));
                revealedURI = string(encryptDecrypt(encryptedURI, _key));
                require(keccak256(abi.encodePacked(revealedURI, _key, block.chainid)) == provenanceHash, "Incorrect key");
            }
            /**
             *  @notice         Encrypt/decrypt data on chain.
             *  @dev            Encrypt/decrypt given `data` with `key`. Uses inline assembly.
             *                  See: https://ethereum.stackexchange.com/questions/69825/decrypt-message-on-chain
             *
             *  @param data     Bytes of data to encrypt/decrypt.
             *  @param key      Secure key used by caller for encryption/decryption.
             *
             *  @return result  Output after encryption/decryption of given data.
             */
            function encryptDecrypt(bytes memory data, bytes calldata key) public pure override returns (bytes memory result) {
                // Store data length on stack for later use
                uint256 length = data.length;
                // solhint-disable-next-line no-inline-assembly
                assembly {
                    // Set result to free memory pointer
                    result := mload(0x40)
                    // Increase free memory pointer by lenght + 32
                    mstore(0x40, add(add(result, length), 32))
                    // Set result length
                    mstore(result, length)
                }
                // Iterate over the data stepping by 32 bytes
                for (uint256 i = 0; i < length; i += 32) {
                    // Generate hash of the key and offset
                    bytes32 hash = keccak256(abi.encodePacked(key, i));
                    bytes32 chunk;
                    // solhint-disable-next-line no-inline-assembly
                    assembly {
                        // Read 32-bytes data chunk
                        chunk := mload(add(data, add(i, 32)))
                    }
                    // XOR the chunk with hash
                    chunk ^= hash;
                    // solhint-disable-next-line no-inline-assembly
                    assembly {
                        // Write 32-byte encrypted chunk
                        mstore(add(result, add(i, 32)), chunk)
                    }
                }
            }
            /**
             *  @notice         Returns whether the relvant batch of NFTs is subject to a delayed reveal.
             *  @dev            Returns `true` if `_batchId`'s base URI is encrypted.
             *  @param _batchId ID of a batch of NFTs.
             */
            function isEncryptedBatch(uint256 _batchId) public view returns (bool) {
                return encryptedData[_batchId].length > 0;
            }
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        import "./interface/IDrop.sol";
        import "../lib/MerkleProof.sol";
        abstract contract Drop is IDrop {
            /*///////////////////////////////////////////////////////////////
                                    State variables
            //////////////////////////////////////////////////////////////*/
            /// @dev The active conditions for claiming tokens.
            ClaimConditionList public claimCondition;
            /*///////////////////////////////////////////////////////////////
                                    Drop logic
            //////////////////////////////////////////////////////////////*/
            /// @dev Lets an account claim tokens.
            function claim(
                address _receiver,
                uint256 _quantity,
                address _currency,
                uint256 _pricePerToken,
                AllowlistProof calldata _allowlistProof,
                bytes memory _data
            ) public payable virtual override {
                _beforeClaim(_receiver, _quantity, _currency, _pricePerToken, _allowlistProof, _data);
                uint256 activeConditionId = getActiveClaimConditionId();
                verifyClaim(activeConditionId, _dropMsgSender(), _quantity, _currency, _pricePerToken, _allowlistProof);
                // Update contract state.
                claimCondition.conditions[activeConditionId].supplyClaimed += _quantity;
                claimCondition.supplyClaimedByWallet[activeConditionId][_dropMsgSender()] += _quantity;
                // If there's a price, collect price.
                _collectPriceOnClaim(address(0), _quantity, _currency, _pricePerToken);
                // Mint the relevant tokens to claimer.
                uint256 startTokenId = _transferTokensOnClaim(_receiver, _quantity);
                emit TokensClaimed(activeConditionId, _dropMsgSender(), _receiver, startTokenId, _quantity);
                _afterClaim(_receiver, _quantity, _currency, _pricePerToken, _allowlistProof, _data);
            }
            /// @dev Lets a contract admin set claim conditions.
            function setClaimConditions(ClaimCondition[] calldata _conditions, bool _resetClaimEligibility)
                external
                virtual
                override
            {
                if (!_canSetClaimConditions()) {
                    revert("Not authorized");
                }
                uint256 existingStartIndex = claimCondition.currentStartId;
                uint256 existingPhaseCount = claimCondition.count;
                /**
                 *  The mapping `supplyClaimedByWallet` uses a claim condition's UID as a key.
                 *
                 *  If `_resetClaimEligibility == true`, we assign completely new UIDs to the claim
                 *  conditions in `_conditions`, effectively resetting the restrictions on claims expressed
                 *  by `supplyClaimedByWallet`.
                 */
                uint256 newStartIndex = existingStartIndex;
                if (_resetClaimEligibility) {
                    newStartIndex = existingStartIndex + existingPhaseCount;
                }
                claimCondition.count = _conditions.length;
                claimCondition.currentStartId = newStartIndex;
                uint256 lastConditionStartTimestamp;
                for (uint256 i = 0; i < _conditions.length; i++) {
                    require(i == 0 || lastConditionStartTimestamp < _conditions[i].startTimestamp, "ST");
                    uint256 supplyClaimedAlready = claimCondition.conditions[newStartIndex + i].supplyClaimed;
                    if (supplyClaimedAlready > _conditions[i].maxClaimableSupply) {
                        revert("max supply claimed");
                    }
                    claimCondition.conditions[newStartIndex + i] = _conditions[i];
                    claimCondition.conditions[newStartIndex + i].supplyClaimed = supplyClaimedAlready;
                    lastConditionStartTimestamp = _conditions[i].startTimestamp;
                }
                /**
                 *  Gas refunds (as much as possible)
                 *
                 *  If `_resetClaimEligibility == true`, we assign completely new UIDs to the claim
                 *  conditions in `_conditions`. So, we delete claim conditions with UID < `newStartIndex`.
                 *
                 *  If `_resetClaimEligibility == false`, and there are more existing claim conditions
                 *  than in `_conditions`, we delete the existing claim conditions that don't get replaced
                 *  by the conditions in `_conditions`.
                 */
                if (_resetClaimEligibility) {
                    for (uint256 i = existingStartIndex; i < newStartIndex; i++) {
                        delete claimCondition.conditions[i];
                    }
                } else {
                    if (existingPhaseCount > _conditions.length) {
                        for (uint256 i = _conditions.length; i < existingPhaseCount; i++) {
                            delete claimCondition.conditions[newStartIndex + i];
                        }
                    }
                }
                emit ClaimConditionsUpdated(_conditions, _resetClaimEligibility);
            }
            /// @dev Checks a request to claim NFTs against the active claim condition's criteria.
            function verifyClaim(
                uint256 _conditionId,
                address _claimer,
                uint256 _quantity,
                address _currency,
                uint256 _pricePerToken,
                AllowlistProof calldata _allowlistProof
            ) public view returns (bool isOverride) {
                ClaimCondition memory currentClaimPhase = claimCondition.conditions[_conditionId];
                uint256 claimLimit = currentClaimPhase.quantityLimitPerWallet;
                uint256 claimPrice = currentClaimPhase.pricePerToken;
                address claimCurrency = currentClaimPhase.currency;
                if (currentClaimPhase.merkleRoot != bytes32(0)) {
                    (isOverride, ) = MerkleProof.verify(
                        _allowlistProof.proof,
                        currentClaimPhase.merkleRoot,
                        keccak256(
                            abi.encodePacked(
                                _claimer,
                                _allowlistProof.quantityLimitPerWallet,
                                _allowlistProof.pricePerToken,
                                _allowlistProof.currency
                            )
                        )
                    );
                }
                if (isOverride) {
                    claimLimit = _allowlistProof.quantityLimitPerWallet != 0
                        ? _allowlistProof.quantityLimitPerWallet
                        : claimLimit;
                    claimPrice = _allowlistProof.pricePerToken != type(uint256).max
                        ? _allowlistProof.pricePerToken
                        : claimPrice;
                    claimCurrency = _allowlistProof.pricePerToken != type(uint256).max && _allowlistProof.currency != address(0)
                        ? _allowlistProof.currency
                        : claimCurrency;
                }
                uint256 supplyClaimedByWallet = claimCondition.supplyClaimedByWallet[_conditionId][_claimer];
                if (_currency != claimCurrency || _pricePerToken != claimPrice) {
                    revert("!PriceOrCurrency");
                }
                if (_quantity == 0 || (_quantity + supplyClaimedByWallet > claimLimit)) {
                    revert("!Qty");
                }
                if (currentClaimPhase.supplyClaimed + _quantity > currentClaimPhase.maxClaimableSupply) {
                    revert("!MaxSupply");
                }
                if (currentClaimPhase.startTimestamp > block.timestamp) {
                    revert("cant claim yet");
                }
            }
            /// @dev At any given moment, returns the uid for the active claim condition.
            function getActiveClaimConditionId() public view returns (uint256) {
                for (uint256 i = claimCondition.currentStartId + claimCondition.count; i > claimCondition.currentStartId; i--) {
                    if (block.timestamp >= claimCondition.conditions[i - 1].startTimestamp) {
                        return i - 1;
                    }
                }
                revert("!CONDITION.");
            }
            /// @dev Returns the claim condition at the given uid.
            function getClaimConditionById(uint256 _conditionId) external view returns (ClaimCondition memory condition) {
                condition = claimCondition.conditions[_conditionId];
            }
            /// @dev Returns the supply claimed by claimer for a given conditionId.
            function getSupplyClaimedByWallet(uint256 _conditionId, address _claimer)
                public
                view
                returns (uint256 supplyClaimedByWallet)
            {
                supplyClaimedByWallet = claimCondition.supplyClaimedByWallet[_conditionId][_claimer];
            }
            /*////////////////////////////////////////////////////////////////////
                Optional hooks that can be implemented in the derived contract
            ///////////////////////////////////////////////////////////////////*/
            /// @dev Exposes the ability to override the msg sender.
            function _dropMsgSender() internal virtual returns (address) {
                return msg.sender;
            }
            /// @dev Runs before every `claim` function call.
            function _beforeClaim(
                address _receiver,
                uint256 _quantity,
                address _currency,
                uint256 _pricePerToken,
                AllowlistProof calldata _allowlistProof,
                bytes memory _data
            ) internal virtual {}
            /// @dev Runs after every `claim` function call.
            function _afterClaim(
                address _receiver,
                uint256 _quantity,
                address _currency,
                uint256 _pricePerToken,
                AllowlistProof calldata _allowlistProof,
                bytes memory _data
            ) internal virtual {}
            /*///////////////////////////////////////////////////////////////
                Virtual functions: to be implemented in derived contract
            //////////////////////////////////////////////////////////////*/
            /// @dev Collects and distributes the primary sale value of NFTs being claimed.
            function _collectPriceOnClaim(
                address _primarySaleRecipient,
                uint256 _quantityToClaim,
                address _currency,
                uint256 _pricePerToken
            ) internal virtual;
            /// @dev Transfers the NFTs being claimed.
            function _transferTokensOnClaim(address _to, uint256 _quantityBeingClaimed)
                internal
                virtual
                returns (uint256 startTokenId);
            /// @dev Determine what wallet can update claim conditions
            function _canSetClaimConditions() internal view virtual returns (bool);
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        import "./interface/ILazyMint.sol";
        import "./BatchMintMetadata.sol";
        /**
         *  The `LazyMint` is a contract extension for any base NFT contract. It lets you 'lazy mint' any number of NFTs
         *  at once. Here, 'lazy mint' means defining the metadata for particular tokenIds of your NFT contract, without actually
         *  minting a non-zero balance of NFTs of those tokenIds.
         */
        abstract contract LazyMint is ILazyMint, BatchMintMetadata {
            /// @notice The tokenId assigned to the next new NFT to be lazy minted.
            uint256 internal nextTokenIdToLazyMint;
            /**
             *  @notice                  Lets an authorized address lazy mint a given amount of NFTs.
             *
             *  @param _amount           The number of NFTs to lazy mint.
             *  @param _baseURIForTokens The base URI for the 'n' number of NFTs being lazy minted, where the metadata for each
             *                           of those NFTs is `${baseURIForTokens}/${tokenId}`.
             *  @param _data             Additional bytes data to be used at the discretion of the consumer of the contract.
             *  @return batchId          A unique integer identifier for the batch of NFTs lazy minted together.
             */
            function lazyMint(
                uint256 _amount,
                string calldata _baseURIForTokens,
                bytes calldata _data
            ) public virtual override returns (uint256 batchId) {
                if (!_canLazyMint()) {
                    revert("Not authorized");
                }
                if (_amount == 0) {
                    revert("0 amt");
                }
                uint256 startId = nextTokenIdToLazyMint;
                (nextTokenIdToLazyMint, batchId) = _batchMintMetadata(startId, _amount, _baseURIForTokens);
                emit TokensLazyMinted(startId, startId + _amount - 1, _baseURIForTokens, _data);
                return batchId;
            }
            /// @dev Returns whether lazy minting can be performed in the given execution context.
            function _canLazyMint() internal view virtual returns (bool);
        }
        // SPDX-License-Identifier: Apache 2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        import "./interface/IOperatorFilterToggle.sol";
        abstract contract OperatorFilterToggle is IOperatorFilterToggle {
            bool public operatorRestriction;
            function setOperatorRestriction(bool _restriction) external {
                require(_canSetOperatorRestriction(), "Not authorized to set operator restriction.");
                _setOperatorRestriction(_restriction);
            }
            function _setOperatorRestriction(bool _restriction) internal {
                operatorRestriction = _restriction;
                emit OperatorRestriction(_restriction);
            }
            function _canSetOperatorRestriction() internal virtual returns (bool);
        }
        // SPDX-License-Identifier: Apache 2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        import "./interface/IOperatorFilterRegistry.sol";
        import "./OperatorFilterToggle.sol";
        abstract contract OperatorFiltererUpgradeable is OperatorFilterToggle {
            error OperatorNotAllowed(address operator);
            IOperatorFilterRegistry constant OPERATOR_FILTER_REGISTRY =
                IOperatorFilterRegistry(0x000000000000AAeB6D7670E522A718067333cd4E);
            function __OperatorFilterer_init(address subscriptionOrRegistrantToCopy, bool subscribe) internal {
                // If an inheriting token contract is deployed to a network without the registry deployed, the modifier
                // will not revert, but the contract will need to be registered with the registry once it is deployed in
                // order for the modifier to filter addresses.
                _register(subscriptionOrRegistrantToCopy, subscribe);
            }
            modifier onlyAllowedOperator(address from) virtual {
                // Check registry code length to facilitate testing in environments without a deployed registry.
                if (operatorRestriction) {
                    if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {
                        // Allow spending tokens from addresses with balance
                        // Note that this still allows listings and marketplaces with escrow to transfer tokens if transferred
                        // from an EOA.
                        if (from == msg.sender) {
                            _;
                            return;
                        }
                        if (!OPERATOR_FILTER_REGISTRY.isOperatorAllowed(address(this), msg.sender)) {
                            revert OperatorNotAllowed(msg.sender);
                        }
                    }
                }
                _;
            }
            modifier onlyAllowedOperatorApproval(address operator) virtual {
                // Check registry code length to facilitate testing in environments without a deployed registry.
                if (operatorRestriction) {
                    if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {
                        if (!OPERATOR_FILTER_REGISTRY.isOperatorAllowed(address(this), operator)) {
                            revert OperatorNotAllowed(operator);
                        }
                    }
                }
                _;
            }
            function _register(address subscriptionOrRegistrantToCopy, bool subscribe) internal {
                // Is the registry deployed?
                if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {
                    // Is the subscription contract deployed?
                    if (address(subscriptionOrRegistrantToCopy).code.length > 0) {
                        // Do we want to subscribe?
                        if (subscribe) {
                            OPERATOR_FILTER_REGISTRY.registerAndSubscribe(address(this), subscriptionOrRegistrantToCopy);
                        } else {
                            OPERATOR_FILTER_REGISTRY.registerAndCopyEntries(address(this), subscriptionOrRegistrantToCopy);
                        }
                    } else {
                        OPERATOR_FILTER_REGISTRY.register(address(this));
                    }
                }
            }
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        import "./interface/IOwnable.sol";
        /**
         *  @title   Ownable
         *  @notice  Thirdweb's `Ownable` is a contract extension to be used with any base contract. It exposes functions for setting and reading
         *           who the 'owner' of the inheriting smart contract is, and lets the inheriting contract perform conditional logic that uses
         *           information about who the contract's owner is.
         */
        abstract contract Ownable is IOwnable {
            /// @dev Owner of the contract (purpose: OpenSea compatibility)
            address private _owner;
            /// @dev Reverts if caller is not the owner.
            modifier onlyOwner() {
                if (msg.sender != _owner) {
                    revert("Not authorized");
                }
                _;
            }
            /**
             *  @notice Returns the owner of the contract.
             */
            function owner() public view override returns (address) {
                return _owner;
            }
            /**
             *  @notice Lets an authorized wallet set a new owner for the contract.
             *  @param _newOwner The address to set as the new owner of the contract.
             */
            function setOwner(address _newOwner) external override {
                if (!_canSetOwner()) {
                    revert("Not authorized");
                }
                _setupOwner(_newOwner);
            }
            /// @dev Lets a contract admin set a new owner for the contract. The new owner must be a contract admin.
            function _setupOwner(address _newOwner) internal {
                address _prevOwner = _owner;
                _owner = _newOwner;
                emit OwnerUpdated(_prevOwner, _newOwner);
            }
            /// @dev Returns whether owner can be set in the given execution context.
            function _canSetOwner() internal view virtual returns (bool);
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        import "./interface/IPermissions.sol";
        import "../lib/TWStrings.sol";
        /**
         *  @title   Permissions
         *  @dev     This contracts provides extending-contracts with role-based access control mechanisms
         */
        contract Permissions is IPermissions {
            /// @dev Map from keccak256 hash of a role => a map from address => whether address has role.
            mapping(bytes32 => mapping(address => bool)) private _hasRole;
            /// @dev Map from keccak256 hash of a role to role admin. See {getRoleAdmin}.
            mapping(bytes32 => bytes32) private _getRoleAdmin;
            /// @dev Default admin role for all roles. Only accounts with this role can grant/revoke other roles.
            bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;
            /// @dev Modifier that checks if an account has the specified role; reverts otherwise.
            modifier onlyRole(bytes32 role) {
                _checkRole(role, msg.sender);
                _;
            }
            /**
             *  @notice         Checks whether an account has a particular role.
             *  @dev            Returns `true` if `account` has been granted `role`.
             *
             *  @param role     keccak256 hash of the role. e.g. keccak256("TRANSFER_ROLE")
             *  @param account  Address of the account for which the role is being checked.
             */
            function hasRole(bytes32 role, address account) public view override returns (bool) {
                return _hasRole[role][account];
            }
            /**
             *  @notice         Checks whether an account has a particular role;
             *                  role restrictions can be swtiched on and off.
             *
             *  @dev            Returns `true` if `account` has been granted `role`.
             *                  Role restrictions can be swtiched on and off:
             *                      - If address(0) has ROLE, then the ROLE restrictions
             *                        don't apply.
             *                      - If address(0) does not have ROLE, then the ROLE
             *                        restrictions will apply.
             *
             *  @param role     keccak256 hash of the role. e.g. keccak256("TRANSFER_ROLE")
             *  @param account  Address of the account for which the role is being checked.
             */
            function hasRoleWithSwitch(bytes32 role, address account) public view returns (bool) {
                if (!_hasRole[role][address(0)]) {
                    return _hasRole[role][account];
                }
                return true;
            }
            /**
             *  @notice         Returns the admin role that controls the specified role.
             *  @dev            See {grantRole} and {revokeRole}.
             *                  To change a role's admin, use {_setRoleAdmin}.
             *
             *  @param role     keccak256 hash of the role. e.g. keccak256("TRANSFER_ROLE")
             */
            function getRoleAdmin(bytes32 role) external view override returns (bytes32) {
                return _getRoleAdmin[role];
            }
            /**
             *  @notice         Grants a role to an account, if not previously granted.
             *  @dev            Caller must have admin role for the `role`.
             *                  Emits {RoleGranted Event}.
             *
             *  @param role     keccak256 hash of the role. e.g. keccak256("TRANSFER_ROLE")
             *  @param account  Address of the account to which the role is being granted.
             */
            function grantRole(bytes32 role, address account) public virtual override {
                _checkRole(_getRoleAdmin[role], msg.sender);
                if (_hasRole[role][account]) {
                    revert("Can only grant to non holders");
                }
                _setupRole(role, account);
            }
            /**
             *  @notice         Revokes role from an account.
             *  @dev            Caller must have admin role for the `role`.
             *                  Emits {RoleRevoked Event}.
             *
             *  @param role     keccak256 hash of the role. e.g. keccak256("TRANSFER_ROLE")
             *  @param account  Address of the account from which the role is being revoked.
             */
            function revokeRole(bytes32 role, address account) public virtual override {
                _checkRole(_getRoleAdmin[role], msg.sender);
                _revokeRole(role, account);
            }
            /**
             *  @notice         Revokes role from the account.
             *  @dev            Caller must have the `role`, with caller being the same as `account`.
             *                  Emits {RoleRevoked Event}.
             *
             *  @param role     keccak256 hash of the role. e.g. keccak256("TRANSFER_ROLE")
             *  @param account  Address of the account from which the role is being revoked.
             */
            function renounceRole(bytes32 role, address account) public virtual override {
                if (msg.sender != account) {
                    revert("Can only renounce for self");
                }
                _revokeRole(role, account);
            }
            /// @dev Sets `adminRole` as `role`'s admin role.
            function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
                bytes32 previousAdminRole = _getRoleAdmin[role];
                _getRoleAdmin[role] = adminRole;
                emit RoleAdminChanged(role, previousAdminRole, adminRole);
            }
            /// @dev Sets up `role` for `account`
            function _setupRole(bytes32 role, address account) internal virtual {
                _hasRole[role][account] = true;
                emit RoleGranted(role, account, msg.sender);
            }
            /// @dev Revokes `role` from `account`
            function _revokeRole(bytes32 role, address account) internal virtual {
                _checkRole(role, account);
                delete _hasRole[role][account];
                emit RoleRevoked(role, account, msg.sender);
            }
            /// @dev Checks `role` for `account`. Reverts with a message including the required role.
            function _checkRole(bytes32 role, address account) internal view virtual {
                if (!_hasRole[role][account]) {
                    revert(
                        string(
                            abi.encodePacked(
                                "Permissions: account ",
                                TWStrings.toHexString(uint160(account), 20),
                                " is missing role ",
                                TWStrings.toHexString(uint256(role), 32)
                            )
                        )
                    );
                }
            }
            /// @dev Checks `role` for `account`. Reverts with a message including the required role.
            function _checkRoleWithSwitch(bytes32 role, address account) internal view virtual {
                if (!hasRoleWithSwitch(role, account)) {
                    revert(
                        string(
                            abi.encodePacked(
                                "Permissions: account ",
                                TWStrings.toHexString(uint160(account), 20),
                                " is missing role ",
                                TWStrings.toHexString(uint256(role), 32)
                            )
                        )
                    );
                }
            }
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        import "./interface/IPermissionsEnumerable.sol";
        import "./Permissions.sol";
        /**
         *  @title   PermissionsEnumerable
         *  @dev     This contracts provides extending-contracts with role-based access control mechanisms.
         *           Also provides interfaces to view all members with a given role, and total count of members.
         */
        contract PermissionsEnumerable is IPermissionsEnumerable, Permissions {
            /**
             *  @notice A data structure to store data of members for a given role.
             *
             *  @param index    Current index in the list of accounts that have a role.
             *  @param members  map from index => address of account that has a role
             *  @param indexOf  map from address => index which the account has.
             */
            struct RoleMembers {
                uint256 index;
                mapping(uint256 => address) members;
                mapping(address => uint256) indexOf;
            }
            /// @dev map from keccak256 hash of a role to its members' data. See {RoleMembers}.
            mapping(bytes32 => RoleMembers) private roleMembers;
            /**
             *  @notice         Returns the role-member from a list of members for a role,
             *                  at a given index.
             *  @dev            Returns `member` who has `role`, at `index` of role-members list.
             *                  See struct {RoleMembers}, and mapping {roleMembers}
             *
             *  @param role     keccak256 hash of the role. e.g. keccak256("TRANSFER_ROLE")
             *  @param index    Index in list of current members for the role.
             *
             *  @return member  Address of account that has `role`
             */
            function getRoleMember(bytes32 role, uint256 index) external view override returns (address member) {
                uint256 currentIndex = roleMembers[role].index;
                uint256 check;
                for (uint256 i = 0; i < currentIndex; i += 1) {
                    if (roleMembers[role].members[i] != address(0)) {
                        if (check == index) {
                            member = roleMembers[role].members[i];
                            return member;
                        }
                        check += 1;
                    } else if (hasRole(role, address(0)) && i == roleMembers[role].indexOf[address(0)]) {
                        check += 1;
                    }
                }
            }
            /**
             *  @notice         Returns total number of accounts that have a role.
             *  @dev            Returns `count` of accounts that have `role`.
             *                  See struct {RoleMembers}, and mapping {roleMembers}
             *
             *  @param role     keccak256 hash of the role. e.g. keccak256("TRANSFER_ROLE")
             *
             *  @return count   Total number of accounts that have `role`
             */
            function getRoleMemberCount(bytes32 role) external view override returns (uint256 count) {
                uint256 currentIndex = roleMembers[role].index;
                for (uint256 i = 0; i < currentIndex; i += 1) {
                    if (roleMembers[role].members[i] != address(0)) {
                        count += 1;
                    }
                }
                if (hasRole(role, address(0))) {
                    count += 1;
                }
            }
            /// @dev Revokes `role` from `account`, and removes `account` from {roleMembers}
            ///      See {_removeMember}
            function _revokeRole(bytes32 role, address account) internal override {
                super._revokeRole(role, account);
                _removeMember(role, account);
            }
            /// @dev Grants `role` to `account`, and adds `account` to {roleMembers}
            ///      See {_addMember}
            function _setupRole(bytes32 role, address account) internal override {
                super._setupRole(role, account);
                _addMember(role, account);
            }
            /// @dev adds `account` to {roleMembers}, for `role`
            function _addMember(bytes32 role, address account) internal {
                uint256 idx = roleMembers[role].index;
                roleMembers[role].index += 1;
                roleMembers[role].members[idx] = account;
                roleMembers[role].indexOf[account] = idx;
            }
            /// @dev removes `account` from {roleMembers}, for `role`
            function _removeMember(bytes32 role, address account) internal {
                uint256 idx = roleMembers[role].indexOf[account];
                delete roleMembers[role].members[idx];
                delete roleMembers[role].indexOf[account];
            }
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        import "./interface/IPlatformFee.sol";
        /**
         *  @title   Platform Fee
         *  @notice  Thirdweb's `PlatformFee` is a contract extension to be used with any base contract. It exposes functions for setting and reading
         *           the recipient of platform fee and the platform fee basis points, and lets the inheriting contract perform conditional logic
         *           that uses information about platform fees, if desired.
         */
        abstract contract PlatformFee is IPlatformFee {
            /// @dev The address that receives all platform fees from all sales.
            address private platformFeeRecipient;
            /// @dev The % of primary sales collected as platform fees.
            uint16 private platformFeeBps;
            /// @dev Returns the platform fee recipient and bps.
            function getPlatformFeeInfo() public view override returns (address, uint16) {
                return (platformFeeRecipient, uint16(platformFeeBps));
            }
            /**
             *  @notice         Updates the platform fee recipient and bps.
             *  @dev            Caller should be authorized to set platform fee info.
             *                  See {_canSetPlatformFeeInfo}.
             *                  Emits {PlatformFeeInfoUpdated Event}; See {_setupPlatformFeeInfo}.
             *
             *  @param _platformFeeRecipient   Address to be set as new platformFeeRecipient.
             *  @param _platformFeeBps         Updated platformFeeBps.
             */
            function setPlatformFeeInfo(address _platformFeeRecipient, uint256 _platformFeeBps) external override {
                if (!_canSetPlatformFeeInfo()) {
                    revert("Not authorized");
                }
                _setupPlatformFeeInfo(_platformFeeRecipient, _platformFeeBps);
            }
            /// @dev Lets a contract admin update the platform fee recipient and bps
            function _setupPlatformFeeInfo(address _platformFeeRecipient, uint256 _platformFeeBps) internal {
                if (_platformFeeBps > 10_000) {
                    revert("Exceeds max bps");
                }
                platformFeeBps = uint16(_platformFeeBps);
                platformFeeRecipient = _platformFeeRecipient;
                emit PlatformFeeInfoUpdated(_platformFeeRecipient, _platformFeeBps);
            }
            /// @dev Returns whether platform fee info can be set in the given execution context.
            function _canSetPlatformFeeInfo() internal view virtual returns (bool);
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        import "./interface/IPrimarySale.sol";
        /**
         *  @title   Primary Sale
         *  @notice  Thirdweb's `PrimarySale` is a contract extension to be used with any base contract. It exposes functions for setting and reading
         *           the recipient of primary sales, and lets the inheriting contract perform conditional logic that uses information about
         *           primary sales, if desired.
         */
        abstract contract PrimarySale is IPrimarySale {
            /// @dev The address that receives all primary sales value.
            address private recipient;
            /// @dev Returns primary sale recipient address.
            function primarySaleRecipient() public view override returns (address) {
                return recipient;
            }
            /**
             *  @notice         Updates primary sale recipient.
             *  @dev            Caller should be authorized to set primary sales info.
             *                  See {_canSetPrimarySaleRecipient}.
             *                  Emits {PrimarySaleRecipientUpdated Event}; See {_setupPrimarySaleRecipient}.
             *
             *  @param _saleRecipient   Address to be set as new recipient of primary sales.
             */
            function setPrimarySaleRecipient(address _saleRecipient) external override {
                if (!_canSetPrimarySaleRecipient()) {
                    revert("Not authorized");
                }
                _setupPrimarySaleRecipient(_saleRecipient);
            }
            /// @dev Lets a contract admin set the recipient for all primary sales.
            function _setupPrimarySaleRecipient(address _saleRecipient) internal {
                recipient = _saleRecipient;
                emit PrimarySaleRecipientUpdated(_saleRecipient);
            }
            /// @dev Returns whether primary sale recipient can be set in the given execution context.
            function _canSetPrimarySaleRecipient() internal view virtual returns (bool);
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        import "./interface/IRoyalty.sol";
        /**
         *  @title   Royalty
         *  @notice  Thirdweb's `Royalty` is a contract extension to be used with any base contract. It exposes functions for setting and reading
         *           the recipient of royalty fee and the royalty fee basis points, and lets the inheriting contract perform conditional logic
         *           that uses information about royalty fees, if desired.
         *
         *  @dev     The `Royalty` contract is ERC2981 compliant.
         */
        abstract contract Royalty is IRoyalty {
            /// @dev The (default) address that receives all royalty value.
            address private royaltyRecipient;
            /// @dev The (default) % of a sale to take as royalty (in basis points).
            uint16 private royaltyBps;
            /// @dev Token ID => royalty recipient and bps for token
            mapping(uint256 => RoyaltyInfo) private royaltyInfoForToken;
            /**
             *  @notice   View royalty info for a given token and sale price.
             *  @dev      Returns royalty amount and recipient for `tokenId` and `salePrice`.
             *  @param tokenId          The tokenID of the NFT for which to query royalty info.
             *  @param salePrice        Sale price of the token.
             *
             *  @return receiver        Address of royalty recipient account.
             *  @return royaltyAmount   Royalty amount calculated at current royaltyBps value.
             */
            function royaltyInfo(uint256 tokenId, uint256 salePrice)
                external
                view
                virtual
                override
                returns (address receiver, uint256 royaltyAmount)
            {
                (address recipient, uint256 bps) = getRoyaltyInfoForToken(tokenId);
                receiver = recipient;
                royaltyAmount = (salePrice * bps) / 10_000;
            }
            /**
             *  @notice          View royalty info for a given token.
             *  @dev             Returns royalty recipient and bps for `_tokenId`.
             *  @param _tokenId  The tokenID of the NFT for which to query royalty info.
             */
            function getRoyaltyInfoForToken(uint256 _tokenId) public view override returns (address, uint16) {
                RoyaltyInfo memory royaltyForToken = royaltyInfoForToken[_tokenId];
                return
                    royaltyForToken.recipient == address(0)
                        ? (royaltyRecipient, uint16(royaltyBps))
                        : (royaltyForToken.recipient, uint16(royaltyForToken.bps));
            }
            /**
             *  @notice Returns the defualt royalty recipient and BPS for this contract's NFTs.
             */
            function getDefaultRoyaltyInfo() external view override returns (address, uint16) {
                return (royaltyRecipient, uint16(royaltyBps));
            }
            /**
             *  @notice         Updates default royalty recipient and bps.
             *  @dev            Caller should be authorized to set royalty info.
             *                  See {_canSetRoyaltyInfo}.
             *                  Emits {DefaultRoyalty Event}; See {_setupDefaultRoyaltyInfo}.
             *
             *  @param _royaltyRecipient   Address to be set as default royalty recipient.
             *  @param _royaltyBps         Updated royalty bps.
             */
            function setDefaultRoyaltyInfo(address _royaltyRecipient, uint256 _royaltyBps) external override {
                if (!_canSetRoyaltyInfo()) {
                    revert("Not authorized");
                }
                _setupDefaultRoyaltyInfo(_royaltyRecipient, _royaltyBps);
            }
            /// @dev Lets a contract admin update the default royalty recipient and bps.
            function _setupDefaultRoyaltyInfo(address _royaltyRecipient, uint256 _royaltyBps) internal {
                if (_royaltyBps > 10_000) {
                    revert("Exceeds max bps");
                }
                royaltyRecipient = _royaltyRecipient;
                royaltyBps = uint16(_royaltyBps);
                emit DefaultRoyalty(_royaltyRecipient, _royaltyBps);
            }
            /**
             *  @notice         Updates default royalty recipient and bps for a particular token.
             *  @dev            Sets royalty info for `_tokenId`. Caller should be authorized to set royalty info.
             *                  See {_canSetRoyaltyInfo}.
             *                  Emits {RoyaltyForToken Event}; See {_setupRoyaltyInfoForToken}.
             *
             *  @param _recipient   Address to be set as royalty recipient for given token Id.
             *  @param _bps         Updated royalty bps for the token Id.
             */
            function setRoyaltyInfoForToken(
                uint256 _tokenId,
                address _recipient,
                uint256 _bps
            ) external override {
                if (!_canSetRoyaltyInfo()) {
                    revert("Not authorized");
                }
                _setupRoyaltyInfoForToken(_tokenId, _recipient, _bps);
            }
            /// @dev Lets a contract admin set the royalty recipient and bps for a particular token Id.
            function _setupRoyaltyInfoForToken(
                uint256 _tokenId,
                address _recipient,
                uint256 _bps
            ) internal {
                if (_bps > 10_000) {
                    revert("Exceeds max bps");
                }
                royaltyInfoForToken[_tokenId] = RoyaltyInfo({ recipient: _recipient, bps: _bps });
                emit RoyaltyForToken(_tokenId, _recipient, _bps);
            }
            /// @dev Returns whether royalty info can be set in the given execution context.
            function _canSetRoyaltyInfo() internal view virtual returns (bool);
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        /**
         *  The interface `IClaimCondition` is written for thirdweb's 'Drop' contracts, which are distribution mechanisms for tokens.
         *
         *  A claim condition defines criteria under which accounts can mint tokens. Claim conditions can be overwritten
         *  or added to by the contract admin. At any moment, there is only one active claim condition.
         */
        interface IClaimCondition {
            /**
             *  @notice The criteria that make up a claim condition.
             *
             *  @param startTimestamp                 The unix timestamp after which the claim condition applies.
             *                                        The same claim condition applies until the `startTimestamp`
             *                                        of the next claim condition.
             *
             *  @param maxClaimableSupply             The maximum total number of tokens that can be claimed under
             *                                        the claim condition.
             *
             *  @param supplyClaimed                  At any given point, the number of tokens that have been claimed
             *                                        under the claim condition.
             *
             *  @param quantityLimitPerWallet         The maximum number of tokens that can be claimed by a wallet.
             *
             *  @param merkleRoot                     The allowlist of addresses that can claim tokens under the claim
             *                                        condition.
             *
             *  @param pricePerToken                  The price required to pay per token claimed.
             *
             *  @param currency                       The currency in which the `pricePerToken` must be paid.
             *
             *  @param metadata                       Claim condition metadata.
             */
            struct ClaimCondition {
                uint256 startTimestamp;
                uint256 maxClaimableSupply;
                uint256 supplyClaimed;
                uint256 quantityLimitPerWallet;
                bytes32 merkleRoot;
                uint256 pricePerToken;
                address currency;
                string metadata;
            }
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        import "./IClaimCondition.sol";
        /**
         *  The interface `IClaimConditionMultiPhase` is written for thirdweb's 'Drop' contracts, which are distribution mechanisms for tokens.
         *
         *  An authorized wallet can set a series of claim conditions, ordered by their respective `startTimestamp`.
         *  A claim condition defines criteria under which accounts can mint tokens. Claim conditions can be overwritten
         *  or added to by the contract admin. At any moment, there is only one active claim condition.
         */
        interface IClaimConditionMultiPhase is IClaimCondition {
            /**
             *  @notice The set of all claim conditions, at any given moment.
             *  Claim Phase ID = [currentStartId, currentStartId + length - 1];
             *
             *  @param currentStartId           The uid for the first claim condition amongst the current set of
             *                                  claim conditions. The uid for each next claim condition is one
             *                                  more than the previous claim condition's uid.
             *
             *  @param count                    The total number of phases / claim conditions in the list
             *                                  of claim conditions.
             *
             *  @param conditions                   The claim conditions at a given uid. Claim conditions
             *                                  are ordered in an ascending order by their `startTimestamp`.
             *
             *  @param supplyClaimedByWallet    Map from a claim condition uid and account to supply claimed by account.
             */
            struct ClaimConditionList {
                uint256 currentStartId;
                uint256 count;
                mapping(uint256 => ClaimCondition) conditions;
                mapping(uint256 => mapping(address => uint256)) supplyClaimedByWallet;
            }
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        /**
         *  Thirdweb's `ContractMetadata` is a contract extension for any base contracts. It lets you set a metadata URI
         *  for you contract.
         *
         *  Additionally, `ContractMetadata` is necessary for NFT contracts that want royalties to get distributed on OpenSea.
         */
        interface IContractMetadata {
            /// @dev Returns the metadata URI of the contract.
            function contractURI() external view returns (string memory);
            /**
             *  @dev Sets contract URI for the storefront-level metadata of the contract.
             *       Only module admin can call this function.
             */
            function setContractURI(string calldata _uri) external;
            /// @dev Emitted when the contract URI is updated.
            event ContractURIUpdated(string prevURI, string newURI);
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        /**
         *  Thirdweb's `DelayedReveal` is a contract extension for base NFT contracts. It lets you create batches of
         *  'delayed-reveal' NFTs. You can learn more about the usage of delayed reveal NFTs here - https://blog.thirdweb.com/delayed-reveal-nfts
         */
        interface IDelayedReveal {
            /// @dev Emitted when tokens are revealed.
            event TokenURIRevealed(uint256 indexed index, string revealedURI);
            /**
             *  @notice Reveals a batch of delayed reveal NFTs.
             *
             *  @param identifier The ID for the batch of delayed-reveal NFTs to reveal.
             *
             *  @param key        The key with which the base URI for the relevant batch of NFTs was encrypted.
             */
            function reveal(uint256 identifier, bytes calldata key) external returns (string memory revealedURI);
            /**
             *  @notice Performs XOR encryption/decryption.
             *
             *  @param data The data to encrypt. In the case of delayed-reveal NFTs, this is the "revealed" state
             *              base URI of the relevant batch of NFTs.
             *
             *  @param key  The key with which to encrypt data
             */
            function encryptDecrypt(bytes memory data, bytes calldata key) external pure returns (bytes memory result);
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        import "./IClaimConditionMultiPhase.sol";
        /**
         *  The interface `IDrop` is written for thirdweb's 'Drop' contracts, which are distribution mechanisms for tokens.
         *
         *  An authorized wallet can set a series of claim conditions, ordered by their respective `startTimestamp`.
         *  A claim condition defines criteria under which accounts can mint tokens. Claim conditions can be overwritten
         *  or added to by the contract admin. At any moment, there is only one active claim condition.
         */
        interface IDrop is IClaimConditionMultiPhase {
            /**
             *  @param proof Prood of concerned wallet's inclusion in an allowlist.
             *  @param quantityLimitPerWallet The total quantity of tokens the allowlisted wallet is eligible to claim over time.
             *  @param pricePerToken The price per token the allowlisted wallet must pay to claim tokens.
             *  @param currency The currency in which the allowlisted wallet must pay the price for claiming tokens.
             */
            struct AllowlistProof {
                bytes32[] proof;
                uint256 quantityLimitPerWallet;
                uint256 pricePerToken;
                address currency;
            }
            /// @notice Emitted when tokens are claimed via `claim`.
            event TokensClaimed(
                uint256 indexed claimConditionIndex,
                address indexed claimer,
                address indexed receiver,
                uint256 startTokenId,
                uint256 quantityClaimed
            );
            /// @notice Emitted when the contract's claim conditions are updated.
            event ClaimConditionsUpdated(ClaimCondition[] claimConditions, bool resetEligibility);
            /**
             *  @notice Lets an account claim a given quantity of NFTs.
             *
             *  @param receiver                       The receiver of the NFTs to claim.
             *  @param quantity                       The quantity of NFTs to claim.
             *  @param currency                       The currency in which to pay for the claim.
             *  @param pricePerToken                  The price per token to pay for the claim.
             *  @param allowlistProof                 The proof of the claimer's inclusion in the merkle root allowlist
             *                                        of the claim conditions that apply.
             *  @param data                           Arbitrary bytes data that can be leveraged in the implementation of this interface.
             */
            function claim(
                address receiver,
                uint256 quantity,
                address currency,
                uint256 pricePerToken,
                AllowlistProof calldata allowlistProof,
                bytes memory data
            ) external payable;
            /**
             *  @notice Lets a contract admin (account with `DEFAULT_ADMIN_ROLE`) set claim conditions.
             *
             *  @param phases                   Claim conditions in ascending order by `startTimestamp`.
             *
             *  @param resetClaimEligibility    Whether to honor the restrictions applied to wallets who have claimed tokens in the current conditions,
             *                                  in the new claim conditions being set.
             *
             */
            function setClaimConditions(ClaimCondition[] calldata phases, bool resetClaimEligibility) external;
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        /**
         *  Thirdweb's `LazyMint` is a contract extension for any base NFT contract. It lets you 'lazy mint' any number of NFTs
         *  at once. Here, 'lazy mint' means defining the metadata for particular tokenIds of your NFT contract, without actually
         *  minting a non-zero balance of NFTs of those tokenIds.
         */
        interface ILazyMint {
            /// @dev Emitted when tokens are lazy minted.
            event TokensLazyMinted(uint256 indexed startTokenId, uint256 endTokenId, string baseURI, bytes encryptedBaseURI);
            /**
             *  @notice Lazy mints a given amount of NFTs.
             *
             *  @param amount           The number of NFTs to lazy mint.
             *
             *  @param baseURIForTokens The base URI for the 'n' number of NFTs being lazy minted, where the metadata for each
             *                          of those NFTs is `${baseURIForTokens}/${tokenId}`.
             *
             *  @param extraData        Additional bytes data to be used at the discretion of the consumer of the contract.
             *
             *  @return batchId         A unique integer identifier for the batch of NFTs lazy minted together.
             */
            function lazyMint(
                uint256 amount,
                string calldata baseURIForTokens,
                bytes calldata extraData
            ) external returns (uint256 batchId);
        }
        // SPDX-License-Identifier: Apache 2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        interface IOperatorFilterRegistry {
            function isOperatorAllowed(address registrant, address operator) external view returns (bool);
            function register(address registrant) external;
            function registerAndSubscribe(address registrant, address subscription) external;
            function registerAndCopyEntries(address registrant, address registrantToCopy) external;
            function unregister(address addr) external;
            function updateOperator(
                address registrant,
                address operator,
                bool filtered
            ) external;
            function updateOperators(
                address registrant,
                address[] calldata operators,
                bool filtered
            ) external;
            function updateCodeHash(
                address registrant,
                bytes32 codehash,
                bool filtered
            ) external;
            function updateCodeHashes(
                address registrant,
                bytes32[] calldata codeHashes,
                bool filtered
            ) external;
            function subscribe(address registrant, address registrantToSubscribe) external;
            function unsubscribe(address registrant, bool copyExistingEntries) external;
            function subscriptionOf(address addr) external returns (address registrant);
            function subscribers(address registrant) external returns (address[] memory);
            function subscriberAt(address registrant, uint256 index) external returns (address);
            function copyEntriesOf(address registrant, address registrantToCopy) external;
            function isOperatorFiltered(address registrant, address operator) external returns (bool);
            function isCodeHashOfFiltered(address registrant, address operatorWithCode) external returns (bool);
            function isCodeHashFiltered(address registrant, bytes32 codeHash) external returns (bool);
            function filteredOperators(address addr) external returns (address[] memory);
            function filteredCodeHashes(address addr) external returns (bytes32[] memory);
            function filteredOperatorAt(address registrant, uint256 index) external returns (address);
            function filteredCodeHashAt(address registrant, uint256 index) external returns (bytes32);
            function isRegistered(address addr) external returns (bool);
            function codeHashOf(address addr) external returns (bytes32);
        }
        // SPDX-License-Identifier: Apache 2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        interface IOperatorFilterToggle {
            event OperatorRestriction(bool restriction);
            function operatorRestriction() external view returns (bool);
            function setOperatorRestriction(bool restriction) external;
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        /**
         *  Thirdweb's `Ownable` is a contract extension to be used with any base contract. It exposes functions for setting and reading
         *  who the 'owner' of the inheriting smart contract is, and lets the inheriting contract perform conditional logic that uses
         *  information about who the contract's owner is.
         */
        interface IOwnable {
            /// @dev Returns the owner of the contract.
            function owner() external view returns (address);
            /// @dev Lets a module admin set a new owner for the contract. The new owner must be a module admin.
            function setOwner(address _newOwner) external;
            /// @dev Emitted when a new Owner is set.
            event OwnerUpdated(address indexed prevOwner, address indexed newOwner);
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        /**
         * @dev External interface of AccessControl declared to support ERC165 detection.
         */
        interface IPermissions {
            /**
             * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
             *
             * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
             * {RoleAdminChanged} not being emitted signaling this.
             *
             * _Available since v3.1._
             */
            event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);
            /**
             * @dev Emitted when `account` is granted `role`.
             *
             * `sender` is the account that originated the contract call, an admin role
             * bearer except when using {AccessControl-_setupRole}.
             */
            event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);
            /**
             * @dev Emitted when `account` is revoked `role`.
             *
             * `sender` is the account that originated the contract call:
             *   - if using `revokeRole`, it is the admin role bearer
             *   - if using `renounceRole`, it is the role bearer (i.e. `account`)
             */
            event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);
            /**
             * @dev Returns `true` if `account` has been granted `role`.
             */
            function hasRole(bytes32 role, address account) external view returns (bool);
            /**
             * @dev Returns the admin role that controls `role`. See {grantRole} and
             * {revokeRole}.
             *
             * To change a role's admin, use {AccessControl-_setRoleAdmin}.
             */
            function getRoleAdmin(bytes32 role) external view returns (bytes32);
            /**
             * @dev Grants `role` to `account`.
             *
             * If `account` had not been already granted `role`, emits a {RoleGranted}
             * event.
             *
             * Requirements:
             *
             * - the caller must have ``role``'s admin role.
             */
            function grantRole(bytes32 role, address account) external;
            /**
             * @dev Revokes `role` from `account`.
             *
             * If `account` had been granted `role`, emits a {RoleRevoked} event.
             *
             * Requirements:
             *
             * - the caller must have ``role``'s admin role.
             */
            function revokeRole(bytes32 role, address account) external;
            /**
             * @dev Revokes `role` from the calling account.
             *
             * Roles are often managed via {grantRole} and {revokeRole}: this function's
             * purpose is to provide a mechanism for accounts to lose their privileges
             * if they are compromised (such as when a trusted device is misplaced).
             *
             * If the calling account had been granted `role`, emits a {RoleRevoked}
             * event.
             *
             * Requirements:
             *
             * - the caller must be `account`.
             */
            function renounceRole(bytes32 role, address account) external;
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        import "./IPermissions.sol";
        /**
         * @dev External interface of AccessControlEnumerable declared to support ERC165 detection.
         */
        interface IPermissionsEnumerable is IPermissions {
            /**
             * @dev Returns one of the accounts that have `role`. `index` must be a
             * value between 0 and {getRoleMemberCount}, non-inclusive.
             *
             * Role bearers are not sorted in any particular way, and their ordering may
             * change at any point.
             *
             * WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure
             * you perform all queries on the same block. See the following
             * [forum post](https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296)
             * for more information.
             */
            function getRoleMember(bytes32 role, uint256 index) external view returns (address);
            /**
             * @dev Returns the number of accounts that have `role`. Can be used
             * together with {getRoleMember} to enumerate all bearers of a role.
             */
            function getRoleMemberCount(bytes32 role) external view returns (uint256);
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        /**
         *  Thirdweb's `PlatformFee` is a contract extension to be used with any base contract. It exposes functions for setting and reading
         *  the recipient of platform fee and the platform fee basis points, and lets the inheriting contract perform conditional logic
         *  that uses information about platform fees, if desired.
         */
        interface IPlatformFee {
            /// @dev Returns the platform fee bps and recipient.
            function getPlatformFeeInfo() external view returns (address, uint16);
            /// @dev Lets a module admin update the fees on primary sales.
            function setPlatformFeeInfo(address _platformFeeRecipient, uint256 _platformFeeBps) external;
            /// @dev Emitted when fee on primary sales is updated.
            event PlatformFeeInfoUpdated(address indexed platformFeeRecipient, uint256 platformFeeBps);
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        /**
         *  Thirdweb's `Primary` is a contract extension to be used with any base contract. It exposes functions for setting and reading
         *  the recipient of primary sales, and lets the inheriting contract perform conditional logic that uses information about
         *  primary sales, if desired.
         */
        interface IPrimarySale {
            /// @dev The adress that receives all primary sales value.
            function primarySaleRecipient() external view returns (address);
            /// @dev Lets a module admin set the default recipient of all primary sales.
            function setPrimarySaleRecipient(address _saleRecipient) external;
            /// @dev Emitted when a new sale recipient is set.
            event PrimarySaleRecipientUpdated(address indexed recipient);
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        import "../../eip/interface/IERC2981.sol";
        /**
         *  Thirdweb's `Royalty` is a contract extension to be used with any base contract. It exposes functions for setting and reading
         *  the recipient of royalty fee and the royalty fee basis points, and lets the inheriting contract perform conditional logic
         *  that uses information about royalty fees, if desired.
         *
         *  The `Royalty` contract is ERC2981 compliant.
         */
        interface IRoyalty is IERC2981 {
            struct RoyaltyInfo {
                address recipient;
                uint256 bps;
            }
            /// @dev Returns the royalty recipient and fee bps.
            function getDefaultRoyaltyInfo() external view returns (address, uint16);
            /// @dev Lets a module admin update the royalty bps and recipient.
            function setDefaultRoyaltyInfo(address _royaltyRecipient, uint256 _royaltyBps) external;
            /// @dev Lets a module admin set the royalty recipient for a particular token Id.
            function setRoyaltyInfoForToken(
                uint256 tokenId,
                address recipient,
                uint256 bps
            ) external;
            /// @dev Returns the royalty recipient for a particular token Id.
            function getRoyaltyInfoForToken(uint256 tokenId) external view returns (address, uint16);
            /// @dev Emitted when royalty info is updated.
            event DefaultRoyalty(address indexed newRoyaltyRecipient, uint256 newRoyaltyBps);
            /// @dev Emitted when royalty recipient for tokenId is set
            event RoyaltyForToken(uint256 indexed tokenId, address indexed royaltyRecipient, uint256 royaltyBps);
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        interface IWETH {
            function deposit() external payable;
            function withdraw(uint256 amount) external;
            function transfer(address to, uint256 value) external returns (bool);
        }
        // SPDX-License-Identifier: Apache-2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        // Helper interfaces
        import { IWETH } from "../interfaces/IWETH.sol";
        import "../openzeppelin-presets/token/ERC20/utils/SafeERC20.sol";
        library CurrencyTransferLib {
            using SafeERC20 for IERC20;
            /// @dev The address interpreted as native token of the chain.
            address public constant NATIVE_TOKEN = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;
            /// @dev Transfers a given amount of currency.
            function transferCurrency(
                address _currency,
                address _from,
                address _to,
                uint256 _amount
            ) internal {
                if (_amount == 0) {
                    return;
                }
                if (_currency == NATIVE_TOKEN) {
                    safeTransferNativeToken(_to, _amount);
                } else {
                    safeTransferERC20(_currency, _from, _to, _amount);
                }
            }
            /// @dev Transfers a given amount of currency. (With native token wrapping)
            function transferCurrencyWithWrapper(
                address _currency,
                address _from,
                address _to,
                uint256 _amount,
                address _nativeTokenWrapper
            ) internal {
                if (_amount == 0) {
                    return;
                }
                if (_currency == NATIVE_TOKEN) {
                    if (_from == address(this)) {
                        // withdraw from weth then transfer withdrawn native token to recipient
                        IWETH(_nativeTokenWrapper).withdraw(_amount);
                        safeTransferNativeTokenWithWrapper(_to, _amount, _nativeTokenWrapper);
                    } else if (_to == address(this)) {
                        // store native currency in weth
                        require(_amount == msg.value, "msg.value != amount");
                        IWETH(_nativeTokenWrapper).deposit{ value: _amount }();
                    } else {
                        safeTransferNativeTokenWithWrapper(_to, _amount, _nativeTokenWrapper);
                    }
                } else {
                    safeTransferERC20(_currency, _from, _to, _amount);
                }
            }
            /// @dev Transfer `amount` of ERC20 token from `from` to `to`.
            function safeTransferERC20(
                address _currency,
                address _from,
                address _to,
                uint256 _amount
            ) internal {
                if (_from == _to) {
                    return;
                }
                if (_from == address(this)) {
                    IERC20(_currency).safeTransfer(_to, _amount);
                } else {
                    IERC20(_currency).safeTransferFrom(_from, _to, _amount);
                }
            }
            /// @dev Transfers `amount` of native token to `to`.
            function safeTransferNativeToken(address to, uint256 value) internal {
                // solhint-disable avoid-low-level-calls
                // slither-disable-next-line low-level-calls
                (bool success, ) = to.call{ value: value }("");
                require(success, "native token transfer failed");
            }
            /// @dev Transfers `amount` of native token to `to`. (With native token wrapping)
            function safeTransferNativeTokenWithWrapper(
                address to,
                uint256 value,
                address _nativeTokenWrapper
            ) internal {
                // solhint-disable avoid-low-level-calls
                // slither-disable-next-line low-level-calls
                (bool success, ) = to.call{ value: value }("");
                if (!success) {
                    IWETH(_nativeTokenWrapper).deposit{ value: value }();
                    IERC20(_nativeTokenWrapper).safeTransfer(to, value);
                }
            }
        }
        // SPDX-License-Identifier: Apache 2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        /**
         * @dev These functions deal with verification of Merkle Trees proofs.
         *
         * The proofs can be generated using the JavaScript library
         * https://github.com/miguelmota/merkletreejs[merkletreejs].
         * Note: the hashing algorithm should be keccak256 and pair sorting should be enabled.
         *
         * See `test/utils/cryptography/MerkleProof.test.js` for some examples.
         *
         * Source: https://github.com/ensdomains/governance/blob/master/contracts/MerkleProof.sol
         */
        library MerkleProof {
            /**
             * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree
             * defined by `root`. For this, a `proof` must be provided, containing
             * sibling hashes on the branch from the leaf to the root of the tree. Each
             * pair of leaves and each pair of pre-images are assumed to be sorted.
             */
            function verify(
                bytes32[] memory proof,
                bytes32 root,
                bytes32 leaf
            ) internal pure returns (bool, uint256) {
                bytes32 computedHash = leaf;
                uint256 index = 0;
                for (uint256 i = 0; i < proof.length; i++) {
                    index *= 2;
                    bytes32 proofElement = proof[i];
                    if (computedHash <= proofElement) {
                        // Hash(current computed hash + current element of the proof)
                        computedHash = keccak256(abi.encodePacked(computedHash, proofElement));
                    } else {
                        // Hash(current element of the proof + current computed hash)
                        computedHash = keccak256(abi.encodePacked(proofElement, computedHash));
                        index += 1;
                    }
                }
                // Check if the computed hash (root) is equal to the provided root
                return (computedHash == root, index);
            }
        }
        // SPDX-License-Identifier: Apache 2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        /**
         * @dev Collection of functions related to the address type
         */
        library TWAddress {
            /**
             * @dev Returns true if `account` is a contract.
             *
             * [IMPORTANT]
             * ====
             * It is unsafe to assume that an address for which this function returns
             * false is an externally-owned account (EOA) and not a contract.
             *
             * Among others, `isContract` will return false for the following
             * types of addresses:
             *
             *  - an externally-owned account
             *  - a contract in construction
             *  - an address where a contract will be created
             *  - an address where a contract lived, but was destroyed
             * ====
             *
             * [IMPORTANT]
             * ====
             * You shouldn't rely on `isContract` to protect against flash loan attacks!
             *
             * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
             * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
             * constructor.
             * ====
             */
            function isContract(address account) internal view returns (bool) {
                // This method relies on extcodesize/address.code.length, which returns 0
                // for contracts in construction, since the code is only stored at the end
                // of the constructor execution.
                return account.code.length > 0;
            }
            /**
             * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
             * `recipient`, forwarding all available gas and reverting on errors.
             *
             * [EIP1884](https://eips.ethereum.org/EIPS/eip-1884) increases the gas cost
             * of certain opcodes, possibly making contracts go over the 2300 gas limit
             * imposed by `transfer`, making them unable to receive funds via
             * `transfer`. {sendValue} removes this limitation.
             *
             * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
             *
             * IMPORTANT: because control is transferred to `recipient`, care must be
             * taken to not create reentrancy vulnerabilities. Consider using
             * {ReentrancyGuard} or the
             * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
             */
            function sendValue(address payable recipient, uint256 amount) internal {
                require(address(this).balance >= amount, "Address: insufficient balance");
                (bool success, ) = recipient.call{ value: amount }("");
                require(success, "Address: unable to send value, recipient may have reverted");
            }
            /**
             * @dev Performs a Solidity function call using a low level `call`. A
             * plain `call` is an unsafe replacement for a function call: use this
             * function instead.
             *
             * If `target` reverts with a revert reason, it is bubbled up by this
             * function (like regular Solidity function calls).
             *
             * Returns the raw returned data. To convert to the expected return value,
             * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
             *
             * Requirements:
             *
             * - `target` must be a contract.
             * - calling `target` with `data` must not revert.
             *
             * _Available since v3.1._
             */
            function functionCall(address target, bytes memory data) internal returns (bytes memory) {
                return functionCall(target, data, "Address: low-level call failed");
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
             * `errorMessage` as a fallback revert reason when `target` reverts.
             *
             * _Available since v3.1._
             */
            function functionCall(
                address target,
                bytes memory data,
                string memory errorMessage
            ) internal returns (bytes memory) {
                return functionCallWithValue(target, data, 0, errorMessage);
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
             * but also transferring `value` wei to `target`.
             *
             * Requirements:
             *
             * - the calling contract must have an ETH balance of at least `value`.
             * - the called Solidity function must be `payable`.
             *
             * _Available since v3.1._
             */
            function functionCallWithValue(
                address target,
                bytes memory data,
                uint256 value
            ) internal returns (bytes memory) {
                return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
            }
            /**
             * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
             * with `errorMessage` as a fallback revert reason when `target` reverts.
             *
             * _Available since v3.1._
             */
            function functionCallWithValue(
                address target,
                bytes memory data,
                uint256 value,
                string memory errorMessage
            ) internal returns (bytes memory) {
                require(address(this).balance >= value, "Address: insufficient balance for call");
                require(isContract(target), "Address: call to non-contract");
                (bool success, bytes memory returndata) = target.call{ value: value }(data);
                return verifyCallResult(success, returndata, errorMessage);
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
             * but performing a static call.
             *
             * _Available since v3.3._
             */
            function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
                return functionStaticCall(target, data, "Address: low-level static call failed");
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
             * but performing a static call.
             *
             * _Available since v3.3._
             */
            function functionStaticCall(
                address target,
                bytes memory data,
                string memory errorMessage
            ) internal view returns (bytes memory) {
                require(isContract(target), "Address: static call to non-contract");
                (bool success, bytes memory returndata) = target.staticcall(data);
                return verifyCallResult(success, returndata, errorMessage);
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
             * but performing a delegate call.
             *
             * _Available since v3.4._
             */
            function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
                return functionDelegateCall(target, data, "Address: low-level delegate call failed");
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
             * but performing a delegate call.
             *
             * _Available since v3.4._
             */
            function functionDelegateCall(
                address target,
                bytes memory data,
                string memory errorMessage
            ) internal returns (bytes memory) {
                require(isContract(target), "Address: delegate call to non-contract");
                (bool success, bytes memory returndata) = target.delegatecall(data);
                return verifyCallResult(success, returndata, errorMessage);
            }
            /**
             * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
             * revert reason using the provided one.
             *
             * _Available since v4.3._
             */
            function verifyCallResult(
                bool success,
                bytes memory returndata,
                string memory errorMessage
            ) internal pure returns (bytes memory) {
                if (success) {
                    return returndata;
                } else {
                    // Look for revert reason and bubble it up if present
                    if (returndata.length > 0) {
                        // The easiest way to bubble the revert reason is using memory via assembly
                        assembly {
                            let returndata_size := mload(returndata)
                            revert(add(32, returndata), returndata_size)
                        }
                    } else {
                        revert(errorMessage);
                    }
                }
            }
        }
        // SPDX-License-Identifier: Apache 2.0
        pragma solidity ^0.8.0;
        /// @author thirdweb
        /**
         * @dev String operations.
         */
        library TWStrings {
            bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";
            /**
             * @dev Converts a `uint256` to its ASCII `string` decimal representation.
             */
            function toString(uint256 value) internal pure returns (string memory) {
                // Inspired by OraclizeAPI's implementation - MIT licence
                // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
                if (value == 0) {
                    return "0";
                }
                uint256 temp = value;
                uint256 digits;
                while (temp != 0) {
                    digits++;
                    temp /= 10;
                }
                bytes memory buffer = new bytes(digits);
                while (value != 0) {
                    digits -= 1;
                    buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
                    value /= 10;
                }
                return string(buffer);
            }
            /**
             * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
             */
            function toHexString(uint256 value) internal pure returns (string memory) {
                if (value == 0) {
                    return "0x00";
                }
                uint256 temp = value;
                uint256 length = 0;
                while (temp != 0) {
                    length++;
                    temp >>= 8;
                }
                return toHexString(value, length);
            }
            /**
             * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
             */
            function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
                bytes memory buffer = new bytes(2 * length + 2);
                buffer[0] = "0";
                buffer[1] = "x";
                for (uint256 i = 2 * length + 1; i > 1; --i) {
                    buffer[i] = _HEX_SYMBOLS[value & 0xf];
                    value >>= 4;
                }
                require(value == 0, "Strings: hex length insufficient");
                return string(buffer);
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts v4.4.0 (metatx/ERC2771Context.sol)
        pragma solidity ^0.8.11;
        import "@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol";
        import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
        /**
         * @dev Context variant with ERC2771 support.
         */
        abstract contract ERC2771ContextUpgradeable is Initializable, ContextUpgradeable {
            mapping(address => bool) private _trustedForwarder;
            function __ERC2771Context_init(address[] memory trustedForwarder) internal onlyInitializing {
                __Context_init_unchained();
                __ERC2771Context_init_unchained(trustedForwarder);
            }
            function __ERC2771Context_init_unchained(address[] memory trustedForwarder) internal onlyInitializing {
                for (uint256 i = 0; i < trustedForwarder.length; i++) {
                    _trustedForwarder[trustedForwarder[i]] = true;
                }
            }
            function isTrustedForwarder(address forwarder) public view virtual returns (bool) {
                return _trustedForwarder[forwarder];
            }
            function _msgSender() internal view virtual override returns (address sender) {
                if (isTrustedForwarder(msg.sender)) {
                    // The assembly code is more direct than the Solidity version using `abi.decode`.
                    assembly {
                        sender := shr(96, calldataload(sub(calldatasize(), 20)))
                    }
                } else {
                    return super._msgSender();
                }
            }
            function _msgData() internal view virtual override returns (bytes calldata) {
                if (isTrustedForwarder(msg.sender)) {
                    return msg.data[:msg.data.length - 20];
                } else {
                    return super._msgData();
                }
            }
            uint256[49] private __gap;
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts v4.4.1 (token/ERC20/utils/SafeERC20.sol)
        pragma solidity ^0.8.0;
        import "../../../../eip/interface/IERC20.sol";
        import "../../../../lib/TWAddress.sol";
        /**
         * @title SafeERC20
         * @dev Wrappers around ERC20 operations that throw on failure (when the token
         * contract returns false). Tokens that return no value (and instead revert or
         * throw on failure) are also supported, non-reverting calls are assumed to be
         * successful.
         * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
         * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
         */
        library SafeERC20 {
            using TWAddress for address;
            function safeTransfer(
                IERC20 token,
                address to,
                uint256 value
            ) internal {
                _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
            }
            function safeTransferFrom(
                IERC20 token,
                address from,
                address to,
                uint256 value
            ) internal {
                _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
            }
            /**
             * @dev Deprecated. This function has issues similar to the ones found in
             * {IERC20-approve}, and its usage is discouraged.
             *
             * Whenever possible, use {safeIncreaseAllowance} and
             * {safeDecreaseAllowance} instead.
             */
            function safeApprove(
                IERC20 token,
                address spender,
                uint256 value
            ) internal {
                // safeApprove should only be called when setting an initial allowance,
                // or when resetting it to zero. To increase and decrease it, use
                // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
                require(
                    (value == 0) || (token.allowance(address(this), spender) == 0),
                    "SafeERC20: approve from non-zero to non-zero allowance"
                );
                _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
            }
            function safeIncreaseAllowance(
                IERC20 token,
                address spender,
                uint256 value
            ) internal {
                uint256 newAllowance = token.allowance(address(this), spender) + value;
                _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
            }
            function safeDecreaseAllowance(
                IERC20 token,
                address spender,
                uint256 value
            ) internal {
                unchecked {
                    uint256 oldAllowance = token.allowance(address(this), spender);
                    require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
                    uint256 newAllowance = oldAllowance - value;
                    _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
                }
            }
            /**
             * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
             * on the return value: the return value is optional (but if data is returned, it must not be false).
             * @param token The token targeted by the call.
             * @param data The call data (encoded using abi.encode or one of its variants).
             */
            function _callOptionalReturn(IERC20 token, bytes memory data) private {
                // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
                // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
                // the target address contains contract code and also asserts for success in the low-level call.
                bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
                if (returndata.length > 0) {
                    // Return data is optional
                    require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
                }
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.6.0) (interfaces/IERC2981.sol)
        pragma solidity ^0.8.0;
        import "../utils/introspection/IERC165Upgradeable.sol";
        /**
         * @dev Interface for the NFT Royalty Standard.
         *
         * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal
         * support for royalty payments across all NFT marketplaces and ecosystem participants.
         *
         * _Available since v4.5._
         */
        interface IERC2981Upgradeable is IERC165Upgradeable {
            /**
             * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of
             * exchange. The royalty amount is denominated and should be paid in that same unit of exchange.
             */
            function royaltyInfo(uint256 tokenId, uint256 salePrice)
                external
                view
                returns (address receiver, uint256 royaltyAmount);
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.7.0) (proxy/utils/Initializable.sol)
        pragma solidity ^0.8.2;
        import "../../utils/AddressUpgradeable.sol";
        /**
         * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
         * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
         * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
         * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
         *
         * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
         * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
         * case an upgrade adds a module that needs to be initialized.
         *
         * For example:
         *
         * [.hljs-theme-light.nopadding]
         * ```
         * contract MyToken is ERC20Upgradeable {
         *     function initialize() initializer public {
         *         __ERC20_init("MyToken", "MTK");
         *     }
         * }
         * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
         *     function initializeV2() reinitializer(2) public {
         *         __ERC20Permit_init("MyToken");
         *     }
         * }
         * ```
         *
         * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
         * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
         *
         * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
         * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
         *
         * [CAUTION]
         * ====
         * Avoid leaving a contract uninitialized.
         *
         * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
         * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
         * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
         *
         * [.hljs-theme-light.nopadding]
         * ```
         * /// @custom:oz-upgrades-unsafe-allow constructor
         * constructor() {
         *     _disableInitializers();
         * }
         * ```
         * ====
         */
        abstract contract Initializable {
            /**
             * @dev Indicates that the contract has been initialized.
             * @custom:oz-retyped-from bool
             */
            uint8 private _initialized;
            /**
             * @dev Indicates that the contract is in the process of being initialized.
             */
            bool private _initializing;
            /**
             * @dev Triggered when the contract has been initialized or reinitialized.
             */
            event Initialized(uint8 version);
            /**
             * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
             * `onlyInitializing` functions can be used to initialize parent contracts. Equivalent to `reinitializer(1)`.
             */
            modifier initializer() {
                bool isTopLevelCall = !_initializing;
                require(
                    (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
                    "Initializable: contract is already initialized"
                );
                _initialized = 1;
                if (isTopLevelCall) {
                    _initializing = true;
                }
                _;
                if (isTopLevelCall) {
                    _initializing = false;
                    emit Initialized(1);
                }
            }
            /**
             * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
             * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
             * used to initialize parent contracts.
             *
             * `initializer` is equivalent to `reinitializer(1)`, so a reinitializer may be used after the original
             * initialization step. This is essential to configure modules that are added through upgrades and that require
             * initialization.
             *
             * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
             * a contract, executing them in the right order is up to the developer or operator.
             */
            modifier reinitializer(uint8 version) {
                require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
                _initialized = version;
                _initializing = true;
                _;
                _initializing = false;
                emit Initialized(version);
            }
            /**
             * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
             * {initializer} and {reinitializer} modifiers, directly or indirectly.
             */
            modifier onlyInitializing() {
                require(_initializing, "Initializable: contract is not initializing");
                _;
            }
            /**
             * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
             * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
             * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
             * through proxies.
             */
            function _disableInitializers() internal virtual {
                require(!_initializing, "Initializable: contract is initializing");
                if (_initialized < type(uint8).max) {
                    _initialized = type(uint8).max;
                    emit Initialized(type(uint8).max);
                }
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)
        pragma solidity ^0.8.0;
        /**
         * @title ERC721 token receiver interface
         * @dev Interface for any contract that wants to support safeTransfers
         * from ERC721 asset contracts.
         */
        interface IERC721ReceiverUpgradeable {
            /**
             * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
             * by `operator` from `from`, this function is called.
             *
             * It must return its Solidity selector to confirm the token transfer.
             * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
             *
             * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.
             */
            function onERC721Received(
                address operator,
                address from,
                uint256 tokenId,
                bytes calldata data
            ) external returns (bytes4);
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/IERC721.sol)
        pragma solidity ^0.8.0;
        import "../../utils/introspection/IERC165Upgradeable.sol";
        /**
         * @dev Required interface of an ERC721 compliant contract.
         */
        interface IERC721Upgradeable is IERC165Upgradeable {
            /**
             * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
             */
            event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
            /**
             * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
             */
            event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
            /**
             * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
             */
            event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
            /**
             * @dev Returns the number of tokens in ``owner``'s account.
             */
            function balanceOf(address owner) external view returns (uint256 balance);
            /**
             * @dev Returns the owner of the `tokenId` token.
             *
             * Requirements:
             *
             * - `tokenId` must exist.
             */
            function ownerOf(uint256 tokenId) external view returns (address owner);
            /**
             * @dev Safely transfers `tokenId` token from `from` to `to`.
             *
             * Requirements:
             *
             * - `from` cannot be the zero address.
             * - `to` cannot be the zero address.
             * - `tokenId` token must exist and be owned by `from`.
             * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
             * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
             *
             * Emits a {Transfer} event.
             */
            function safeTransferFrom(
                address from,
                address to,
                uint256 tokenId,
                bytes calldata data
            ) external;
            /**
             * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
             * are aware of the ERC721 protocol to prevent tokens from being forever locked.
             *
             * Requirements:
             *
             * - `from` cannot be the zero address.
             * - `to` cannot be the zero address.
             * - `tokenId` token must exist and be owned by `from`.
             * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
             * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
             *
             * Emits a {Transfer} event.
             */
            function safeTransferFrom(
                address from,
                address to,
                uint256 tokenId
            ) external;
            /**
             * @dev Transfers `tokenId` token from `from` to `to`.
             *
             * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
             *
             * Requirements:
             *
             * - `from` cannot be the zero address.
             * - `to` cannot be the zero address.
             * - `tokenId` token must be owned by `from`.
             * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
             *
             * Emits a {Transfer} event.
             */
            function transferFrom(
                address from,
                address to,
                uint256 tokenId
            ) external;
            /**
             * @dev Gives permission to `to` to transfer `tokenId` token to another account.
             * The approval is cleared when the token is transferred.
             *
             * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
             *
             * Requirements:
             *
             * - The caller must own the token or be an approved operator.
             * - `tokenId` must exist.
             *
             * Emits an {Approval} event.
             */
            function approve(address to, uint256 tokenId) external;
            /**
             * @dev Approve or remove `operator` as an operator for the caller.
             * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
             *
             * Requirements:
             *
             * - The `operator` cannot be the caller.
             *
             * Emits an {ApprovalForAll} event.
             */
            function setApprovalForAll(address operator, bool _approved) external;
            /**
             * @dev Returns the account approved for `tokenId` token.
             *
             * Requirements:
             *
             * - `tokenId` must exist.
             */
            function getApproved(uint256 tokenId) external view returns (address operator);
            /**
             * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
             *
             * See {setApprovalForAll}
             */
            function isApprovedForAll(address owner, address operator) external view returns (bool);
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)
        pragma solidity ^0.8.0;
        import "../IERC721Upgradeable.sol";
        /**
         * @title ERC-721 Non-Fungible Token Standard, optional metadata extension
         * @dev See https://eips.ethereum.org/EIPS/eip-721
         */
        interface IERC721MetadataUpgradeable is IERC721Upgradeable {
            /**
             * @dev Returns the token collection name.
             */
            function name() external view returns (string memory);
            /**
             * @dev Returns the token collection symbol.
             */
            function symbol() external view returns (string memory);
            /**
             * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
             */
            function tokenURI(uint256 tokenId) external view returns (string memory);
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)
        pragma solidity ^0.8.1;
        /**
         * @dev Collection of functions related to the address type
         */
        library AddressUpgradeable {
            /**
             * @dev Returns true if `account` is a contract.
             *
             * [IMPORTANT]
             * ====
             * It is unsafe to assume that an address for which this function returns
             * false is an externally-owned account (EOA) and not a contract.
             *
             * Among others, `isContract` will return false for the following
             * types of addresses:
             *
             *  - an externally-owned account
             *  - a contract in construction
             *  - an address where a contract will be created
             *  - an address where a contract lived, but was destroyed
             * ====
             *
             * [IMPORTANT]
             * ====
             * You shouldn't rely on `isContract` to protect against flash loan attacks!
             *
             * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
             * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
             * constructor.
             * ====
             */
            function isContract(address account) internal view returns (bool) {
                // This method relies on extcodesize/address.code.length, which returns 0
                // for contracts in construction, since the code is only stored at the end
                // of the constructor execution.
                return account.code.length > 0;
            }
            /**
             * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
             * `recipient`, forwarding all available gas and reverting on errors.
             *
             * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
             * of certain opcodes, possibly making contracts go over the 2300 gas limit
             * imposed by `transfer`, making them unable to receive funds via
             * `transfer`. {sendValue} removes this limitation.
             *
             * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
             *
             * IMPORTANT: because control is transferred to `recipient`, care must be
             * taken to not create reentrancy vulnerabilities. Consider using
             * {ReentrancyGuard} or the
             * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
             */
            function sendValue(address payable recipient, uint256 amount) internal {
                require(address(this).balance >= amount, "Address: insufficient balance");
                (bool success, ) = recipient.call{value: amount}("");
                require(success, "Address: unable to send value, recipient may have reverted");
            }
            /**
             * @dev Performs a Solidity function call using a low level `call`. A
             * plain `call` is an unsafe replacement for a function call: use this
             * function instead.
             *
             * If `target` reverts with a revert reason, it is bubbled up by this
             * function (like regular Solidity function calls).
             *
             * Returns the raw returned data. To convert to the expected return value,
             * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
             *
             * Requirements:
             *
             * - `target` must be a contract.
             * - calling `target` with `data` must not revert.
             *
             * _Available since v3.1._
             */
            function functionCall(address target, bytes memory data) internal returns (bytes memory) {
                return functionCall(target, data, "Address: low-level call failed");
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
             * `errorMessage` as a fallback revert reason when `target` reverts.
             *
             * _Available since v3.1._
             */
            function functionCall(
                address target,
                bytes memory data,
                string memory errorMessage
            ) internal returns (bytes memory) {
                return functionCallWithValue(target, data, 0, errorMessage);
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
             * but also transferring `value` wei to `target`.
             *
             * Requirements:
             *
             * - the calling contract must have an ETH balance of at least `value`.
             * - the called Solidity function must be `payable`.
             *
             * _Available since v3.1._
             */
            function functionCallWithValue(
                address target,
                bytes memory data,
                uint256 value
            ) internal returns (bytes memory) {
                return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
            }
            /**
             * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
             * with `errorMessage` as a fallback revert reason when `target` reverts.
             *
             * _Available since v3.1._
             */
            function functionCallWithValue(
                address target,
                bytes memory data,
                uint256 value,
                string memory errorMessage
            ) internal returns (bytes memory) {
                require(address(this).balance >= value, "Address: insufficient balance for call");
                require(isContract(target), "Address: call to non-contract");
                (bool success, bytes memory returndata) = target.call{value: value}(data);
                return verifyCallResult(success, returndata, errorMessage);
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
             * but performing a static call.
             *
             * _Available since v3.3._
             */
            function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
                return functionStaticCall(target, data, "Address: low-level static call failed");
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
             * but performing a static call.
             *
             * _Available since v3.3._
             */
            function functionStaticCall(
                address target,
                bytes memory data,
                string memory errorMessage
            ) internal view returns (bytes memory) {
                require(isContract(target), "Address: static call to non-contract");
                (bool success, bytes memory returndata) = target.staticcall(data);
                return verifyCallResult(success, returndata, errorMessage);
            }
            /**
             * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
             * revert reason using the provided one.
             *
             * _Available since v4.3._
             */
            function verifyCallResult(
                bool success,
                bytes memory returndata,
                string memory errorMessage
            ) internal pure returns (bytes memory) {
                if (success) {
                    return returndata;
                } else {
                    // Look for revert reason and bubble it up if present
                    if (returndata.length > 0) {
                        // The easiest way to bubble the revert reason is using memory via assembly
                        /// @solidity memory-safe-assembly
                        assembly {
                            let returndata_size := mload(returndata)
                            revert(add(32, returndata), returndata_size)
                        }
                    } else {
                        revert(errorMessage);
                    }
                }
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
        pragma solidity ^0.8.0;
        import "../proxy/utils/Initializable.sol";
        /**
         * @dev Provides information about the current execution context, including the
         * sender of the transaction and its data. While these are generally available
         * via msg.sender and msg.data, they should not be accessed in such a direct
         * manner, since when dealing with meta-transactions the account sending and
         * paying for execution may not be the actual sender (as far as an application
         * is concerned).
         *
         * This contract is only required for intermediate, library-like contracts.
         */
        abstract contract ContextUpgradeable is Initializable {
            function __Context_init() internal onlyInitializing {
            }
            function __Context_init_unchained() internal onlyInitializing {
            }
            function _msgSender() internal view virtual returns (address) {
                return msg.sender;
            }
            function _msgData() internal view virtual returns (bytes calldata) {
                return msg.data;
            }
            /**
             * @dev This empty reserved space is put in place to allow future versions to add new
             * variables without shifting down storage in the inheritance chain.
             * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
             */
            uint256[50] private __gap;
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.5.0) (utils/Multicall.sol)
        pragma solidity ^0.8.0;
        import "./AddressUpgradeable.sol";
        import "../proxy/utils/Initializable.sol";
        /**
         * @dev Provides a function to batch together multiple calls in a single external call.
         *
         * _Available since v4.1._
         */
        abstract contract MulticallUpgradeable is Initializable {
            function __Multicall_init() internal onlyInitializing {
            }
            function __Multicall_init_unchained() internal onlyInitializing {
            }
            /**
             * @dev Receives and executes a batch of function calls on this contract.
             */
            function multicall(bytes[] calldata data) external virtual returns (bytes[] memory results) {
                results = new bytes[](data.length);
                for (uint256 i = 0; i < data.length; i++) {
                    results[i] = _functionDelegateCall(address(this), data[i]);
                }
                return results;
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
             * but performing a delegate call.
             *
             * _Available since v3.4._
             */
            function _functionDelegateCall(address target, bytes memory data) private returns (bytes memory) {
                require(AddressUpgradeable.isContract(target), "Address: delegate call to non-contract");
                // solhint-disable-next-line avoid-low-level-calls
                (bool success, bytes memory returndata) = target.delegatecall(data);
                return AddressUpgradeable.verifyCallResult(success, returndata, "Address: low-level delegate call failed");
            }
            /**
             * @dev This empty reserved space is put in place to allow future versions to add new
             * variables without shifting down storage in the inheritance chain.
             * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
             */
            uint256[50] private __gap;
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.7.0) (utils/Strings.sol)
        pragma solidity ^0.8.0;
        /**
         * @dev String operations.
         */
        library StringsUpgradeable {
            bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";
            uint8 private constant _ADDRESS_LENGTH = 20;
            /**
             * @dev Converts a `uint256` to its ASCII `string` decimal representation.
             */
            function toString(uint256 value) internal pure returns (string memory) {
                // Inspired by OraclizeAPI's implementation - MIT licence
                // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
                if (value == 0) {
                    return "0";
                }
                uint256 temp = value;
                uint256 digits;
                while (temp != 0) {
                    digits++;
                    temp /= 10;
                }
                bytes memory buffer = new bytes(digits);
                while (value != 0) {
                    digits -= 1;
                    buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
                    value /= 10;
                }
                return string(buffer);
            }
            /**
             * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
             */
            function toHexString(uint256 value) internal pure returns (string memory) {
                if (value == 0) {
                    return "0x00";
                }
                uint256 temp = value;
                uint256 length = 0;
                while (temp != 0) {
                    length++;
                    temp >>= 8;
                }
                return toHexString(value, length);
            }
            /**
             * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
             */
            function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
                bytes memory buffer = new bytes(2 * length + 2);
                buffer[0] = "0";
                buffer[1] = "x";
                for (uint256 i = 2 * length + 1; i > 1; --i) {
                    buffer[i] = _HEX_SYMBOLS[value & 0xf];
                    value >>= 4;
                }
                require(value == 0, "Strings: hex length insufficient");
                return string(buffer);
            }
            /**
             * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
             */
            function toHexString(address addr) internal pure returns (string memory) {
                return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)
        pragma solidity ^0.8.0;
        import "./IERC165Upgradeable.sol";
        import "../../proxy/utils/Initializable.sol";
        /**
         * @dev Implementation of the {IERC165} interface.
         *
         * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
         * for the additional interface id that will be supported. For example:
         *
         * ```solidity
         * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
         *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
         * }
         * ```
         *
         * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
         */
        abstract contract ERC165Upgradeable is Initializable, IERC165Upgradeable {
            function __ERC165_init() internal onlyInitializing {
            }
            function __ERC165_init_unchained() internal onlyInitializing {
            }
            /**
             * @dev See {IERC165-supportsInterface}.
             */
            function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
                return interfaceId == type(IERC165Upgradeable).interfaceId;
            }
            /**
             * @dev This empty reserved space is put in place to allow future versions to add new
             * variables without shifting down storage in the inheritance chain.
             * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
             */
            uint256[50] private __gap;
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
        pragma solidity ^0.8.0;
        /**
         * @dev Interface of the ERC165 standard, as defined in the
         * https://eips.ethereum.org/EIPS/eip-165[EIP].
         *
         * Implementers can declare support of contract interfaces, which can then be
         * queried by others ({ERC165Checker}).
         *
         * For an implementation, see {ERC165}.
         */
        interface IERC165Upgradeable {
            /**
             * @dev Returns true if this contract implements the interface defined by
             * `interfaceId`. See the corresponding
             * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
             * to learn more about how these ids are created.
             *
             * This function call must use less than 30 000 gas.
             */
            function supportsInterface(bytes4 interfaceId) external view returns (bool);
        }
        // SPDX-License-Identifier: MIT
        // ERC721A Contracts v3.3.0
        // Creator: Chiru Labs
        pragma solidity ^0.8.4;
        import "@openzeppelin/contracts-upgradeable/token/ERC721/IERC721Upgradeable.sol";
        import "@openzeppelin/contracts-upgradeable/token/ERC721/extensions/IERC721MetadataUpgradeable.sol";
        /**
         * @dev Interface of an ERC721A compliant contract.
         */
        interface IERC721AUpgradeable is IERC721Upgradeable, IERC721MetadataUpgradeable {
            /**
             * The caller must own the token or be an approved operator.
             */
            error ApprovalCallerNotOwnerNorApproved();
            /**
             * The token does not exist.
             */
            error ApprovalQueryForNonexistentToken();
            /**
             * The caller cannot approve to their own address.
             */
            error ApproveToCaller();
            /**
             * The caller cannot approve to the current owner.
             */
            error ApprovalToCurrentOwner();
            /**
             * Cannot query the balance for the zero address.
             */
            error BalanceQueryForZeroAddress();
            /**
             * Cannot mint to the zero address.
             */
            error MintToZeroAddress();
            /**
             * The quantity of tokens minted must be more than zero.
             */
            error MintZeroQuantity();
            /**
             * The token does not exist.
             */
            error OwnerQueryForNonexistentToken();
            /**
             * The caller must own the token or be an approved operator.
             */
            error TransferCallerNotOwnerNorApproved();
            /**
             * The token must be owned by `from`.
             */
            error TransferFromIncorrectOwner();
            /**
             * Cannot safely transfer to a contract that does not implement the ERC721Receiver interface.
             */
            error TransferToNonERC721ReceiverImplementer();
            /**
             * Cannot transfer to the zero address.
             */
            error TransferToZeroAddress();
            /**
             * The token does not exist.
             */
            error URIQueryForNonexistentToken();
            // Compiler will pack this into a single 256bit word.
            struct TokenOwnership {
                // The address of the owner.
                address addr;
                // Keeps track of the start time of ownership with minimal overhead for tokenomics.
                uint64 startTimestamp;
                // Whether the token has been burned.
                bool burned;
            }
            // Compiler will pack this into a single 256bit word.
            struct AddressData {
                // Realistically, 2**64-1 is more than enough.
                uint64 balance;
                // Keeps track of mint count with minimal overhead for tokenomics.
                uint64 numberMinted;
                // Keeps track of burn count with minimal overhead for tokenomics.
                uint64 numberBurned;
                // For miscellaneous variable(s) pertaining to the address
                // (e.g. number of whitelist mint slots used).
                // If there are multiple variables, please pack them into a uint64.
                uint64 aux;
            }
            /**
             * @dev Returns the total amount of tokens stored by the contract.
             * 
             * Burned tokens are calculated here, use `_totalMinted()` if you want to count just minted tokens.
             */
            function totalSupply() external view returns (uint256);
        }