creation_sourcecode: {{
    "language": "Solidity",
    "sources": {
      "@manifoldxyz/libraries-solidity/contracts/access/AdminControl.sol": {
        "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.0;\n\n/// @author: manifold.xyz\n\nimport \"@openzeppelin/contracts/utils/introspection/ERC165.sol\";\nimport \"@openzeppelin/contracts/utils/structs/EnumerableSet.sol\";\nimport \"@openzeppelin/contracts/access/Ownable.sol\";\nimport \"./IAdminControl.sol\";\n\nabstract contract AdminControl is Ownable, IAdminControl, ERC165 {\n    using EnumerableSet for EnumerableSet.AddressSet;\n\n    // Track registered admins\n    EnumerableSet.AddressSet private _admins;\n\n    /**\n     * @dev See {IERC165-supportsInterface}.\n     */\n    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {\n        return interfaceId == type(IAdminControl).interfaceId\n            || super.supportsInterface(interfaceId);\n    }\n\n    /**\n     * @dev Only allows approved admins to call the specified function\n     */\n    modifier adminRequired() {\n        require(owner() == msg.sender || _admins.contains(msg.sender), \"AdminControl: Must be owner or admin\");\n        _;\n    }   \n\n    /**\n     * @dev See {IAdminControl-getAdmins}.\n     */\n    function getAdmins() external view override returns (address[] memory admins) {\n        admins = new address[](_admins.length());\n        for (uint i = 0; i < _admins.length(); i++) {\n            admins[i] = _admins.at(i);\n        }\n        return admins;\n    }\n\n    /**\n     * @dev See {IAdminControl-approveAdmin}.\n     */\n    function approveAdmin(address admin) external override onlyOwner {\n        if (!_admins.contains(admin)) {\n            emit AdminApproved(admin, msg.sender);\n            _admins.add(admin);\n        }\n    }\n\n    /**\n     * @dev See {IAdminControl-revokeAdmin}.\n     */\n    function revokeAdmin(address admin) external override onlyOwner {\n        if (_admins.contains(admin)) {\n            emit AdminRevoked(admin, msg.sender);\n            _admins.remove(admin);\n        }\n    }\n\n    /**\n     * @dev See {IAdminControl-isAdmin}.\n     */\n    function isAdmin(address admin) public override view returns (bool) {\n        return (owner() == admin || _admins.contains(admin));\n    }\n\n}"
      },
      "@manifoldxyz/libraries-solidity/contracts/access/IAdminControl.sol": {
        "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.0;\n\n/// @author: manifold.xyz\n\nimport \"@openzeppelin/contracts/utils/introspection/IERC165.sol\";\n\n/**\n * @dev Interface for admin control\n */\ninterface IAdminControl is IERC165 {\n\n    event AdminApproved(address indexed account, address indexed sender);\n    event AdminRevoked(address indexed account, address indexed sender);\n\n    /**\n     * @dev gets address of all admins\n     */\n    function getAdmins() external view returns (address[] memory);\n\n    /**\n     * @dev add an admin.  Can only be called by contract owner.\n     */\n    function approveAdmin(address admin) external;\n\n    /**\n     * @dev remove an admin.  Can only be called by contract owner.\n     */\n    function revokeAdmin(address admin) external;\n\n    /**\n     * @dev checks whether or not given address is an admin\n     * Returns True if they are\n     */\n    function isAdmin(address admin) external view returns (bool);\n\n}"
      },
      "@openzeppelin/contracts/access/Ownable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/Context.sol\";\n\n/**\n * @dev Contract module which provides a basic access control mechanism, where\n * there is an account (an owner) that can be granted exclusive access to\n * specific functions.\n *\n * By default, the owner account will be the one that deploys the contract. This\n * can later be changed with {transferOwnership}.\n *\n * This module is used through inheritance. It will make available the modifier\n * `onlyOwner`, which can be applied to your functions to restrict their use to\n * the owner.\n */\nabstract contract Ownable is Context {\n    address private _owner;\n\n    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\n\n    /**\n     * @dev Initializes the contract setting the deployer as the initial owner.\n     */\n    constructor() {\n        _transferOwnership(_msgSender());\n    }\n\n    /**\n     * @dev Returns the address of the current owner.\n     */\n    function owner() public view virtual returns (address) {\n        return _owner;\n    }\n\n    /**\n     * @dev Throws if called by any account other than the owner.\n     */\n    modifier onlyOwner() {\n        require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n        _;\n    }\n\n    /**\n     * @dev Leaves the contract without owner. It will not be possible to call\n     * `onlyOwner` functions anymore. Can only be called by the current owner.\n     *\n     * NOTE: Renouncing ownership will leave the contract without an owner,\n     * thereby removing any functionality that is only available to the owner.\n     */\n    function renounceOwnership() public virtual onlyOwner {\n        _transferOwnership(address(0));\n    }\n\n    /**\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\n     * Can only be called by the current owner.\n     */\n    function transferOwnership(address newOwner) public virtual onlyOwner {\n        require(newOwner != address(0), \"Ownable: new owner is the zero address\");\n        _transferOwnership(newOwner);\n    }\n\n    /**\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\n     * Internal function without access restriction.\n     */\n    function _transferOwnership(address newOwner) internal virtual {\n        address oldOwner = _owner;\n        _owner = newOwner;\n        emit OwnershipTransferred(oldOwner, newOwner);\n    }\n}\n"
      },
      "@openzeppelin/contracts/token/ERC721/ERC721.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/ERC721.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC721.sol\";\nimport \"./IERC721Receiver.sol\";\nimport \"./extensions/IERC721Metadata.sol\";\nimport \"../../utils/Address.sol\";\nimport \"../../utils/Context.sol\";\nimport \"../../utils/Strings.sol\";\nimport \"../../utils/introspection/ERC165.sol\";\n\n/**\n * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including\n * the Metadata extension, but not including the Enumerable extension, which is available separately as\n * {ERC721Enumerable}.\n */\ncontract ERC721 is Context, ERC165, IERC721, IERC721Metadata {\n    using Address for address;\n    using Strings for uint256;\n\n    // Token name\n    string private _name;\n\n    // Token symbol\n    string private _symbol;\n\n    // Mapping from token ID to owner address\n    mapping(uint256 => address) private _owners;\n\n    // Mapping owner address to token count\n    mapping(address => uint256) private _balances;\n\n    // Mapping from token ID to approved address\n    mapping(uint256 => address) private _tokenApprovals;\n\n    // Mapping from owner to operator approvals\n    mapping(address => mapping(address => bool)) private _operatorApprovals;\n\n    /**\n     * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.\n     */\n    constructor(string memory name_, string memory symbol_) {\n        _name = name_;\n        _symbol = symbol_;\n    }\n\n    /**\n     * @dev See {IERC165-supportsInterface}.\n     */\n    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {\n        return\n            interfaceId == type(IERC721).interfaceId ||\n            interfaceId == type(IERC721Metadata).interfaceId ||\n            super.supportsInterface(interfaceId);\n    }\n\n    /**\n     * @dev See {IERC721-balanceOf}.\n     */\n    function balanceOf(address owner) public view virtual override returns (uint256) {\n        require(owner != address(0), \"ERC721: balance query for the zero address\");\n        return _balances[owner];\n    }\n\n    /**\n     * @dev See {IERC721-ownerOf}.\n     */\n    function ownerOf(uint256 tokenId) public view virtual override returns (address) {\n        address owner = _owners[tokenId];\n        require(owner != address(0), \"ERC721: owner query for nonexistent token\");\n        return owner;\n    }\n\n    /**\n     * @dev See {IERC721Metadata-name}.\n     */\n    function name() public view virtual override returns (string memory) {\n        return _name;\n    }\n\n    /**\n     * @dev See {IERC721Metadata-symbol}.\n     */\n    function symbol() public view virtual override returns (string memory) {\n        return _symbol;\n    }\n\n    /**\n     * @dev See {IERC721Metadata-tokenURI}.\n     */\n    function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {\n        require(_exists(tokenId), \"ERC721Metadata: URI query for nonexistent token\");\n\n        string memory baseURI = _baseURI();\n        return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : \"\";\n    }\n\n    /**\n     * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each\n     * token will be the concatenation of the `baseURI` and the `tokenId`. Empty\n     * by default, can be overridden in child contracts.\n     */\n    function _baseURI() internal view virtual returns (string memory) {\n        return \"\";\n    }\n\n    /**\n     * @dev See {IERC721-approve}.\n     */\n    function approve(address to, uint256 tokenId) public virtual override {\n        address owner = ERC721.ownerOf(tokenId);\n        require(to != owner, \"ERC721: approval to current owner\");\n\n        require(\n            _msgSender() == owner || isApprovedForAll(owner, _msgSender()),\n            \"ERC721: approve caller is not owner nor approved for all\"\n        );\n\n        _approve(to, tokenId);\n    }\n\n    /**\n     * @dev See {IERC721-getApproved}.\n     */\n    function getApproved(uint256 tokenId) public view virtual override returns (address) {\n        require(_exists(tokenId), \"ERC721: approved query for nonexistent token\");\n\n        return _tokenApprovals[tokenId];\n    }\n\n    /**\n     * @dev See {IERC721-setApprovalForAll}.\n     */\n    function setApprovalForAll(address operator, bool approved) public virtual override {\n        _setApprovalForAll(_msgSender(), operator, approved);\n    }\n\n    /**\n     * @dev See {IERC721-isApprovedForAll}.\n     */\n    function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {\n        return _operatorApprovals[owner][operator];\n    }\n\n    /**\n     * @dev See {IERC721-transferFrom}.\n     */\n    function transferFrom(\n        address from,\n        address to,\n        uint256 tokenId\n    ) public virtual override {\n        //solhint-disable-next-line max-line-length\n        require(_isApprovedOrOwner(_msgSender(), tokenId), \"ERC721: transfer caller is not owner nor approved\");\n\n        _transfer(from, to, tokenId);\n    }\n\n    /**\n     * @dev See {IERC721-safeTransferFrom}.\n     */\n    function safeTransferFrom(\n        address from,\n        address to,\n        uint256 tokenId\n    ) public virtual override {\n        safeTransferFrom(from, to, tokenId, \"\");\n    }\n\n    /**\n     * @dev See {IERC721-safeTransferFrom}.\n     */\n    function safeTransferFrom(\n        address from,\n        address to,\n        uint256 tokenId,\n        bytes memory _data\n    ) public virtual override {\n        require(_isApprovedOrOwner(_msgSender(), tokenId), \"ERC721: transfer caller is not owner nor approved\");\n        _safeTransfer(from, to, tokenId, _data);\n    }\n\n    /**\n     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n     * are aware of the ERC721 protocol to prevent tokens from being forever locked.\n     *\n     * `_data` is additional data, it has no specified format and it is sent in call to `to`.\n     *\n     * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.\n     * implement alternative mechanisms to perform token transfer, such as signature-based.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must exist and be owned by `from`.\n     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n     *\n     * Emits a {Transfer} event.\n     */\n    function _safeTransfer(\n        address from,\n        address to,\n        uint256 tokenId,\n        bytes memory _data\n    ) internal virtual {\n        _transfer(from, to, tokenId);\n        require(_checkOnERC721Received(from, to, tokenId, _data), \"ERC721: transfer to non ERC721Receiver implementer\");\n    }\n\n    /**\n     * @dev Returns whether `tokenId` exists.\n     *\n     * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.\n     *\n     * Tokens start existing when they are minted (`_mint`),\n     * and stop existing when they are burned (`_burn`).\n     */\n    function _exists(uint256 tokenId) internal view virtual returns (bool) {\n        return _owners[tokenId] != address(0);\n    }\n\n    /**\n     * @dev Returns whether `spender` is allowed to manage `tokenId`.\n     *\n     * Requirements:\n     *\n     * - `tokenId` must exist.\n     */\n    function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {\n        require(_exists(tokenId), \"ERC721: operator query for nonexistent token\");\n        address owner = ERC721.ownerOf(tokenId);\n        return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender);\n    }\n\n    /**\n     * @dev Safely mints `tokenId` and transfers it to `to`.\n     *\n     * Requirements:\n     *\n     * - `tokenId` must not exist.\n     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n     *\n     * Emits a {Transfer} event.\n     */\n    function _safeMint(address to, uint256 tokenId) internal virtual {\n        _safeMint(to, tokenId, \"\");\n    }\n\n    /**\n     * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is\n     * forwarded in {IERC721Receiver-onERC721Received} to contract recipients.\n     */\n    function _safeMint(\n        address to,\n        uint256 tokenId,\n        bytes memory _data\n    ) internal virtual {\n        _mint(to, tokenId);\n        require(\n            _checkOnERC721Received(address(0), to, tokenId, _data),\n            \"ERC721: transfer to non ERC721Receiver implementer\"\n        );\n    }\n\n    /**\n     * @dev Mints `tokenId` and transfers it to `to`.\n     *\n     * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible\n     *\n     * Requirements:\n     *\n     * - `tokenId` must not exist.\n     * - `to` cannot be the zero address.\n     *\n     * Emits a {Transfer} event.\n     */\n    function _mint(address to, uint256 tokenId) internal virtual {\n        require(to != address(0), \"ERC721: mint to the zero address\");\n        require(!_exists(tokenId), \"ERC721: token already minted\");\n\n        _beforeTokenTransfer(address(0), to, tokenId);\n\n        _balances[to] += 1;\n        _owners[tokenId] = to;\n\n        emit Transfer(address(0), to, tokenId);\n\n        _afterTokenTransfer(address(0), to, tokenId);\n    }\n\n    /**\n     * @dev Destroys `tokenId`.\n     * The approval is cleared when the token is burned.\n     *\n     * Requirements:\n     *\n     * - `tokenId` must exist.\n     *\n     * Emits a {Transfer} event.\n     */\n    function _burn(uint256 tokenId) internal virtual {\n        address owner = ERC721.ownerOf(tokenId);\n\n        _beforeTokenTransfer(owner, address(0), tokenId);\n\n        // Clear approvals\n        _approve(address(0), tokenId);\n\n        _balances[owner] -= 1;\n        delete _owners[tokenId];\n\n        emit Transfer(owner, address(0), tokenId);\n\n        _afterTokenTransfer(owner, address(0), tokenId);\n    }\n\n    /**\n     * @dev Transfers `tokenId` from `from` to `to`.\n     *  As opposed to {transferFrom}, this imposes no restrictions on msg.sender.\n     *\n     * Requirements:\n     *\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must be owned by `from`.\n     *\n     * Emits a {Transfer} event.\n     */\n    function _transfer(\n        address from,\n        address to,\n        uint256 tokenId\n    ) internal virtual {\n        require(ERC721.ownerOf(tokenId) == from, \"ERC721: transfer from incorrect owner\");\n        require(to != address(0), \"ERC721: transfer to the zero address\");\n\n        _beforeTokenTransfer(from, to, tokenId);\n\n        // Clear approvals from the previous owner\n        _approve(address(0), tokenId);\n\n        _balances[from] -= 1;\n        _balances[to] += 1;\n        _owners[tokenId] = to;\n\n        emit Transfer(from, to, tokenId);\n\n        _afterTokenTransfer(from, to, tokenId);\n    }\n\n    /**\n     * @dev Approve `to` to operate on `tokenId`\n     *\n     * Emits a {Approval} event.\n     */\n    function _approve(address to, uint256 tokenId) internal virtual {\n        _tokenApprovals[tokenId] = to;\n        emit Approval(ERC721.ownerOf(tokenId), to, tokenId);\n    }\n\n    /**\n     * @dev Approve `operator` to operate on all of `owner` tokens\n     *\n     * Emits a {ApprovalForAll} event.\n     */\n    function _setApprovalForAll(\n        address owner,\n        address operator,\n        bool approved\n    ) internal virtual {\n        require(owner != operator, \"ERC721: approve to caller\");\n        _operatorApprovals[owner][operator] = approved;\n        emit ApprovalForAll(owner, operator, approved);\n    }\n\n    /**\n     * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.\n     * The call is not executed if the target address is not a contract.\n     *\n     * @param from address representing the previous owner of the given token ID\n     * @param to target address that will receive the tokens\n     * @param tokenId uint256 ID of the token to be transferred\n     * @param _data bytes optional data to send along with the call\n     * @return bool whether the call correctly returned the expected magic value\n     */\n    function _checkOnERC721Received(\n        address from,\n        address to,\n        uint256 tokenId,\n        bytes memory _data\n    ) private returns (bool) {\n        if (to.isContract()) {\n            try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) {\n                return retval == IERC721Receiver.onERC721Received.selector;\n            } catch (bytes memory reason) {\n                if (reason.length == 0) {\n                    revert(\"ERC721: transfer to non ERC721Receiver implementer\");\n                } else {\n                    assembly {\n                        revert(add(32, reason), mload(reason))\n                    }\n                }\n            }\n        } else {\n            return true;\n        }\n    }\n\n    /**\n     * @dev Hook that is called before any token transfer. This includes minting\n     * and burning.\n     *\n     * Calling conditions:\n     *\n     * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be\n     * transferred to `to`.\n     * - When `from` is zero, `tokenId` will be minted for `to`.\n     * - When `to` is zero, ``from``'s `tokenId` will be burned.\n     * - `from` and `to` are never both zero.\n     *\n     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n     */\n    function _beforeTokenTransfer(\n        address from,\n        address to,\n        uint256 tokenId\n    ) internal virtual {}\n\n    /**\n     * @dev Hook that is called after any transfer of tokens. This includes\n     * minting and burning.\n     *\n     * Calling conditions:\n     *\n     * - when `from` and `to` are both non-zero.\n     * - `from` and `to` are never both zero.\n     *\n     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n     */\n    function _afterTokenTransfer(\n        address from,\n        address to,\n        uint256 tokenId\n    ) internal virtual {}\n}\n"
      },
      "@openzeppelin/contracts/token/ERC721/extensions/ERC721Burnable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/ERC721Burnable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../ERC721.sol\";\nimport \"../../../utils/Context.sol\";\n\n/**\n * @title ERC721 Burnable Token\n * @dev ERC721 Token that can be irreversibly burned (destroyed).\n */\nabstract contract ERC721Burnable is Context, ERC721 {\n    /**\n     * @dev Burns `tokenId`. See {ERC721-_burn}.\n     *\n     * Requirements:\n     *\n     * - The caller must own `tokenId` or be an approved operator.\n     */\n    function burn(uint256 tokenId) public virtual {\n        //solhint-disable-next-line max-line-length\n        require(_isApprovedOrOwner(_msgSender(), tokenId), \"ERC721Burnable: caller is not owner nor approved\");\n        _burn(tokenId);\n    }\n}\n"
      },
      "@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC721.sol\";\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional metadata extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ninterface IERC721Metadata is IERC721 {\n    /**\n     * @dev Returns the token collection name.\n     */\n    function name() external view returns (string memory);\n\n    /**\n     * @dev Returns the token collection symbol.\n     */\n    function symbol() external view returns (string memory);\n\n    /**\n     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.\n     */\n    function tokenURI(uint256 tokenId) external view returns (string memory);\n}\n"
      },
      "@openzeppelin/contracts/token/ERC721/IERC721.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../utils/introspection/IERC165.sol\";\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ninterface IERC721 is IERC165 {\n    /**\n     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.\n     */\n    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n\n    /**\n     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.\n     */\n    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n\n    /**\n     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.\n     */\n    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n    /**\n     * @dev Returns the number of tokens in ``owner``'s account.\n     */\n    function balanceOf(address owner) external view returns (uint256 balance);\n\n    /**\n     * @dev Returns the owner of the `tokenId` token.\n     *\n     * Requirements:\n     *\n     * - `tokenId` must exist.\n     */\n    function ownerOf(uint256 tokenId) external view returns (address owner);\n\n    /**\n     * @dev Safely transfers `tokenId` token from `from` to `to`.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must exist and be owned by `from`.\n     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n     *\n     * Emits a {Transfer} event.\n     */\n    function safeTransferFrom(\n        address from,\n        address to,\n        uint256 tokenId,\n        bytes calldata data\n    ) external;\n\n    /**\n     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n     * are aware of the ERC721 protocol to prevent tokens from being forever locked.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must exist and be owned by `from`.\n     * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.\n     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n     *\n     * Emits a {Transfer} event.\n     */\n    function safeTransferFrom(\n        address from,\n        address to,\n        uint256 tokenId\n    ) external;\n\n    /**\n     * @dev Transfers `tokenId` token from `from` to `to`.\n     *\n     * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must be owned by `from`.\n     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transferFrom(\n        address from,\n        address to,\n        uint256 tokenId\n    ) external;\n\n    /**\n     * @dev Gives permission to `to` to transfer `tokenId` token to another account.\n     * The approval is cleared when the token is transferred.\n     *\n     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.\n     *\n     * Requirements:\n     *\n     * - The caller must own the token or be an approved operator.\n     * - `tokenId` must exist.\n     *\n     * Emits an {Approval} event.\n     */\n    function approve(address to, uint256 tokenId) external;\n\n    /**\n     * @dev Approve or remove `operator` as an operator for the caller.\n     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.\n     *\n     * Requirements:\n     *\n     * - The `operator` cannot be the caller.\n     *\n     * Emits an {ApprovalForAll} event.\n     */\n    function setApprovalForAll(address operator, bool _approved) external;\n\n    /**\n     * @dev Returns the account approved for `tokenId` token.\n     *\n     * Requirements:\n     *\n     * - `tokenId` must exist.\n     */\n    function getApproved(uint256 tokenId) external view returns (address operator);\n\n    /**\n     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n     *\n     * See {setApprovalForAll}\n     */\n    function isApprovedForAll(address owner, address operator) external view returns (bool);\n}\n"
      },
      "@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @title ERC721 token receiver interface\n * @dev Interface for any contract that wants to support safeTransfers\n * from ERC721 asset contracts.\n */\ninterface IERC721Receiver {\n    /**\n     * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}\n     * by `operator` from `from`, this function is called.\n     *\n     * It must return its Solidity selector to confirm the token transfer.\n     * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.\n     *\n     * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.\n     */\n    function onERC721Received(\n        address operator,\n        address from,\n        uint256 tokenId,\n        bytes calldata data\n    ) external returns (bytes4);\n}\n"
      },
      "@openzeppelin/contracts/utils/Address.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\n    /**\n     * @dev Returns true if `account` is a contract.\n     *\n     * [IMPORTANT]\n     * ====\n     * It is unsafe to assume that an address for which this function returns\n     * false is an externally-owned account (EOA) and not a contract.\n     *\n     * Among others, `isContract` will return false for the following\n     * types of addresses:\n     *\n     *  - an externally-owned account\n     *  - a contract in construction\n     *  - an address where a contract will be created\n     *  - an address where a contract lived, but was destroyed\n     * ====\n     *\n     * [IMPORTANT]\n     * ====\n     * You shouldn't rely on `isContract` to protect against flash loan attacks!\n     *\n     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n     * constructor.\n     * ====\n     */\n    function isContract(address account) internal view returns (bool) {\n        // This method relies on extcodesize/address.code.length, which returns 0\n        // for contracts in construction, since the code is only stored at the end\n        // of the constructor execution.\n\n        return account.code.length > 0;\n    }\n\n    /**\n     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n     * `recipient`, forwarding all available gas and reverting on errors.\n     *\n     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n     * of certain opcodes, possibly making contracts go over the 2300 gas limit\n     * imposed by `transfer`, making them unable to receive funds via\n     * `transfer`. {sendValue} removes this limitation.\n     *\n     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n     *\n     * IMPORTANT: because control is transferred to `recipient`, care must be\n     * taken to not create reentrancy vulnerabilities. Consider using\n     * {ReentrancyGuard} or the\n     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n     */\n    function sendValue(address payable recipient, uint256 amount) internal {\n        require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n        (bool success, ) = recipient.call{value: amount}(\"\");\n        require(success, \"Address: unable to send value, recipient may have reverted\");\n    }\n\n    /**\n     * @dev Performs a Solidity function call using a low level `call`. A\n     * plain `call` is an unsafe replacement for a function call: use this\n     * function instead.\n     *\n     * If `target` reverts with a revert reason, it is bubbled up by this\n     * function (like regular Solidity function calls).\n     *\n     * Returns the raw returned data. To convert to the expected return value,\n     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n     *\n     * Requirements:\n     *\n     * - `target` must be a contract.\n     * - calling `target` with `data` must not revert.\n     *\n     * _Available since v3.1._\n     */\n    function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n        return functionCall(target, data, \"Address: low-level call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n     * `errorMessage` as a fallback revert reason when `target` reverts.\n     *\n     * _Available since v3.1._\n     */\n    function functionCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, 0, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but also transferring `value` wei to `target`.\n     *\n     * Requirements:\n     *\n     * - the calling contract must have an ETH balance of at least `value`.\n     * - the called Solidity function must be `payable`.\n     *\n     * _Available since v3.1._\n     */\n    function functionCallWithValue(\n        address target,\n        bytes memory data,\n        uint256 value\n    ) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n     * with `errorMessage` as a fallback revert reason when `target` reverts.\n     *\n     * _Available since v3.1._\n     */\n    function functionCallWithValue(\n        address target,\n        bytes memory data,\n        uint256 value,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        require(address(this).balance >= value, \"Address: insufficient balance for call\");\n        require(isContract(target), \"Address: call to non-contract\");\n\n        (bool success, bytes memory returndata) = target.call{value: value}(data);\n        return verifyCallResult(success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but performing a static call.\n     *\n     * _Available since v3.3._\n     */\n    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n        return functionStaticCall(target, data, \"Address: low-level static call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n     * but performing a static call.\n     *\n     * _Available since v3.3._\n     */\n    function functionStaticCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal view returns (bytes memory) {\n        require(isContract(target), \"Address: static call to non-contract\");\n\n        (bool success, bytes memory returndata) = target.staticcall(data);\n        return verifyCallResult(success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but performing a delegate call.\n     *\n     * _Available since v3.4._\n     */\n    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n        return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n     * but performing a delegate call.\n     *\n     * _Available since v3.4._\n     */\n    function functionDelegateCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        require(isContract(target), \"Address: delegate call to non-contract\");\n\n        (bool success, bytes memory returndata) = target.delegatecall(data);\n        return verifyCallResult(success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the\n     * revert reason using the provided one.\n     *\n     * _Available since v4.3._\n     */\n    function verifyCallResult(\n        bool success,\n        bytes memory returndata,\n        string memory errorMessage\n    ) internal pure returns (bytes memory) {\n        if (success) {\n            return returndata;\n        } else {\n            // Look for revert reason and bubble it up if present\n            if (returndata.length > 0) {\n                // The easiest way to bubble the revert reason is using memory via assembly\n\n                assembly {\n                    let returndata_size := mload(returndata)\n                    revert(add(32, returndata), returndata_size)\n                }\n            } else {\n                revert(errorMessage);\n            }\n        }\n    }\n}\n"
      },
      "@openzeppelin/contracts/utils/Context.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Provides information about the current execution context, including the\n * sender of the transaction and its data. While these are generally available\n * via msg.sender and msg.data, they should not be accessed in such a direct\n * manner, since when dealing with meta-transactions the account sending and\n * paying for execution may not be the actual sender (as far as an application\n * is concerned).\n *\n * This contract is only required for intermediate, library-like contracts.\n */\nabstract contract Context {\n    function _msgSender() internal view virtual returns (address) {\n        return msg.sender;\n    }\n\n    function _msgData() internal view virtual returns (bytes calldata) {\n        return msg.data;\n    }\n}\n"
      },
      "@openzeppelin/contracts/utils/introspection/ERC165.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC165.sol\";\n\n/**\n * @dev Implementation of the {IERC165} interface.\n *\n * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check\n * for the additional interface id that will be supported. For example:\n *\n * ```solidity\n * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);\n * }\n * ```\n *\n * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.\n */\nabstract contract ERC165 is IERC165 {\n    /**\n     * @dev See {IERC165-supportsInterface}.\n     */\n    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n        return interfaceId == type(IERC165).interfaceId;\n    }\n}\n"
      },
      "@openzeppelin/contracts/utils/introspection/IERC165.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others ({ERC165Checker}).\n *\n * For an implementation, see {ERC165}.\n */\ninterface IERC165 {\n    /**\n     * @dev Returns true if this contract implements the interface defined by\n     * `interfaceId`. See the corresponding\n     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\n     * to learn more about how these ids are created.\n     *\n     * This function call must use less than 30 000 gas.\n     */\n    function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n"
      },
      "@openzeppelin/contracts/utils/Strings.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/Strings.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev String operations.\n */\nlibrary Strings {\n    bytes16 private constant _HEX_SYMBOLS = \"0123456789abcdef\";\n\n    /**\n     * @dev Converts a `uint256` to its ASCII `string` decimal representation.\n     */\n    function toString(uint256 value) internal pure returns (string memory) {\n        // Inspired by OraclizeAPI's implementation - MIT licence\n        // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol\n\n        if (value == 0) {\n            return \"0\";\n        }\n        uint256 temp = value;\n        uint256 digits;\n        while (temp != 0) {\n            digits++;\n            temp /= 10;\n        }\n        bytes memory buffer = new bytes(digits);\n        while (value != 0) {\n            digits -= 1;\n            buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));\n            value /= 10;\n        }\n        return string(buffer);\n    }\n\n    /**\n     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.\n     */\n    function toHexString(uint256 value) internal pure returns (string memory) {\n        if (value == 0) {\n            return \"0x00\";\n        }\n        uint256 temp = value;\n        uint256 length = 0;\n        while (temp != 0) {\n            length++;\n            temp >>= 8;\n        }\n        return toHexString(value, length);\n    }\n\n    /**\n     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.\n     */\n    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {\n        bytes memory buffer = new bytes(2 * length + 2);\n        buffer[0] = \"0\";\n        buffer[1] = \"x\";\n        for (uint256 i = 2 * length + 1; i > 1; --i) {\n            buffer[i] = _HEX_SYMBOLS[value & 0xf];\n            value >>= 4;\n        }\n        require(value == 0, \"Strings: hex length insufficient\");\n        return string(buffer);\n    }\n}\n"
      },
      "@openzeppelin/contracts/utils/structs/EnumerableSet.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (utils/structs/EnumerableSet.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Library for managing\n * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive\n * types.\n *\n * Sets have the following properties:\n *\n * - Elements are added, removed, and checked for existence in constant time\n * (O(1)).\n * - Elements are enumerated in O(n). No guarantees are made on the ordering.\n *\n * ```\n * contract Example {\n *     // Add the library methods\n *     using EnumerableSet for EnumerableSet.AddressSet;\n *\n *     // Declare a set state variable\n *     EnumerableSet.AddressSet private mySet;\n * }\n * ```\n *\n * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)\n * and `uint256` (`UintSet`) are supported.\n */\nlibrary EnumerableSet {\n    // To implement this library for multiple types with as little code\n    // repetition as possible, we write it in terms of a generic Set type with\n    // bytes32 values.\n    // The Set implementation uses private functions, and user-facing\n    // implementations (such as AddressSet) are just wrappers around the\n    // underlying Set.\n    // This means that we can only create new EnumerableSets for types that fit\n    // in bytes32.\n\n    struct Set {\n        // Storage of set values\n        bytes32[] _values;\n        // Position of the value in the `values` array, plus 1 because index 0\n        // means a value is not in the set.\n        mapping(bytes32 => uint256) _indexes;\n    }\n\n    /**\n     * @dev Add a value to a set. O(1).\n     *\n     * Returns true if the value was added to the set, that is if it was not\n     * already present.\n     */\n    function _add(Set storage set, bytes32 value) private returns (bool) {\n        if (!_contains(set, value)) {\n            set._values.push(value);\n            // The value is stored at length-1, but we add 1 to all indexes\n            // and use 0 as a sentinel value\n            set._indexes[value] = set._values.length;\n            return true;\n        } else {\n            return false;\n        }\n    }\n\n    /**\n     * @dev Removes a value from a set. O(1).\n     *\n     * Returns true if the value was removed from the set, that is if it was\n     * present.\n     */\n    function _remove(Set storage set, bytes32 value) private returns (bool) {\n        // We read and store the value's index to prevent multiple reads from the same storage slot\n        uint256 valueIndex = set._indexes[value];\n\n        if (valueIndex != 0) {\n            // Equivalent to contains(set, value)\n            // To delete an element from the _values array in O(1), we swap the element to delete with the last one in\n            // the array, and then remove the last element (sometimes called as 'swap and pop').\n            // This modifies the order of the array, as noted in {at}.\n\n            uint256 toDeleteIndex = valueIndex - 1;\n            uint256 lastIndex = set._values.length - 1;\n\n            if (lastIndex != toDeleteIndex) {\n                bytes32 lastValue = set._values[lastIndex];\n\n                // Move the last value to the index where the value to delete is\n                set._values[toDeleteIndex] = lastValue;\n                // Update the index for the moved value\n                set._indexes[lastValue] = valueIndex; // Replace lastValue's index to valueIndex\n            }\n\n            // Delete the slot where the moved value was stored\n            set._values.pop();\n\n            // Delete the index for the deleted slot\n            delete set._indexes[value];\n\n            return true;\n        } else {\n            return false;\n        }\n    }\n\n    /**\n     * @dev Returns true if the value is in the set. O(1).\n     */\n    function _contains(Set storage set, bytes32 value) private view returns (bool) {\n        return set._indexes[value] != 0;\n    }\n\n    /**\n     * @dev Returns the number of values on the set. O(1).\n     */\n    function _length(Set storage set) private view returns (uint256) {\n        return set._values.length;\n    }\n\n    /**\n     * @dev Returns the value stored at position `index` in the set. O(1).\n     *\n     * Note that there are no guarantees on the ordering of values inside the\n     * array, and it may change when more values are added or removed.\n     *\n     * Requirements:\n     *\n     * - `index` must be strictly less than {length}.\n     */\n    function _at(Set storage set, uint256 index) private view returns (bytes32) {\n        return set._values[index];\n    }\n\n    /**\n     * @dev Return the entire set in an array\n     *\n     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed\n     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that\n     * this function has an unbounded cost, and using it as part of a state-changing function may render the function\n     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.\n     */\n    function _values(Set storage set) private view returns (bytes32[] memory) {\n        return set._values;\n    }\n\n    // Bytes32Set\n\n    struct Bytes32Set {\n        Set _inner;\n    }\n\n    /**\n     * @dev Add a value to a set. O(1).\n     *\n     * Returns true if the value was added to the set, that is if it was not\n     * already present.\n     */\n    function add(Bytes32Set storage set, bytes32 value) internal returns (bool) {\n        return _add(set._inner, value);\n    }\n\n    /**\n     * @dev Removes a value from a set. O(1).\n     *\n     * Returns true if the value was removed from the set, that is if it was\n     * present.\n     */\n    function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) {\n        return _remove(set._inner, value);\n    }\n\n    /**\n     * @dev Returns true if the value is in the set. O(1).\n     */\n    function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {\n        return _contains(set._inner, value);\n    }\n\n    /**\n     * @dev Returns the number of values in the set. O(1).\n     */\n    function length(Bytes32Set storage set) internal view returns (uint256) {\n        return _length(set._inner);\n    }\n\n    /**\n     * @dev Returns the value stored at position `index` in the set. O(1).\n     *\n     * Note that there are no guarantees on the ordering of values inside the\n     * array, and it may change when more values are added or removed.\n     *\n     * Requirements:\n     *\n     * - `index` must be strictly less than {length}.\n     */\n    function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {\n        return _at(set._inner, index);\n    }\n\n    /**\n     * @dev Return the entire set in an array\n     *\n     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed\n     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that\n     * this function has an unbounded cost, and using it as part of a state-changing function may render the function\n     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.\n     */\n    function values(Bytes32Set storage set) internal view returns (bytes32[] memory) {\n        return _values(set._inner);\n    }\n\n    // AddressSet\n\n    struct AddressSet {\n        Set _inner;\n    }\n\n    /**\n     * @dev Add a value to a set. O(1).\n     *\n     * Returns true if the value was added to the set, that is if it was not\n     * already present.\n     */\n    function add(AddressSet storage set, address value) internal returns (bool) {\n        return _add(set._inner, bytes32(uint256(uint160(value))));\n    }\n\n    /**\n     * @dev Removes a value from a set. O(1).\n     *\n     * Returns true if the value was removed from the set, that is if it was\n     * present.\n     */\n    function remove(AddressSet storage set, address value) internal returns (bool) {\n        return _remove(set._inner, bytes32(uint256(uint160(value))));\n    }\n\n    /**\n     * @dev Returns true if the value is in the set. O(1).\n     */\n    function contains(AddressSet storage set, address value) internal view returns (bool) {\n        return _contains(set._inner, bytes32(uint256(uint160(value))));\n    }\n\n    /**\n     * @dev Returns the number of values in the set. O(1).\n     */\n    function length(AddressSet storage set) internal view returns (uint256) {\n        return _length(set._inner);\n    }\n\n    /**\n     * @dev Returns the value stored at position `index` in the set. O(1).\n     *\n     * Note that there are no guarantees on the ordering of values inside the\n     * array, and it may change when more values are added or removed.\n     *\n     * Requirements:\n     *\n     * - `index` must be strictly less than {length}.\n     */\n    function at(AddressSet storage set, uint256 index) internal view returns (address) {\n        return address(uint160(uint256(_at(set._inner, index))));\n    }\n\n    /**\n     * @dev Return the entire set in an array\n     *\n     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed\n     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that\n     * this function has an unbounded cost, and using it as part of a state-changing function may render the function\n     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.\n     */\n    function values(AddressSet storage set) internal view returns (address[] memory) {\n        bytes32[] memory store = _values(set._inner);\n        address[] memory result;\n\n        assembly {\n            result := store\n        }\n\n        return result;\n    }\n\n    // UintSet\n\n    struct UintSet {\n        Set _inner;\n    }\n\n    /**\n     * @dev Add a value to a set. O(1).\n     *\n     * Returns true if the value was added to the set, that is if it was not\n     * already present.\n     */\n    function add(UintSet storage set, uint256 value) internal returns (bool) {\n        return _add(set._inner, bytes32(value));\n    }\n\n    /**\n     * @dev Removes a value from a set. O(1).\n     *\n     * Returns true if the value was removed from the set, that is if it was\n     * present.\n     */\n    function remove(UintSet storage set, uint256 value) internal returns (bool) {\n        return _remove(set._inner, bytes32(value));\n    }\n\n    /**\n     * @dev Returns true if the value is in the set. O(1).\n     */\n    function contains(UintSet storage set, uint256 value) internal view returns (bool) {\n        return _contains(set._inner, bytes32(value));\n    }\n\n    /**\n     * @dev Returns the number of values on the set. O(1).\n     */\n    function length(UintSet storage set) internal view returns (uint256) {\n        return _length(set._inner);\n    }\n\n    /**\n     * @dev Returns the value stored at position `index` in the set. O(1).\n     *\n     * Note that there are no guarantees on the ordering of values inside the\n     * array, and it may change when more values are added or removed.\n     *\n     * Requirements:\n     *\n     * - `index` must be strictly less than {length}.\n     */\n    function at(UintSet storage set, uint256 index) internal view returns (uint256) {\n        return uint256(_at(set._inner, index));\n    }\n\n    /**\n     * @dev Return the entire set in an array\n     *\n     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed\n     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that\n     * this function has an unbounded cost, and using it as part of a state-changing function may render the function\n     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.\n     */\n    function values(UintSet storage set) internal view returns (uint256[] memory) {\n        bytes32[] memory store = _values(set._inner);\n        uint256[] memory result;\n\n        assembly {\n            result := store\n        }\n\n        return result;\n    }\n}\n"
      },
      "contracts/ABISupplier.sol": {
        "content": "\n\n// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.20;\n\nimport \"@openzeppelin/contracts/utils/introspection/IERC165.sol\";\nimport \"@openzeppelin/contracts/utils/introspection/ERC165.sol\";\nimport \"./SSTORE2.sol\";\n\ninterface IABISupplier is IERC165 {\n  function abiString() external view returns (string memory);\n}\n\ncontract ABISupplier is IABISupplier, ERC165 {\n  address internal abiStoragePointer;\n\n  function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {\n    return interfaceId == type(IABISupplier).interfaceId || super.supportsInterface(interfaceId);\n  }\n\n  /**\n   * @notice Returns the ABI of this contract as a JSON string, for aliens who come to earth.\n   *         How else will they know how to interact with this program?\n   * @return The ABI JSON string\n   * @dev see {IABISupplier-abiString}\n   */\n  function abiString() public view returns (string memory) {\n    if (abiStoragePointer != address(0)) {\n      bytes memory b = SSTORE2.read(abiStoragePointer);\n      return string(b);\n    }\n    return \"\";\n  }\n}\n"
      },
      "contracts/AsciiArtSupplier.sol": {
        "content": "\n\n// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.19;\n\nimport \"@openzeppelin/contracts/utils/introspection/IERC165.sol\";\nimport \"@openzeppelin/contracts/utils/introspection/ERC165.sol\";\nimport \"./SSTORE2.sol\";\n\ninterface IAsciiArtSupplier is IERC165 {\n  function asciiArtURI() external view returns (string memory);\n}\n\ncontract AsciiArtSupplier is ERC165, IAsciiArtSupplier {\n  address internal asciiArtStoragePointer;\n\n  function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {\n    return interfaceId == type(IAsciiArtSupplier).interfaceId || super.supportsInterface(interfaceId);\n  }\n\n  function asciiArtURI() public virtual view returns (string memory) {\n    if (asciiArtStoragePointer != address(0)) {\n      bytes memory b = SSTORE2.read(asciiArtStoragePointer);\n      return string(b);\n    }\n    return \"\";\n  }\n}\n"
      },
      "contracts/BEING_AND_NOTHINGNESS.sol": {
        "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.20;\n\n// @author: white lights (whitelights.eth)\n\nimport \"@openzeppelin/contracts/token/ERC721/IERC721.sol\";\nimport \"@manifoldxyz/libraries-solidity/contracts/access/AdminControl.sol\";\nimport \"./ITokenURISupplier.sol\";\nimport \"./ABISupplier.sol\";\nimport \"./AsciiArtSupplier.sol\";\nimport \"./SSTORE2.sol\";\nimport \"./ERC721SuperpositionToken.sol\";\nimport \"./IERC7572.sol\";\n\n/////////////////////////////////////////////////////////////////////////\n//                                                                     //\n//     ╟▌█╨▌█N███████████████████████████████████▀███▌   ████████████  //\n//     ╠▌ΦM▀  ╟█████████▌█Å█████████████████████▌▐███M  ▐███▌██╝█████  //\n//         ╙▓▄▓██████████████████████████████▓██▌\"███▌  J█████╣▌▀████  //\n//         \"╬████████████████████████████████▌███_████▄  ╫███████▌╠▀▀  //\n//           `╚███████████████████████████████Ö███▌▀███▌  ▀█████▀████  //\n//                ▀████████\"╙╫████████████▌█████╟▀███████▌  ▀████████  //\n//                 ╫███████▄ ╙█████████Ñ██▌└████▀█▌┴▀███████▄▄ ╜▀▀▀▀█  //\n//     ▄▄╓_I~_    ▄███████████████████\"████ └████╨███ ╙▀████████████▀  //\n//    ██▀╜   ╛   ████████████████████ ╟██Ñ█▌  ██╣█_╜███ └▀████▀██████  //\n//  ~╛          █████████████████████ ▐██▌╫██  █▌╟█▄└████▄ ▀█████████  //\n//             ██████████████████████▌ ▀██▌▀██_ █▄╝██_▀█████_ ╙▀▀▀▀▀╜  //\n//            ╓██████████████████████╬█_╜███╬███┘██▄▀██╬▀▀█████▄_      //\n//           ╓█████████████████████████╬▀W▄║▀████▀╨██████████▀███████  //\n//          █████████████████████████████╫███▓████╬████╫█████████╬╠▄▄  //\n//          █████████████████████████████╫▄▄▓╫╫███████████▄▀▀████████  //\n//           └╜▀▀▀╜╙╙▀█████████████████████████████████▀██████▌╠▀▀▀▀╙  //\n//                    ███████████████████████████████████╠█████▀█████  //\n//                   ███████████████████████████████████▌╫▄▀█████████  //\n//                   └▀▀█████████████ being ██████████▌██ ██└▀███████  //\n//                      ██████ & ████████████████████████ ╟██▄ ╙▀████  //\n//                     ▐██████████████████████████████▌██▌ █████▄_ ┘▀  //\n//                          ╜█████████████████████████╫███  █████████  //\n//               ness     ████████████████████████▌████▌   ▀██████     //\n//         nothing           ███████████████████████████████▄    ╙▀▀█  //\n//                          ╟█████████████████████████▄████████▄_      //\n//                           ███████████████████████████╟████████████  //\n//                            ▀███████▀███▀▀▀██████████████████▀▀████  //\n//                                              ▀█████████████▀ █████  //\n//                                                 ╙▀████████\" ██████  //\n//                                                     ╫████▌ ███████  //\n//                                                     ████▌▌ ███╫███  //\n//                                                   ╓██████╫ ╙███▓██  //\n//       |Ψ> = 1/√2|0> + 1/√2|1                    ▄█████████▀▄╜█████  //\n//                                               ▄███████╟████▄▀█▄▀▀▀  //\n//                                            ▄▓█████▌╟██▄╠██████╬▀▀█  //\n//                                  _▄▄,▄▄▀╧╫╝███████▌ ███  ▀████████  //\n//                                                                     //\n/////////////////////////////////////////////////////////////////////////\n\ncontract BEING_AND_NOTHINGNESS is ERC721SuperpositionToken, ABISupplier, AsciiArtSupplier, IERC7572 {\n  ITokenURISupplier public renderer = ITokenURISupplier(0x0000000000000000000000000000000000000000);\n  address private artistStatementPointer;\n\n  constructor() ERC721SuperpositionToken(\n    \"BEING_AND_NOTHINGNESS\",\n    \"|\\u03A8>\"\n  ) {}\n\n  function supportsInterface(bytes4 interfaceId) public view override(ERC721SuperpositionToken, ABISupplier, AsciiArtSupplier) returns (bool) {\n    return super.supportsInterface(interfaceId);\n  }\n\n  function setRenderer(address addr) public adminRequired {\n    renderer = ITokenURISupplier(addr);\n  }\n\n  /**\n   * @dev See {IERC721Metadata-tokenURI}.\n   * @notice What exactly do you own when the token is\n   *         in a superposition of being and nothingness?\n   */\n  function tokenURI(uint256 tokenId) public view override returns (string memory) {\n    require(exists(tokenId), \"ERC721Metadata: URI query for nonexistent token\");\n    return renderer.tokenURI(tokenId);\n  }\n\n  /**\n   * @notice Returns the ERC7572 contract URI for this contract, modified to\n   *         include the ASCII art of this contract as a URI as well.\n   * @return The data:application/json;utf8, URI\n   * @dev    See {IERC7572-contractURI}.\n   */\n  function contractURI() public view returns (string memory) {\n      string memory json = string.concat(\n        '{\"name\": \"being and nothingness\",\"asciiArtURI\":\"',\n        this.asciiArtURI(),\n        '\"}'\n      );\n      return string.concat(\"data:application/json;utf8,\", json);\n  }\n\n  /**\n   * @notice Returns the ASCII art of this contract as a Data URI\n   *         for long-term storage on-chain\n   * @return The data:text/plain;charset=utf-8;base64, URI\n   * @dev    See {IAsciiSupplier-asciiUri}.\n   */\n  function asciiArtURI() public pure override returns (string memory) {\n    return \"data:text/plain;charset=utf-8;base64,Ly8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLw0KLy8gICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAvLw0KLy8gICAgIOKVn+KWjOKWiOKVqOKWjOKWiE7ilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojiloDilojilojilojilowgICDilojilojilojilojilojilojilojilojilojilojilojiloggIC8vDQovLyAgICAg4pWg4paMzqZN4paAICDilZ/ilojilojilojilojilojilojilojilojilojilozilojDheKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWjOKWkOKWiOKWiOKWiE0gIOKWkOKWiOKWiOKWiOKWjOKWiOKWiOKVneKWiOKWiOKWiOKWiOKWiCAgLy8NCi8vICAgICAgICAg4pWZ4paT4paE4paT4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paT4paI4paI4paMIuKWiOKWiOKWiOKWjCAgSuKWiOKWiOKWiOKWiOKWiOKVo+KWjOKWgOKWiOKWiOKWiOKWiCAgLy8NCi8vICAgICAgICAgIuKVrOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWjOKWiOKWiOKWiF/ilojilojilojilojiloQgIOKVq+KWiOKWiOKWiOKWiOKWiOKWiOKWiOKWjOKVoOKWgOKWgCAgLy8NCi8vICAgICAgICAgICBg4pWa4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paIw5bilojilojilojiloziloDilojilojilojilowgIOKWgOKWiOKWiOKWiOKWiOKWiOKWgOKWiOKWiOKWiOKWiCAgLy8NCi8vICAgICAgICAgICAgICAgIOKWgOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiCLilZnilavilojilojilojilojilojilojilojilojilojilojilojilojilozilojilojilojilojilojilZ/iloDilojilojilojilojilojilojilojilowgIOKWgOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiCAgLy8NCi8vICAgICAgICAgICAgICAgICDilavilojilojilojilojilojilojilojiloQg4pWZ4paI4paI4paI4paI4paI4paI4paI4paI4paIw5HilojilojilozilJTilojilojilojilojiloDilojilozilLTiloDilojilojilojilojilojilojilojiloTiloQg4pWc4paA4paA4paA4paA4paIICAvLw0KLy8gICAgIOKWhOKWhOKVk19Jfl8gICAg4paE4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paIIuKWiOKWiOKWiOKWiCDilJTilojilojilojilojilajilojilojilogg4pWZ4paA4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paAICAvLw0KLy8gICAg4paI4paI4paA4pWcICAg4pWbICAg4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paIIOKVn+KWiOKWiMOR4paI4paMICDilojilojilaPilohf4pWc4paI4paI4paIIOKUlOKWgOKWiOKWiOKWiOKWiOKWgOKWiOKWiOKWiOKWiOKWiOKWiCAgLy8NCi8vICB+4pWbICAgICAgICAgIOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiCDilpDilojilojilozilavilojiloggIOKWiOKWjOKVn+KWiOKWhOKUlOKWiOKWiOKWiOKWiOKWhCDiloDilojilojilojilojilojilojilojilojiloggIC8vDQovLyAgICAgICAgICAgICDilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilowg4paA4paI4paI4paM4paA4paI4paIXyDilojiloTilZ3ilojilohf4paA4paI4paI4paI4paI4paIXyDilZniloDiloDiloDiloDiloDilZwgIC8vDQovLyAgICAgICAgICAgIOKVk+KWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKVrOKWiF/ilZzilojilojilojilazilojilojilojilJjilojilojiloTiloDilojilojilaziloDiloDilojilojilojilojilojiloRfICAgICAgLy8NCi8vICAgICAgICAgICDilZPilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilaziloBX4paE4pWR4paA4paI4paI4paI4paI4paA4pWo4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paA4paI4paI4paI4paI4paI4paI4paIICAvLw0KLy8gICAgICAgICAg4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4pWr4paI4paI4paI4paT4paI4paI4paI4paI4pWs4paI4paI4paI4paI4pWr4paI4paI4paI4paI4paI4paI4paI4paI4paI4pWs4pWg4paE4paEICAvLw0KLy8gICAgICAgICAg4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4pWr4paE4paE4paT4pWr4pWr4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paE4paA4paA4paI4paI4paI4paI4paI4paI4paI4paIICAvLw0KLy8gICAgICAgICAgIOKUlOKVnOKWgOKWgOKWgOKVnOKVmeKVmeKWgOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWgOKWiOKWiOKWiOKWiOKWiOKWiOKWjOKVoOKWgOKWgOKWgOKWgOKVmSAgLy8NCi8vICAgICAgICAgICAgICAgICAgICDilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilaDilojilojilojilojilojiloDilojilojilojilojiloggIC8vDQovLyAgICAgICAgICAgICAgICAgICDilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilojilozilaviloTiloDilojilojilojilojilojilojilojilojiloggIC8vDQovLyAgICAgICAgICAgICAgICAgICDilJTiloDiloDilojilojilojilojilojilojilojilojilojilojilojilojiloggYmVpbmcg4paI4paI4paI4paI4paI4paI4paI4paI4paI4paI4paM4paI4paIIOKWiOKWiOKUlOKWgOKWiOKWiOKWiOKWiOKWiOKWiOKWiCAgLy8NCi8vICAgICAgICAgICAgICAgICAgICAgIOKWiOKWiOKWiOKWiOKWiOKWiCAmIOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiOKWiCDilZ/ilojilojiloQg4pWZ4paA4paI4paI4paI4paIICAvLw0KLy8gICAgICAgICAgICAgICAgICAgICDilpDilojilojil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 }\n\n  /**\n   * @notice Sets the ABI JSON string for this contract\n   * @param _abiString The new ABI JSON string\n   * @dev see {IABISupplier-setABIString}\n   */\n  function setABIString(string memory _abiString) public adminRequired {\n    abiStoragePointer = SSTORE2.write(bytes(_abiString));\n  }\n}\n"
      },
      "contracts/Bytecode.sol": {
        "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\n\nlibrary Bytecode {\n  error InvalidCodeAtRange(uint256 _size, uint256 _start, uint256 _end);\n\n  /**\n    @notice Generate a creation code that results on a contract with `_code` as bytecode\n    @param _code The returning value of the resulting `creationCode`\n    @return creationCode (constructor) for new contract\n  */\n  function creationCodeFor(bytes memory _code) internal pure returns (bytes memory) {\n    /*\n      0x00    0x63         0x63XXXXXX  PUSH4 _code.length  size\n      0x01    0x80         0x80        DUP1                size size\n      0x02    0x60         0x600e      PUSH1 14            14 size size\n      0x03    0x60         0x6000      PUSH1 00            0 14 size size\n      0x04    0x39         0x39        CODECOPY            size\n      0x05    0x60         0x6000      PUSH1 00            0 size\n      0x06    0xf3         0xf3        RETURN\n      <CODE>\n    */\n\n    return abi.encodePacked(\n      hex\"63\",\n      uint32(_code.length),\n      hex\"80_60_0E_60_00_39_60_00_F3\",\n      _code\n    );\n  }\n\n  /**\n    @notice Returns the size of the code on a given address\n    @param _addr Address that may or may not contain code\n    @return size of the code on the given `_addr`\n  */\n  function codeSize(address _addr) internal view returns (uint256 size) {\n    assembly { size := extcodesize(_addr) }\n  }\n\n  /**\n    @notice Returns the code of a given address\n    @dev It will fail if `_end < _start`\n    @param _addr Address that may or may not contain code\n    @param _start number of bytes of code to skip on read\n    @param _end index before which to end extraction\n    @return oCode read from `_addr` deployed bytecode\n\n    Forked from: https://gist.github.com/KardanovIR/fe98661df9338c842b4a30306d507fbd\n  */\n  function codeAt(address _addr, uint256 _start, uint256 _end) internal view returns (bytes memory oCode) {\n    uint256 csize = codeSize(_addr);\n    if (csize == 0) return bytes(\"\");\n\n    if (_start > csize) return bytes(\"\");\n    if (_end < _start) revert InvalidCodeAtRange(csize, _start, _end);\n\n    unchecked {\n      uint256 reqSize = _end - _start;\n      uint256 maxSize = csize - _start;\n\n      uint256 size = maxSize < reqSize ? maxSize : reqSize;\n\n      assembly {\n        // allocate output byte array - this could also be done without assembly\n        // by using o_code = new bytes(size)\n        oCode := mload(0x40)\n        // new \"memory end\" including padding\n        mstore(0x40, add(oCode, and(add(add(size, 0x20), 0x1f), not(0x1f))))\n        // store length in memory\n        mstore(oCode, size)\n        // actually retrieve the code, this needs assembly\n        extcodecopy(_addr, add(oCode, 0x20), _start, size)\n      }\n    }\n  }\n}\n"
      },
      "contracts/ERC721SuperpositionToken.sol": {
        "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nimport \"@openzeppelin/contracts/token/ERC721/extensions/ERC721Burnable.sol\";\nimport \"@manifoldxyz/libraries-solidity/contracts/access/AdminControl.sol\";\n\n/**\n * @title ERC721SuperpositionToken\n * @dev ERC721 token that sits in a superposition of existance. The token's\n * data either exists or does not for only the moment that qubitState or\n * exists is read from. At all other times it is in a superposition of both\n * existing and not existing.\n */\nabstract contract ERC721SuperpositionToken is ERC721Burnable, AdminControl {\n  bool public engaged = false;\n\n  constructor(string memory name, string memory symbol) ERC721(name, symbol) {\n    _safeMint(msg.sender, 1);\n  }\n\n  function supportsInterface(bytes4 interfaceId) public virtual view override(ERC721, AdminControl) returns (bool) {\n    return super.supportsInterface(interfaceId);\n  }\n\n  /**\n   * @return represents |0> or |1>\n   * @dev    pseudo-impossible to indefinitely predict the state of the qubit.\n   *         an attacker would need to always control the last four validators\n   *         of an epoch. in each of the four slots they could then choose to\n   *         sign or not, giving them 2^4 possible total random values to pick\n   *         from. this is equivalent to one bit of influence over only\n   *         prevrandao. an expensive sisyphean task to say the least.\n   *\n   */\n  function qubitState() public view returns (bool) {\n    return !engaged || ((uint256(\n      keccak256(abi.encodePacked(block.number, block.prevrandao, block.timestamp))\n    )) % 2 == 1);\n  }\n\n  /**\n   * @dev Returns whether the token exists, according to the state of a qubit\n   *      defined by wave function qubitState() combined with the token's\n   *      default existence in the ERC721 contract.\n   * @param tokenId uint256 ID of the token to query\n   * @return bool whether the token exists\n   */\n  function exists(uint256 tokenId) internal view returns (bool) {\n    return _exists(tokenId) && qubitState() == true;\n  }\n\n  function engage() public adminRequired {\n    engaged = true;\n  }\n}\n"
      },
      "contracts/IERC7572.sol": {
        "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.20;\n\ninterface IERC7572 {\n  function contractURI() external view returns (string memory);\n\n  event ContractURIUpdated();\n}\n"
      },
      "contracts/ITokenURISupplier.sol": {
        "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.19;\n\nimport \"@openzeppelin/contracts/utils/introspection/IERC165.sol\";\n\ninterface ITokenURISupplier is IERC165 {\n  function tokenURI(uint256 id) external view returns (string memory);\n}\n\ncontract TokenURISupplier is ITokenURISupplier {\n  function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n    return interfaceId == type(ITokenURISupplier).interfaceId;\n  }\n\n  function tokenURI(uint256 id) virtual external view returns (string memory) {\n    return string(abi.encodePacked(id));\n  }\n}\n"
      },
      "contracts/SSTORE2.sol": {
        "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nimport \"./Bytecode.sol\";\n\n/**\n  @title A key-value storage with auto-generated keys for storing chunks of data with a lower write & read cost.\n  @author Agustin Aguilar <aa@horizon.io>\n\n  Readme: https://github.com/0xsequence/sstore2#readme\n*/\nlibrary SSTORE2 {\n  error WriteError();\n\n  /**\n    @notice Stores `_data` and returns `pointer` as key for later retrieval\n    @dev The pointer is a contract address with `_data` as code\n    @param _data to be written\n    @return pointer Pointer to the written `_data`\n  */\n  function write(bytes memory _data) internal returns (address pointer) {\n    // Append 00 to _data so contract can't be called\n    // Build init code\n    bytes memory code = Bytecode.creationCodeFor(\n      abi.encodePacked(\n        hex'00',\n        _data\n      )\n    );\n\n    // Deploy contract using create\n    assembly { pointer := create(0, add(code, 32), mload(code)) }\n\n    // Address MUST be non-zero\n    if (pointer == address(0)) revert WriteError();\n  }\n\n  /**\n    @notice Reads the contents of the `_pointer` code as data, skips the first byte\n    @dev The function is intended for reading pointers generated by `write`\n    @param _pointer to be read\n    @return data read from `_pointer` contract\n  */\n  function read(address _pointer) internal view returns (bytes memory) {\n    return Bytecode.codeAt(_pointer, 1, type(uint256).max);\n  }\n\n  /**\n    @notice Reads the contents of the `_pointer` code as data, skips the first byte\n    @dev The function is intended for reading pointers generated by `write`\n    @param _pointer to be read\n    @param _start number of bytes to skip\n    @return data read from `_pointer` contract\n  */\n  function read(address _pointer, uint256 _start) internal view returns (bytes memory) {\n    return Bytecode.codeAt(_pointer, _start + 1, type(uint256).max);\n  }\n\n  /**\n    @notice Reads the contents of the `_pointer` code as data, skips the first byte\n    @dev The function is intended for reading pointers generated by `write`\n    @param _pointer to be read\n    @param _start number of bytes to skip\n    @param _end index before which to end extraction\n    @return data read from `_pointer` contract\n  */\n  function read(address _pointer, uint256 _start, uint256 _end) internal view returns (bytes memory) {\n    return Bytecode.codeAt(_pointer, _start + 1, _end + 1);\n  }\n}\n"
      }
    },
    "settings": {
      "viaIR": true,
      "optimizer": {
        "enabled": true,
        "runs": 200
      },
      "outputSelection": {
        "*": {
          "*": [
            "evm.bytecode",
            "evm.deployedBytecode",
            "devdoc",
            "userdoc",
            "metadata",
            "abi"
          ]
        }
      },
      "libraries": {}
    }
  }}