// File: contracts/NUXZERO.sol




// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @title: NUX ZERO OE
/// @author: manifold.xyz

import "./manifold/ERC721Creator.sol";

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//                                                                                                                                                                                                                                                                                                                    //
//                                                                                                                                                                                                                                                                                                                    //
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//    ....'...''.................. .,:.        ..............',;::::;,,,,,,,;:c;,:l:'......,,.....'.... ......'.'..     ............'''''......',;;:::;;'......':ccccc;''''''','..,;'.':cccccccclllcccc:::::::::::::::::::::cclllccc:;;;;;;;;;;;;;;;;;;;;;;::::::;;;;::;::::::;;;;;;;;;;;;;;;;,.        ...           //
//    ..............................  ..........  .....,...,,'.,;;;;;;;;;;;;;,,,,,,'''...''.........................................',,,'........,;;;:::;,,'''',;;;;;;,..'''''''',,,,':ooc:ccclllooollc:::::::::::::::::::ccclllllcc:;;;;;;;;;,,,,,,,;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;,,,,,,.      ..              //
//    .................................'','...........;l:.,lo:,;;;;;:ccccc::;;;,,,,,,,'.';;;,.......................''',,,,,'.......;:::,'.........'';cc,''''''''''''....','.',,,;;;;;:llc:::clloooooolcc:::::::::::::::::clllllllcc:;;;;;;;;;,,,,,,,,;;;;;;;;;;;;;;:::;;;;;;;;;;;;;;;;;;,,,,,'.      ..              //
//    ............................... .................'''''''',;;;;;:;:::::;;,,,,;,,'...........................',,,,,,,,,''..,,,';::::,,,,'''............'''''''','.''',;,',;;;;;;;;;;::::::clolcclolcc:::::::::::::::::cclllllccc:;;;;;;;;;;,,,,,;;;::;;;;;;;;;;;::::;;;;;;;;;;;;;;;;;,,,,;,.      ..              //
//    ...........'''...............    .....  .........'''''';;::;;;;;;::::;;;;,,:oc'......................,,,,,,,;,,,,,,;:ll::odc:::::clooolc:;,,,'...........'',;;,,,;;;;;;;;;;;;;;;;;:::::;;:c:,':cc:::::::::::::::::::ccllcccc:::;;;;;;;;;;;;,,;cc:::::;;:::;;;;::::;;;;;;;;;;;;;;;;;;;,;:;.                      //
//    ............................       .. ...........',,''',,,;,,;;;;;;:::;;,,,,;,''...........................';,;;,,,,;::ccllcc::ccllloddoool,.............';::::::;;;;;;;;;;;,,;;;;;::;;;;,'''''',::::::::::::::::::cccccccccc::;;;;;;;;::;;;:coolcccc:::::::;;;;;;;;;;;:::;;;;,,;;:::;;c:.                      //
//    .............................    ......................',,,,,,;;,,,,;;;,,,,,,,,''''''''......................';;;;;;;:ccccc:;;;;:clooddddddllllcc:'.;cc;',;::::::::cc:;;;;;,,,,,;;:;;:;,'''..'''',,,,,,:c::::::::cccccccccc::::;;;;;;;;;:::lxxddxxoccccc:::;',;;'.',;::::::;,'..,;;::::c:.                      //
//    ..............................  ...   .................;:;,,,,,''''''',,,,,''''''''',,,''...................'',;;;;;;;:cc::;;,''',,;ldddddddxxxdddlcoddddo:::::::cccccc:;;;,;;,,;;;;;;;,'''''''',,,,,,,:cc::cc::cccccccc::;;::;;;;;,,;;;:cldkxoldkdllllllc:;''......,:::::;,......,:;,;::.                      //
//    '''''.......................            ...............,;,''.....'''''''''''''''''''',,,,,'',,,'............'',,,,;;::cllcc;,'......,:coooodxxxdddxkxxxxkdlc:::cccccccccc:;;::;,;;;;;;;;;,'';;,'',,,,',:c;',::;,:ccccc:,',;,'',,,,,,,,;::lox0Oocllllllc,'','.........'';;,'.........''','.                      //
//    ;;;;,'.....'''...'.........                   .......''''..........''''''....'''''''''',,,,;;;;,'...........',;;;;::clllllc;''.......';cccloodddodxxxxxxxdllcccccccccccccc::cc:::::;;;;::;;;::;;,,,,'''''...''',;:cc:;,'..'...',,,,,,,;:cclx00kxocloc,'................''............''....                     //
//    c;;;;;,,'''''''''''''......                     .....''''.......................'''''''',,',',;;;;,,'......',,,''';ccccccc:;,'......',;cccclllllooxxkkkxxdlccccccccccccccccccccccc::;:c:::::::::;;,,,,,........';::;;,'.......'''',,,,;:ccldO00Oxoodc..............'........................                    //
//    xccllc:::;,'''''''''''.......   ...                     ..........................''''''',,,,:lollll:.........    .',;:cc::..      ...':ccclllllloxkkOOkkdlcccccccccccccccccccccccccccccc:::::::::;;;;;'........,;;,,,'.......'''.'',,;clodxOOkxxdddc.....''....''','......................                     //
//    kdolc:::::;;,,,,,,,,'''............                        .....................''''''''''':llolllllcc;..;:.          .::,,'..    .',;:cllooooloodkOOOOOOxllcclolcccccccccccccccccllllccccc::::::::;;:;,,'..''''',,,,,''............',;clxOOkxoooddxl'...,:,...''',;,''............'...'..                      //
//    00Oxdc::::;::::;;;,,,'..........                                 ..............'''''''.....';:clcccc;'......          .;:;;.         .'loodxkxodkkkOOOOOOxoolldxdccccccclllllllclllllllccccc::cc::;;;;;,,,'''',,,,,,,,,'''.''''''.'',;clodkxdoddoodxdc;'.,;,'.''.',;;:;'...........''.'''..                     //
//    000kxolc:lxxlccc:;;;,'........                                     ..............'''...........':lccc:,..   ..      .',;;;;,'.      .;codxkkkkkkkkkkkkkkkxooxkxxdlcc:ccclllllllllllccllccccccccc::;;;;;,'''''',,,;,,,,,'''''',,,''',;lollooood00xox0d,......'''''';:::;;,,,'.......''''''...                    //
//    00Okxoloox0Oocdxxdl:;;,,''....                                          .....................':codoo:'..       .;cccodl:;;;;,'....';codxxxkkkkkkkxkkdddxkkxxkkkkdc:::::cclllccllllc::clc::cccccc:;;;;;;,'''''',,;::,,,,''''''',;,',,;lolllooldO0xox0d'.....':;,,;:okd:;;;;;,,'''...''''''...                    //
//    00OxdoldxOKOolk000xc:::;;,'........             .......                 .........       ...'cldxxxxxc,..     .:lkOOOOOkoool;''.,;clodxxxxxxkkkkkxxddooooddxxkkkkdc:::::::cc:;,:lc:::::::::ccccc::;;;;;;;;,''',;::cc::,,''...''','''';lollodooodxdodkl'.....;ol:::cdOOOx:;ldc,,,''''''..''.                      //
//    0KOdodxxxkOkdoxkk0xc:::::;''.......       ......;ccc:;,;;,,,,,,'.     .;:::::,...   .'''',;lxxxxxxxxdol:;;;;;lO0OOOOOOOOOkx:.,:lddddxxxxdlcdkl,cxxdoooooodxx:,oko:;::::::;'''''',;:;;;;:::cc:::::;;;;;;;;'..'''';ccc::,.......'''''',:cloddxkkdodddxddl'.:lodolc::dO0KOlcdkl,''',''',;;,..                      //
//    KK0xdO0Oxxdoollldxdlc:;:c:,....   ............,;cloxxxxxxkkkkkkx:'.  ..cdk000x:'.....;cloddddxxxxxxxkkOO0000OOOkkkOOOOOOOkkl:o00Okkxxxxxd:;;;'..,:cloooool:,..';;;;;;::;;'......';::::::cc:::::::;;,,,;'........,ccc:;,.      .''''',cloooox00OkxdkOOOkl:okkOxlldxkOkxdllodc,,::,,:cclc:;.                      //
//    KK0kkOOkxxxdolodlcloo;,:l;.............,,'......',cxxxxxkkkkkkkxdl'   ..'o000O0k;.....,oxdddxdxddoddxkOO00000kdoodxxkOOOOOOO000000xdxxdxo;.........,cooc;'........'',''''........,,.';:;;:cc::::,..............'lkdc:'..      ......,cloooodkOKKxokKKOkdoxkOKOooOK00xlccloollloolldxdolc:..                     //
//    KK0kxxdxxO0Oolk0xc;,,''''','.....''....:o:.....'cdxxxxxxxxkkkxxo'     .lkO0OkkOkoccclooddddddddoccllooxO0OOOOd;;;;;;lkkOO0000O0OOkdoddddl;,'........':;'.............. ...,,..',...  .'..,lllc;,.  ..   ..,'..;lOWKko,.''............;:loodddxkkdldOOOkdoxkkOkddkO00klc;;ldxOkddxkkOxdl:,.                      //
//    KK0OkxdkO0KOolkKd;,,'''..'''',;;;;,....',;ccccoodxxxxxxxxxxkOd,.      .,:oko;;lllclclllddddollcc:::cokkOOOkoc:;;,,,,;:oO000OOOOkdoodoodoool:;,............,,...'.....  . 'od:,lx;      .';loxd,..      .,cxd;;okKNWWKl:dko:cl:. ... .;clddxxxdllllodxkklcdkxddddook0x:,..:ldkxddxk0KOdl:,.                      //
//    KK0OOOOOOOkxlcooc,'''''''.............'cddxdlllodxxxxxxxxxxkkxoc.      ...'....':lcllllooooollllc:::cloodddol:;,,,,,lxkO0000Okdoooooodddoc::;;:;;,,'.....','. .... ..... 'odlcod;     .':codxd,....  .'lOkkkOkkk0NNNX0OkkOOkdc.......;coxxxxxdllcclddxo,.cdl:cddooxkc. ....,oddxkO0Kkdoc;.                      //
//    KK0kk0KOkxdollcc;''..',,,'......;l:...';cldolllloodxxxxxxxxxkxkxl:'..;,. .....,;:lodxxdoloooolcc::::cllloooollllllodk00000000kdddoooddddoc:::::::lkk:..;xl.       ...:o;.'clllll,    .':oddddo;.:dc.'okOOOOOOOOOKNXK0000000OOx,.:o:.'oxxxxxxxdl:'.;oc,'...',;;;::c;'.      ,oxOOOkkkxdddl.                      //
//    KK0kxkkxxxxdoodxc,'...'''''.....,c;.......';cccloddxxxxxxxxxxxxxdl:,;c:,......';okk0Okxddooc::;;;;;;;;:lolodxxxxxkOO000000000OOkddddddddoc:::::cldOKxooxOo.       .;coxoccllllll:'.. .';:codddoolc;.'cox0OOOOOOOKNXK000000000Oxxxxdddxxddxxxxl...............',,'....    ..:xkOOkxxxxxxdl'                      //
//    KK0Okdooodxxllk0o,'......','................,,,,:lodddddddkkkxdlc::::;;;;,,;;::lkKKK0OOOOkxl:;,,'''';cldxddxkOOOOOO00000000000OOOkxddddxxxdl:lddodkOkxxkOl.     .:clloooodkkoldkl..  ..';,',odlcc:;,,:cx0O0x::x0KNNNXK0000000000OOOOkxo;'cxl'.       ................  ....:xkkkkkO0OkkOx,                      //
//    KKK0Odolclooccoxl,'.......'............','''.....',::::::oO00klcc::::::cloxkkkO00KKK00Okxxxoc:;,,',;lxkkkkkkkO00OO00000KK000000000OkxdxkkOOxoxkkkkkkkkkkko;..   ..;dxoldkOKKOOO0l.     ......';:::;;;:cx0d;,..;ckXNWNK0000KK00OO00Okd;'...,.         ... ..................;loxxddOKOxk00dc'                    //
//    0K0Okocc:::::::::;,....................,:,',;;''.......',o000Oxdol:;;:coxxxxxxxxxxxxxdl;',;:cccc:;clllodxdxkOO000000000000000KKK000OkxdlldxxkkkkOOkxdoodkd:,.     .lddxOKKXXXXXKl..;;.        ..:ol;:odl:'  ....oXKkkO00KKXKK0OOO0kxl....                   ..............',:lddlcoxxddkkOOdc,..;:.     .',.    //
//    xOkdollc::::::::;;,..............          .,:;,'.....,okO00000Okxc.':clodxxxddl,....... .;lddddxxxxxxxxdoodxk000000OOOkOOO0KKKKKK0Odl:'';cdkkxkOOol:;;:o:.       .;cldkKKXXXXXXx:cxxc;'..      ;Oxcckk,      .,dXkclk0KXKKKKK0O0OOOo,..                    ......','....',;clddlcc:lxxddO0xo;..ldc,...,:odc    //
//    lccloooolc::::::,...............            :x:,:llllclodk000OOk:.....'lxxkkkl'.         .oOOOOOOOOOkkxdl::cldO00000OkkkkkkO0000K0kdc''''',lxxxk0kc,;;;;;'  ... ...;:,,lxOXKOk00000OO00xo;  ..  ;xxloxx,   ...,:dOd:cdk0XOxkKK000000kl;...                 ........''''..,;cooooooc:lkkxx00:.. .';oxc.;xOkk0    //
//    :::ccoolc:::::::,..................      ,ddk0kkO0OkkxkkO0000kc,'.......,oOkOxdc.   .';looxO00000000xlc::::loxO0000OOkkkkkOO00000Oo:;'''',,;:ldx0kc,;;;;;'  ,:;''..',,,,,cOkc;ldk0000000Kl .;c'.;llllll'  ..,;;::::::;:xOo,ckOOO0000ko:'...          ..  ...........',,;;;;coodddoc:lxkOO00:....';ox:.;xO0KK    //
//    :;::cllc::::::::;,'.........    ..       'lllllokK0000000000Okdl,......:ldkkxo;'.   .cc:;;;::oO00000xc:::::dOO0000OOOOkkO0K0000000Okl,,',;;;;::lkkl::cc::;'';:;,''',,,,,',::;;:cdKK000KKKklc,,lxdoollll:;,,,;;;;;::::;;;;;,,;:odk0kxl'...... ...   .................';;;;;;cloddooc:ldxkOOOc....;:od;.'dk0K0    //
//    ldoc:clc::::::::;;,........             ..',;:cldkOO00000OOOOOOOdlllllokOkkxxoc;.   .;;''..,:lxk0000kol::loxO0000000OO0KKKK0000000Okl,,;;;;;;;;:clxkoccoxo:;::::;''''','',;;;;::d00kk00Okd:;''oOOOxolll:;;,,;;;;,,,:;,,,,,,,,,,;d0o'...............................',;;;;;;::cllccccldddxOOdlc;cxx:'. ..;x0O    //
//    dOklclllcc::::::;,'...',,''.            ....:lodxxkOOOOOOOOOOO000000000KK0Okkdc;.   ...,;;;coddk0KOkxoolloodxk0000000KKXXXKK000000Okl;;;;;;;;;;cdxO0xooxkd:;::::;''''''''',,;;;,cxkkxddxkxdl,'d0xccll;,,,,,,,,,,,',,,,,,,,,,''''','................................',;;;;;;cllllooc:lddddkkc',:cccod;.'lxkO0    //
//    OOkdooolcc::::::,....',,;;,'.            ..;oddxkOOOOOOOOdlllllok0000000000OOd:'.   ...,:clodxkkOOoclooooooddxxkO0OO0XXXXXK0kO00Okol:;;;;;;;;cldkkOOxddxxd::llc:;'''''''''',;;,':ddoolcdOOOkxx0Kd,,;;'',,,,,,,,'''''',',,'..........................................,;;,,;;codooddc;lxxxxxx;...'';xKd:lO000K    //
//    00Oxdoolcc::::::,''.'''','.........    ..;loooxkO0OOOkkdo,......:dk0000OOOOOOkxo'....,,;;::ccoOOOkdllccoollodddxkkkk0XXXXKKOxkkkxxolc;;;;;;:lodxxxkkkxxxxdllodol:'''',,,',,;;:;;lxxlldxk00KKXXXKd,,''',,,,,,,,,'''''''''...........................''''...'''.......',,'',,coollddc;cdxxkkk:....';xKxcoO0KKK    //
//    0K0xdooool:::::;;,'..'''............. .:dl;;;;;:oxxxdoc...........ckOOOOOOOOkdc:,''..',;:::;,l0K0Okko;;;;:clddddddxk0XK0000kxxxxxxxxl::;;ccoodddddxxkOOkxdddddddl:;,';:;',;:::::oOOxkO000KXXXXXKkl:'':c;,,,,,,,''',:;'............................';,''''''','.......'''''';:::::ccclddxxkOc....:lll,..coOKK    //
//    k0Odoooooool::::;,,'.''''..........    ,::;;;:cc,......   ....',:clodxxxkkOOOkxo,...';:llccccd00kdxxl,'..';lddddddxxO0OxxOOkxxxxxxddlcc:codxxdodxxxdxkkxddddddooool;;cl:;;;;::::o0KXXK0KKXXXXXXK0Oxlloo:,,,,,,,';:col'.........'...''..............'''''''''''.....'''''''''.';,''cdxkxddkkoc;.'dkl;'..;ck00    //
//    xOkoooooooooolc:;,'''''',,,'....        ...'ddc:;,.    .......:llllllodkOOOkko;'....,clloollcoxd;':o;......;loddoodxxxxxxxxkkkkkxxollccclodOKOxkOOxdddddddddddlccllllllllc;;;;;:dKXXXXXXKKKXXXXKKO0XKkdc,,,,;,,;okxdl'.........'''''''...';,.........'',,,,'.......''''''','.....'cokK0xdkk:...'dO0Kl.,dO00K    //
//    kkxllloooooooool:,,,,'',;,.......          .''....      .......,:llllloddxkxxdoc'.,clllooollc;..............,:oo::odxxxxxkkOOkkxkxdol:cclloOKKKK0Oxddddddddddoc::cloollllc;,'',,o0KXXXXXKKKXXXXKKKKXKkxc;;;;;;::dkkxl'.........''''''''''lko:,.......;:clc:;'......''''''',,,'.'',:lx0Okxkk:...;xO0Kklc;:kKK    //
//    OOklcodooooooooolc:;;::::,'...........     ....     .',. ........,:ooooddxxxxxxdlcoddoloooo:'...............',::;;:cx0Oxx0K0Okdxxkkkc.,:ccoOXKKKK0kdxddddddolc:::cokOdlodl,''''':dkKXXKKKXXXXXXKXXK0Okxc;;;;;;;;oko,'..........''''''';oxkkdc:,....';clloll                                                     //
//                                                                                                                                                                                                                                                                                                                    //
//                                                                                                                                                                                                                                                                                                                    //
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////


contract NUXZERO is ERC721Creator {
    constructor() ERC721Creator("NUX ZERO OE", "NUXZERO") {}
}

// File: contracts/manifold/ERC721Creator.sol




// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@openzeppelin/contracts/proxy/Proxy.sol";
import "@openzeppelin/contracts/utils/Address.sol";
import "@openzeppelin/contracts/utils/StorageSlot.sol";

contract ERC721Creator is Proxy {
    
    constructor(string memory name, string memory symbol) {
        assert(_IMPLEMENTATION_SLOT == bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1));
        StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = 0x2d3fC875de7Fe7Da43AD0afa0E7023c9B91D06b1;
        Address.functionDelegateCall(
            0x2d3fC875de7Fe7Da43AD0afa0E7023c9B91D06b1,
            abi.encodeWithSignature("initialize(string,string)", name, symbol)
        );
    }
        
    /**
     * @dev Storage slot with the address of the current implementation.
     * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
     * validated in the constructor.
     */
    bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;

    /**
     * @dev Returns the current implementation address.
     */
     function implementation() public view returns (address) {
        return _implementation();
    }

    function _implementation() internal override view returns (address) {
        return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
    }    

}

// File: node_modules/@openzeppelin/contracts/proxy/Proxy.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (proxy/Proxy.sol)

pragma solidity ^0.8.0;

/**
 * @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM
 * instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to
 * be specified by overriding the virtual {_implementation} function.
 *
 * Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a
 * different contract through the {_delegate} function.
 *
 * The success and return data of the delegated call will be returned back to the caller of the proxy.
 */
abstract contract Proxy {
    /**
     * @dev Delegates the current call to `implementation`.
     *
     * This function does not return to its internal call site, it will return directly to the external caller.
     */
    function _delegate(address implementation) internal virtual {
        assembly {
            // Copy msg.data. We take full control of memory in this inline assembly
            // block because it will not return to Solidity code. We overwrite the
            // Solidity scratch pad at memory position 0.
            calldatacopy(0, 0, calldatasize())

            // Call the implementation.
            // out and outsize are 0 because we don't know the size yet.
            let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0)

            // Copy the returned data.
            returndatacopy(0, 0, returndatasize())

            switch result
            // delegatecall returns 0 on error.
            case 0 {
                revert(0, returndatasize())
            }
            default {
                return(0, returndatasize())
            }
        }
    }

    /**
     * @dev This is a virtual function that should be overridden so it returns the address to which the fallback function
     * and {_fallback} should delegate.
     */
    function _implementation() internal view virtual returns (address);

    /**
     * @dev Delegates the current call to the address returned by `_implementation()`.
     *
     * This function does not return to its internal call site, it will return directly to the external caller.
     */
    function _fallback() internal virtual {
        _beforeFallback();
        _delegate(_implementation());
    }

    /**
     * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other
     * function in the contract matches the call data.
     */
    fallback() external payable virtual {
        _fallback();
    }

    /**
     * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if call data
     * is empty.
     */
    receive() external payable virtual {
        _fallback();
    }

    /**
     * @dev Hook that is called before falling back to the implementation. Can happen as part of a manual `_fallback`
     * call, or as part of the Solidity `fallback` or `receive` functions.
     *
     * If overridden should call `super._beforeFallback()`.
     */
    function _beforeFallback() internal virtual {}
}

// File: node_modules/@openzeppelin/contracts/utils/Address.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (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 functionCallWithValue(target, data, 0, "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");
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, 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) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, 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) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
     *
     * _Available since v4.8._
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        if (success) {
            if (returndata.length == 0) {
                // only check isContract if the call was successful and the return data is empty
                // otherwise we already know that it was a contract
                require(isContract(target), "Address: call to non-contract");
            }
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason or 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 {
            _revert(returndata, errorMessage);
        }
    }

    function _revert(bytes memory returndata, string memory errorMessage) private pure {
        // 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);
        }
    }
}

// File: node_modules/@openzeppelin/contracts/utils/StorageSlot.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/StorageSlot.sol)

pragma solidity ^0.8.0;

/**
 * @dev Library for reading and writing primitive types to specific storage slots.
 *
 * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
 * This library helps with reading and writing to such slots without the need for inline assembly.
 *
 * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
 *
 * Example usage to set ERC1967 implementation slot:
 * ```
 * contract ERC1967 {
 *     bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
 *
 *     function _getImplementation() internal view returns (address) {
 *         return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
 *     }
 *
 *     function _setImplementation(address newImplementation) internal {
 *         require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
 *         StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
 *     }
 * }
 * ```
 *
 * _Available since v4.1 for `address`, `bool`, `bytes32`, and `uint256`._
 */
library StorageSlot {
    struct AddressSlot {
        address value;
    }

    struct BooleanSlot {
        bool value;
    }

    struct Bytes32Slot {
        bytes32 value;
    }

    struct Uint256Slot {
        uint256 value;
    }

    /**
     * @dev Returns an `AddressSlot` with member `value` located at `slot`.
     */
    function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `BooleanSlot` with member `value` located at `slot`.
     */
    function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
     */
    function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Uint256Slot` with member `value` located at `slot`.
     */
    function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }
}