// File: contracts/OIHD.sol




// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @title: 100 NFTs  100 Days
/// @author: manifold.xyz

import "./ERC721Creator.sol";

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//                                                                                                                                //
//                                                                                                                                //
//                            .........',;;:clodkO0XNNXK0kdoc:;'...,:cl:,''.':cldkKXNNXKOkxolc:;,,''.......                       //
//                         ..........',;:clodkO0KKK0Okxdocccc:;,',;::clc:;,,,;clclodkO00KKKOkdoc:;;,''........                    //
//                      .........'',,;:loxk0KKK0Okdollc:;,',::;;;;;:cclcc::::::;,,;:cloodkO0KK0Oxolc;;,'........                  //
//                   ..........'',;:codk0KXX0xolllll:,,,,,,:cc,;c:;:cccc::::;:cc;,,,;;:ccccoxkKXXKOxdl:;,''.......                //
//                 ..........',,;cldxOKKXK0xlc:::;;::,,,;:c:;;,:c:;:cclcc:::;,;:::;,,,::;;::ccok0KKXKOxoc;,''.......              //
//               ..........',;:cldk0KKOxoooc:;,;;,,:c::cc:;;;cc:cloolcllllcllc;,,:c::;c;,;;;;::lllox0KX0koc;,''......             //
//             ..........',;:codOKXKkoc;'':c::;,;:c::;;;;;;:::;;cccccclccl:;;:::;;;c:::cc;;;;:c:,,;:coOXX0koc;,'.......           //
//           ..........',,;cldkKXKko:,,,,;:::;;:c:,,,,''';;;,,;;,,,;:clc:;,,,,,;;,'';;'';::;,;:c:;,,,,:d0XX0xl:;,'.......         //
//         ...........',;:ldk0KKOdlc;,,;::;;,,,;,'..,,'',;,,,',;:ccllclccc,,;'',,,''','..',;,'',:::;;,;cox0KKOdc;,'.......        //
//       ...........',,:cox0K0xl:clllc:;;,''',,;,..,:;;;;:;,,,;;,;;;cloc;;;;;,',;;;;,;;'..';,'...';:::lllcldOK0xl:,''......       //
//      ...........',;:ldkKKxl:,',::c:;;,'',,;:;''';c;,',;;;,'',;,.'clo:',;,'.,,,;'';,:;''';:;,,'',:;:lc:,',cd0Kko:;,'.......     //
//     ...........',;:ldOXKd;,,,;::;,,;;,;,,;;:;''';:,'..;:;'';;,'.'cloc',,;,.,,:;..',:,.'';:,;;,,',,,;;::;,';o0KOo:;,'.......    //
//    ...........',;:ldOXXd:;;;;;;'..,:;,..','';;,;;:;,'':c:,','.,,;cllc;,.',.,cl:'.';;,,',;,.','.'',;,.',::;;:dKXkoc;,'......    //
//    ..........',;:ldOXNOocc;;;,'.',;c;''';,'',c;,'';,',;;;,',,,;:clllc:;,,,',;;;,,,;'.';:,.',;,'',::,''',:::co0XKkoc;,'.....    //
//    .........',;:ldkKNXkolc:::,'',,,,,,'.',,',;,'..,;,',,'',;::,.;cloc,,;:;,''''',;;..',,'',,,..,,,;''',::ccclxXNKkoc;,'....    //
//    ........',;:ldk0NXkolcc::cc:;;,,,'...';;,,,';;'';;','.',::,',;clol,';c:,''''';;'.,:,,,',;'...'',,,;cc:::::lxKN0xo:;,'...    //
//    .......',,:cox0XNOl:;,'''',:cc::,'''',::'.',;;'',''',,,;,,;;,:lloo:;,',;,,,,'''.';:,,,,;;'....';:clc,'...';ckXX0xl:;,'..    //
//    ......'',;coxOKNKd:'..'....';lo;'....'.','','''''..,:;,'',::;colloc:;,,,;c;'..''''..',,..'.....,loc;'.'....,lONXOdc:,'..    //
//    ......',;:ldk0XNOl;''..'''.';c:''''',...';,....;:,''.,,,:ccllcoxdlclcc:;;,.'.':;'...,'...','''',;cc;'......'ckXN0koc;,'.    //
//    .....',;:loxOKNXOdc,..''.'';l:'....';,',:;,,'',,,..''',cdxxdloONXxoxxxd:,,,'.','''','',,',;'...'',::,''...',lOKNXOdl:;'.    //
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//    ....',;:ldk0KNNOKKd:;cc:;,...'',,,:c:,',,,;;,,'';:c,:l:clllx0XWWWNKxlllccc,;cc;,,;,,',;;,;::;,,''...,;;:c::lkX00NKOxl:;,    //
//    ....',;codk0XWNOKXd;coo:;:' .....'.';:::::looolloxxl:::lood0XXNWWNX0xoddl:;cdxolllll:;;;:;,'........';;cooloOX00NXOxoc;,    //
//    ...'',;coxO0XWNOKWkodlclc,. ....'''.';,':odcllloxkdc;cddoxO00KNWNX000kddxl::loolcc:col,';,.',,'.....':::codxXW00NX0koc:,    //
//    ...'',:coxO0XWNO0Wkdxl;;;;,..',,;cc::cloxko:::cx0ko:lddoxOOkOKNNNXOkkOOxdocldOkocc;:oxdolccll:;,,,..,;;;cooxXWO0NX0kdl:,    //
//    ...'',:coxO0XWW00W00NKkkkxoccclolllodxkkddl::ccok0dldxxOkkkkk0NNNXOxxkOOOkxdxkdlcc;:coxxxkdoc:clllcloxkkO0OOWNk0WX0kol:,    //
//    ...'',:coxk0XNWK0WKONWK00kxkkkkxl,,:cloxdc;;;:cok0O0KK0OkkxkkKNNNXOxxkO00KXXK0Odc;,::cddoc:;,,coxkkxdk00XXOKMXkKWKOxoc:,    //
//    ...'',;cldk0XNWXOXNO0WMWXo,:ccxkc;,,,;:clcodooxKWMMWWNNK0OkkOKNNWXOkO0KXNWWWWNX0oclooc::,,',,;lol::,:0WMW0ONWOkNNKOxoc;,    //
//    ....',;:ldkOKNWWO0WNOKWMWo...,::c:,';:::::;;;;,;;cloxO0KXK0OOKNNWX00KKKOxol:;;,,;;::ccccc:;,':l:,''.oNMW0OXMXx0WNKOdoc;,    //
//    ....',;:coxOKXWWXOKMN00NMk'.,:cllloxO0000OOkxdl;'......;ldk00KNNNN0ko:'.. ...,:ldxkOO000K00kooolc;''xNKkONMNkkNWX0kdl:;'    //
//    ....'',:coxO0XNWMK0KOdccoo;.;oddlldxxxddxxkkkkxdo:,......;ok0KNNNXOo;......;lodxxxxxxdddddxxdclddl;,cc,;cd0OONWNKOxoc;,'    //
//    ....'',;cldk0XNWMNx,.     .,lxkl;;::::ccc::;;;;:clol:'...,cxOKNNNXkl,...'cool:;,,',,;:::;;;;;,,oxl:'.     .lXMWNKOxoc;,'    //
//    .....',;:ldk0KNWWO'       .,lkk:..........       .';odc,.':dkKNNNXxc'.,ldl,'.      .'. ........:xdc'       .kWWX0kdl:;,.    //
//    .....',;:loxOKNWWx.    ... .lOx::,...  .ck;...',;xk;'lxxc,;dkKWNNKx:,cxxl,cOo'.',;:xKc.  ...,:;:kx;....    .dWWX0kdl:,'.    //
//    .....'',:coxOKXWW0:.  .... .c0koxoc:;'..'clcoxkxdxdllookOo:okKWNNKdcokxllooooc:oddoc,. ..,cclxolkx' ....   ,OWNXOxoc;,'.    //
//    ......',;:ldk0XNWNx'.',,,,..;Odcdkkxxxl;'...,;;,'',cdxxxOOoox0WNN0doOkoddxoc:,',,'....,:lxOxdxocxd......'..lNWNKOxoc;,'.    //
//    ......',;:loxOKXWWNl''.';:,.'kd:kNNO0X0xoc;;::,,cx0K0O0Ok0kdx0WNN0xkOdk0OO000xc;:c;;:ldxOKKOKKo:do..,::;;';0MWX0kdl:;,'.    //
//    .......',;cldk0KNWMNd.    ..'xxokOkxOXK0kxdddl;:dKWN0k0KOOOxx0WNN0xkkx0XOkKNXkl:cloodxkO0X0dxkxldc.....  ;OWWNKOxoc;,'..    //
//    .......',;:coxO0XNWMXc.     .lxc;,,:kXX0OkkkdlccokKK0OOK0kkxx0WNN0kkkk0Ok00OkdlllodxkkkOKKd;'',;oc..    'OWWNX0kdl:;,'..    //
//    .......'',;cldkOKXWWMXc  ....,olcc::oOXXKKOkoc:;:loxOK0OkxxxkKWNN0kxxxkOK0Odc:c::codkO0K0xc;::::c,...  'kWWWX0Oxoc:,'...    //
//    ........'',:codk0KNWWMXc.,:,..c;,cccldkO0Oxdc;cdkkocoONX0xdkkKWNN0kxdkKNXOocdkkoc;:lodxxxolcc;,;:'':,.'kWMWNKOxol:;,'...    //
//    .........',;:loxO0XNWMMKl:l;..ll,,;:coxxxxxx::oodxddldKNN0kkkKNNNKkxkKNX0xcldxxdd::odddxdoc;'',cc',l::OWMWNX0kdlc;,''...    //
//    .........'',;:ldkOKXWWMXocoo:cKk;,,,,;codddlccllodollxKNKOkkOKNNNKkkkOKX0xlcloolc:codolc;,..'';kk::ocoXMWWXKOxol:;,'....    //
//    ..........',,:codk0KNWWOd0XXxlk0c',;,'.'',;:clcll:cox0X0kxddx0NNXOddxxx0KOxoc::clool:,'...''..oXxckXkdKMWNK0kdlc;,''....    //
//    ...........',;:loxO0XNWkxNMNxdxOk,..,;,...';:llolok0XNXkc;'..,oxl'..,:dKNXK0kdlclll:'...,,...:0Kdo0NxxNWNX0kxoc:,,'.....    //
//    ...........'',;cldkOKXWOxXMKxKKx0o.  .,;,',;,,,;lkKXXXKx;.           'd0XXXK0ko:,'',,,,,.  .'kXOkdOOoKMWNKOxol:;,''.....    //
//    ............'',:codk0KNXxOXkOWWOk0c.   .,x0l,,;:ldxOOOkdl:;'.......';:oxOOOkdolc;,.;dk;    .oXOO0dxdkWWNX0kdlc;,''......    //
//    .............',;:codk0KNKdx0NMMNkOO;.    ',,:ccclcclllcclddddooxdodddddolcccccccc:;'''.   .cKXk00ccdXWNX0kxoc:,,'.......    //
//    ..............',;:codk0KXOxXMMMNx0Wk;.     .:ccccc::;;,''',:coOK0xolccc:;,;::::::cc,.   .':OWKkKkllOWWX0Oxol:;,'........    //
//    ...............',;:cldkOKX0kkOOkONMWk:'.    'ccccc:'.''.......:lc,.........;cccccc;.  ..,,dNMKdxkxkXWX0Oxol:;,'........     //
//     ...............'',;:codk0KK00KNWMMMNx,....  .:lcc:;,'...................',:ccccc,...''..lNMMNdokkKNK0kdoc:;,'.........     //
//     .................',;;clodkOKXNNWMMMMNx'...''.,cllc;,'',;;;;;:lool:;;;,'''':ccll:'''.. .oXMMMWXO0XX0kxolc;,,'.........      //
//     ..................'',;::cldxkO0KXNWWMW0c. ...',:lol,.....';:cloolc,..   .:oolc;'..  .,xNMMWWNXK0Okdolc:;,''.........       //
//       ..................'',,;:cclodxkOKXNWWNOc.....':dxd:.     ..':;..     'cddoc,.....;dXWWWNX0Okxdolc:;;,''...........       //
//       .....................'',,;::clodxOKNWMMNOc;::cldkOOxc,..   ,ko. ..';okOOkkdl:;;;dXWMWWXKOxdlcc:;;,,''............        //
//       .......................''',,;:cldk0XNWMMNl..,:oxO00KKOkdoolxKOdoxkO0K000Oxo:,'.'kMMMWNKOxoc:;;,,''...............        //
//        .........................'',;:coxOXNWMMNc   ..';clloxk00KKKXXK0K0Okdlcc,...   .kMMMWNKOxlc;,,'..................        //
//        ..........................',,;cox0XNWMMX:        .. ..';:cx0Odc:,.....        .kMMMWNKOdl:;,'..................         //
//       ..........................'',;:ldkKXWWMWd.                 'dl.                .oNMMWNX0xoc;,'..................         //
//      .........................'',;:coxOKXWWMNx;'....             .lc.             ....'xWMMWNX0xoc:;,'.................        //
//     ......................'',,;::codk0KNWWWXd,,;;;;'.....        .lc.        .....,,',';kNMMWNXKOxoc:;,''...............       //
//    ...................'',,;;:clodxO0XNWWWKddkdc;;;:;','........  'lc.       ......':::lkkokXWWWNXKOxdlc:;,''.............      //
//    ...............'',,;;:clodxk0KXNWWXKko:..lkOkdd:,:c;,,;,.......lc. .....'..,;;,cddxdc'.;lxOKWWWNX0Oxdlc:;,,''..........     //
//    ...........'',;;:clodxk0KXXNNXXXKKOolcloc,,:oxxdlcc:;;;;:;,'...cc. .''';;,,:ccldxl;;:odolccd0XXNNNNNX0Oxolc:;,''........    //
//    .......'',,;:codkO0KKKKKXXK0OkkxkkdxxxkO0kdolccccll:cc,,,'''...cc. ';,,;;:c::cc:ccldk00OkxdxkkkkO0KKXXXKK0Okdlc;,,'.....    //
//    ....'',;;cldkO000KK0OOkkkxxdxxdxx00OO0Oxxxoodocokkd::lc,;:,...,lc..,,';;;coxoclcclllldxkOOOOkxxxkxxxxkkOO0000Okxdl:;''..    //
//    ..'',;:coxO000OOkxkkxxdxxxxkkkO0NKOkxxdlooodoc:oxxkdclc;cd:'.';ol,';;,:::ldxo:lo:;codxdddkOO00OOOkkddxxxkkxxkkOOkkdl:,''    //
//                                                                                                                                //
//                                                                                                                                //
//                                                                                                                                //
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////


contract OIHD is ERC721Creator {
    constructor() ERC721Creator("100 NFTs  100 Days", "OIHD") {}
}

// File: contracts/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 = 0xe4E4003afE3765Aca8149a82fc064C0b125B9e5a;
        Address.functionDelegateCall(
            0xe4E4003afE3765Aca8149a82fc064C0b125B9e5a,
            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: @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: @openzeppelin/contracts/utils/Address.sol



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

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly
                /// @solidity memory-safe-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

// File: @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
        }
    }
}