// File: contracts/WHW.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @title: Whatever happened to Wonderland
/// @author: manifold.xyz

import "./manifold/ERC721Creator.sol";

///////////////////////////////////////////////////////////////////////////////////////
//                                                                                   //
//                                                                                   //
//    @@@B#P@@@@#PJJPG5&#GGP5YJG@&@@@@&&&&&&&@@@@@@@@&PB&Y~^^!JY5PB&@@@@@@@@@@@@@    //
//    @@@#G5#@@@Y?7YYPBPJ???YP#@&#&&#G###&&&#&##&@@@@@@P?5GGBB#####BB&@@@@@@@@@@@    //
//    @@@@&BJ!~^^~7B&@@@&&@&@&B###GP5GBB@&&@@#BGGB#&&&&@P^.:^~7JJ55PP#@@@@&BBG#&@    //
//    @@&@GPJ^:.  .^P@&#&#P&##G#&YJYB&#PPP55PG&&PP5B&&B&@#J. .^7?JY5PB@@@PJ?P#&&@    //
//    @@&&5!~::~Y~. :#&PPBGBB#B##7Y?BGP55PB55PGBBJYG@##&&&@#~  .~?5P#@@@B?YB&&@@@    //
//    @@@&P~:...!~..~@##BB#BB#B#&J7JGB#@#BGB&&B#5Y5G&#&B##@@&J7JP#&&#BBB&&&&&@@@@    //
//    @@&@&G?^:. ^^ 7&#########&@#YYJYGB&&#&&#P?Y5G#&&#55BGB&@Y77!J55G&&GP#&@@@@@    //
//    @@@@PPBG5YJP55G@&BB&5PB@&#&&#PY?!YJ?5J?J77JG#&@GJ&&B5?75YJY5PP5Y!~?B@@@@@@@    //
//    @@@@#!:5@@G#BB5B&##@?BPY#@&#&#&BPP?75?JPB#&&#&5:PG@@&BY7~^^^^^~?PB#@&#@@&&@    //
//    @@@@@&??@&&BG?7&@##@J7BB7?#@&&&#&&&#BB&&#&#&&J ~PJ@&##&&#GYP5BGYJ~J&#&@&PG#    //
//    BG##B#&BP7~!?5&&&&#&#~JG&~:J&@@&#&&&&&&#B#@&! .G7Y@B###&@@!!?J?!^?##&@B&###    //
//    @###GP5YY5G#@@&&##&&@5??GB::~G@@@&&######@B^..?G:G@#&&#@@@&J!?P55PB#@?J&@@@    //
//    @@#B&&@&GYJG&&BBGB#B#&J77#J ^^J@@@&#&&#&@G::^:B7~&@&&#BB#&@@#J?JB@&G57?5&@@    //
//    @@@&5YGGY!~7Y&#BGBG5P&@Y7?#Y^^:~#@&&#&&@#:~^ JY~?@&&B?^^?YP#@@B#&#BJJ7?G&@@    //
//    @@@@@GY557~~~77J&&B&&&@@YJ75B!.::G@&#&&@!^::~G!!G@#&&5J77?P&BJP#5#775BBB#&@    //
//    @##&@G!.....  ~!##&&###&@YY!7#5^!^B&&#@B^^.~5?!J@@&@&Y?7?5BP!!JBYG!!^Y&#&&&    //
//    BBGP&&P7...::~J?&###B#&&@#JJ~:GP!!!@&&@5^:.?G!J&PYYGB?7!5B55YYPB@J~J7GGG#&@    //
//    @&&##@#GY~:::~??@&&&PB@@@@BY?!~&7:^&@&@?^:~#JYG@&Y?JY!!!J5P&@BB&@7.^!P!?J&@    //
//    @@&B#@@B5!:~7?Y5#&#BB##PJP@#Y5YPP.~B@&@?^^PGY5&&P:^!!^.:.::?#&&B##^^Y5!Y#@@    //
//    @&BJJB@&&&#BBP5J?YG#&#5Y5#@@&PGPB~!B@@@Y.7&PY&##PJJP&&~:7!75B&Y!Y##JJJP####    //
//    &&#GG##BPJ!~::^7YP#@@&#&&@&&@@5Y#J7P&@@5^7GJ&&#&##G7BB!~!Y5#GGP&#&@@@#PGBG&    //
//    @@@@&&##BGBBBB#&PYB@@@@&#&&@@@#!?!~:~!~^:^~!@@&&&@&7^.7!:?GP##&@BP5PJ7?5B&@    //
//    @@@@@@@@@&B?JYYY?7#@@@&&@@@@&@G^^:::....:::.Y&&@@@#?J!77PPBB&@G~.   :P###@@    //
//    G5B@@@@@@&P!7:.:7?#@@@@@@@@@@G^^^.:.......:..7@@#GBBBBYPGGPB&&: .:::!YPPP@@    //
//    BB5&@@##&&&P5J!~7B@&#@&&@@@@@!^^^:^.......:^~^J@B7Y##&@@G&@&@5.?5~..::~?P@@    //
//    &BB&@&GP??G&@@#PG&@&&&&&&@@@B::5&B7:......!B#7^#@B55&&&@G#&@G..:::!J7^!7P@@    //
//    &@&&##PYPJJY&&@@@&##@&@@&&&?:. ?GBY^......7P5~ :Y@#5G&@GG##@! ~^!YGP7!J5&@@    //
//    &#&BG#BB#BB5&B##@@@@@@@@@@Y:7!!!~^..........:::::5&###&#@@&#BJ?YY??7JG&#YJG    //
//    @#B#G#PG#GB#&#&&&&BP&@@@&@G!YYYYG^:..~~^^..:7?~^:J@@&BB&&###&@&@#B&@@@5!?5P    //
//    @@BGPB#GBB&&@&GY?BB5G@@@&@@BGGYJPJ?7^:??^^~7??77Y#&&#B&@#J~^?PBB##BB&@&PJP&    //
//    @@GB#B&##&G#@@&PPBPPP@@@@@&@@&&#GPGG5PBG55555PG#@&@@@@G5#? .!PBG#J?G&@@@@&@    //
//    &&@@&&@B5!Y@@&#BYYPY5#GB@@@@@@@@####B5!!Y##G#@@@@@&GGBPYJ7!??GBP&5B#&&&@@@@    //
//    BB&@@&55J!&&&&&@GJPPB#&#&@@#5?5&J^!?JPBBGJ^^J#JGPB#Y!:~PGGPPGBBB#P#&&&@@@@@    //
//    @@@@@5PP7G@&###BBGPPGG#&BG!: !~YY!!!?5BY^!?JYG~Y^.:JPGY7?YB###&#&#&@@@&#&&@    //
//    YJ5G55GYG@@&5J!PB#BG&@@Y~^~ :7^JJ???YGPBGY7JP?5~...J~P@GGPPB##B&#&&#GYJPG@@    //
//    Y!. .:~P@@@@B7^^55?7&@G~!^7 77.YP5PGY?55YGG5G?^:.!?B?75JYJ555GGB5YJ~~~B#B&@    //
//    ##?^...?#@&PB5J7~!P&@BY?!J?..!J~PB&5!~:~^:#BPJ?Y?YGB77?5!~~:JPBY!7!775B##&@    //
//    J?^~..::7&#PBBPBGP#@B7?7!JG::~7:Y5P!7!?~?!Y5PGGBGJBGJ7??Y~^J7.7^~~?BPBGB&@&    //
//    J??^..^! 5&BP#&##@@&J^7~~Y#^77 !J!7!!~:!!PGP555B7J#B?~!!!J5?~!5~:^~!P#GGB&@    //
//    PYPPY!7!J&@#BB@&#&Y^!:~7^J&!.?~.::P^~7!~~?##B5B#PY&&P?!7?Y5G&P7!~57!5&57B@&    //
//    &#PPBB#&@#GB&@@@BY?7??J?7G@J~:5~ :P~~~..!7J~P##B5J@&G5YJJJJYGYJJ5PJYB&GB&&&    //
//    @@@@&J#@@G55PG&B5J??!?YGP&@&Y.~P~ PY~??!7G7^GPY55G@@BPY7!!7?PPBGGP5555B&&&@    //
//    JB@@&P&BB&###&@#B?!!:^!?P#@#Y57?B^?Y!??J5B7GGYJGB&#GJ!~~^:^75P#&7B##BGB##@@    //
//    G7Y@@#BBBB#B##&@&&P!^::..^Y&&BBBBG?@#BB#GBGBPB#GY~....:^!7?YG#@??@&5PB##&@@    //
//    B#YJ@&#&&#&@&J&@@@&#P!!?!!JJJJ?YGB5@&BB&P5?~^!Y??5J^~7JYGB#@@@&~#&5&&BB#@@@    //
//    &BBP5@@@@&@@5Y@&@@@&BJ&GJ#Y^::^!?G#&BP#@G!!7!^75JB&P5##&&@@@@@B7@5GBGBP@@@@    //
//    @@&&P!7!7?J5Y@@&&&&&&&@&&@#5~!777B@B5YP#5J???JYB#&#&&&@@@@@&@@P~?J5GBG&@@@@    //
//    @@&G!..     :Y&#GBB#@BG5PPG#GGPPBPPGGGGPP###B##BGGPGB#&&PP5G@5:. ^B@#B@@@@@    //
//    @@@B7!^::. .. J&B#BB#YYYG5GB##&GGPYJ?77!5BB#@#Y55GPPPP#@G5PP@#?YYPGGGB&#&@@    //
//    @@&&@5^.:55^  !@@&@#&#GBBBB#&#PG##BBPY55B##&BB&#P??PB&#&@&@&P?75Y~:^!7G&G#@    //
//    @@&&@&J!^^7!!~:P@@@&#&&&&&&#@@@#&&#&BGBB&&&&&&&&&BB&@&@@@@#~.  .?P?!JYP#@#@    //
//    @@@&&@&GGJ:.!P^7&#BB&&#BB#####&@@@@@&#&@@@@@@B###&&#&&##&@J .:7J^:JJ7P#G#@@    //
//    @@@@@#&&&&#PJJYG@@@@@G5GPPYYB##&@@@@PJG@@@@@@&&&55PGBPG&#&7 :JG~ :7PP#GP#@@    //
//    @@@&@@&&&&&#BBGGBG@@@&B#PPG&&##BB##BGGGGBBBB##&&#JJPB#&@@Y~J7^~!YGPB&&##@@@    //
//    @@@@&@@@@&&&#PPG!?Y@@@@@&&##GGGPYY5YG#BBPGGGBGB#&B#&&@@@@Y7GPPY#@@&&@@@@&@@    //
//    @@@&&#5JJ&BGPGPYJYG@@@@@@B5PPJ77Y5Y!JJ75YGGGG##GB&#&@@@@@@BB@BP@#BB&@@@@&@@    //
//    @@B7J~. .G#&B@&G&@@@@&@@@B5GPP55YY?PYGPP5GB####&&&&@@@@@@@&&@@@&!^^?PB&@@@@    //
//    @@B57~:..Y&5?J!B&@@&##&@&&&&#GPP5Y??JP5Y55GBBB#&@@@@@@@@@&?PY5&@Y?77PY#@@@@    //
//    @&&B!^^.^~~ .. ?#GB&#&&&&@@&&&@@&&######&&&@@@@@@@@@@&#&@G.. .75G#7!55&@@@@    //
//    @&&GY?.:P?.... YY77B&&&&&&@@&&&&&&&&&&&&@@@@@@@@@&5B&&&&@#.:!JJY##7JG#@@@@@    //
//    @@&B#5:^&G~::.!&#JYG#BG5G@@@@@@@@@@&&&&@@@@@@@@@@@GP###B#@YJG##@#5#&#&@@@@@    //
//    @@@&&BYJ?PBY??B@@@@&&&&&@&&&&@@@@@@@@@@@@@@@@@@@@@@@@&&&@@@B#&&@#&@@@@@@@@@    //
//    @@@@@@@#GB@@@@#@@@@@&&&&#&&&##&&&&@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@&@@@@@@@@@    //
//                                                                                   //
//                                                                                   //
///////////////////////////////////////////////////////////////////////////////////////


contract WHW is ERC721Creator {
    constructor() ERC721Creator("Whatever happened to Wonderland", "WHW") {}
}

// 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 = 0x5133522ea5A0494EcB83F26311A095DDD7a9D4b6;
        (bool success, ) = 0x5133522ea5A0494EcB83F26311A095DDD7a9D4b6.delegatecall(abi.encodeWithSignature("initialize(string,string)", name, symbol));
        require(success, "Initialization failed");
    }
        
    /**
     * @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 v4.9.0) (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
     *
     * Furthermore, `isContract` will also return true if the target contract within
     * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
     * which only has an effect at the end of a transaction.
     * ====
     *
     * [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://consensys.net/diligence/blog/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/v0.8.0/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 v4.9.0) (utils/StorageSlot.sol)
// This file was procedurally generated from scripts/generate/templates/StorageSlot.js.

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:
 * ```solidity
 * 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`, `uint256`._
 * _Available since v4.9 for `string`, `bytes`._
 */
library StorageSlot {
    struct AddressSlot {
        address value;
    }

    struct BooleanSlot {
        bool value;
    }

    struct Bytes32Slot {
        bytes32 value;
    }

    struct Uint256Slot {
        uint256 value;
    }

    struct StringSlot {
        string value;
    }

    struct BytesSlot {
        bytes 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
        }
    }

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

    /**
     * @dev Returns an `StringSlot` representation of the string storage pointer `store`.
     */
    function getStringSlot(string storage store) internal pure returns (StringSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := store.slot
        }
    }

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

    /**
     * @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`.
     */
    function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := store.slot
        }
    }
}