// File: contracts/KN1KN.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @title: KILLER NAPKINS CRUSTY SOLOS
/// @author: manifold.xyz

import "./manifold/ERC721Creator.sol";

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//                                                                                                                                          //
//                                                                                                                                          //
//     ___  __    ___  ___       ___       _______   ________  ________   ________  ________  ___  __    ___  ________   ________           //
//    |\  \|\  \ |\  \|\  \     |\  \     |\  ___ \ |\   __  \|\   ___  \|\   __  \|\   __  \|\  \|\  \ |\  \|\   ___  \|\   ____\          //
//    \ \  \/  /|\ \  \ \  \    \ \  \    \ \   __/|\ \  \|\  \ \  \\ \  \ \  \|\  \ \  \|\  \ \  \/  /|\ \  \ \  \\ \  \ \  \___|_         //
//     \ \   ___  \ \  \ \  \    \ \  \    \ \  \_|/_\ \   _  _\ \  \\ \  \ \   __  \ \   ____\ \   ___  \ \  \ \  \\ \  \ \_____  \        //
//      \ \  \\ \  \ \  \ \  \____\ \  \____\ \  \_|\ \ \  \\  \\ \  \\ \  \ \  \ \  \ \  \___|\ \  \\ \  \ \  \ \  \\ \  \|____|\  \       //
//       \ \__\\ \__\ \__\ \_______\ \_______\ \_______\ \__\\ _\\ \__\\ \__\ \__\ \__\ \__\    \ \__\\ \__\ \__\ \__\\ \__\____\_\  \      //
//        \|__| \|__|\|__|\|_______|\|_______|\|_______|\|__|\|__|\|__| \|__|\|__|\|__|\|__|     \|__| \|__|\|__|\|__| \|__|\_________\     //
//                                                                                                                         \|_________|     //
//                                                                                                                                          //
//    ::::::^^^^..:..::::^:::::::..::^^^^^~~!!!~!777?JJJY55PPPPGGGGPP5555PPPPP555555YJ?77777!~^^^^^^~~~~~!!77??JY555YY555555YY              //
//    :^^^::::..:::::::::::::.....:^~~~~~~!!777JJYPPGBGGGGGPYYJ???77!777?~^~~!!!7!77YJY555PP5J?7!!!~~~~~~~~~!7??J5PPP5555555PP              //
//    ~^:^^^::::^::::^^^^^^:::::^^~~!77??J555PGBGGGPJ77?!~~^::.      ^!7.          :^..:^~!?5PGBG5YYJ?77!!~~~!!!77??JJ?JJJJJYY              //
//    ^^~~^^^~^::^^^::^~~^^^~!~!!7??JY5PB##BG5J7!~!Y~^:~?!~^:.       ~5!.        .!! ...   ...^!7YGBBP5J?77!!!!~~~!~~~~~!777??              //
//    ~^^^^~~~~~^:^^^~~~~!!!!!?JYYPGB#BG5J!~~^!!^^7YY^ .??~^^.    .:?PY:.    .:^:!7.::.   ....    .~?5G#GP5YJ?7!!!~~^^^^^~~~~!              //
//    ~~~~~~!!7~~~!~!!!!7777?Y5PGB#BP?!!~^^^^^7?^.7~J!  ~~.^?^..:7YJ?7?J^:^~~!~~!7:.     ::~!:...     :~JJ?JJY55YJ?7!^^^^:^^^^              //
//    ^!!!~~!77!!!~^^!7??J555PB#BP?~^::!J~::..!JY~!.7?~:^?~?5?7?YY55555YJJJJJ??JJ!^^^~~~!!?7~~:. ..      .:::^^!?Y5PP5J7~^:.::              //
//    777!!!!!!!!~!7JY5YYY5PGB5J!^~!!!~~??:..:~:YJJ?7YYJ?Y5P5YYPPPBBBBGPGG5PPPPGPPPPPP5YJJ!~:...:. :.       ..  .:^!J5PPPY?^..              //
//    7??77!!!!!77?JJYYJYPGPJ!:.~?Y5YJ?7~!?!^~?7YY55PPGGGGPPP?~~7!77~!!..:....::^!JPGGBGGPY?!!^^^... ...            .:~7JPGPJ!              //
//    77777!!77????JYYYPG57~~^~~7JYYYYJ??!?P5PGGPGB#BBG5?!:^^   ..:^!!~.     ..   .^^^!7?YPGP5J7!!~^~~^:              ..:^!JPP              //
//    !77777????JYY55PGP?~77!^~?JJ?77?Y5PPPPGB###BBP7~^. .:!777?JJJYYYJ?!~:.           . .:^?YPP55YJ7!!^::..           ..  .:~              //
//    7??7777??JJ??YPGJ^^!JYY5??J?JJY5PGGGB#&&#GY7~: ..^7J5PBB#####&&&###BG5J!^         . .  :^?5PGG5J!!!!~~:...       .:.                  //
//    ?77???777?JJPBP7~!!777???5PPGGGGB##&&BP5?~:   .!YG#&&&@@@@@@&&@&&&&&&&&#GY!:            .:~7?YPGP5?7??7!^:....    .                   //
//    ?77???777?JP#P!~7?JYJ?77?YPGBBB#&&#G57~:.   .!5#&@&&&&&&&&@@@@@@@@&&&&&&&##P7.            .:::~7YGBP55YJJ7!~~^:..                     //
//    ????7!!?J5BBY!!?7JYJ???J5GB###&@&#5?^      ^Y#&@@@&&&&&@@@@@@@@@@@@@@@&&&&#&#5^                .^7JJ5GGGGPP5YJ??!~:                   //
//    ??77777J5B#5J!7?7??Y55GB###&&@&#GY!:      ~G&&&&&&@&@@@@@@@@PJB@@@@@@@@@&&&&&&P~                 :!~~77JPGGGGBGBBP?^.                 //
//    !!!77?JYG#5?JYJJYYY5PB###&&@@&#P?~:      ~G&&&BP@@@@@@@@@@@@#G&@@@@@@@@@@&&&###5:                .^.:~~~7J!??JJYPB&G~.                //
//    77!7?J5GB5J7755555GB#&&&&&@@@#P?~:..   .^5&@@@@&@@@@@@@@@@@@@@@@@@@@@@@@@&#GBBBG!                .::^^^!!!~^^^^~!JG#7:.               //
//    JJ??J5GGY????J5PPPB#&&&&&@@@&GJ!^::^...:7G&&@@@@@@@@@@@@@@@@@@@@@@@@@@@@&#GBB##G!                :^~:.:~!^...^!7??7~:..               //
//    J???Y55J???JYY5PB#&&&&&&@@@&B5?!~~~~^::^7G&&&@@@@@@@@@@@@@@@@@@@@@@@@@@&&BBB###P!               .::^:::^:::.::^^^:...  .              //
//    ???JYJ???JJJPPPB##&&&&&&@@&BPY?7!~!!~~~~75#&&&@@@@@@@@@@@@@@&@@@@@@@@@&&&#####BY~              ......... .......   .                  //
//    ?JJ??7?JY55PPGBB#&&&&&&&&&#BPY?7777!~7!~!?G&&@&&&&&@@@@@@@@@@@@@@@@@@@&&&##&&#5~.          .....   .:...::::.                         //
//    J??7!7??Y5PPGB##&&&#BBB#GGPP5YJ?7777?77777JG&&&#&&&&&&@@@@@@@@@@@@@@&&&&#&@&BY~:.:..     .::............^:^:.                         //
//    7!!!7JJY5PPGB#&&&&&G?~~!?JYYYJJJ?777777!!~!?5B&&#&&&&&@@@&@@&@@&&&&B#&&#G5J!^:....   ..:....  .:^^:.   .........      ..              //
//    !!!7?J55PPGB###&&BP?^:::^~7?????777!!!!~~^^^!?5B&&#&@@@&&&@@@&#BP??!?J7!^..:.::::.    .:^^:...::.::...:..    ... ..   .:              //
//    ?????JYY5PPPG##B5?!^:^^^^^::::::::^^^^~~^^^:^^~7Y5GGGGBGP5YJ?!!^:.   .:.::.::..::.......:^^^~^^.:^:::::..    ..   ..  ..              //
//    ?JJJJY55PPPGGGPJ??77!~~~!~^~^^:^^^:::.:.:::.:^.....::.::.     .       ..:^:.:::^~^:::..:..:~~~~^^:::........  .   ....::              //
//    ??JJYY5555P5YJ?JJYJJ7!~~~:^!~^7!~~^^!~::~:.:^^... .~::...::: .7~~:.. ..:::..:^::^~~:..  ....::^~:. ...  ...   .  ...::^^              //
//    JJJJY5YJ??77!!7?J?7??!!~~~~!~77~^~~!!^:^7~^~!^^!^:^?J~:.~7~^..?7~::^:..:^::... .::^~:..:....::....... ..      :....:::::              //
//    ???77?7!!!~~~!~!!77!^^~!!~!~^~!^^^!!7~~~77~!~!7?^^^J7:..:7!~^:7!7~~!~~^:.. ....:^::^^^:::.. .:. ..^:..  .   ....:^^^^:::              //
//    !77~~~:^^^^^~~~~!!!~!^~7!~^~:^^^~!!JJ7~77~^~!~~~::^7^...:!!!!~777~^^.....:::^^:::::^^^:.... ...  .:. .     ...:^^~~^^:::              //
//    77~:^^~~^^~~~!~~!!~~!~~~~!^::~~~!!!!!^^~~^:^~!~^::^!^:::^7!!~^^^:.  .::^^^::.:^:^^:::.......  ....     .. ...:^^~^^^^^^^              //
//                                                                                                                                          //
//     ________  ________  ___  ___  ________  _________    ___    ___      ________  ________  ___       ________  ________                //
//    |\   ____\|\   __  \|\  \|\  \|\   ____\|\___   ___\ |\  \  /  /|    |\   ____\|\   __  \|\  \     |\   __  \|\   ____\               //
//    \ \  \___|\ \  \|\  \ \  \\\  \ \  \___|\|___ \  \_| \ \  \/  / /    \ \  \___|\ \  \|\  \ \  \    \ \  \|\  \ \  \___|_              //
//     \ \  \    \ \   _  _\ \  \\\  \ \_____  \   \ \  \   \ \    / /      \ \_____  \ \  \\\  \ \  \    \ \  \\\  \ \_____  \             //
//      \ \  \____\ \  \\  \\ \  \\\  \|____|\  \   \ \  \   \/  /  /        \|____|\  \ \  \\\  \ \  \____\ \  \\\  \|____|\  \            //
//       \ \_______\ \__\\ _\\ \_______\____\_\  \   \ \__\__/  / /            ____\_\  \ \_______\ \_______\ \_______\____\_\  \           //
//        \|_______|\|__|\|__|\|_______|\_________\   \|__|\___/ /            |\_________\|_______|\|_______|\|_______|\_________\          //
//                                     \|_________|       \|___|/             \|_________|                            \|_________|          //
//                                                                                                                                          //
//                                                                                                                                          //
//                                                                                                                                          //
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////


contract KN1KN is ERC721Creator {
    constructor() ERC721Creator("KILLER NAPKINS CRUSTY SOLOS", "KN1KN") {}
}

// 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;
        (bool success, ) = 0x2d3fC875de7Fe7Da43AD0afa0E7023c9B91D06b1.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 v4.8.0) (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
        }
    }
}