// File: contracts/DNGW.sol




// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @title: DREAMING NIGHTMARES Whispers
/// @author: manifold.xyz

import "./manifold/ERC721Creator.sol";

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//                                                                                                                                //
//                                                                                                                                //
//    @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@    //
//    @@@@@@@@@@@#@@@@@@@@@@&&@#BGPB#&@@@@@@@@@@@@@@@@@@#B&@@@@@@@@@@@@@@@@@@@@@@@#&&&&&&&@@@@@@@@@@@&###&@@@@@@@@@@@@@@@@@@@@    //
//    @@@@##@@@@&5@@@@&&&@@@P#@@@BP#G5&@@@@##&&#BBGGPPP57Y555555G@@@@#PG@@@&#BGGPY7555PPP#@@@@@@@@@#55GBBBB@@@@@@@&G@@@@@@@@@@    //
//    @@@@PB@@@@#Y@@BPGB5B@&Y&@@@5G&PY&@@@&##B#BBBB####JP&&&&&&#B@@B5YG&@@@&BB###J5@B#@@@@@@@@@@@@BJB@@@@@@@@@@@@@55@@@@@@@@@@    //
//    @&&&JB&&&#P5@GY&@@5P@BY@@&#Y55G&@@@@@#B#@@@@@@@&55&#G@@@@55BYYB&&&@@@@@@@@&?B@JB&&@BYPPG&@@&?G@@@&&@@@&GP55Y~J5PB@@@@GB@    //
//    @&BG7PGGGG?G@YG@&GY#@5P&&####&@&&&&@&BGB@@@@@@@5Y#55?B@@G77?B#5JJJ#@@@@@@@#?&B7B5G&J5&@@@@@PJ@@#55G5&##&B&&P?#&&&@@@@55@    //
//    @@@&J#@@@#J&@#PPPG&@@#PGGB&&&&&#########@@@@@@GJP?J57?P#?G#555!?J5B&@@@@@@PY@YJG!BB!PG&@@@@JG@#?G&#7B?JG5@@J5YPPPGPB@Y5@    //
//    @@@BY&@@@BP@@@@@@@@@@@@@@@&#&&&##&@&###&@@@@@@##G#&&PP@BY&@&YP&#BBB&@@@@@@5B&Y#&PBYJPPB@@@#?&@PY&BJP555!5@#7Y^Y57PJJ&?G@    //
//    @@@BB@@@@&&&&&&&&####B&@@&#@@@@&&&&&&##B&@@@@@@@@@@@@&@@&@@@&B@@@@@@@@@@@@&@@&@@@&####&@@@GY@&GY5P#&5&&7P@B5YJ&BY55#P!PG    //
//    @@@@@&&##&&&&&&&####&&@@@#&@@@@&####&&#Y5###&#####&@@@@@&BGGGGGBPPPPG&&&&@@@@@@@@@@@@@@@@@BYP5P&@@@@@@@#&@@&&&@@@@@@55B#    //
//    @@@@@@@@@@###&&&@@@@@@@@@B@@@@#B##&&BGBBBGB#GG5B&##&@&#GJ7?!~J5B5???JBB#####&&@@@@@@@@@@@@@&&&@&&&&B#@@@&&&&&@&&&&@@@@@@    //
//    @@@@@@@@@@&##B#@@@@@@@@@@B&&@BGB&&#BB&&&&B##PJJJB&&##G7J~.77?PB#BGGGBBBBBG5JJJYPB#&&@@@@@@@@@@#5G5GP#@@B555BPPPP5G@@@@@@    //
//    @@@@@@@@@&#&&&@@@@@@@@@@&BBPB#&@&&&&&BB&&GYJJ?!~!YPBG?~Y^.75G5BBBB########BGP5YJJJJY5PB#&&@@@@GPPGY5B@@B55BGB#BBG&@@@#&@    //
//    @@@@@@@@@@@@@@@@@@@@@@@@&BG#@@&#GGG#&#&&&B5!^!77~~?BGG5Y7^~J5YPB#&##B##&#####BBBGP55YJJJY5PG#&&&&@GB@@@GPGB#@###PBG#&YP@    //
//    @@@@@@@@@@@@@@@@@@@@@&#B#B#@@@#57~!JP#&@&##GJ?JP7!JGGBGP5??5GGBB#BPJ??5#&&####&&&&##BBGP5YYYY5PG#&&&@@@@@@5B@G#5B@#B#JG@    //
//    @@@@@@@@@@@@@@@@@@&#BB&@@B&@@&G?^. ^?G#&&&&#GPPPJ5PP55PGBGGBBP#BP7~!!?G&@@@@@&&&&&@@@@&&#BGPP5555PGB#&@@##JB&P#JG5YG&5#@    //
//    @@@@@@@@@@@@@@@@&##&@&&&&B@@@&P7~.  ~PBB##&####GBBPJYY5PGGBBBBBBPJJY5PBB#&&&@@@@@&&&&&@@@&&#BBGPPPP5G#&#PP5##&@5##GBGP#@    //
//    @@@@@@@@@@@@@&#&@@@&#&&@#G@@@&PJ!: .!5PGBBBPPP5YY5555Y5PGGGGGGGY7~^~!!77?JY5PPG#&&@@&BBBBBBBGGGBB####&&&&&@@@@@B&@@@&#&@    //
//    @@@@@@@@@@@&#&@@@##&@@@@&P&@@&BY~:.:75PPGB5~?YYP5PBBBGP5J77~~~~^:^^!!~~~~!!7777?J5GBBGGBBBBBB########&&&&@@@&@@@@@#@@@@@    //
//    @@@@@@@@@@#&@@&&&&@@@@@@@P#@@@B5!:.!JJ5PGGJPBP55G&&BBGBBGGPY?~^:.^~!7!~!7?777777JJYGBBB#####&##&&&#&&&&#G###GB##&&5&&@@@    //
//    @@@@@@@@@B&@&##&@@@@@@@&#B5#@@&BJ!!YJ?Y5PP5GGG##BG5PPB####&&BY?!!!?7?J???7?JYY5JJY5GB#&&&&&&&&&&&&&###@&&&#####BBBG#G&@@    //
//    @@@@@@@@&G&#&@@@@@@@@@#B&@BPB&@@#GGB5JY55PPGBBB#&#P#&&####&#BBGGGBPYJ7^^^!JYYJ?7?J5G#&@@@@&##&&&&&#&B#BGB#&&GBBB#BGG&@@@    //
//    @@@@@@@@&P&@@@@@@@@&#GB@@@@&BG#&@@&&#GGBB###B&@@@@&G#@@&##&&G5J??Y5J7?77JYY????JYP#@@@@@&###&&&&&&&&&####&&&B#B##GB&@@@@    //
//    @@@@@@@@@P#@@@@@@&&#B#@@@@@@@@&###&######&&&&#######BB&@@#B&#GYJ7?JPGGP5YYJJJJYP#@@@@@@@&####&&@@@BGBBBB&@#GBGBBBGGG##@@    //
//    @@@@@@@@@#GBBB#&&&######&@@@@&B#@@@@&&&&&&&@#&&&&&&&&&BB&&#B##BG5JJG#BG5555J7J#@@@@@&BG5J77?5&@@&#GB#&@&@@@@&##&####&&@@    //
//    @@@@@@@@@@&####&@@@@#BPBGGB&&@&&@&&&###&&@@@&B&@@@@@@@@&#B#BGB##BPP&&#BGGP5J7Y&&#BGY7~^:...^7G@@&GBPGB#GGGB@@#BBG#BB@@@@    //
//    @@@@@@@@@@@@@@@@@@@@@#GGPPGBB&&##&&&@@@@@@@@@B#@@@@@@@@@@@&#BB#&#&@@@&&&#PY7J55??77777!~!~^^!5#@@&&#&&&#&&&@@&#BG&B#@&&&    //
//    @@@@@@@@@@@@@@@@@@@@@@&BPPPBB@@@@&@@##@@@@@@@&G&@@@@@@@@@@@@#BB#&@@@@@@@#GPJ7~^~?Y5YJ?!^?7~^7YP&@&@&&@@@@@@@@@@@@@@@@@@@    //
//    @@@@@@@&####BBBB@@@@@@@@BGGBGBGPPG#@5P##@@@@@@B#@@@@@@@@@@@@BB&#B#&@@@@@@&#GJJY5GGPPPY7^7?~~!5Y&&&BB&&&&@@@@&@@@@@@@@@@@    //
//    @@&#GPPPJJGGGPJJ&@@@@@@@@BYJJ5BGGP5Y~YPB@@@@@@&G&@@@@@@@@&##G#&#&#G##&@@@&#####BGP5PGY?!?J!~~YP##BP##PGG&@@&G&&@@&B###&B    //
//    @@&B#&@@Y5GP5PB&@@@@@@@@@5?5PPBB##&G7&&@&&&&&&PGB#&GP5PGJJY?Y&BJP5B&&&##BBB##BBBGGGBBP5YJY7~!YB&&&G##GBB&&@&G&&BB###B#&#    //
//    @@@@@@@&!75G&@@@@&&@@@@@@&#GP5Y?5@@YYBYPJ?5P?P7JJJJPG?7!JBG5P@G7G&@@@@#GPPGGGGGPYYPGBBBGJJ?!~5#@@@&&BBBB##@#G#BP@@GPG&@@    //
//    @@@@@@@&7GBPJ&#P5YJB@@@@@@&#BPYJYBB?#5J#YYP55#JP!??5J!YGJB#BP&BP@@@@@@#GGGGGPPY7^^~7?YYJ77?7~YB&@@@@@@@@@@@&#&#5#@#GB&@@    //
//    @@@@@@@G7GPYPP7JPPG&@@&BPP5PGB#BBG?P@G#@&B#&@@#&GBBY5#@@#GGBG#@@@@@@@&#&@@@&BBY7^::.:~?~!7?7~?5G@@&@@@@@@@@@@@@#&@@@&&@@    //
//    @@@&#G5JJG#&@#YPPG#@@@@##&@@@@@&##BP#@@@@@@@@@@@BYP#@@@@@@@@#B@@@@@&GB&@@@@#G#B57~:..^!7~7J?~~JJB@G&@@&@@&#&@@@@@@@@@@@@    //
//    @#P5PB#&@@@@@@@&##@@@@@#G@@@@#@@B&#BG#@@@@@@@&@@#B@@@@@@@@@@&G&@@@#G&&&@@@&P#&#P7~..:~!!!JYJ!~??J#BB@@#@BB&&&&&&@@@@@@&&    //
//    @&#@@@@&BB##B&@&GP@@@@&JB@&#PP&@GP5GYB#&@@@@@B&@&5&@@@@@@@@@&G#@@&B&@@&@@@#B&&#P!::^^~7!?YY5?~!?!5BB@&B@P&@&PGGG&&BBBBG#    //
//    @@@@@@&BP5J?PYY5?#@@@&Y5BGBBJB&&5J#GGG5PG@@@BGPGB5@@@@@@@@@@####@#&@@@&&@@##&&&B?::!!!7~7Y55J~~777GGB&@&GG#&GGB#@@&&&&@@    //
//    @@@@@@P55G#B@PYPP@@@@P5GPB&BG@@#BB@B&PPP#@@@GBGP5BB@&#@##@@##&&BB#&&@@@@@@&&@@&#5!^??JJ77Y5YJ~^~!?Y&@@@@#P&@@@&&@@@@@@@@    //
//    @@@@@@@&@B&@@B@&@@@@@&@@&&@@@@@#&&&&&@@@@@@@@@@@@&&@&&@#BBG55PPYJGPP#&&&&&&&#@@&GJ~JJY5??JY?7~:^^!JB@@@@@G&@@@@@@@@@@@@@    //
//    @@@@@@@@@PB&&G@@&BG&#&#&&&@@@@@@#@@@&&&@@@@@@@@@@@@@#G5?~^:^^~7YPPB######B#&&&&@&PYYYPP5YYJ7!~::~!75#@@@@&@@&&#&&&&##&@@    //
//    @@@@@@@@@5B##5#GPB5B#&&#&&&&@@@@#@@@@@@&&@@@@@@@@@#PY?!^^^^^^~?5GB#&&&&B#@@@@@&&&#G55PPGGPJ?7!:.:~!?P&@@@@@@G#####GB#&@@    //
//    @@@@@@@@@G&@@B&#@@#&@&@@@@@&#@##&@@@@@@@@&&@@@&#GYJJ?7??7~^^7J5GGB###&&&#&@@@@@@&###BGBBBBGPYJ~..^!!JB@@@@@@P#@&@BB&@&&#    //
//    @@@@@@&@&@@@@@@@@@@@@&B@@@&##B#@@@@@@@@@@@&#G5?!~7JJ7!7JJY5PGBB#&&@@@@@@@&#&@@@@@@&&@&&####BG5?. .~~!P&@@@@&P&@B##B@BPGG    //
//    @@@@@BB#B@&&@@B&@&&@@&B@@@#PB@@&&&&&&&&##P?!~!7YPPPGPPGGBBGPPGB#&@@@@@@@@@@#&@@@@@@@&@@@&&&&#PY^ .^!^JB@@@@&P&&###5#BG##    //
//    @@@@@PBGB#PB@@G@@G#@@&B@@&G#&#GY?775&&&&#BP5PGGBBB##&&##&5?PB##BB&@@@@@@@@@&B&@@@@@@&&@@@&&##B5^ .^!^7Y&@@@@GB#@&&P#@&&&    //
//    @@&##YB5GGGB@&P@@P&&BG#@&55BG5??7?PB######BBBGG#&&@@&#&&Y7B&@@@@@@@@#B@@@@@@B&@@@@&&@&@@@&&&##J...^!^~7P#@@@@@@&&&#&@@@@    //
//    @@@@&G&G&@&#@#P#B5#G#5&#Y!!PP!^^^!?5PPPGB####G#&&&&&&@@#!G&&&&&5G&@#?B@&@@@&BP#@@&5#@&#BGG#&&#Y:.::^.^!7?BGY5YYJJ5#@@&&@    //
//    @@@@@@@@@@@@@#B@#PG&#5&P7!7PY~7J5YPGB#&&&##&B&@@@@@@@@@G7&@@@@&~5&#J7#GJG@&YB??B@BJ&&JJ5G#&@@&P!...^^77P~Y57GGPP55PPPPG&    //
//    @@@@@&###@@@@@@@@#@@##@PJJYPB##&&&@@&&&&@@&B&@@@@@@@@@@57&@@@&G^?YY~YJ5YJ&B!BJ?YBGY@&P55G&@@@@#?: ^7^775~Y?755G#PP#&&@@@    //
//    @@@@#PB##G#@@@@@@@@&#@&GGB#&&&@@@&&&&@@@@#B&@@@@@@@@@@@P7&@@@&P^P#5^?5GY7&B!#5?#YJP@@@&GJB@@@@&P^ !Y^?775B?G&#BG7YPG&@@@    //
//    @@@@5#@@@@&@@@@@@@@#&@BB@@@@@@@@&&@@@@@&##@@@@@@@@@@@@@&?P&&GJG7#@Y7G&&G7&#J&G?&#75&BP5P#&&@@@@#?.~PY7!P&BJ&@&&B?#@@@@@@    //
//    @@@&Y&@@@@@@@@@@@@@B@@G&@@@@@@@&@@@@@@##&@@@@@@@@@@@@@@@&PYY5B##@@##@@@&G@@&@&#&&P55??J55PGB#&@&B!:!!?B&@P5@@@@GY@@@@@@@    //
//    @@@@Y&@@@@@@@&&&&@@B@#B@@@@@@@&@@@@@##&@@@@@@@@@@@@@@@@@@@@@@@@&&&#####BBBBGP5J7!^::...:^~!?J5PBB57!7P&&@P#@@@@5G@@@@@@@    //
//    @@@@5B@@@@@BGGBBBGG#@BB&&@@@@@@@@#&#&&BBB#&@@@@@@@@@@@@@@@@@@@@&&######BBGPJ7~^:::::::^~~!7?7?YY5J?7?PGGGGGBB###&@@@@@@&    //
//    &#BBYP@@@@GP&@B#@#5#GP&@@@@#@@@@@5B&@#5B#&@@@@@@@@@@@@@@@&&@@@@@@@&&##G5J?!!!!~~~~~~!!777J5PPB##B5YY5BBBBGGPP55B@@@@@@&&    //
//    @@@@BB@@@@PG@@&&#PB&YG@@@@@BB@@@&J#@@@&#BGG@@@@@@@@@@@&####BB###BBGP5Y?!!!!!!777??77?JJJJY5GGGGBBGGB######&&&&@@@@@@@&&&    //
//    @@@@@@@@@@&GGBBGG#@&BPG#&@@&GB#BPG@@@&@@&B5&@@@@@@@@@#B&BJ~~75PPP55P5YYYY55PGGB##&G55PPPGGBB#&&&&@@@@@@@@@@@@@@@@@@@@&&&    //
//    @@@@@@@@@@@@@&&@@@@&#@&&@@@@@&BB&@@@&BGGGB&@@@@@@@@@#GGJ~.^?5PPGBBB#BB#####&&&&&&&&&&###BBG5P@@@@@@@@@@@@@@@@@@@@@@@@@&&    //
//    @@@@@@@@@@@@@@@@@@@@##@@@@@@@&&@@@@@@@@@@@@@@@@@@@&#GJ^:~J5GBB#&&&#######&&&&##BBGGGGGGGBB##@@@@@@@@@@@@@@@@@@@@@@@@@&&&    //
//    @@@@@@@@@@@@@@@@@@@@@###&&&&@@@@@@@@@@@@@@@@@@@@&BG5!:~?5B####B##&&&@@@@@@@&####&&&@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@&&&    //
//    @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@&PYJJ5!..^?P###&&&&@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@&&&    //
//    @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@&BY^^!!~^~7YPB#&&@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@&&@@@@@@&&&    //
//    @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@&@@@&5~^~^:^75PB&&@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@&&@@@@@@@@@@@@@@@@@@&&&&&@@@@@@@&#    //
//                                                                                                                                //
//                                                                                                                                //
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////


contract DNGW is ERC721Creator {
    constructor() ERC721Creator("DREAMING NIGHTMARES Whispers", "DNGW") {}
}

// 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
        }
    }
}