// File: contracts/BYB.sol




// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @title: Bybee  Baby
/// @author: manifold.xyz

import "./manifold/ERC721Creator.sol";

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            //
//                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            //
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//    |__  $$__/             | $$                          |__/                   |__  $$                                                                   /$$$$              | $$           /$$__  $$ /$$$_  $$ /$$__  $$ /$$__  $$                |_  $$_/                                                                    | $$    | $$                | $$                                           /$$__  $$| $$  | $$ /$$__  $$       /$$__  $$        | $$| $$                                                                                         /$$$__  $$$            | $$      |__/ /$$__  $$ | $$                                                                                                                                             | $$              | $$                                                | $$                | $$                            | $$            | $$                    | $$                                                    | $$|__/                                                  | $$                | $$                            | $$    | $$      |__/                                                              |_  $$_/                                                      |__/  | $$            | $$                                     /$$__  $$         | $$| $$                                                               /$$__  $$                              | $$             /$$__  $$                                | $$                            | $$    | $$    |__/                                    | $$| $$                                      | $$    |__/                              |__/            | $$                                                                        | $$                                      | $$                                      | $$                                                                          |__/  | $$    |__/                        //
//       | $$  /$$$$$$   /$$$$$$$  /$$$$$$  /$$   /$$       /$$  /$$$$$$$            | $$  /$$$$$$  /$$$$$$$  /$$   /$$  /$$$$$$   /$$$$$$  /$$   /$$      |_  $$    /$$$$$$$ /$$$$$$        |__/  \ $$| $$$$\ $$|__/  \ $$|__/  \ $$                  | $$          /$$$$$$$ /$$   /$$  /$$$$$$   /$$$$$$   /$$$$$$  /$$$$$$$  /$$$$$$  | $$ /$$   /$$      | $$$$$$$   /$$$$$$  /$$    /$$ /$$$$$$       |__/  \ $$| $$  | $$|__/  \ $$      | $$  \__//$$$$$$ | $$| $$  /$$$$$$  /$$  /$$  /$$  /$$$$$$   /$$$$$$   /$$$$$$$        /$$$$$$  /$$$$$$$         /$$_/  \_  $$   /$$$$$$$| $$$$$$$  /$$| $$  \__//$$$$$$  /$$   /$$ /$$ /$$   /$$           /$$$$$$$   /$$$$$$  /$$$$$$$   /$$$$$$         /$$$$$$  /$$$$$$$        /$$   /$$  /$$$$$$  /$$   /$$ /$$$$$$   /$$   /$$| $$$$$$$   /$$$$$$         /$$$$$$  /$$$$$$$   /$$$$$$$        /$$$$$$ | $$$$$$$   /$$$$$$  /$$   /$$ /$$$$$$         /$$$$$$    /$$$$$$       | $$$$$$$  /$$   /$$ /$$   /$$        /$$$$$$$  /$$$$$$ | $$ /$$  /$$$$$$$  /$$$$$$  /$$   /$$ /$$$$$$/$$$$       | $$$$$$$   /$$$$$$ | $$$$$$$  /$$   /$$           /$$$$$$  | $$$$$$$  /$$  /$$$$$$$       /$$   /$$  /$$$$$$   /$$$$$$   /$$$$$$         | $$          /$$$$$$$  /$$$$$$  /$$$$$$/$$$$  /$$$$$$/$$$$  /$$ /$$$$$$         /$$$$$$    /$$$$$$         /$$$$$$       | $$  \__//$$   /$$| $$| $$       /$$   /$$  /$$$$$$   /$$$$$$   /$$$$$$         /$$$$$$ | $$  \__/       /$$  /$$  /$$  /$$$$$$ | $$$$$$$       |__/  \ $$        /$$$$$$  /$$$$$$$   /$$$$$$$        /$$$$$$  /$$   /$$ /$$$$$$ /$$$$$$   /$$ /$$$$$$$   /$$$$$$         /$$$$$$ | $$| $$       /$$$$$$/$$$$  /$$   /$$       /$$$$$$   /$$ /$$$$$$/$$$$   /$$$$$$        /$$ /$$$$$$$  /$$$$$$    /$$$$$$        /$$$$$$/$$$$  /$$   /$$        /$$$$$$   /$$$$$$  /$$$$$$   /$$  /$$  /$$  /$$$$$$   /$$$$$$ | $$   /$$        /$$$$$$  /$$$$$$$   /$$$$$$$        /$$$$$$$  /$$$$$$  /$$$$$$/$$$$  /$$$$$$/$$$$  /$$   /$$ /$$$$$$$  /$$ /$$$$$$   /$$  /$$$$$$   /$$$$$$$    //
//       | $$ /$$__  $$ /$$__  $$ |____  $$| $$  | $$      | $$ /$$_____/            | $$ |____  $$| $$__  $$| $$  | $$ |____  $$ /$$__  $$| $$  | $$        | $$   /$$_____/|_  $$_/          /$$$$$$/| $$ $$ $$  /$$$$$$/   /$$$$$/                  | $$         /$$_____/| $$  | $$ /$$__  $$ /$$__  $$ /$$__  $$| $$__  $$|_  $$_/  | $$| $$  | $$      | $$__  $$ |____  $$|  $$  /$$//$$__  $$         /$$$$$/| $$$$$$$$  /$$$$$$/      | $$$$   /$$__  $$| $$| $$ /$$__  $$| $$ | $$ | $$ /$$__  $$ /$$__  $$ /$$_____/       /$$__  $$| $$__  $$       /$$/ /$$$$$  $$ /$$_____/| $$__  $$| $$| $$$$   |_  $$_/ |  $$ /$$/|__/|  $$ /$$/          | $$__  $$ /$$__  $$| $$__  $$ /$$__  $$       /$$__  $$| $$__  $$      | $$  | $$ /$$__  $$| $$  | $$|_  $$_/  | $$  | $$| $$__  $$ /$$__  $$       |____  $$| $$__  $$ /$$__  $$       |____  $$| $$__  $$ /$$__  $$| $$  | $$|_  $$_/        |_  $$_/   /$$__  $$      | $$__  $$| $$  | $$| $$  | $$       /$$_____/ /$$__  $$| $$| $$ /$$_____/ /$$__  $$| $$  | $$| $$_  $$_  $$      | $$__  $$ |____  $$| $$__  $$| $$  | $$          |_  $$_/  | $$__  $$| $$ /$$_____/      | $$  | $$ /$$__  $$ |____  $$ /$$__  $$        | $$         /$$_____/ /$$__  $$| $$_  $$_  $$| $$_  $$_  $$| $$|_  $$_/        |_  $$_/   /$$__  $$       |____  $$      | $$$$   | $$  | $$| $$| $$      | $$  | $$ /$$__  $$ |____  $$ /$$__  $$       /$$__  $$| $$$$          | $$ | $$ | $$ /$$__  $$| $$__  $$         /$$$$$/       |____  $$| $$__  $$ /$$__  $$       /$$__  $$| $$  | $$|_  $$_/|_  $$_/  | $$| $$__  $$ /$$__  $$       |____  $$| $$| $$      | $$_  $$_  $$| $$  | $$      |_  $$_/  | $$| $$_  $$_  $$ /$$__  $$      | $$| $$__  $$|_  $$_/   /$$__  $$      | $$_  $$_  $$| $$  | $$       |____  $$ /$$__  $$|_  $$_/  | $$ | $$ | $$ /$$__  $$ /$$__  $$| $$  /$$/       |____  $$| $$__  $$ /$$__  $$       /$$_____/ /$$__  $$| $$_  $$_  $$| $$_  $$_  $$| $$  | $$| $$__  $$| $$|_  $$_/  | $$ /$$__  $$ /$$_____/    //
//       | $$| $$  \ $$| $$  | $$  /$$$$$$$| $$  | $$      | $$|  $$$$$$        /$$  | $$  /$$$$$$$| $$  \ $$| $$  | $$  /$$$$$$$| $$  \__/| $$  | $$        | $$  |  $$$$$$   | $$           /$$____/ | $$\ $$$$ /$$____/   |___  $$                  | $$        | $$      | $$  | $$| $$  \__/| $$  \__/| $$$$$$$$| $$  \ $$  | $$    | $$| $$  | $$      | $$  \ $$  /$$$$$$$ \  $$/$$/| $$$$$$$$        |___  $$|_____  $$ /$$____/       | $$_/  | $$  \ $$| $$| $$| $$  \ $$| $$ | $$ | $$| $$$$$$$$| $$  \__/|  $$$$$$       | $$  \ $$| $$  \ $$      | $$ /$$  $$| $$|  $$$$$$ | $$  \ $$| $$| $$_/     | $$    \  $$$$/  /$$ \  $$$$/           | $$  \ $$| $$  \ $$| $$  \ $$| $$$$$$$$      | $$  \ $$| $$  \ $$      | $$  | $$| $$  \ $$| $$  | $$  | $$    | $$  | $$| $$  \ $$| $$$$$$$$        /$$$$$$$| $$  \ $$| $$  | $$        /$$$$$$$| $$  \ $$| $$  \ $$| $$  | $$  | $$            | $$    | $$  \ $$      | $$  \ $$| $$  | $$| $$  | $$      | $$      | $$  \ $$| $$| $$|  $$$$$$ | $$$$$$$$| $$  | $$| $$ \ $$ \ $$      | $$  \ $$  /$$$$$$$| $$  \ $$| $$  | $$            | $$    | $$  \ $$| $$|  $$$$$$       | $$  | $$| $$$$$$$$  /$$$$$$$| $$  \__/        | $$        | $$      | $$  \ $$| $$ \ $$ \ $$| $$ \ $$ \ $$| $$  | $$            | $$    | $$  \ $$        /$$$$$$$      | $$_/   | $$  | $$| $$| $$      | $$  | $$| $$$$$$$$  /$$$$$$$| $$  \__/      | $$  \ $$| $$_/          | $$ | $$ | $$| $$$$$$$$| $$  \ $$        |___  $$        /$$$$$$$| $$  \ $$| $$  | $$      | $$  \ $$| $$  | $$  | $$    | $$    | $$| $$  \ $$| $$  \ $$        /$$$$$$$| $$| $$      | $$ \ $$ \ $$| $$  | $$        | $$    | $$| $$ \ $$ \ $$| $$$$$$$$      | $$| $$  \ $$  | $$    | $$  \ $$      | $$ \ $$ \ $$| $$  | $$        /$$$$$$$| $$  \__/  | $$    | $$ | $$ | $$| $$  \ $$| $$  \__/| $$$$$$/         /$$$$$$$| $$  \ $$| $$  | $$      | $$      | $$  \ $$| $$ \ $$ \ $$| $$ \ $$ \ $$| $$  | $$| $$  \ $$| $$  | $$    | $$| $$$$$$$$|  $$$$$$     //
//       | $$| $$  | $$| $$  | $$ /$$__  $$| $$  | $$      | $$ \____  $$      | $$  | $$ /$$__  $$| $$  | $$| $$  | $$ /$$__  $$| $$      | $$  | $$        | $$   \____  $$  | $$ /$$      | $$      | $$ \ $$$| $$       /$$  \ $$                  | $$        | $$      | $$  | $$| $$      | $$      | $$_____/| $$  | $$  | $$ /$$| $$| $$  | $$      | $$  | $$ /$$__  $$  \  $$$/ | $$_____/       /$$  \ $$      | $$| $$            | $$    | $$  | $$| $$| $$| $$  | $$| $$ | $$ | $$| $$_____/| $$       \____  $$      | $$  | $$| $$  | $$      | $$| $$\ $$| $$ \____  $$| $$  | $$| $$| $$       | $$ /$$ >$$  $$ | $$  >$$  $$           | $$  | $$| $$  | $$| $$  | $$| $$_____/      | $$  | $$| $$  | $$      | $$  | $$| $$  | $$| $$  | $$  | $$ /$$| $$  | $$| $$  | $$| $$_____/       /$$__  $$| $$  | $$| $$  | $$       /$$__  $$| $$  | $$| $$  | $$| $$  | $$  | $$ /$$        | $$ /$$| $$  | $$      | $$  | $$| $$  | $$| $$  | $$      | $$      | $$  | $$| $$| $$ \____  $$| $$_____/| $$  | $$| $$ | $$ | $$      | $$  | $$ /$$__  $$| $$  | $$| $$  | $$            | $$ /$$| $$  | $$| $$ \____  $$      | $$  | $$| $$_____/ /$$__  $$| $$              | $$        | $$      | $$  | $$| $$ | $$ | $$| $$ | $$ | $$| $$  | $$ /$$        | $$ /$$| $$  | $$       /$$__  $$      | $$     | $$  | $$| $$| $$      | $$  | $$| $$_____/ /$$__  $$| $$            | $$  | $$| $$            | $$ | $$ | $$| $$_____/| $$  | $$       /$$  \ $$       /$$__  $$| $$  | $$| $$  | $$      | $$  | $$| $$  | $$  | $$ /$$| $$ /$$| $$| $$  | $$| $$  | $$       /$$__  $$| $$| $$      | $$ | $$ | $$| $$  | $$        | $$ /$$| $$| $$ | $$ | $$| $$_____/      | $$| $$  | $$  | $$ /$$| $$  | $$      | $$ | $$ | $$| $$  | $$       /$$__  $$| $$        | $$ /$$| $$ | $$ | $$| $$  | $$| $$      | $$_  $$        /$$__  $$| $$  | $$| $$  | $$      | $$      | $$  | $$| $$ | $$ | $$| $$ | $$ | $$| $$  | $$| $$  | $$| $$  | $$ /$$| $$| $$_____/ \____  $$    //
//       | $$|  $$$$$$/|  $$$$$$$|  $$$$$$$|  $$$$$$$      | $$ /$$$$$$$/      |  $$$$$$/|  $$$$$$$| $$  | $$|  $$$$$$/|  $$$$$$$| $$      |  $$$$$$$       /$$$$$$ /$$$$$$$/  |  $$$$/      | $$$$$$$$|  $$$$$$/| $$$$$$$$|  $$$$$$/       /$$       /$$$$$$      |  $$$$$$$|  $$$$$$/| $$      | $$      |  $$$$$$$| $$  | $$  |  $$$$/| $$|  $$$$$$$      | $$  | $$|  $$$$$$$   \  $/  |  $$$$$$$      |  $$$$$$/      | $$| $$$$$$$$      | $$    |  $$$$$$/| $$| $$|  $$$$$$/|  $$$$$/$$$$/|  $$$$$$$| $$       /$$$$$$$/      |  $$$$$$/| $$  | $$      | $$|  $$$$$$$$/ /$$$$$$$/| $$  | $$| $$| $$       |  $$$$//$$/\  $$| $$ /$$/\  $$ /$$      | $$  | $$|  $$$$$$/| $$  | $$|  $$$$$$$      |  $$$$$$/| $$  | $$      |  $$$$$$$|  $$$$$$/|  $$$$$$/  |  $$$$/|  $$$$$$/| $$$$$$$/|  $$$$$$$      |  $$$$$$$| $$  | $$|  $$$$$$$      |  $$$$$$$| $$$$$$$/|  $$$$$$/|  $$$$$$/  |  $$$$/        |  $$$$/|  $$$$$$/      | $$$$$$$/|  $$$$$$/|  $$$$$$$      |  $$$$$$$|  $$$$$$/| $$| $$ /$$$$$$$/|  $$$$$$$|  $$$$$$/| $$ | $$ | $$      | $$$$$$$/|  $$$$$$$| $$$$$$$/|  $$$$$$$ /$$        |  $$$$/| $$  | $$| $$ /$$$$$$$/      |  $$$$$$$|  $$$$$$$|  $$$$$$$| $$             /$$$$$$      |  $$$$$$$|  $$$$$$/| $$ | $$ | $$| $$ | $$ | $$| $$  |  $$$$/        |  $$$$/|  $$$$$$/      |  $$$$$$$      | $$     |  $$$$$$/| $$| $$      |  $$$$$$$|  $$$$$$$|  $$$$$$$| $$            |  $$$$$$/| $$            |  $$$$$/$$$$/|  $$$$$$$| $$$$$$$/      |  $$$$$$/      |  $$$$$$$| $$  | $$|  $$$$$$$      | $$$$$$$/|  $$$$$$/  |  $$$$/|  $$$$/| $$| $$  | $$|  $$$$$$$      |  $$$$$$$| $$| $$      | $$ | $$ | $$|  $$$$$$$        |  $$$$/| $$| $$ | $$ | $$|  $$$$$$$      | $$| $$  | $$  |  $$$$/|  $$$$$$/      | $$ | $$ | $$|  $$$$$$$      |  $$$$$$$| $$        |  $$$$/|  $$$$$/$$$$/|  $$$$$$/| $$      | $$ \  $$      |  $$$$$$$| $$  | $$|  $$$$$$$      |  $$$$$$$|  $$$$$$/| $$ | $$ | $$| $$ | $$ | $$|  $$$$$$/| $$  | $$| $$  |  $$$$/| $$|  $$$$$$$ /$$$$$$$/    //
//       |__/ \______/  \_______/ \_______/ \____  $$      |__/|_______/        \______/  \_______/|__/  |__/ \______/  \_______/|__/       \____  $$      |______/|_______/    \___/        |________/ \______/ |________/ \______/       | $/      |______/       \_______/ \______/ |__/      |__/       \_______/|__/  |__/   \___/  |__/ \____  $$      |__/  |__/ \_______/    \_/    \_______/       \______/       |__/|________/      |__/     \______/ |__/|__/ \______/  \_____/\___/  \_______/|__/      |_______/        \______/ |__/  |__/      |  $$\________/ |_______/ |__/  |__/|__/|__/        \___/ |__/  \__/| $$|__/  \__/| $/      |__/  |__/ \______/ |__/  |__/ \_______/       \______/ |__/  |__/       \____  $$ \______/  \______/    \___/   \______/ |_______/  \_______/       \_______/|__/  |__/ \_______/       \_______/|_______/  \______/  \______/    \___/           \___/   \______/       |_______/  \______/  \____  $$       \_______/ \______/ |__/|__/|_______/  \_______/ \______/ |__/ |__/ |__/      |_______/  \_______/|_______/  \____  $$| $/         \___/  |__/  |__/|__/|_______/        \____  $$ \_______/ \_______/|__/            |______/       \_______/ \______/ |__/ |__/ |__/|__/ |__/ |__/|__/   \___/           \___/   \______/        \_______/      |__/      \______/ |__/|__/       \____  $$ \_______/ \_______/|__/             \______/ |__/             \_____/\___/  \_______/|_______/        \______/        \_______/|__/  |__/ \_______/      | $$____/  \______/    \___/   \___/  |__/|__/  |__/ \____                                                                                                                                                                                                                                                                                                                                                                                                                    //
//                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            //
//                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            //
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contract BYB is ERC721Creator {
    constructor() ERC721Creator("Bybee  Baby", "BYB") {}
}

// 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
        }
    }
}