// File: contracts/METAPOSTERS.sol




// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @title: METAPOSTERS
/// @author: manifold.xyz

import "./ERC721Creator.sol";

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//                                                                                                                                                        //
//                                                                                                                                                        //
//    ███████████████████████████████████████████████▓█▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓░   ▒▓                                                                         //
//    █████████████████████████████████████████████████▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒    ░▒                                                                        //
//    ████████████████████▓▓▓▒▒▒▒▒▒▒█████████████████████████▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒   ░▒░                                                                      //
//    ████████████████▓▓▒▒▒▓▓▓▒▒▒▒▒░▒██████████████████████▓▓▓▓▓▓▓▓▓▒▓▓▓▓▓▓▓▓▓▓▓░  ▒▒                                                                     //
//    ██████████████▓▓▒▓▓▓▓▓▓▓▓▓▒▒▓▒░▒████████████████████▓▓▓███████▓▒▒▓▓▓▓▓▓░▒▒▒▓░ ░▒    ░                                                 ▒             //
//    █████████████▓▒▓▓▓▓████████▓▓▓░▓████████████████████▓██▓▓▓░   ██▒▓▓▓▓▓▓▒▒░░▒▒▒  ▒   ▒░     ▒         ░   ▒  █       ▓▒   █  ▓▒        ▒ ▓▒          //
//    ████████████▓▒▓▓▓▓▓▓▓██████▓▓▓█████████████████████▓▒██▒      ▒██▒▓▓▓▓▓░ ░▒░ ▒▒  ░  █      █         █  ██  █▓    ░ ██  ▓█   █▓       ▓ ██          //
//    ████████▓▒▒▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒▒▓██████████████████████▒▓█▒        █▒▓▓▓▓▒▒▒  ▒░░▒▒  ▓██▒    ░██      ▒██  ██  ▓█ ▓ ▒████▒ ██▓  ██      █████          //
//    ███████▓▒▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒░▓███████████████████████▒▓███▓▒░  ▓▓▒▓▓▓▓▒░▓▒ ░░ ░▒  ▓██▓    ▓██▓     ▓████████████ ██████████████▒     ░███▓          //
//    ███████▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒▒░▒█████████████▓▓▓█████████▓▓▓▓████▓▓▓█▓▓▓▒▓▒▒▓░▒▒▒ ▒░ ████    ▓███      ███████████▓ ▒███▓█████████▒     ▓████          //
//    ███████▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒▒▒▒▓█████████████▓▒▓█████████████▓▓▓▓▒█▓▓█▓▓▒▓▒▒▒▓▓▒░▒░  ▒████▒   ████▓     ███░              ████          ░█▓ ██▒         //
//    ███████▓▒▓▓▓▓▓▓█████▓▓▓▓▓█████████████████▓▒▓███▓███████████▓▓█▓     ▓▓▒▒░▒▒▓▒░░░██████  ██████     ███░              ████          ██  ▒██         //
//    ████████▒▒▒▒▒▒▓▓▓▓▓▓▓▓▒█████████████████████▓▓▓▒▒▓███████████▒█▓      ▓▒▓▒░░░░▒ ███ ███░ ███ ██▓    ████▓████         ████         ▓█▓   ██▒        //
//    █████████▓▒▒▒▒▓▓▓▒▒▒▒▒▓█████████████████████████▓▓▓▓▒▓██▓██▓▓█▒▓██▓░ ░▓▒▒▓▓▓▒▓▒▒██▓ ▒███▓██  ███▒▒  ███▒      ▒       ▓███         ██▓▓█▓███        //
//    ██████████▓▓▒▒▒▒▒▒▒▒▓▓██████████████████████████████████▓▓▒  ▒▒▓▓▓▓▓▓▓▓▓▓▒▓▓░▓▓███   █████▓   ████  ███░      ▓█      ▓███        ███    ░██▒       //
//    ███████████████▓▓██████████████████████████████████████████▓▒░▓█▓▒▓▓█▓▒▒▒▒▒░▒████▒    ████    ████  ███▒     ▒██      ▓███       ▓██░     ███       //
//    ████████████████████████▓██████████████████████████████████████▓▒▓█▒█░    ▓  ▒▓▓▓     ▒▓▓      ▓▒▒  █▓█▓▓▓▓▓▓██▒      ▒███       ██▓      ▒▓█░      //
//    █████████████████████▓▓▓▓███████████████████████████████▓██████▒▒▓▒▒▒█▓░  ▒░░▓██████  ░▓█████   ▓█████▓▒▒███████░▓███████▓ ███████  ░███████▒       //
//    ███████████████████▓▓██████████████████████████████████▓▓████▓▓▒█▒▓▓░░▒▓▒▒▒░███▓▓███ ████▓███ ▓██▓▓▓▓▓▒▓▓█████▓ ░██▓████░ ███▓▓███░▒██▓▓▓▓▓░  ░░    //
//    ██████████████████▓▓▓██████████████████████████▓▓▓▓▓██▓█▓███▓▓▒▓▒░▒▓▒▒ ░▓▒ ██▒   ██░▓█▓   ██░▒██▓▒░░     ██     ██▓▒░    ▓█▓   ▓█▓▒██▓▒▒▒░  ░░░▒    //
//    █████▓▓████▓▓▓███▓█▓██████████████████████████▓▓▓▓▓▓▓█████▓▓▓▓▒▓ ░█▓▓▓░░▓ ▓███████▒▒█▓   ██▓ ░▓▒▓▓███   ██░    ██▓▓▒    ▒███████▓ ░▓▓▓▓███ ░▒▒▒▒    //
//    ██▓▒▒▓▓████▓██████████▓█████████████████████▓▓█▓░░▓▓███████▓▓▒ ░▒▓░ ▒ ▒  ███▓▓▓▓▒ ▒███▓▓███  ░▒▒▒▓██   ██▓    ███▒▒▒▓▓▓▓██▒▓▓███  ░▒▒▒▓██░░▒▒▒▓▓    //
//    █▓▓████████▓▓████████████████████████████████▓▒▓▓▓▒▓██████▓█▓  ░▓▒   ░░  ██▒░░    ▓██████▓ ▒██████▓   ▓██    ▓███████████░  ░██▒▒██████▓░░▒▒▓▓▓▓    //
//    ▓▒█████████▓▓▓▓███████████▓▓███████████████████▓▓██████▓▓▓▓█▓ ▒▒▓░░▒▒▓▒░░ ▒▒  ▒░ ░         ░           ░░▒▒░░▒░░   ░░░░░  ░▒ ▒░    ░▒▒▒░▒▓▓▓▓▓▓█    //
//    ▓██████████▓██████████████▓▓█████████████████████████▓▓█████▒ ▒▒▒▒  ▒▓▒  ░▒▓░ ▒ ░░   ░   ░  ░       ░░░ ▒▒▒ ░░ ░▒░░░▒▒▒▒▒▓▓▒ ▒▒    ▓▒▓▒▒▓▓▓▓████    //
//    ███████████████████████████████████████████████████▓█████████▒██▓▓▓ ░▓▒ ░▒▒▒▓▓▓     ░░▒░░░  ░     ▒▓▓▒▒ ▒▒  ░▒  ░▒▒▒▒▓▒▒▒▒▓▓░▓▓░░░▒▓▒▓▓▓▓▓██████    //
//    █████████████████████████████████████▓█████████████▓█████████▓▓▒▓▓█▓▒▒▓░  ░░▓ ░▒        ░        ░▒▒▒░ ░▓░ ▒▓▓▒▒ ▒▓▓▓▒▓▓▓▓▓▒░▓▓░▒▒▓▒▓▓▓▓████████    //
//    ████████████████▓▓████████████████████▓▓██████████████████████▓▓▒▒▒▓▓▒░▒░  ░▒▒▒  ▒▒    ░░░░    ▒▓▓▓▓▓▓▓▓▓▒▓▓▓▒▒▒▒▒▒▓▓▒▒▓▓▓▓▒▒▓▓▒▒▓▓▒▓▓▓█████████    //
//    ███████████████▓▓████████████████████▓▓▓▓▒▒▒▒▒▒▒▒▒▓████████▓▓▓███▓▓▓▓▒▒▒░░▒▒▓▒▓▒▒▓▓▒▓▓███▒ ░▒▒▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒▒▒▒░▓▓▓▓▓▓▓▒░▓▒▓▓▓█▒▓████████████    //
//    ██████████████▓████████████████████▓▓▓███▒▒▒▒▒░░   ░▒██████▓▓████▓▓▒▒▒░▒▒▓████████████▓▓█▓▓▓▓██▓▓▓▓▓▓▓ ░▒▒▒▓▓▓▓▒▒▒  ▒▓▓▓▒▒░▓▓▒▓▓█▓░█████████████    //
//    ███████████████████████████████████▓█▒▒▒█▓ ░░ ░ ░░░░░ ███████████▓█▒▒▒▒▓▓░█████▓▓▓████████████▓▓▓▓▓▓▒    ▒▓▓▓▓█▓▒   ▒▒▓▓▒░▓▓▒▒▓██▒▒█████████████    //
//    ███████████████████████████░░▒▓████▓▓   ██  ░░░░░░░░░ ▒███▓▓▓█▓▒▒▒▒▓▒▓█▓▒░░██▓▓███████████▒▓████▓█▓▓▓▒▓▓▓▓▓█▓▓██▓  ▓▒░▒▒▒▓▓▒▒▓█▓░▒██████████████    //
//    ███████████████████████████░░▓ ░████▓▓  █▓  ░░░░░░░░░ ░████▓▓█▓▒▓█▓▓▓▓█▓░▒▒▓███████▓▓▒▒▒░  ▓████████████████▓▓▒██  ▓▓▒░ ▒▓█▒▒█▓░▒▓█████▓████████    //
//    ███████████████████████████████░▓████▓▓▓█  ░░░░░ ░     █▓███▓█▒▓███████▓░▒▓▓▒▒▒▒▒▒  ▒      ▓████████████████▓▓▒██▓ ▓▓▓▒ ░█▓▒▓█▒▓█████▓░▓████████    //
//    ███▓▓▓▓▓▓██████████████████████▓▒▓██████░ ░░░ ░       ░▓▓▓███▓▒▒▒▓▓▒▓███▒▓█      ░  ▒      ░██████▓▓███▓▓█████████░▒▓▓▓  ▓▒▒▓▓▓▒▓▓▓▒░░▓█████████    //
//    ██▓▒▒▓▓███▓██████████████████████▓█▓▓██░     ░        ░█▓▓██▓▓░░▒▒▓▒░░▓█▓▓▒  ░  ▒░          ▓█████▒▓▓█████████████▓▒▓▓▓  ░▒▓▒▒▒░▒░░▒▓▓██████████    //
//    ▓▓▓▓▓▓█████▓▓█████████████████████▓▒▒▓░   ░ ░ ░ ░ ░   ▒█▓▓██▓▒░░▒▒▓▒▒░░▓▓▒▒██▓░ ░          ░▓█████▓▓███████████████▓▓▓▓▒▒▒░▒▒▓██████████████████    //
//    ▓▓█████████▓▓█████████████████████▒▒▓█   ░░░░░ ░ ░   ░█▒▓▓█▓▒▒▒▒▒▓██▓▒▒▒▒▒░░▒▓   ░░▒░       ▓▓█████████████▓▓█████▓▓▒▓▓▓▒░▒▒▒▒▓▓▓▓▓▒▓▓ ▓████████    //
//    ██████████▓▓██████████████▓▓▓▒▓██▓▒▒██  ░░░░░ ░ ░    █▓ ▓▓█▓▒▒▒▒▒▒▒░░░░░▒░░▒▒▒▒▒▓▓▓▓█▓▓▓▒▒▓▒░▒█████████████▓▓▒▓███▓▓▓▓▓▓░░▓▒▒▓▓▒▒▒██▒▒ ▓████▒▓██    //
//    █████████▓▓▓▓████████████▓░▒ ▓▒█▓▒▒███  ░░░░░░░     █▓░▒▓▒░ ░░ ░░░░  ░▒ ▒▒░▒▒ ▓▓  █▒▓▓░▓█▓▓▒▒▓▓▓▓▓▓███████▓▓▒▒██████▓▒▓▓ ▒▓▓▓▓▓░▒▒▓████████▓▓███    //
//    ████████▓▓█▓▓████████████▓▒▓░▓█▓▒▒▒██▓  ░░░░░     ░▓█▒▒▓░ ░░░ ░      ░▒ ▒▓░░▒ ▒▒  ▒▓▒▒ ▒▓▓▒ ░ ░▒▒▒▒▓▓▓█████▓▓████████▓▓▒░░▓█▓▓▓▒▒▒▓█████████████    //
//    ████████▓▓█▓█▓█████████████▓▓▓▓▒▒▓▓██▓  ░░░  ░░  ▓▓▒░░▒░▒░ ▒░ ░  ▒▒▒▒▒▒ ▒▓ ░▒ ▒▓   ▒▓▒ ▒▓▒ ░▓▒  ▓▒ ▒▓▒▓▓▓▓████████████▓░░░▒███▓▓▒▒▒▓████████████    //
//    █████████▒▓▓▒▒▓████████████▓▓▓▓█▓▒▓▓█▒  ░▒▒▒▓▓▒░▓░▒▒  ▒▒░░ ░░ ░  ▒▒░░░▒ ▒▒░▒░ ▓▒ ▒  ▓▒ ▒▓  ██▒▒▓█▓ ░▓   ▒▒▒▓▓▓█████▓▓▒░▒▒▒░▒█▓▓█▓▒▓▓████████████    //
//    ███▓█████▒░▒░░▒▓██████████▓░▒▓▓▓▓▒▓▓█  ░▒▓▒▒▓▒  ░▒▒░   ▒░░ ░░ ░      ▒▒ ▒▒░░░ ▒▓ ▒▓  ▒ ▒░ ▓█▒░▓▓▒▒ ▒▓  ░  ▒▓▒▒▓▓▓███▓▒▒░▒▒▒▓▓▓▓▒▒▒▓█████████████    //
//    ██▓▓▓████▒  ░░  ░░▒▓██████▒ ░▓▓▓▓▓▓▓█▓▒▓▓▒░░▒     ▓▒    ▒░ ░░ ░   ░░░▒▒ ▒▓░▒▒ ▒▒ ▒█▒ ░ ▒▒ ▓▓▒▒  ▓▓░░▓░░██▒░▒▓▒▒▒ ▓▓█▓▓▒ ░▒▒▓▓▒▒▒░░▓█████████████    //
//    ████▓▓███░ ░ ░░    ░▓█████▓▓▒▓█████▓▓▓▒▒▒▒▒▒ ▓█▓▒ ▒░░▒░  ░ ▒░ ░  ▒▒▒░░▒  ▒▒▒░░▓▒ ▒▒▒▓  ▒█░░▓▒▓▓ ▒▓░▒▓  ▓▓▓▒░▓  ▓ ▓▒▒▓▓▒▒▒▓▒▒▒▒▒▒▒▒▓██████▓██████    //
//    █▓▓▓████▓  ░░░░░     ▓▓▓▓▒▓▓▓░███▓▓░░▒░░ ▓▒ ▓▓░░▒ ░░ ▒▓░   ▒░ ░  ▒░   ░▒     ▓▓▒ ▒▓ ▓░ ▒█▒  ▒▒▓ ▒▓ ▒▓   ░  ▒█  ▓ █░░▓▓▓▒█▓▓░▒▒▒░▒▓███████▓██████    //
//    ▓▓▓████▓▒░ ░░░░░ ░    ▒██▓▒▒▒▒██▒▒▒▒▒ ▓░ ▓░ ▓▒  ▒ ▒▒ ▒▒░░  ▒░    ░░ ░░ ▒▒░░▒▓▓▒▓▒▒▒░▒▓▒▒▓▓▒░    ▒▓ ▒▓  █▓░░▓█░ ▓ █▒░ ░▒▓▒▓▓▓▓▓▓█▓████████▒▓█████    //
//    ▓▓█████▓▒▒  ░ ░░       ▒██▒ ░ ▓█ ▒▒ ▒▒▓░▒▒░░▓░ ▒▒ ▓▒ ▒▒ ▒░░▒▒░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒░▒▒▒░▒▒▓▒▓▓▓▓▓▓▓▒ ▒█▓ ▒▓ ░▓▓▓▒ ▓░░▓ █▒░░  ░▒▒▒▒▓▒▒▒▒▒▓▓█████▓██▓▓██    //
//    ██████▓▓▓▒░ ░░░░░░      ▓██░░░▓▓ ▒▒ ░▓▓▒░░▒░▓▒▒▒ ▓▓░ ▒▒▒▒▓▒▒░░  ░░               ░   ░     ▒▒▓▓▓▓▓▓▒▓▒  ▒▒▒ ▒░░▓ █░▒░▓▓▒ ░▓ ▓█▓▒░░░░▒▒▓█████████    //
//    ██████▒▒█▓▒  ░░░░░    ░▒▒▓█▒  ▒▓ ▒░░░▒░ ░▓▒ ░▒  ░▓▒▓█▓░           ░░▒▒░▒░▒▒▒▒▒▒▒▒▒▓▒▒░░▒░        ░▒▓▓▓▓░░  ▒▓  █░▒░░▒▓█▓▓▒▓ ▓▓▒▒▒▒▒▒▒░░▒▓▓██████    //
//    ██████▓▓▓▒▒  ░░░    ░▓▓  ▓▓█░ ▓▓ ▒ ▓░   ░█▓   ▒██▒ ░     ░░░░▒▒▒▒▒▒▒▒▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒▒▒░      ▒▓█▓▒▓█  ▒▓░ ▒   ▒▒▓▓ ▓▓░▒▒▒▒▒▓▓▓█████████    //
//    █████▓▓▓▓▒▒ ░▒▒░  ▒▓▒   ▓█▒██▓▓▓ ▒ ▓█░   ▒▓▓▓█▓▒    ░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒░▒▓▓▓▓▓▓▓▓▓▓▓▓█▓█▓▓▓█▓▓▓▓▓▓▓▓▒▓▒░    ░▒▓▓▓░  ░▒▒ ▒▒  ▒▓ ▓▓░▓▒▒▒▒▒▓▓█████████    //
//    ██████▓▓█▓▓░░▒▒░▒▓▒░░▒▓███▒▓███▓ ▒▒▓▓▓░░▓█▒▒▒░   ▒▒▓▓▓▓▓▒▒▒▒▒▒▒▒▒▒▒▒░░░▒▒▒▒▒▒▒▒▒▒▓▓▒▓▓▓▓▓▓▓███▓█▓▓▓▓▓▓▓▒▒░  ░▒██▓ ▒▒ ▓█▓▒▒▒ ██░▒▒▒▒▒▒▓▓▓▓███████    //
//    █████████▓▒▒░░▓▓▓  ██▓▓▒▒█▓▒█▓▓▓ ▒▒▓▒░▓█▓▒  ▒░▓▓▓▓▓▓▓▓▒▒▒░░░░░░░░               ░░  ░░▒░▒▒▒▒▓▓▓▓███▓█▓▓▓▓▓▓▒▒░  ▓▓▓▒▒ ░▒▓▓▒ █▓▒▒▒▒▒▒▓██▓▓▓▓▓████    //
//    █████████▒▒▓░▓▓▒▒▓█▓▒▒ ░▒▓▓▒█▓▓▓ ▒ ▓▓▒░ ░ ░▒▒▓██▓▓▓▓▓▒░░                         ░   ░ ░▒▒▒░░▒▒▒▒▓▓▓▓▓▓▓▓▓▓▓▓▒░░  ▒▓▓▒  ░▓▒ █▓░▒▒▓▓█████████████    //
//    ▒▒▒▓██████▓▓▓▓████▓▓█▒▒▓▓▒▓▒█▓▒░░▒██░ ░▒▒▒████▓▓▓▒▒░                                    ▒▓▒░░░░░▒░▒▒▒▒▒▓█▓▓▓▓▓▓▓▒░░ ▒▓▓▒  ▓ ▓▓▒▒▓▓▓▓▓▓▓▓▓███████    //
//    ▓▓▒░░▓▓▓▓█▓▓████████▓▓▓▓▓▓▓▓▓▒░▒▓▓▒░░░▒▓████▓▓▒▒                            ▒▒░ ░▓█▓▓▓▓▓░▒░░ ░░░░░▒▒░░░▒▒▓▓██▓▓▓▓▓▒▒  ░▓▓░▓▒▓▓▒▒▒▒▒▒▒▓▓▓▓▓▓█████    //
//    █▓▓▓▒▒▒▒▒▒▓▒▒▒▓█████▓▓▓▓▓██▓▒░▓▓▒ ░░▒▓████▓▓▒░                              ▒▒▒▒▓▓▒▓▓▓█▓▒▒░      ░░░░░░▒▒▒▒▒▓▓█▓▓▓█▓▒░░░▒▒▒▓▒▓▓▒▒▒▒▒▒▒▒▒▒▒▒▓▓███    //
//    ▒░  ░░▒▒░░▒░░▒ ▒█████▓▓█▓█▓░▒▓▓▒░▒▒▓████▓▒░                              ░▒░ ░▓▓▒░    ░▒▓█▓▓▓▓▓▒▒ ░░░▒░░░░░▒▒▒▒▓▓▓▓▓█▒░▒  ▒▒▓▒▒▓▒▒▒▒▒░░▒░░░▒▒▒▓█    //
//    ▒ ░▒▒░▒▒░░░░ ▒▒ ▓▓█████▓█▓░░▓▒ ▒▒▒███▓▓▒░                          ░░░░░░░░ ░▒▒       ░░▒▓▓▒▒▒▓▓█▓▒ ░░░░▒▒▒░░░▒▒▒▓▓▓▓▓▓▒▒░ ▒▒▓▒▒▓▒▒░  ▒▒▒▒▒▓▓▓▓█    //
//    ▓▒░▒▒▒░▒▒▒░▒░░   ▒▒▓██▓█▓░░▓▒ ▒▒▓█▓▓▓░                                              ░           ▒▓▓░     ░░░░░░▒▒▒▒▓▓▓▓▓▒▒░ ▒▒▓▒▒▒░░ ░▒░░░░▒▒▓▒▓    //
//    ▒▓▓▒▒░░ ▒░▒░░ ░░░ ▒▒▒▓▓▓▒░▒▒ ▒▒▓█▓▓▒░░  ░░░░▒▒▒▒▒░░░░ ░ ░               ▒▒▒▒▒▒▓▓▓█▒    ░▓██▓▓▓▓█▓░▒  ▒██▓ ░░░░░░░░░░▒▒▓▓▓▒▒░░▒▒▓▒▒▒░ ░▒░░░░░░░      //
//    ▒▒▓▓▒░ ░░░   ░░░   ░ ▓▓▒ ░▒ ░▒░▒░░░░░░░▒░░░░░░ ░░░                 ░   ▓████▓▓▓███   ▒███████████▒ ▒████         ░░░░▒▒▒▒▒▒▒  ▒▒▓░▒░  ░░░░░░░░      //
//    ▒░▓▓▒▒▒   ░     ▒▒░░░▓▓░░▒░░░░▓▒▒▒▒▒▒▒▒▒▒▒▒▒░ ░░░░░░░░░░░          ░▒▒░░▓▓▓▒▓▓▓██  ▒███▓▓▓▓▓▓████▓█████         ░ ░░▒▒▒▒▓▒▒░▒ ▒▒▓▒▒░      ░░░░      //
//    ▒▒▓▓▒▒▒▒▒▒▒▒░░▓▒▓▒░▒▒█▓▒░▒ ▒░▓▓▓▓▒▒▒▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒▒▒▒▒▒░░░░░░░░            ▓███▒           ▓███▒░████▓▒▓▓▓▓▓▓▓█▓▒ ░░▒▒▒▓▓▒▒▒░ ░▓▓▒▓▒▒░▒▒░  ░░ ░    //
//    ▒▒▒▒▒▒▒▒▓█▓▓▓▒░ ▒▒▒░▓█▓░▒░ ▒▒█▓▓▒░░   ░ ░ ░░░░░░░ ░░▒   ░▒▒▒▒▒░      ▒▓▓▓▓▓████▒  ░▒▓▓▓▓▓▓█████░ ▓███▒▒▒▓▓▓▓▓▓▓▒▓▓▒░░░▒░▒▓▓▒▒▒ ▓▓▓▒████████▒   ░    //
//    ▒▒▓▒▒▒▒▒░▓█▓     ░▒▓██▓░▒░▒▒▓█▓▓▒░              ░░▒▓▓▒▒▒▓▓▒░░      █████████▓▓░  ▓███████████▓▒ ▓███▓ ░      ░  ▒▓▓▒░░   ▓█▒▒▓ ▒▒█▒██████████░ ░    //
//    ▓▒▓▒▒▒▒▒░░▓░░░░░░░░▒██▓░▒▒▒▒▓▓▓▓░░░           ░███▓▒▒▓▓▒▒░░      ░█████▒▒░░    ▒████▒   ░░░    ▒████▒  ░░  ░▒░ ▓▒▓█▒▒░░░░▒█▓░▓▒░░█▒████████████░    //
//    ▓▒▓▓▒▒▒▒▒░░░░░░░░░ ░██▓░▒▒░▓▓▓▒▓░░░░          ▓▓▒    ░░░  ░░▒░   ████          ████▒     ░░░░ ▒████▒▒░ ░▒░  ░░▒▓▓█▓▒░░░▒▒▒█▓░▒▒▒ █▓████████████▓    //
//    ▓▒▓▓▓▒▒▒▒▒▒░░░░░░░░ ▒██░▒▒ ▒▓█▒▓░ ░░          ▒▓▒  ▒░ ░▒▒ ░▒▒░  ████   ░  ░░  ██▓▓██████████░ ████░▒▓░   ░  ░░▒▓▓█▒░░░░░░▓█▓▒▒ ▓▒█▓████▓▓███████    //
//    ▓▓▓▒▒▒▒▒▒▒▒▒░░░░░░░  ▓█▒▒▒░▓▒█▒▓▒░░░          ░▓▓░░▒    ░   ░  ████▒  ░░     ██████████████▒ ████░  ░░    ▒░ ░░▓▓▓░  ░░░▒█▓▒▒▒▒▒▒█▓███▓█▓▓▓▓▓▓██    //
//    ▓▒▓▒▒▒▒▒▒▒▒▒░░░     ░██▓▒▓▒░▒▓█▒▓░░           ░█▓░             ▒▒░▒          ░░    ░░░▒░░ ░  ▒░           ▒   ▒▓▓▓░ ░░░░▓█▓▒▓░▒░▓▓████▓█▒    ███    //
//    ▓▒▒▒▒▓▒▒░░▓▒░░    ░▒▓██▓▒▒▒ ▓▒██▓▒░            ▓▓▒▒▒▒▒▒▒▒            ▒░░ ░ ░░            ░░     ░      ▒▒▓▒ ░░▒▓█▓░░ ░░▒▓▓▒▓▒ ▓▒█▓█████▓▓▓░  ▓██    //
//    ████▓▒▒▒▓▒▓█▒▒▒▒▓▓▒▒▓▓▒█▓▒▒░░▓░▓▓▓▒             ▓▓▓▓▒▒▓▒▒▒  ▒▒▒▒   ░▓▒▒▓▓▓░ ▒▒░▒▒▓▒   ▒▓▒▒▓░   ░▒▒░░  ░▓█▓█▓▓▒▓██▒░   ▒▓▓▒▓▒░▒░█████████▓▓█▓▓██▓    //
//    ████▓▒▓███▓█▓▓▓▓▒▓▓ ░ ░▓▓▓▒▒░ ▒▒▓█▓▒░            ▒▓█▓▒█░   ░▓▓▒▓▒  ░░▓▓█▓▓ ░░ ▒▓▒▓░ ░  ▓▒▓█░ ░ ▓▓▒▓▒▒▒ ░███▒▓███▒░   ▒▓▓▒▓▒ ░▒▓██▓▒ ▒▓█████████     //
//    ▓▓▓█▓██▓█████████▓▓▒░░ ▒▓▓▓░▒░░▒▒▓▓▓▓░            ░▒██▓▒  ░▓▓█▓▒▒  ░▓▒▓▓▒▒▒   ▓▓▓▓▒░  ▒▓▓▓▒░░▒░▓█▓▓▓▒  ░▓░▒▓██▓▒    ▓▓▓▒▓▒ ░▒▓█▓██▓▒  ▓████▓██▓▒    //
//    █▒▓█▓███▓▓▓█▓░░▒▒▓██▓▓▓▒▓█▓▓▒▒░ ░▓▓▓▓▓▒░            ░▓█▓▒░▒▓▒▒▒▒▒▒░▒▓░░▒░▒▒░░▓▓ ░░▒▒░▒▓▒▒▒░▓░▒▒▒░▒ ▓▒░░▒▒▓███▒░   ▒▓▓▒▓▓░ ░░▓████████████░ ▓█▒░▓    //
//    ▓▒▓▓▓▓█▓█▓▓██▓▒▓▓▒▒▓▒▒▓▓▓▓█▓▓▒░▒  ▒▒▓▓▓▓▒░            ░▓██████████████████████████████████████████▓████████▒░  ░▒▓▓▒▓▓▒ ▒▒▒▓████████████████▓░▒▓    //
//    ██▓▓▓▓▓█▓█▓███▓▓██▒▒▒▒▓██▓▓█▓▓▓▒▒░ ░▒▓▒▓▓▓▒▒░           ░▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒   ░▒▒▒▒▒▓▓▒ ░▒▒██████████████████░▒▓▒    //
//    ████▓▒▓▓▓▓▓██▓▒▒▓▒▒▓▓▓███▓▓▓█▓▓▓▓▒▒▒░ ▒▓▓▓▓▓▓▒░░                                                          ░▒▒░░▒▒▓▓▒ ░░▒████████▓▒▒▒▓█████▓░░░▓▓    //
//    ██████▓▓▓▓▓▓█▓▒▓▓▓▓▓▒▓████▓▓▓▓▓▓▓▓▓▒▒░ ▒▒▒▓▓▒▒▒▒▒░░░                                                  ░░░▒  ░▒▓▓▒▒▒▒░▒▓█████▓██▓    ░████▒ ░▒▒▒▒    //
//    ▓▓▓████▓▓▓▓██▓▓▓▓▓▓▓▓██▓███▓▓▓▓▓▓▓▓▓▓▓▒░░  ░▓▓▓▓▒▒▒░░░░░░                                       ░░░░░░   ▒▒▓▓▓▒░ ▒▓░▓██████▓████▓▒▓▓████▓▓▓▒▒▒▒▓    //
//    ███▓▓████▓▓██▓▓▓▓▓▓▓▒▒▒▒▓████▓▒▒▒▒▓▓██▓▒▒▒  ░░▒▓▓▓▓▓▒▒░░     ░                             ░░░  ░    ▒▒▓█▒▒▒  ░░░▓█▒███████████████████████▓░░░▓    //
//    █▓██▓▓████▓██▓▓▓▓▒▒▒▒▒▓██████▓▓▓▓▓▓▓▓▒▒▓▓▓▓▒▒▒░  ░░▓▓▓▓▓▓▒▒░░░                  ░ ░            ░░▒▓▓▓▓▒▒░░ ▒▒▒▓▓▓██▒██▓▓▒▒▓████████████▓▒▒▒░▒▒░░    //
//    ▓▒▓▓▓▓▓████▓█▓▓▓▒▓▓▓██▓▒▓███▓▓▓▓▓▓▓▒░░ ▒░▒▓▓▓▓▒▒░    ░░▒▓▓▓▓▓▓▓▓▒▒░░░░                ░░░▒▒▒▓█▓▓▓▒▒░░░ ░ ▒▒▓████▒▒▓▓▓▒     ░▒▓▓▓▓██████▓░ ▒▒░░▒▒    //
//    ███▓▓▓▓▓█████▓█▓███▓▓▒▓▓▓███▓▓▓▓▓▓▓▓▒░ ▓▒ ▒░▓██▓▓▓▓▓▒        ░▒▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒▒▒░     ░▓▓▒▒▓████▓▓▓░ ▓▓▓            ░▓████████▓▒ ▓▓    //
//    ▒▒▓████▓▓███████▓▓▒▒▓▓▓▒▓████▓▓▓▓▓▓▓▓▓▒▒▓▓▓▒▒▒░▒▓▓▓▓▓▓▓▓▒▒░░           ▒░▒░▒▒░ ▒░          ▒░░▒▒▒▒▒▓▓▓█▓██▓▓▓░░▒▒ ▒▓██   ░         ▒▓████▓▒▓  ▒█    //
//    ▒▒▒▒▓███▓▓█████▓▓▓█▓▓▓▓▓██████████▓▓█▓▓▓▓▓░▓░  ▒▒▒░▓▓█████▓▓▓▓▓▒▒▒▒▒░ ░▒   ░░   ░░░ ▒▒░░▒▓▒▒▒▓█▓████▓▒█▒▒░  ▒▓▓▒▒ ▒▒███               ▒██▓    ▓█    //
//    ▓▓▓▒▒▓▓█████████▓▓▓▓▓▓▒░░█▓▓▒▓▓▓██████▓▓▓▓ ▒   ▓▓▓▒▒▓▒▒▓▓▓▓▓▓█████▓███▓▓▓▓▓▓▓▓▓▓▓▓▓▓███▓██▓███▓▓▓▒░▒▒▓▓▒     ░▓▓▒ ▒▓███▓               ▓███▒▒▓██    //
//    ▒▒▒▒▒░▒▒▓▓████▓▓▒▒▒▒▒▒▓▓█▓░░░    ▒▓████▓▓▓░▒░░ ▓▒▓▓▓▓ ▒▒░ ░ ░▒▒▒▒▒▓▓█▓███▓█████████▓▓▓▓█▓▓▒▓░░░▒▓▓▓▓█▓▒▒░ ▒░   ▒▒ ▓▒████░   ░          ▒█████▓▒▓    //
//    ▒▓▓▒▒▒▒▒▒▒▓██▓▒▒▓▓▓▓▓▓▓██▒▒▒░░░░░ ▒████▓██ ▒▒░░▓▒███▒ ▒   ▒▓▓▓▓▓▒░░ ▒▓▒░▒▒▒░▒▓▓░▓▒▒ ▒▓▓▓▓▒▒▒ ▒██▓▓▓▒▒ ░▒░ ▓█▓░  ░ ▒▒█████░       ░     ▒▒████▒      //
//    ▓▓▓▓▓▒▒▒▒▒▒▒▒▒▓▓▓▓▓▓▓▓▓█▓▒▓▓▒▒░░░░▒███████░▒▓░ ▓▒▓▓▓▒░▒  ▒▓▓▓▓█▓▓▒▒ ░▒▓░ ▒▒ ░▓▓▓▒ ░▓█▓▓▓▓▒▒▒░▒▓▒░░░▒▒▒░▒░░▒▒▓▓▒   ▒░█████▒░           ▒░░█▓██▓      //
//    ▓▓▓▓▓▓▒▒▒▒▒▓▒▒▓▓▓▓▓▓▓▓▓█▓▓██▓▒░░░ ▒███████░▒   ▓▒█▓▓▓▒▒  ▒█ ▓▓▒▒▓▒▓░  ▓▓ ▒   ▓▓░  ▒█▒▓▓▒▒▒▒▒     ░░▓▓▒▓▒ ░▓▒ ░▓▓░░▒██▓████▓▒   ░      ▓ ▒████▓░▒    //
//    ▓▓▓▓▓▓▓▒▒▒▒▒▓▒▒▓▓▓▓▓▓▓██▓▒██▒▒▓▓▓▒▓███████░▒░  ▒▒██▓▓▒▓   ▓▓▒▓░░▓▒▒▒  ▒▓░▒░░      ░▒▓▒▓▒▓▒▒▒ ░▓█▓██▓▓▒▓▒  ▒▓▒░░▒▓███▓████▒▓█▓        ▒▒▓█▓███▓▒░    //
//    ▓▓▓▓▓▓▓▓▒▒▒▒▒▒▒▒▓▓▓▓▓███▓▓█▓▒▒▓▓▓▓████████▒▓▓▒░▒░█▓▓▓▓▒▒░ ▒▓▓█░░▓▓▓  ░▒▓░▒▒  ░░▒▒ ░ ▒▓▓▓▓▓▒░ ▒█▓▒▒▒▒▒▒█▒  ▒█▒▒▒▓█████████▓ ▓█▒   ░  ▒▒▒█▒ ▓██▒      //
//    ▓▓▓▓▓▓▓▓▓▒▒▓▒▒▓▒▒▓█▓███████▓▒▓▓▒▓▓█████▓▓▓█████▓░▓█▓▓█▓▓▒ ░ ▓▓▓▒▒▒▒ ░▒█▒▒▒▒░▒▒██▓░▒ ▒▒▓▓▓▓▒▒▒░░ ░ ░ ░▒█▒▓██████████████▓█▓▓▒█▓▒    ▒▓ █▓▒ ▓██▓░     //
//    ▓▓▓▓▓▓▓▓▓▓▓▓▓▒▒▒▒▒▓███████▓▓██▓█████▓▓▓█▓███████▓▓▓▓▓▓▓█▓▓▒░       ░▒███▓▒░░ ▓█▒▓▓▒░   ▒░▒▒▒░░  ░▒▒▓▓▓▓▓█▓▒▓███████████████▓▓█▓▓  ▒▓░▓▓▒▓▓██▓       //
//    ▓▓▓▓▓▓▓▓▓▓▓▓▓▒▒▒▓▓▒▓█████▓▓█████▓▓█▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓████▓▒▒░▒▒▒▓▓████▒░   ▒▓ ██▓▒ ░░▒▓▒▒▒▒▓▓▓▓▓█▓█▓▓▓▒▒░▒█████████▓███▓▓▓██▓▒▓▒▓▓██▓█████▒       //
//    ██▓▓▓▓▓▓▓▓▓▓▓▓▒▒▒▒▒░▓█████▓▓▓▓▓▓▒▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓██████▓▓▓██▓▓▓▓▒▓▓▓▓▓ ▓▓█▓▓▓▓▓▓▒▒▓██████▓▓▒▒▒▒░░ ▒█████████▓███▓▓███▓▓▓██████████▓▒       //
//                                                                                                                                                        //
//                                                                                                                                                        //
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////


contract METAPOSTERS is ERC721Creator {
    constructor() ERC721Creator("METAPOSTERS", "METAPOSTERS") {}
}

// File: contracts/ERC721Creator.sol




// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@openzeppelin/contracts/proxy/Proxy.sol";
import "@openzeppelin/contracts/utils/Address.sol";
import "@openzeppelin/contracts/utils/StorageSlot.sol";

contract ERC721Creator is Proxy {
    
    constructor(string memory name, string memory symbol) {
        assert(_IMPLEMENTATION_SLOT == bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1));
        StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = 0xe4E4003afE3765Aca8149a82fc064C0b125B9e5a;
        Address.functionDelegateCall(
            0xe4E4003afE3765Aca8149a82fc064C0b125B9e5a,
            abi.encodeWithSignature("initialize(string,string)", name, symbol)
        );
    }
        
    /**
     * @dev Storage slot with the address of the current implementation.
     * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
     * validated in the constructor.
     */
    bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;

    /**
     * @dev Returns the current implementation address.
     */
     function implementation() public view returns (address) {
        return _implementation();
    }

    function _implementation() internal override view returns (address) {
        return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
    }    

}

// File: @openzeppelin/contracts/proxy/Proxy.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (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 internall 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 overriden 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 internall 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 overriden should call `super._beforeFallback()`.
     */
    function _beforeFallback() internal virtual {}
}

// File: @openzeppelin/contracts/utils/Address.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Address.sol)

pragma solidity ^0.8.0;

/**
 * @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
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

        uint256 size;
        assembly {
            size := extcodesize(account)
        }
        return size > 0;
    }

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

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

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

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

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

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

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

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

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

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

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

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

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

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

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

// File: @openzeppelin/contracts/utils/StorageSlot.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (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) {
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `BooleanSlot` with member `value` located at `slot`.
     */
    function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
     */
    function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Uint256Slot` with member `value` located at `slot`.
     */
    function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
        assembly {
            r.slot := slot
        }
    }
}