Layman whitelist implementation

Layman.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/Counters.sol";

contract MyToken is ERC721, Ownable {
    
    mapping(address => bool) whitelist;
    mapping(address => uint256) tokenCount;
    ... // implementation here

    function whitelistMint(address to) public onlyOwner {
        require(whitelist[address], "NOT IN WHITELIST");
        ... // implementation
        _safeMint(to, tokenId);
    }
}