loocurse

... // import statements

contract MyToken is ERC721, Ownable {
    // vars
    
    function _convertLeaf(address _user, uint256 _quantity)
        internal
        pure
        returns (bytes32)
    {

loocurse

...
import "@openzeppelin/contracts/utils/cryptography/MerkleProof.sol";

contract MyToken is ERC721, Ownable {
    
    bytes32 rootHash = '0x...'
    mapping(address => uint256) tokenCount;
    
    ... 

loocurse

// 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;