How do i call _mint() without emit Transfer()

I've read here that it is possible to mint 2^256 nfts in a single transaction. I've tried to achieve this by directly assigning _owners and _balances mappings but ofc these are private variables so i can't change them. I tried making an _mint() override but that also didn't work. How does this process work?

Here's the override function i tried. It doesn't work because _balances and _owners are private variables

 function _mint(address to, uint256 tokenId) internal override {
        require(to != address(0), "ERC721: mint to the zero address");
        require(!_exists(tokenId), "ERC721: token already minted");

        _beforeTokenTransfer(address(0), to, tokenId);

        _balances[to] += 1;
        _owners[tokenId] = to;

//        emit Transfer(address(0), to, tokenId);

        _afterTokenTransfer(address(0), to, tokenId);

Can you add the mint override and explain what it didn't work?

Edited main post with the code. It didn't work because _owners and _balances are private