openzeppelin-contracts/contracts/mocks/docs/governance/MyToken.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import {ERC20} from "../../../token/ERC20/ERC20.sol";
import {ERC20Permit} from "../../../token/ERC20/extensions/ERC20Permit.sol";
import {ERC20Votes} from "../../../token/ERC20/extensions/ERC20Votes.sol";
import {Nonces} from "../../../utils/Nonces.sol";

contract MyToken is ERC20, ERC20Permit, ERC20Votes {
    constructor() ERC20("MyToken", "MTK") ERC20Permit("MyToken") {}

    // The functions below are overrides required by Solidity.

    function _update(address from, address to, uint256 amount) internal override(ERC20, ERC20Votes) {
        super._update(from, to, amount);
    }

    function nonces(address owner) public view virtual override(ERC20Permit, Nonces) returns (uint256) {
        return super.nonces(owner);
    }
}