test erc20

SigmaToken.sol

//SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.0;

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/access/Ownable.sol";

contract SigmaToken is ERC20, Ownable {
    constructor(
        string memory _name,
        string memory _symbol,
        uint256 _totalSupply
    ) ERC20(_name, _symbol) {
        _mint(_msgSender(), _totalSupply);
    }
}