GameTokenHardhat

Install Openzepplin contract

npm i @openzeppelin/contracts

Copy openzepplin's ERC20 contract path from node_modules folder and then write import statement on gameT contract

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

You can now deploy contract on any testnet or mainnet as before

Verify Contract

---

Install hardhat plugin

npm install --save-dev @nomicfoundation/hardhat-verify

import plugin to harhat.config.js file

require("@nomicfoundation/hardhat-verify");

Add these configurations to hardhat.config.js after the networks

networks:{
    sepolia:{

    }
}
etherscan: {
    // Your API key for Etherscan
    // Obtain one at https://etherscan.io/
    apiKey: {
         sepolia:"Your API_Key"
          }
  }

Now verify your deployed contract using

npx hardhat verify --network sepolia DEPLOYED_CONTRACT_ADDRESS