getBalance function

function WalletBalance() {

    const [balance, setBalance] = useState();
    
    const getBalance = async () => {
        const [account] = await window.ethereum.request({ method: 'eth_requestAccounts' });
        const provider = new ethers.providers.Web3Provider(window.ethereum);
        const balance = await provider.getBalance(account);
        setBalance(ethers.utils.formatEther(balance));
    }
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