text: let pkey = "0x0000000000000000000000000000000000000000000000000000000000000001";
  let addr = "0x7e5f4552091a69125d5dfcb7b8c2659029395bdf";
  
  const Caver = require("caver-js");
  const rpcURL = "https://api.baobab.klaytn.net:8651/";
  const caver = new Caver(rpcURL);
  
  const temp = caver.klay.accounts.createWithAccountKey(addr, pkey);
  caver.klay.accounts.wallet.add(temp);
  const acc = caver.klay.accounts.wallet.getAccount(0);
  
  async function test() {
    let peb = await caver.klay.getBalance(addr);
    let klay = caver.utils.fromPeb(peb, "KLAY");
    console.log("peb", peb);
    console.log("klay", klay);
  }
  test();
  