Why is the error "Cannot read property 'EPersonaState' of undefined" displayed?

Question

Node.js

const SteamUser = require('steam-user');
const SteamTotp = require('steam-totp');
const config = require('./config.json');
const client = new SteamUser();

const logOnOptions = {
  accountName: config.username,
  password: config.password,
  twoFactorCode: SteamTotp.generateAuthCode(config.sharedSecret)
};

client.logOn(logOnOptions);

client.on('loggedOn', () => {
  console.log('Success login');
  client.setPersona(SteamUser.Steam.EPersonaState.Online);
});

TypeError: Cannot read property 'EPersonaState' of undefined

Who made bots for steam, where does this error come from? everything is according to the documentation

Answer 1

SteamUser.EPersonaState.Online instead of SteamUser.Steam.EPersonaState.Online =_=