How to use the wechaty.IoClient function in wechaty

2. '#busy I'm busy' - set busy mode ON and set a Auto Reply Message
3. '#free' - set busy mode OFF
4. '#status' - check the current Busy Mode and Auto Reply Message.

Loading... please wait for QrCode Image Url and then scan to login.
`)

let bot

const token = config.token

if (token) {
  log.info('Wechaty', 'TOKEN: %s', token)

  bot = Wechaty.instance({ profile: token })
  const ioClient = new IoClient({
    token,
    wechaty: bot,
  })

  ioClient.start().catch(e => {
    log.error('Wechaty', 'IoClient.init() exception: %s', e)
    bot.emit('error', e)
  })
} else {
  log.verbose('Wechaty', 'TOKEN: N/A')
  bot = Wechaty.instance()
}

bot
.on('scan', (qrcode, status) => {
  qrTerm.generate(qrcode, { small: true })