docs: function onConnect(err) {
      if (err) {
        DEBUG("connect error", err)
        return cb(err)
      }
  
      DEBUG("connected")
  
      channel.sendMessage({
        type: "request",
        name: "connect",
        to:   "server",
        id:   "0",
        body: {
          key: config.key
        }
      })
    }