mDNS is working with Bonjour

Sure, here it is 😊:

// ************************************************************
// *** IMPORTS
// ************************************************************
const wifi = require("Wifi");

wifi.enableMDNS = function (hostname, serviceType, port, callback) {
    let mdns = "AT+MDNS=1," + JSON.stringify(hostname) + "," + JSON.stringify(serviceType) + "," + JSON.stringify(port) + "\r\n";
    this.at.cmd(mdns, 500, function (d) {
        callback(d);
    });
};

// ************************************************************
// *** MAIN
// ************************************************************

/*
 * Called on boot
 */
function onInit() {

    wifi.startAP("EspruinoAP", { password: "0123456789", authMode: "wpa2" }, function (err) {
        if (err) throw err;

        console.log("AP created!");
        wifi.enableMDNS("abcd", "iot", 80, function (result) {
            console.log("enableMDNS result: " + result);
        });

    });

}

That was my guess as well, but replacing this with wifi gives me exactly the same error 🤔.

```
2v06 (c) 2019 G.Williams
Espruino is Open Source. Our work is supported
only by sales of official boards and donations:
http://espruino.com/Donate

WARNING: Scan stop failed
WARNING: set rssi scan not implemeted yet
Running onInit()...
AP created!
Uncaught Error: Cannot read property 'cmd' of undefined
at line 2 col 12

wifi.at.cmd(mdns, 500, function (d) {
       ^

in function "enableMDNS" called from line 6 col 10

    });
     ^

in function called from system```