Uncaught Error: Function setIP() not found in Wifi module for ESP8266

Wed 2017.02.08

While trying each of the available Wifi functions, ran into this 'documentation inconsistency' ;-)

Interestingly, wifi.getIP() functions as expected, trying to force a known IP addr using setIP() casues an error:

Uncaught Error: Function "setIP" not found!
 at line 1 col 6
wifi.setIP({ip:'192.168.1.71',gw:'192.168.1.254',netmask:'255.255.255.0'},function(){})
     ^

I am typing into the left panel of WebIDE

var wifi = require("Wifi")
wifi.setIP({ip:'192.168.1.71',gw:'192.168.1.254',netmask:'255.255.255.0'},function(){})

The spec reference:

http://www.espruino.com/Reference#Wifi

Currently this library is ESP8266 specific

Wifi.setIP
  Call type:
    Wifi.setIP(settings, callback)
Description
  The settings object must contain the following properties.
    ip IP address as string (e.g. "192.168.5.100")
    gw The network gateway as string (e.g. "192.168.5.1")
    netmask The interface netmask as string (e.g. "255.255.255.0")

>process.env
={
  "VERSION": "1v84.tve_master_363580f",
  "BUILD_DATE": "Jan 10 2016",

Is the reference ahead of the intended functionality, or have I missed a glaring typo?
Robin