Need help adding a non-conventional JS extension for GM.

[Ivatrix]

Hi I'm looking to add javascript functions to game maker for an API, but the format of them is like this:

companyname.initialize({soundMuteCallback: muteSound, // optionalsoundUnmuteCallback: unmuteSound // optional});

And in the file they look like this

this.initialize = function(params) {companyname.getSharedEventCenter().postEvent(SharedEventKeys.API_INITIALIZE);_isInitialized = true;if (typeof params !== "undefined") {var muteSoundCallback = ("soundMuteCallback" in params && typeof params["soundMuteCallback"] === "function") ? params["soundMuteCallback"] : undefined;var unmuteSoundCallback = ("soundUnmuteCallback" in params && typeof params["soundUnmuteCallback"] === "function") ? params["soundUnmuteCallback"] : undefined;_adsManager.setSoundCallbacks(function() {typeof muteSoundCallback === "function" && muteSoundCallback();[].forEach.call(document.getElementsByTagName("audio"), function(element){element.muted = true;});}, function() {typeof unmuteSoundCallback === "function" && unmuteSoundCallback();[].forEach.call(document.getElementsByTagName("audio"), function(element){element.muted = false;});});}_tryShowAd();};

Does anyone have any idea how to do this in game maker? I don't know what information to put in the extension function properties.