SCRIPT INCLUDES: return multi values using multi functions in the same si call session

EXAMPLE REQUIREMENT:
return all RITM variables in the main function, then return sys_ids in 2 separate functions

SCRIPT INCLUDE CODE:

var lib_request = Class.create();
lib_request.prototype = {
    initialize: function() {
        this.room = '';
        this.build = '';
    },

    retrieve_variables: function(RITMsysid) {
        /*call the function this way:
var si=new cu_request().retrieve_variables('f9405a06db859cd0be49fe03f39619ee');
gs.print(si);
*/
        var arrReturn = [];
        try {
            var grRITM = new GlideRecord('sc_req_item');
            if (grRITM.get('sys_id', RITMsysid)) {
                var RITMvariables = grRITM.variables.getElements();
                for (var ix = 0; ix < RITMvariables.length; ix++) {
                    var question = RITMvariables[ix].getQuestion();
                    //gs.log(question.getLabel() + ":" + question.getValue());
                    var varValue = question.getDisplayValue();
                    var varLabel = question.getLabel();
                    if (varLabel == 'Building' || varLabel == 'Room') {
                        varValue = question.getValue();
                    }
                    arrReturn[ix] = (varLabel + ":" + varValue);
                }
            }
        } catch (ex) {

        }
        return arrReturn;
    },

    retrieve_variables_ootb: function(RITMsysid) {
        // Get the RITM variable data
        var build = "";
        var room = "";

        var keys = [];
        var set = new GlideappVariablePoolQuestionSet();
        set.setRequestID(RITMsysid);
        set.load();
        var vs = set.getFlatQuestions();
        var vardata = "";

        for (var i = 0; i < vs.size(); i++) {
            if (vs.get(i).getLabel() != '') {

                vardata = vardata + ('     ' + vs.get(i).getLabel() + " : " + vs.get(i).getDisplayValue() + "\n");

                if (vs.get(i).getLabel() == 'Building') {
                    build = vs.get(i).getValue();
                }
                if (vs.get(i).getLabel() == 'Room') {
                    room = vs.get(i).getValue();
                }

            }
        }
        this.room = room;
        this.build = build;
        return vardata;
    },

    variables_room: function() {
        return this.room;
    },
    variables_building: function() {
        return this.build;
    },

    type: 'lib_request'
};

CALL THE SCRIPT INCLUDE:

var si= new cu_request();
var vars=si.retrieve_variables_ootb('5430b054dbd590d083986b4bd396zzzz');
gs.print(vars);
var sroom=si.variables_room();
var sbuilding=si.variables_building();
gs.print('ROOM:' + sroom);
gs.print('BUILDING:'+sbuilding);

OUTPUT:


*** Script:      
     Requested for : R Smith
     What are you requesting? : test
     Business reasons for this request: test 123
     Building : Computer House
     Room : Monwodlian
    

*** Script: ROOM:20e651afdbfa1b00zzzzzc44db961976
*** Script: BUILDING:83c6d96fdbfa1b00ezzzzz44db96195b

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