How do you call a function from within another function in a module.exports declaration?

I have MVC structure node js project and a controller called TestController.js. I want to access method within controller, but using this keyword gives below error:

cannot call method getName of undefined

use strict

module.exports = {

    myName : function(req, res, next) {

        // accessing method within controller

        this.getName(data);

    },



    getName : function(data) {

        // code

    }

}

How do I access methods within controller?