// Here's how you get Joose

Class("Oven", {
    has: {
        on_button: {
            is: "rw",
            init: false
        }
    },
    methods: {
        roast: function(food) {
            // some code
        }
    }
});

// use it

var my_spanking_new_oven = new Oven();

my_spanking_new_oven.setOn_button(true);

var food = "Chicken";

my_spanking_new_oven.roast(food);

// win!