timrwood/grunt-ipsum

module.exports = function (obj, key, cb, defaults) {
    defaults = defaults || [];
    Object.defineProperty(obj, key, {
        get: function () {
            function getInner() {
                var args = [].slice.apply(arguments), i;
                for (i = args.length; i < defaults.length; i++) {
                    args[i] = defaults[i];
                }
                return cb.apply(null, args);
            }
            getInner.toString = getInner.toJSON = getInner.valueOf = getInner;
            return getInner;
        }
    });
};