function isWrapped(node) {
            var openParensToken = file.getPrevToken(file.getFirstNodeToken(node));

            var closingParensToken = file.getNextToken(file.getLastNodeToken(node));
            var closingTokenValue = closingParensToken ? closingParensToken.value : '';

            return openParensToken.value + closingTokenValue === '()';
        }
Requires parentheses around immediately invoked function expressions.

Type: `Boolean`

Value: `true`

JSHint: [`immed`](http://www.jshint.com/docs/options/#immed)

#### Example

```js
"requireParenthesesAroundIIFE": true
```

##### Valid

```js
var a = (function(){ return 1; })();
var b = (function(){ return 2; }());
var c = (function(){ return 3; }).call(this, arg1);
var d = (function(){ return 3; }.call(this, arg1));
var e = (function(){ return d; }).apply(this, args);
var f = (function(){ return d; }.apply(this, args));
```

##### Invalid

```js
var a = function(){ return 1; }();
var c = function(){ return 3; }.call(this, arg1);
var d = function(){ return d; }.apply(this, args);
```