function isNotABlockStatement(node) {
            return node && node.type !== 'BlockStatement';
        }
Requires curly braces after statements.

Types: `Array` or `Boolean` or `Object`

Values:
- Array of quoted keywords
- `true` to require curly braces after the following keywords
- `Object`
    - `'keywords'`
        - Array of quoted keywords
    - `'allExcept'`
        - Array of keywords inside of the block that would allow curly braces
        - Ex: ["return" , "continue", "break"]

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

#### Example

```js
"requireCurlyBraces": [
    "if",
    "else",
    "for",
    "while",
    "do",
    "try",
    "catch",
    "case",
    "default"
]
```

##### Valid

```js
if (x) {
    x++;
}
```

##### Invalid

```js
if (x) x++;
```