| /** |
| Check if the character represented by a given [Unicode code point](https://en.wikipedia.org/wiki/Code_point) is [fullwidth](https://en.wikipedia.org/wiki/Halfwidth_and_fullwidth_forms). |
| |
| @param codePoint - The [code point](https://en.wikipedia.org/wiki/Code_point) of a character. |
| |
| @example |
| ``` |
| import isFullwidthCodePoint from 'is-fullwidth-code-point'; |
| |
| isFullwidthCodePoint('谢'.codePointAt(0)); |
| //=> true |
| |
| isFullwidthCodePoint('a'.codePointAt(0)); |
| //=> false |
| ``` |
| */ |
| export default function isFullwidthCodePoint(codePoint: number): boolean; |