1  /**
 2  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).
 3  
 4  @param codePoint - The [code point](https://en.wikipedia.org/wiki/Code_point) of a character.
 5  
 6  @example
 7  ```
 8  import isFullwidthCodePoint from 'is-fullwidth-code-point';
 9  
10  isFullwidthCodePoint('谢'.codePointAt(0));
11  //=> true
12  
13  isFullwidthCodePoint('a'.codePointAt(0));
14  //=> false
15  ```
16  */
17  export default function isFullwidthCodePoint(codePoint: number): boolean;