/**
 * Split a string literal into an tuple of characters.
 *
 * @example
 * ```
 * type MyChars = Chars<'abc'> // ['a', 'b', 'c']
 * ```
 */
export type Chars<S extends string, A extends string[] = []> = S extends `${infer C}${infer R}` ? Chars<R, [...A, C]> : A;