/** Generate a unique random string. @returns A 32 character unique string. Matches the length of MD5, which is [unique enough](https://stackoverflow.com/a/2444336/64949) for non-crypto purposes. @example ``` import uniqueString from 'unique-string'; uniqueString(); //=> 'b4de2a49c8ffa3fbee04446f045483b2' ``` */ export default function uniqueString(): string;