/**
 * Generate a random id of designated length
 *
 * @param length - The desired length of the id (minimum 2)
 * @returns A random generated id of a specified length
 *
 * @example
 * ```ts
 * randomId(); // --> eg. 'efuc6f1n4xf'
 * randomId(20); // --> eg. '3vsmrbxlh9at0vhcsf1xh'
 * ```
 */
export declare function randomId(length?: number): string;
export default randomId;