/**
 * Generate a unique identifier with or without `separator`.
 *
 * Based on https://stackoverflow.com/a/2117523.
 *
 * @param separator
 */
export declare const v4Browser: (separator?: string) => string;
export declare const v4Node: (separator?: string) => string;
export declare const generate: (separator?: string, version?: string) => string;
/**
 * Generate multiple, concatenated uuids.
 *
 * @param count default `2`
 * @param separator
 * @returns
 */
export declare const multiple: (count?: number, separator?: string) => string;