/**
 * All letters allowed in {@link randomString}.
 *
 * @category Random : Util
 * @category Package : @augment-vir/common
 * @package [`@augment-vir/common`](https://www.npmjs.com/package/@augment-vir/common)
 */
export declare const allowedRandomStringLetters: ReadonlyArray<string>;
/**
 * Creates a random string (including letters and numbers) of a given length.
 *
 * This function uses cryptographically secure randomness.
 *
 * @category Random
 * @category Package : @augment-vir/common
 * @package [`@augment-vir/common`](https://www.npmjs.com/package/@augment-vir/common)
 */
export declare function randomString(generatedStringLength?: number): string;