export declare const RANDOM_STRING_ALPHA_NUMERIC: string;
export declare const RANDOM_STRING_ALPHA_NUMERIC_LOWER: string;
export declare const RANDOM_STRING_ALPHA_NUMERIC_UPPER: string;
export declare const RANDOM_STRING_ALPHA: string;
export declare const RANDOM_STRING_ALPHA_LOWER: string;
export declare const RANDOM_STRING_ALPHA_UPPER: string;
export declare const RANDOM_STRING_NUMERIC: string;
export declare const RANDOM_STRING_SYMBOLS: string;
export declare const RANDOM_STRING_PASSWORD: string;
export interface RandomStringOptions {
    /**
     * The length of the random string to generate.
     * Minimum is `1`.
     */
    length: number;
    /**
     * The characters to use when generating the random string.
     * Default is `ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789`.
     */
    characters?: string;
}
/**
 * Generate a random string.
 *
 * @param options - The options to use when generating the random string.
 * @returns The random string.
 */
export declare function randomString(options: RandomStringOptions): string;