/**
 * Pads `string` on the left and right sides if it's shorter than `length`.
 * Padding characters are truncated if they can't be evenly divided by `length`.
 *
 * @since 5.12.0
 * @category String
 * @param string The string to pad.
 * @param length The padding length.
 * @param chars The string used as padding.
 * @returns Returns the padded string.
 * @example
 *
 * ```js
 * pad('abc', 8)
 * // => '  abc   '
 *
 * pad('abc', 8, '_-')
 * // => '_-abc_-_'
 *
 * pad('abc', 2)
 * // => 'abc'
 * ```
 */
export declare function pad(string?: string, length?: number, chars?: string): string;
export default pad;