declare type PadOptions = {
    /**
     * the symbol to pad the string with
     */
    symbol: string;
    /**
     * pad mode `before`, `after` or `balanced`.
     */
    mode: 'after' | 'before' | 'balanced';
    /**
     * if true add padding up to `len`.
     *
     * e.g.
     *
     * `pad("ariel", 7, {symbol: '_', include: true, mode: 'after'})` => `"ariel__"` (only 2 symbol added)
     *
     * `pad("ariel", 7, {symbol: '_', include: false, mode:'after'})` => `"ariel_______"` (all 7 symbol added)
     *
     */
    include: boolean;
};
declare function pad(str: string, len: number, options?: Partial<PadOptions>): string;
export default pad;