import { Label, draw } from 'barcode-bakery-common';
import { Ean13 } from './Ean13.js';
/**
 * Constructor.
 */
declare class Upca extends Ean13 {
    /**
     * The label on the right.
     */
    protected labelRight: Label | null;
    constructor();
    /**
     * Draws the barcode.
     *
     * @param image The surface.
     */
    draw(image: draw.Surface): void;
    /**
     * Draws the extended bars on the image.
     *
     * @param im The surface.
     * @param plus How much more we should display the bars.
     */
    _drawExtendedBars(im: draw.Surface, plus: number): void;
    /**
     * Adds the default label.
     */
    protected addDefaultLabel(): void;
    /**
     * Check correct length.
     */
    protected checkCorrectLength(): void;
}
export { Upca };