import type { PPTImageElement } from '../../types/slides';
export type QrCodeOptions = NonNullable<PPTImageElement['qrCode']>;
export declare const DEFAULT_QR: QrCodeOptions;
export declare function validateQrOptions(options: QrCodeOptions): void;
/** Encoder owns all QR structure/error correction. SVG is only a vector rendering of its module matrix. */
export declare function qrSvg(options: QrCodeOptions): string;
export declare const qrImageSrc: (options: QrCodeOptions) => string;