import { ImageCanvasOptions } from './image';
/**
 * Find all URLs in svg, download them and replace with the URL in svg with the downloaded data URLs.
 * @param str - string
 * @param downloader - function to download the URLs in svg and return the data URL
 *
 * @category HTML To Image
 */
export declare function embedUrlRefs(str: string, downloader?: (p: string) => Promise<string>): Promise<string>;
/**
 * Embeds an HTML string into a svg tag and converts to svg string or svg as data url
 * @param html - HTML string
 * @param style - CSS string
 * @param width - width of the svg
 * @param height - height of the svg
 * @param toDataUrl - if true, returns a data url, otherwise returns the svg string
 * @returns svg string or svg as data url
 *
 * @category HTML To Image
 */
export declare function htmlToSvg(html: string, style: string, { width, height }: {
    width: number;
    height: number;
}, toDataUrl?: boolean): string;
/**
 * Renders an HTML string to a canvas. This is done by first embedding HTML into a svg and then rendering the svg to a canvas.
 * @param html - HTML string
 * @param style - CSS string
 * @param options - options for rendering the canvas
 * @returns HTML canvas element
 *
 * @category HTML To Image
 */
export declare function htmlToCanvas(html: string, style: string, options: ImageCanvasOptions): Promise<HTMLCanvasElement>;
/**
 * Renders an HTML string to a png. This is done by first embedding HTML into a svg and then rendering the svg to a png.
 * @param html
 * @param style
 * @param options
 * @returns png as data url
 *
 * @category HTML To Image
 */
export declare function htmlToPng(html: string, style: string, options: ImageCanvasOptions): Promise<string>;
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