declare const safeHtmlBrand: unique symbol;
/**
 * Markup that has already been escaped or run through the sanitizer. The brand
 * makes the compiler - not code review - the thing that stops a raw document
 * string from reaching the DOM.
 */
export type SafeHtml = string & {
    readonly [safeHtmlBrand]: true;
};
/**
 * Brand a string as safe. Call this only on the result of an escape or a
 * `DOMPurify.sanitize()`, never on bytes that came straight out of a file.
 */
export declare function markSanitized(html: string): SafeHtml;
export declare const EMPTY_HTML: SafeHtml;
/**
 * Replace an element's children with parsed markup.
 *
 * The markup is parsed into a `<template>` first. Template content lives in an
 * inert document, so nothing fetches, loads, or runs while it is being parsed -
 * the nodes only become live once they are adopted below.
 */
export declare function setSafeHtml(el: Element, html: SafeHtml): void;
export {};