/**
 * Server-side rendering utility. Generates the harmonised scrollbar HTML attributes so a
 * product's server can spread them onto the server-rendered `<html>` element. This avoids the
 * flash of un-harmonised scrollbars that would otherwise occur while waiting for
 * `useScrollbarHarmonisation`'s client-only effect to run.
 *
 * @param input - A boolean overrides the base appearance, while transparency still requires
 * both shared gates. When omitted, the shared gates control the appearance. An object supplies
 * both product-resolved gate results without evaluating shared gates; transparency requires
 * `isEnabled` and `isTransparentEnabled` to both be true.
 *
 * @returns {Object} Object of HTML attributes to be applied to the document root
 */
export declare function getScrollbarHarmonisationHtmlAttrs(input?: boolean | {
    isEnabled: boolean;
    isTransparentEnabled: boolean;
}): Record<string, string>;
export default getScrollbarHarmonisationHtmlAttrs;