/** * @license * Copyright Google LLC All Rights Reserved. * * Use of this source code is governed by an MIT-style license that can be * found in the LICENSE file at https://angular.dev/license */ /** * Transforms the provided HTML by adding the `ngcm` attribute to the `` tag. * This is used in the client-side rendered (CSR) version of `index.html` to prevent hydration warnings. * * @param html The HTML markup to be transformed. * @returns A promise that resolves to the transformed HTML string with the necessary modifications. */ export declare function addNgcmAttribute(html: string): Promise;