/** * @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.io/license */ /// import { Tree } from '@angular-devkit/schematics'; import { DefaultTreeElement } from 'parse5'; /** Appends the given element HTML fragment to the `` element of the specified HTML file. */ export declare function appendHtmlElementToHead(host: Tree, htmlFilePath: string, elementHtml: string): void; /** Parses the given HTML file and returns the head element if available. */ export declare function getHtmlHeadTagElement(htmlContent: string): DefaultTreeElement | null; /** Adds a class to the body of the document. */ export declare function addBodyClass(host: Tree, htmlFilePath: string, className: string): void;