import type { Browser, Page } from '@playwright/test';
interface SSRPageConfig {
    demoDir?: URL;
    demoContent?: string;
    importSpecifiers: string[];
    tagName: string;
    browser: Browser;
}
/**
 * Creates a server which server-renders each html file in the `demoDir` directory,
 * given a list of importSpecifiers.
 */
export declare class SSRPage {
    private config;
    private app;
    private server;
    private host;
    private demoPaths;
    page: Page;
    constructor(config: SSRPageConfig);
    private middleware;
    private initPage;
    private initServer;
    private close;
    /**
     * Take a visual regression snapshot and save it to disk
     * @param url url to the demo file
     */
    private snapshot;
    /**
     * Creates visual regression snapshots for each demo in the server's `demoDir`
     */
    snapshots(): Promise<void>;
    updateCompleteFor(tagName: string): Promise<void>;
}
export {};