import type { Browser } from 'playwright';
import type { PageReady, Probe, Viewport, WalkReport } from './types.js';
export type WalkInput = {
    browser?: Browser;
    expected?: Record<string, number>;
    gpu?: boolean;
    options?: Record<string, Record<string, unknown>>;
    probes: Probe[];
    ready?: Record<string, PageReady>;
    readyTimeoutMs?: number;
    urls: string[];
    versionKey?: string;
    viewport: Viewport;
};
/** Imported here, not at module top: a consumer without a browser gets a sentence naming what to install, and the ratchet importing this package's types must not drag one in. */
export declare const launchBrowser: (gpu?: boolean) => Promise<Browser>;
export declare const VERSION_KEY = "Cloudflare-Workers-Version-Key";
/** Each page gets its own context with no cookies or storage, which is what gives `fake-session` meaning. Refusals come before the browser opens, a page that answers is walked whatever its status, and a page that answers nothing stops the walk. */
export declare const walk: ({ browser, expected, gpu, options, probes, ready, readyTimeoutMs, urls, versionKey, viewport }: WalkInput) => Promise<WalkReport>;
export declare const findingsIn: (report: WalkReport) => number;