import type { BrowserContext, Page } from '@playwright/test';
/** Test seam: makes every replay take the userland engine, as a thin client would. */
export declare function setForcedFallbackReplay(enabled: boolean): void;
/**
 * Replays a dump through Playwright's own `routeFromHAR`, keeping its router and
 * its response timing, while still honouring the transforms of this package.
 *
 * Returns `false` when the seam is not available, so that the caller can fall
 * back to the userland engine.
 */
export declare function tryNativeHarReplay(target: Page | BrowserContext, routeFromHAR: (har: string, options: Record<string, unknown>) => Promise<void>, file: string, options: Record<string, unknown>): Promise<boolean>;