import type { ClocksState } from '@openobserve/browser-core';
import type { InitialViewMetrics } from './trackInitialViewMetrics';
/**
 * BFCache keeps a full in-memory snapshot of the DOM. When the page is restored, nothing needs to be fetched, so the whole
 * viewport repaints in a single frame. Consequently, LCP almost always equals FCP.
 * (See: https://github.com/GoogleChrome/web-vitals/pull/87)
 */
export declare function trackBfcacheMetrics(viewStart: ClocksState, metrics: InitialViewMetrics, scheduleViewUpdate: () => void): void;