import { QuietWindowSearch } from './QuietWindowSearch';
export declare class VisuallyReadySearch {
    private fcpTime?;
    private lcpTime?;
    private domContentLoadedEventEnd?;
    private visuallyReadyTimestamp;
    private quietWindowSearch;
    private timeIntervals;
    private fcpSupported;
    private lcpSupported;
    private visualReadyInterval;
    private cleanupVisuallyReadySearch;
    private CHECK_PERIOD;
    private VISUALLY_READY_RESOLVE_TIMEOUT;
    constructor(quietWindow: QuietWindowSearch);
    private startVisualReadyInterval;
    private visualReadyIntervalHandler;
    protected isOkToResolveVisuallyReady(isCheckTimedOut: boolean): boolean;
    private handleWebVitals;
    private initListeners;
    navEventListener: () => void;
}