declare const enum Flags {
    InitCalled = 1,
    NavTimingNotSupported = 2,
    UserTimingNotSupported = 4,
    VisibilityStateNotVisible = 8,
    BeaconSentFromUnloadHandler = 16,
    BeaconSentAfterTimeout = 32,
    PageLabelFromDocumentTitle = 64,
    PageLabelFromLabelProp = 128,
    PageLabelFromGlobalVariable = 256,
    PageLabelFromUrlPattern = 512,
    PageWasPrerendered = 1024,
    PageWasBfCacheRestored = 2048,
    BeaconBlockedByCsp = 4096
}
export declare function addFlag(flags: number, flag: number): number;
export declare function removeFlag(flags: number, flag: number): number;
export declare function hasFlag(flags: number, flag: number): boolean;
export default Flags;