import type { TabSessionEvent, TabSessionLifecycleOrder, TabSessionMessage, TabSessionStorageNotification } from './types.js';
export declare const tabSessionSyncStorageKey = "payload:auth-session:tab-sync";
export declare const tabSessionSyncChannelName = "payload-auth-session-tab-sync";
export declare function isTabSessionMessage(value: unknown): value is TabSessionMessage;
export declare function isTabSessionStorageNotification(value: unknown): value is TabSessionStorageNotification;
export declare function parseTabSessionStorageNotification(event: StorageEvent): null | TabSessionStorageNotification;
/**
 * Orders two lifecycle events from oldest to newest.
 *
 * A refresh is ordered from when it started rather than when its response was published. This
 * prevents a refresh that began before a logout or expiration from restoring that older session.
 */
export declare function compareLifecycleOrders({ first, second, }: {
    first: TabSessionLifecycleOrder;
    second: TabSessionLifecycleOrder;
}): number;
export declare function getLifecycleOrder(event: {
    sentAt: number;
    sourceTabID: string;
} & TabSessionEvent): TabSessionLifecycleOrder;
export declare function createTabSessionMessage({ event, sentAt, sourceTabID, }: {
    event: TabSessionEvent;
    sentAt: number;
    sourceTabID: string;
}): TabSessionMessage;
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