/** One id for this page load, shared by every pageview until it reloads. */
export declare function getAnalyticsPageLoadId(): string;
/**
 * The visitor id, `an_aid`, waits for analytics consent where the banner
 * applies, and for the server's region rather than the time zone's guess,
 * since a sent id can't be recalled. Until then this returns `undefined` and
 * stores nothing, so events still count but can't be tied to one visitor
 * across pages.
 */
export declare function getOrCreateAnalyticsAnonymousId(): string | undefined;
export declare function setAnalyticsSessionId(sessionId: string): string | undefined;
export declare function clearAnalyticsSessionId(): void;
export declare function getOrCreateAnalyticsSessionId(): string | undefined;