/** First-party `localStorage` key holding the SDK-generated anonymous id. */
export declare const RULECMS_ANONYMOUS_ID_STORAGE_KEY = "rulecms_anon_id";
/**
 * Anonymous id used as `params.anonId` for experiments.
 *
 * Persists in `localStorage` under `rulecms_anon_id` when that exists (web).
 * React Native has no `localStorage`, so the id lasts for the process instead.
 * A storage exception still returns an id for this call without persisting it.
 */
export declare function getOrCreateAnonymousId(): string;
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