/**
 * get-history rekey: adopt a client-supplied web-* thread only when this
 * account owns it (or it is still unclaimed). Disk ownerUserId wins even
 * when the in-memory token map is empty after a process restart.
 */
export interface ThreadOwnerStore {
    get(threadId: string): string | undefined;
    set(threadId: string, tokenId: string): void;
    delete(threadId: string): void;
    rekey?(oldId: string, newId: string): void;
}
export declare function applyWebHistoryRekey(opts: {
    wantedThreadId: string;
    clientId: string;
    accountUserId?: string;
    tokenId?: string;
    threadOwners?: ThreadOwnerStore;
    onAdopt: (nextThreadId: string) => void;
    onRefuse: () => Promise<void>;
}): Promise<'refused' | 'ok'>;
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