/**
 * SessionIdentity — generates unique user_id / session_id values per account
 * so that Anthropic sees consistent "user" fingerprints even when requests are
 * spread across multiple accounts.
 *
 * The generated metadata matches Claude Code's shape:
 *   {"device_id":"<64 hex>","account_uuid":"<uuid>","session_id":"<uuid>"}
 */
import type { CloakingPlugin } from "../../../types/index.js";
export declare function purgeExpiredSessions(): void;
export declare function createSessionIdentity(): CloakingPlugin;