/**
 * Enable the portability capability.
 * Pass to `createNoydb({ portabilityStrategy: withPortability() })` to make a
 * vault's `user.exportMyAccessibleData` / `user.unilateralWithdrawal` /
 * `user.requestWithdrawal` / `user.listWithdrawalRequests` /
 * `user.approveWithdrawal` / `user.rejectWithdrawal` methods live. The
 * export/withdraw/request engines are dynamically imported here, so they stay
 * reachable only via opt-in.
 */
import type { PortabilityStrategy } from './strategy.js';
export declare function withPortability(): PortabilityStrategy;