import { Observable } from 'rxjs';
import { ApiInterfaceRx } from '@polkadot/api/types';
import { DerivedRecentlyOffline } from '../types';
/**
 * @description Retrieve a keyed record of accounts recently reported to be offline
 */
export declare function recentlyOffline(api: ApiInterfaceRx): () => Observable<DerivedRecentlyOffline>;
