import { SearchIndexes, StorageInterface } from './types';
export declare const persistExportDate: (storage: StorageInterface) => Promise<void>;
export declare const getExportDate: (storage: StorageInterface) => Promise<string | null>;
export declare const exportSearchIndexes: (storage: StorageInterface, searchIndexes: SearchIndexes) => Promise<void>;
export declare const importSearchIndexes: (storage: StorageInterface) => Promise<SearchIndexes>;