import { Flow as FlowDefinition } from '@chix/common';
import { ILoader, LoaderResponse } from '@chix/loader';
import { RemoteLoader } from '@chix/loader-remote';
import { FSLoaderConfig, LoadNodeResult, NodeDefinitionLocationFS } from './types';
/**
 *  Loads and saves definitions from/to the local cache file.
 */
export declare class FSLoader extends RemoteLoader implements ILoader {
    opts: FSLoaderConfig;
    _cacheFile: string;
    constructor(opts?: FSLoaderConfig);
    /**
     *
     *  Loads all definitions from the database.
     *  Any missing pieces will be loaded by remote Loader.
     *
     *  If you use `update` all definitions in the database will be refreshed.
     *
     * @param {Object} flow
     * @param {Boolean} update
     */
    load(flow: FlowDefinition[] | FlowDefinition, update?: boolean): Promise<LoaderResponse>;
    /**
     *
     * Loads a local file
     *
     * @param {NodeDefinitionLocationFS} location
     */
    loadFile(location: NodeDefinitionLocationFS): Promise<LoadNodeResult>;
    /**
     * Saves the internal state to disk
     */
    syncState(): void;
}