import { Task, Scheduler } from "./scheduler";
export interface TasksJsonFile {
    running: Task[];
    pending: Task[];
}
export declare class Persistence {
    private scheduler;
    CrawlerDirPath: string;
    TaskFilePath: string;
    constructor(scheduler: Scheduler);
    /**
     * Load the last tasks from file
     * @returns Whether load success or not
     */
    load(): boolean;
    /**
     * Sync current task to file
     * @param runningTasks
     * @param pendingTasks
     */
    sync(runningTasks: Task[], pendingTasks: Task[]): void;
}