export interface TaskStats {
    name: string;
    startedAt: number;
    finishedAt?: number;
    totalExpectedSuccessActions: number | undefined;
    successActions: number;
}
export declare class GlobalTaskManagerClass {
    private static instance;
    private constructor();
    static getInstance(): GlobalTaskManagerClass;
    private tasks;
    start(name: string, totalExpectedSuccessActions?: number): void;
    addProgress(name: string): void;
    protected progress(name: string, bytes: number): void;
    stop(name: string, doneCallback?: () => any): void;
    get(name: string): TaskStats;
    getAll(): TaskStats[];
}
export declare const GlobalTaskManager: GlobalTaskManagerClass;