export interface IClosablePromise {
    close(): void | PromiseLike<void>;
}
export interface IClosableCallback {
    close(callback: Function): void;
}
export declare function globalWorkingCallback(id: string, object: IClosableCallback): void;
export declare function globalWorking(id: string, object: IClosablePromise): void;
export declare function graceFullExit(ret?: number): Promise<never>;