import { INestApplication, INestMicroservice } from "@nestjs/common";
export declare class ShutdownAwareHandler {
    private static pendingTasks;
    private static isInitialized;
    private static isShuttingDown;
    private static defaultTimeout;
    private static logger;
    private static apps;
    static setDefaultTimeout(timeoutMs: number): void;
    static executeCriticalTask<T>(task: () => Promise<T>): Promise<T>;
    private static signalShutdownAndWait;
    static addShutdownHooks(...apps: (INestApplication | INestMicroservice)[]): void;
    private static handleShutdown;
}