type GracefulShutdownOptions = {
    onSignal: (signal: NodeJS.Signals) => void | Promise<void>;
    onForce?: () => void;
    forceKillAfterMs?: number;
    coalesceWindowMs?: number;
    exitCode?: (signal: NodeJS.Signals, isGraceful: boolean) => number;
};
declare function installGracefulShutdown(options: GracefulShutdownOptions): void;
export { installGracefulShutdown };
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