import asyncHooks from 'async_hooks';
type Resource = {
    type: string;
    stacks: NodeJS.CallSite[];
    resource: {
        hasRef?: () => boolean;
    };
};
export type NodeIntrospection = {
    hook: asyncHooks.AsyncHook | null;
    active: Map<number, Resource>;
};
export declare const enableNodeIntrospection: (enabled: boolean) => NodeIntrospection;
export declare function whyIsNodeRunning({ active, hook }: NodeIntrospection): void;
export {};