import type { PostgreSQL } from "@cocalc/database/postgres/types";
import express from "express";
interface HealthcheckData {
    code: 200 | 404;
    txt: string;
}
export declare function set_agent_endpoint(port: number, host: string): void;
export interface Check {
    status: string;
    abort?: boolean;
}
interface Opts {
    db: PostgreSQL;
    router: express.Router;
    extra?: (() => Promise<Check>)[];
}
export declare function process_alive(): HealthcheckData;
export declare function setup_health_checks(opts: Opts): Promise<void>;
export {};