type HealthcheckFn = () => Promise<void>;
export declare class HealthcheckService {
    private checks;
    register(name: string, fn: HealthcheckFn): void;
    check(): Promise<void>;
    checkIndividual(): Promise<{
        name: string;
        status: 'ok' | 'error';
        error?: string;
    }[]>;
}
export {};
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