import { HealthCheckResult, HealthCheckService, HealthIndicatorFunction, HealthIndicatorService } from '@nestjs/terminus';
export type HealthCheck = () => boolean | Promise<boolean>;
export declare class HealthRegistryService {
    private readonly health;
    private readonly healthIndicatorService;
    private readonly _livenessChecks;
    private readonly _readinessChecks;
    constructor(health: HealthCheckService, healthIndicatorService: HealthIndicatorService);
    get livenessChecks(): HealthIndicatorFunction[];
    get readinessChecks(): HealthIndicatorFunction[];
    checkLiveness(): Promise<HealthCheckResult>;
    checkReadiness(): Promise<HealthCheckResult>;
    addLivenessCheck(key: string, check: HealthCheck): void;
    addReadinessCheck(key: string, check: HealthCheck): void;
    removeLivenessCheck(key: string): void;
    removeReadinessCheck(key: string): void;
}