import type { FastifyPluginCallback } from 'fastify';
import type { CommonFastifyInstance } from '../pluginsCommon.js';
import type { HealthChecker } from './healthcheckCommons.js';
export interface HealthcheckMetricsPluginOptions {
    healthChecks: readonly PrometheusHealthCheck[];
}
export type HealthcheckResult = {
    checkTimeInMsecs: number;
    checkPassed: boolean;
};
export type PrometheusHealthCheck = {
    name: string;
    checker: (app: CommonFastifyInstance) => Promise<HealthcheckResult>;
};
/**
 * Execute healthcheck and calculate the check time
 */
export declare const wrapHealthCheckForPrometheus: (healthCheck: HealthChecker, healthcheckName: string) => PrometheusHealthCheck;
export declare const healthcheckMetricsPlugin: FastifyPluginCallback<HealthcheckMetricsPluginOptions>;