import { FastifyInstance } from 'fastify';
import { IFastifyMetrics } from 'fastify-metrics';
/**
 * Creates a Fastify server that handles Prometheus metrics and CORS headers automatically.
 * @returns Fastify instance
 */
export declare function buildFastifyApiServer(): Promise<FastifyInstance>;
/**
 * Creates a Fastify server that serves a `/metrics` endpoint with metrics taken from
 * `FastifyMetrics`.
 * @param args - Fastify instance metrics decorator
 * @returns Fastify instance
 */
export declare function buildPrometheusServer(args: {
    metrics: IFastifyMetrics;
}): Promise<FastifyInstance>;