import { METRICS_MODULE_TOKEN } from '@tramvai/tokens-metrics';
import type { FastifyInstance } from 'fastify';
declare const METRICS_PAPI_TIMER = "_papi_metrics_timer";
declare module 'fastify' {
    interface FastifyRequest {
        [METRICS_PAPI_TIMER]: (labels?: Record<string, any>) => void;
    }
}
export interface AddPapiMetricsOptions {
    metrics: typeof METRICS_MODULE_TOKEN;
}
export declare const papiMetrics: (fastify: FastifyInstance, { metrics }: AddPapiMetricsOptions) => Promise<void>;
export {};
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