import { ObservabilityOptions } from '../types';
type FastifyInstance = {
    addHook: (event: string, fn: (...args: any[]) => any) => void;
    decorateRequest: (key: string, value: unknown) => void;
};
export declare function fastifyObservability(fastify: FastifyInstance, options: ObservabilityOptions, done: () => void): void;
export {};
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