import { Context } from '@eggjs/core';
import type { Tracer } from '../../lib/tracer.js';
declare const TRACER: unique symbol;
export default class TracerContext extends Context {
    [TRACER]: Tracer | undefined;
    get tracer(): Tracer;
    get traceId(): string;
}
declare module '@eggjs/core' {
    interface Context {
        tracer: Tracer;
        traceId: string;
    }
}
export {};