/// <reference types="node" />
import Segment from '../trace/context/segment';
import { EventEmitter } from 'events';
declare interface FastTrackerEventEmitter {
    on(event: 'segment-finished', listener: (segment: Segment) => void): this;
}
declare class FastTrackerEventEmitter extends EventEmitter {
}
declare const emitter: FastTrackerEventEmitter;
export default emitter;