import { MetricId } from './types';
export declare namespace BenchmarkReporter {
    const result: (metricId: MetricId) => number | null;
    const setWorker: (w: Worker) => void;
    const report: (params: {
        value: number;
        metricId: MetricId;
    }) => void;
    const engage: <T>(metricId: MetricId, callback: Function) => Promise<T>;
    const clear: () => void;
}
