import { IMetricsBatch } from '../http/contracts';
import { Logger } from '../contracts';
import { IHttpMetricsStore } from './contracts';
export declare class HttpMetricStore implements IHttpMetricsStore {
    private logger;
    private completedRequests;
    private onGoingRequestsMap;
    private bucketStartTimestamp;
    constructor(logger: Logger);
    getMetrics(): IMetricsBatch;
    registerRequestStart(txId: string, endpoint: string, method: string, timestamp?: number): void;
    registerRequestEnd(txId: string, timestamp?: number, status?: number): any;
    registerRequest(txId: string, endpoint: string, method: string, start: number, end: number, status?: number): void;
    flush(timestamp?: number): void;
}