///
import { HystrixCommandMetrics } from '../metrics/hystrix/hystrixCommandMetrics';
import { Observable } from 'rxjs';
import http = require('http');
export declare class HystrixSSEStream {
static getHandler(): (request: http.IncomingMessage, response: http.ServerResponse) => void;
static toObservable(delay?: number): Observable;
static toCommandJson(metrics: HystrixCommandMetrics): string;
}