@omneedia/socketcluster/sample/node_modules/rxjs/src/add/observable/zip.ts

SocketCluster - A Highly parallelized WebSocket server cluster to make the most of multi-core machines/instances.

import { Observable } from '../../Observable';
import { zip as zipStatic } from '../../observable/zip';

Observable.zip = zipStatic;

declare module '../../Observable' {
  namespace Observable {
    export let zip: typeof zipStatic;
  }
}