hunk.code_window: import { _finally, FinallySignature } from '../../operator/finally';
   Observable.prototype.finally = _finally;
   declare module '../../Observable' {
     interface Observable<T> {
       finally: FinallySignature<T>;
  
hunk.labels: keep keep add keep keep keep keep
hunk.after_edit: Observable.prototype._finally = _finally;
  
hunk.file_path: src/add/operator/finally.ts
hunk.type: add
file: import { Observable } from '../../../Observable';
  import { webSocket as staticWebSocket } from '../../../observable/dom/webSocket';
  
  Observable.webSocket = staticWebSocket;
  
  declare module '../../../Observable' {
    namespace Observable {
      export let webSocket: typeof staticWebSocket;
    }
  }