code: function listenToIpc(channel) {
    return Observable.create((subj) => {
      let listener = (event, ...args) => {
        d(`Got an event for ${channel}: ${JSON.stringify(args)}`);
        subj.next(args);
      };
  
      d(`Setting up listener! ${channel}`);
      ipc.on(channel, listener);
  
      return new Subscription(() =>
        ipc.removeListener(channel, listener));
    });
  }
docs: Turns an IPC channel into an Observable
  
  @param  {String} channel     The IPC channel to listen to via `ipc.on`
  
  @return {Observable<Array>}  An Observable which sends IPC args via `onNext`
  
  @private