How to use the @nteract/messaging.inputRequests function in @nteract/messaging

cellMessages.pipe(
      outputs() as any,
      map((output: OnDiskOutput) =>
        actions.appendOutput({ id, output, contentRef })
      )
    ),

    // clear_output display message
    cellMessages.pipe(
      ofMessageType("clear_output") as any,
      mapTo(actions.clearOutputs({ id, contentRef }))
    ),

    // Prompt the user for input
    cellMessages.pipe(
      inputRequests() as any,
      map((inputRequest: InputRequestMessage) => {
        return actions.promptInputRequest({
          id,
          contentRef,
          prompt: inputRequest.prompt,
          password: inputRequest.password
        });
      })
    )
  );

  // On subscription, send the message
  return Observable.create((observer: Observer) => {
    const subscription = cellAction$.subscribe(observer);
    channels.next(executeRequest);
    return subscription;

cellMessages.pipe(
      outputs() as any,
      map((output: OnDiskOutput) =>
        actions.appendOutput({ id, output, contentRef })
      )
    ),

    // clear_output display message
    cellMessages.pipe(
      ofMessageType("clear_output") as any,
      mapTo(actions.clearOutputs({ id, contentRef }))
    ),

    // Prompt the user for input
    cellMessages.pipe(
      inputRequests() as any,
      map((inputRequest: InputRequestMessage) => {
        return actions.promptInputRequest({
          id,
          contentRef,
          prompt: inputRequest.prompt,
          password: inputRequest.password
        });
      })
    )
  );

  // On subscription, send the message
  return Observable.create((observer: Observer) => {
    const subscription = cellAction$.subscribe(observer);
    channels.next(executeRequest);
    return subscription;