Codeigniter 4 set_cookie Helper is not working

I have found this problem while working with cookies. A little bit information how problem occurs, please read carefully.

I'm using cookie helper. When I tried to create cookie in controller method it's working fine (No Problem).
But When I generated my own helper their I tried to set cookie using cookie helper, it's not generating cookie in the browser.

That's the issue with Codeigniter 4 Cookie Helper/Library.