How to use session()->close()?

@Renta Ardhana, The best way to understand things like the session methods etc, is to view the source files
in .\system folder.

If you look at the methods you should be able to understand what the developers are doing and how the methods work.

When I first started using CI 1.6.2 back in 2014 I sat down on the weekends and just kept reading the CodeIgniter Users Guide
over and over to get a very good under standing of what was going on etc. I also skimmed through the .\system files to understand
what they were doing.

Just my personal opinion.

@InsiteFX thanks for sharing your experience.