Install libclass-inner-perl by entering the following commands in the terminal:
sudo apt update sudo apt install libclass-inner-perl
Description:
module providing Java-like inner classes
Class::Inner is an implementation of an anonymous class with per-object overrideable methods, but with the added attraction of sort-of-working dispatch to the parent class's method.
Homepage: https://metacpan.org/release/Class-Inner
Version: 0.200001-2
Section: universe/perl