Install libset-object-perl by entering the following commands in the terminal:
sudo apt update sudo apt install libset-object-perl
Description:
collection of objects without duplications
Set::Object module implements a Set of objects, that is, a collection of objects without duplications. It is similar to a Smalltalk IdentitySet.
Homepage: https://metacpan.org/release/Set-Object
Version: 1.39-1
Section: universe/perl