Install libreturn-type-perl by entering the following commands in the terminal:
sudo apt update sudo apt install libreturn-type-perl
Description:
specify a return type for a function (optionally with coercion)
Return::Type allows you to specify a return type for your subs. Type constraints from any Type::Tiny, MooseX::Types or MouseX::Types type library are supported.
Homepage: https://metacpan.org/release/Return-Type
Version: 0.005-1
Section: universe/perl