#!/usr/bin/perl -w
use strict;
use warnings;
use Test::More;
BEGIN {
    plan skip_all => "Data::Alias not available" unless eval { require Data::Alias };
    plan 'no_plan';
}
{
    package Stuff;
    use Test::More;
    use Method::Signatures;
    method add_meaning($arg is alias) {
        $arg += 42;
    }
    my $life = 23;
    Stuff->add_meaning($life);
    is $life, 23 + 42;
}