It's still available on BackPAN but its author has deprecated it in favour of Test::Vars.

package Cow { use Moo; has name => (is => 'lazy', default => sub { 'Mooington' }) } say Cow->new->name

In reply to Re: use warnings::unused don't work in perl 5.16.2.1 (32bits) by tobyink
in thread use warnings::unused don't work in perl 5.16.2.1 (32bits) by gepebril69

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