I'm a bit surprised why nobody mentioned signatures:

#!/usr/bin/env perl

# http://perlmonks.org/?node_id=1195793
#     $Id: signatures.pl,v 1.3 2017/07/23 12:44:30 karl Exp karl $

use strict;
use warnings;
use feature qw(say);
use signatures;

say $^V;

say nose(q(cuke));

sub nose ($cuke) {
    $cuke;
}

__END__

[download]

But perhaps i missed the point because i don't know Perl6.

Best regards, Karl

«The Crux of the Biscuit is the Apostrophe»

perl -MCrypt::CBC -E 'say Crypt::CBC->new(-key=>'kgb',-cipher=>"Blowfish")->decrypt_hex($ENV{KARL});'Help

In reply to Re: sub variables by karlgoethebier
in thread sub variables by Todd Chester

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