19:39 >perl pod.pl
4

19:41 >perl -MO=Deparse pod.pl
Compiling pod.pl by macro::compiler/0.06 ...
sub Digest::base::clone;
sub Digest::base::new;
sub Digest::base::digest;
sub Digest::base::add;
use macro ('add', sub {
    use warnings;
    use strict;
    $_[0] + $_[1];
}
, 'say', sub {
    use warnings;
    use strict;
    print @_, "\n";
}
);
use warnings;
use strict;
print 4, "\n";
pod.pl syntax OK

19:41 >