You could also checkout the cute little module Class::Data::Inheritable for an alternative solution...

#!/usr/bin/perl

use strict;
use warnings;
use base 'Class::Data::Inheritable';

my %data = ( "blah"=>1, "boo"=>2, "hoo"=>3 );

# assign each key to a variable of the same name
foreach (keys %data) {
  # no strict;
  __PACKAGE__->mk_classdata($_, $data{$_});
} # end-foreach

print blah();

exit;
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