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my %hash;
$hash{beta} = 'x';
...

use Data::Dumper;
print Dumper \%hash;

$VAR1 = {
          'alpha' => [
...
                     ],
          'beta' => 'x'
        };

print Dumper \@x;

$VAR1 = [
          123,
          456
        ];

use strict;

Can't use string ("x") as an ARRAY ref while "strict refs" in use at t
+est.pl line 6.