Thank you for your reply. I have done so before to check my self too. It seems though that this method don't exist.
But either don't exist value map{$_->value()} or trying to access it as a hash value map{$_->{value}} either quoted or not. It seems that the self is not blessed when the columns object is created.

$VAR1 = [
          {
            'type' => 'column',
            'fullorg' => 'a',
            'value' => 'a'
          },
          {
            'fullorg' => 'aa',
            'type' => 'column',
            'value' => 'aa'
          }
        ];
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