$VAR1 = 'do_stuff';
$VAR2 = [
          0,
          'Success',
          {
            'Slot 1' => [
                          'PIC 0',
                          'PIC 1',
                          'PIC 2',
                          'PIC 3'
                        ],
            'Slot 0' => [
                          'PIC 0',
                          'PIC 1',
                          'PIC 2',
                          'PIC 3'
                        ]
          }
        ];