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VAR1="FOO"
VAR2="FEE"
...
export VAR2
export VAR3

#!/usr/bin/perl -w 
use strict;
...
    return @vars;
}

$VAR1 = {
          'VAR1' => 'FOO',
          'VAR2' => 'FEE',
          'VAR3' => 'FUM',