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  1. or download this
    #!/usr/bin/perl -w
    use strict;
    ...
    our $foo = "test";
    
    1;
    
  2. or download this
    #!/usr/bin/perl -w
    use strict;
    ...
    use test;
    
    print $test::foo ."\n";
    
  3. or download this
    print $foo