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  1. or download this
    BEGIN {
        my  $foo = 'foom';
        use lib $foo;
    }
    
  2. or download this
        my  $foo;
    BEGIN {  $foo = 'foom'; }
        use lib $foo;
        printf "executing:  '%s'\n", join("', '", @INC );
    
  3. or download this
    BEGIN {  our $foo = 'foom';  }
        use lib $foo;