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  1. or download this
    c:\@Work\Perl\monks>perl -wMstrict -MData::Dump=pp -le
    "sub S { print qq{in S: args }, pp \@_; }
    ...
    Prototype mismatch: sub main::S: none vs () at -e line 1.
    in S: args ["foo", "bar"]
    outside S: $x == foo,  $y == bar