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sub blah {
    my %args = @_;
    ...
}

blah(qw(continue 0 next 1 redo 2 last 3));
blah('continue', 0, 'next', 1, 'redo', 2, 'last', 3);
...

my %h = (continue => 0, next => 1, redo => 2, last => 3);
blah(%h);