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  1. or download this
    ( 
    sub{ $abc == 1 },
    sub{ $def == 1 },
    sub{ $xyz == 1 },
)[ $x - 1 ]->();
  2. or download this
    ${{
    1 => sub{ $abc == 1 },
    3 => sub{ $def == 1 },
    5 => sub{ $xyz == 1 },
}}{ $x }->();