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  1. or download this
    my %data;
    $data{"hash1"} = \%hash1;
    ...
    for (sort keys %data) {
      subroutine($_, $data{$_});
    }
    
  2. or download this
    my %data;
    $data{"hash1"} = { key1 => 25, key2 => 19, ... };
    $data{"hash2"} = { key5 => 12, key8 => 'hi', ... };
    $data{"hash3"} = { fred => 'flintstone', barney => 'rubble' };