This being perl there are lots of ways you could do it. It's going to depend on exactly your data structure and personal preference.

You could use Data::Dump, so :-

use Data::Dump qw(dump);
     
    $str = dump(@list);
    ....
    @copy_of_list = eval $str;
[download]

But, I prefer to use JSON as the output is human readable, and I can easily edit it.