[{name => 'Zambia', abbr => 'ZA'}, {name => 'Afghanistan', abbr => 'AF'}, {name => 'Andorra', abbr => 'AN'}, ... ]

##</code><code>##

my $aref = [{name => 'Zambia', abbr => 'ZA'}, {name => 'Afghanistan', abbr => 'AF'}, {name => 'Andorra', abbr => 'AN'}];

say $_->{name} for sort { $a->{abbr} cmp $b->{abbr} } @{$aref};'

##</code><code>##

Afghanistan
Andorra
Zambia

##</code><code>##

my $struct = result_of_some_call();
say ref($struct); 

##</code><code>##

use Data::Dumper;
my $result = result_of_some_call();
say Dumper $result;