I am using:
my $queue = RT::Client::REST::Queue->new(
rt => $rt,
id => $queue_id,
)->retrieve();
my @customfields = $queue->cf();
See also https://metacpan.org/pod/RT::Client::REST::Object
(Queue extends Object)
Fri Jul 13 10:43:37 2018The RT System itself - Status changed from 'new' to 'open'
Thu Nov 08 18:02:10 2018dean [...] fragfest.com.au - Correspondence added
Added an example in the pod via commit a89e19b35c71c60840d5bfb65324eae317020ec5
Thu Nov 08 18:02:13 2018dean [...] fragfest.com.au - Status changed from 'open' to 'resolved'
Thu Nov 08 18:02:13 2018dean [...] fragfest.com.au - Taken