shift->%*

#!/usr/bin/env perl
use strict;
use warnings;
use Data::Dumper;

sub p {
    my %args = shift->%*;
    print Dumper \%args;
}

p({ cow => 'jump', over => 'moon' });
[download]

produces

$VAR1 = {
          'cow' => 'jump',
          'over' => 'moon'
        };
[download]