It's a array ref not hash ref, if you get something like HASH(0xbb99fdx), then it's a hash ref. To get the value from the array ref, you need to dereference it, example like

my $test = [ "Hello", "PM" ];
#print $test, you will get array ref

@array_deref = @{$test}; #dereferencing the array ref

print"@array_deref\n";
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