[ 35, 30, 25, 20, 15, 10 ],
'... got the correct chained value');
+is_deeply(
+$a->keys,
+[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 ],
+'... the keys');
+
+is_deeply(
+$a->values,
+[ 15, 20, 30, 10, 2, 6, 78, 101, 2, 10, 15, 20, 30 ],
+'... the values');
+
+is_deeply(
+$a->kv,
+[ [0, 15], [1, 20], [2, 30], [3, 10], [4, 2], [5, 6], [6, 78],
+ [7, 101], [8, 2], [9, 10], [10, 15], [11, 20], [12, 30] ],
+'... [ k, v ]');
+
+is([1, 2, 3, 4, 5]->reduce(sub { $_[0] + $_[1] }), 15, '... got the right reduction');
+
+is_deeply(
+ [1, 2, 3, 4, 5]->zip([ 5, 4, 3, 2, 1 ]),
+ [ [1, 5], [2, 4], [3, 3], [4, 2], [5, 1] ],
+ '... got the right zip');
+
+
# Hash
my $h = { one => 1, two => 2, three => 3 };
ok($h->defined, '... got the right defined value');
+is_deeply(
+$h->keys->sort,
+[ qw/one three two/ ],
+'... the keys');
+
+is_deeply(
+$h->values->sort,
+[ 1, 2, 3 ],
+'... the values');
+ok($h->exists('two'), '... exists works');
+ok(!$h->exists('five'), '... !exists works');