how do I assign an array to a hash key

[ToddAndMargo]

Hi All,

I am creating a hash.  One of the keys I want to point to an array,
not a string.
I have created a test:

$ perl6 -e 'my %x = [aaa => "x", b=>@["y","q","r"], c=>"z"]; say %x; for 
@(%x<b>) {say $_};'
{aaa => x, b => [y q r], c => z}
y
q
r

This seems too easy.  I have to have done something wrong.
What did I miss?

-T