Is S05 correct?

[Yiyi Hu]

Hmm,
There are sevral appears in S05 which use => instead of -> in a for loop.
So, Is this a typo?
eg:
    for @{$<pairs>} => $pair {
        say "Key: $pair[0]";
        say "Val: $pair[1]";
    }

Thanks,
Xinming