I left out first line in the example REPL
> my %hash-with-arrays = a => [1,2], b => [3,4], c=>5, d=>[6,[7,8]]
{a => [1 2], b => [3 4], c => 5, d => [6 [7 8]]}
> say gather %hash-with-arrays.values.deepmap: { .take }
(6 7 8 1 2 3 4 5)
> say %hash-with-arrays.values>>[].flat
(6 [7 8] 1 2 3 4 5)
