%map = (
  typeA => {key1}[3]{key2},
  typeB => {key3},
  typeC => [1]{key4},
)

##</code><code>##

$lol->{$map{typeA}} <==> $lol->{key1}[3]{key2}
$lol->{$map{typeB}} <==> $lol->{key3}
$lol->{$map{typeB}} <==> $lol->[1]{key4}