unfold

# given {'3:0'=>4,'3:1'=>5,'3:2'=>6,'7.8'=>8,'7.9'=>9}

$hash->unfold; # {3=>[4,5,6],7,{8,8,9,9}}

The unfold method processes previously folded hash references and returns an unfolded hash reference where the keys, which are paths (using dot-notation where the segments correspond to nested hash keys and array indices), are used to created nested hash and/or array references. This method returns a Data::Object::Hash object.

unfold() : HashObject

method