r - Opposite of array_tree in purrr package? -


i wondering if there function opposite of array_tree function purrr package.

specifically function (lets call list_untree -better suggestions welcome) following. if a multidimensional array , m vector specifying margins array_tree. 

l <- array_tree(a, margin=m) <- list_untree(l, margin=m)

how can write efficiently if not exist.

for more motivation: particularly interested in doing computations on l using map function , plugging result list_untree function.


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