Catmandu::Fix::flatten - flatten a nested array field

       Catmandu::Fix::flatten - flatten a nested array field

       Catmandu::Fix

perl v5.40.0                                       2025-01-17                        Catmandu::Fix::flatten(3pm)

          # {deep => [1, [2, 3], 4, [5, [6, 7]]]}
          flatten(deep)
          # {deep => [1, 2, 3, 4, 5, 6, 7]}