code: def _structure_list(self, obj, cl):
          
          if is_bare(cl) or cl.__args__[0] is Any:
              return [e for e in obj]
          else:
              elem_type = cl.__args__[0]
              return [
                  self._structure_func.dispatch(elem_type)(e, elem_type)
                  for e in obj
              ]
docs: Convert an iterable to a potentially generic list.