code: def sort_basis(basis, use_copy=True):
      if use_copy:
          basis = copy.deepcopy(basis)
      for k, el in basis['elements'].items():
          if 'electron_shells' in el:
              el['electron_shells'] = sort_shells(el['electron_shells'], False)
          if 'ecp_potentials' in el:
              el['ecp_potentials'] = sort_potentials(el['ecp_potentials'], False)
      return sort_basis_dict(basis)