code: def _inplace_sort_by_id(unsorted_list):
      
      if not isinstance(unsorted_list, list):
          return
      sorted_list = [(i.get('@id'), i) for i in unsorted_list]
      sorted_list.sort()
      del unsorted_list[:]
      unsorted_list.extend([i[1] for i in sorted_list])
docs: Takes a list of dicts each of which has an '@id' key,
      sorts the elements in the list by the value of the @id key.
      Assumes that @id is unique or the dicts have a meaningul < operator