code: def decode_unicode_obj(obj):
      
      if isinstance(obj, dict):
          r = {}
          for k, v in iteritems(obj):
              r[decode_unicode_string(k)] = decode_unicode_obj(v)
          return r
      elif isinstance(obj, six.string_types):
          return decode_unicode_string(obj)
      elif isinstance(obj, (list, tuple)):
          return [decode_unicode_obj(x) for x in obj]
      else:
          return obj
docs: Decode unicoded dict/list/tuple encoded by `unicode_obj`