docs: def _deserialize_dict(data, boxed_type):
      """Deserializes a dict and its elements.
  
      :param data: dict to deserialize.
      :type data: dict
      :param boxed_type: class literal.
  
      :return: deserialized dict.
      :rtype: dict
      """
      return {k: _deserialize(v, boxed_type)
              for k, v in six.iteritems(data)}