docs: def _parse(self, data):
          """Parse API response.
  
          :param dict data: Parsed JSON response from API 'data' key.
  
          :return: Image instances.
          :rtype: list.
          """
          super(Album, self)._parse(data)
          self.cover_id = data['cover']
          images = [Image(i['id'], i) for i in data['images']]
          self.image_ids[:] = [i.imgur_id for i in images]
          return images