docs: def make_request(self, image, *features):
          """
          Makes single image request
          :param image: One of file object, path, or URL
          :param features: Recognition features
          :return:
          """
          return {
              "image": {
                  "content": self.image_to_base64(image)
              },
              "features": [{
                               "type": feature.type_,
                               "maxResults": feature.max_results
                           } for feature in features]
          }