code: def get_topics(self):
          
          headers, data = self._requester.requestJsonAndCheck(
              "GET",
              self.url + "/topics",
              headers={'Accept': Consts.mediaTypeTopicsPreview}
          )
          return data['names']
docs: :calls: `GET /repos/:owner/:repo/topics <https://developer.github.com/v3/repos/#list-all-topics-for-a-repository>`_
          :rtype: list of strings