code: def fetch(self):
          
          os.makedirs(os.path.dirname(self.cached_repo), exist_ok=True)
          if not os.path.exists(self.cached_repo):
              self._log.warning("Index not found, caching %s in %s", self.repo, self.cached_repo)
              git.clone(self.remote_url, self.cached_repo, checkout=True)
          else:
              self._log.debug("Index is cached")
              if self._are_local_and_remote_heads_different():
                  self._log.info("Cached index is not up to date, pulling %s", self. repo)
                  git.pull(self.cached_repo, self.remote_url)
          with open(os.path.join(self.cached_repo, self.INDEX_FILE), encoding="utf-8") as _in:
              self.contents = json.load(_in)
docs: Load from the associated Git repository.