docs: def _download_repodata(self, checked_repos):
          """Dowload repodata."""
          self._files_downloaded = []
          self._repodata_files = []
          self.__counter = -1
  
          if checked_repos:
              for repo in checked_repos:
                  path = self._repo_url_to_path(repo)
                  self._files_downloaded.append(path)
                  self._repodata_files.append(path)
                  worker = self.download_async(repo, path)
                  worker.url = repo
                  worker.path = path
                  worker.sig_finished.connect(self._repodata_downloaded)
          else:
              # Empty, maybe there is no internet connection
              # Load information from conda-meta and save that file
              path = self._get_repodata_from_meta()
              self._repodata_files = [path]
              self._repodata_downloaded()