docs: def create_fork(self, repo):
          """
          :calls: `POST /repos/:owner/:repo/forks <http://developer.github.com/v3/repos/forks>`_
          :param repo: :class:`github.Repository.Repository`
          :rtype: :class:`github.Repository.Repository`
          """
          assert isinstance(repo, github.Repository.Repository), repo
          url_parameters = {
              "org": self.login,
          }
          headers, data = self._requester.requestJsonAndCheck(
              "POST",
              "/repos/" + repo.owner.login + "/" + repo.name + "/forks",
              parameters=url_parameters
          )
          return github.Repository.Repository(self._requester, headers, data, completed=True)