docs: def get_milestone(self, number):
          """
          :calls: `GET /repos/:owner/:repo/milestones/:number <http://developer.github.com/v3/issues/milestones>`_
          :param number: integer
          :rtype: :class:`github.Milestone.Milestone`
          """
          assert isinstance(number, (int, long)), number
          headers, data = self._requester.requestJsonAndCheck(
              "GET",
              self.url + "/milestones/" + str(number)
          )
          return github.Milestone.Milestone(self._requester, headers, data, completed=True)