def get_key(self, id):
        """
        :calls: `GET /user/keys/:id <http://developer.github.com/v3/users/keys>`_
        :param id: integer
        :rtype: :class:`github.UserKey.UserKey`
        """
        assert isinstance(id, (int, long)), id
        headers, data = self._requester.requestJsonAndCheck(
            "GET",
            "/user/keys/" + str(id)
        )
        return github.UserKey.UserKey(self._requester, headers, data, completed=True)