def set_repo_permission(self, repo, permission):
        """
        :calls: `PUT /teams/:id/repos/:org/:repo <http://developer.github.com/v3/orgs/teams>`_
        :param repo: :class:`github.Repository.Repository`
        :param permission: string
        :rtype: None
        """
        assert isinstance(repo, github.Repository.Repository), repo
        put_parameters = {
            "permission": permission,
        }
        headers, data = self._requester.requestJsonAndCheck(
            "PUT",
            self.url + "/repos/" + repo._identity,
            input=put_parameters
        )