code: def has_in_watched(self, watched):
          
          assert isinstance(watched, github.Repository.Repository), watched
          status, headers, data = self._requester.requestJson(
              "GET",
              "/repos/" + watched._identity + "/subscription"
          )
          return status == 200
docs: :calls: `GET /repos/:owner/:repo/subscription <http://developer.github.com/v3/activity/watching>`_
          :param watched: :class:`github.Repository.Repository`
          :rtype: bool