def exists(self, client=None):
        """API call:  test for the existence of the taskqueue via a GET request

        See
        https://cloud.google.com/appengine/docs/python/taskqueue/rest/taskqueues/get

        :type client: :class:`taskqueue.client.Client` or ``NoneType``
        :param client: the client to use.  If not passed, falls back to the
                       ``client`` stored on the current taskqueue.
        """
        client = self._require_client(client)
        try:
            response = client.connection.api_request(method='GET', path=self.path)
        except NotFound:
            return False
        else:
            # projectname gets prefixed, this retrieves correct path with prefixed project name
            # see https://code.google.com/p/googleappengine/issues/detail?id=10199
            if os.path.split(response.get("id"))[-1] == self.id:
                self.full_name = response.get("id")
                return True
            else:
                return False