How to use the kombu.utils.uuid.uuid function in kombu

def test_on_success__SystemExit(self,
                                    errors=(SystemExit, KeyboardInterrupt)):
        for exc in errors:
            einfo = None
            try:
                raise exc()
            except exc:
                einfo = ExceptionInfo()
            with pytest.raises(exc):
                self.zRequest(id=uuid()).on_success((True, einfo, 1.0))

channel = self.connection.channel()
        mailbox.reply_queue(channel).declare()

        ticket = uuid()
        mailbox._publish_reply({'foo': 'bar'}, exchange, mailbox.oid, ticket)
        _callback_called = [False]

        def callback(body):
            _callback_called[0] = True

        reply = mailbox._collect(ticket, limit=1,
                                 callback=callback, channel=channel)
        assert reply == [{'foo': 'bar'}]
        assert _callback_called[0]

        ticket = uuid()
        mailbox._publish_reply({'biz': 'boz'}, exchange, mailbox.oid, ticket)
        reply = mailbox._collect(ticket, limit=1, channel=channel)
        assert reply == [{'biz': 'boz'}]

        mailbox._publish_reply({'foo': 'BAM'}, exchange, mailbox.oid, 'doom',
                               serializer='pickle')
        with pytest.raises(ContentDisallowed):
            reply = mailbox._collect('doom', limit=1, channel=channel)
        mailbox._publish_reply(
            {'foo': 'BAMBAM'}, exchange, mailbox.oid, 'doom',
            serializer='pickle',
        )
        reply = mailbox._collect('doom', limit=1, channel=channel,
                                 accept=['pickle'])
        assert reply[0]['foo'] == 'BAMBAM'

def test_on_success(self):
        self.zRequest(id=uuid()).on_success((False, 'hey', 3.1222))

def test_trace_task_ret__no_trace(self):
        try:
            delattr(self.mytask, '__trace__')
        except AttributeError:
            pass
        tid = uuid()
        message = self.TaskMessage(self.mytask.name, tid, args=[4])
        _, R, _ = _trace_task_ret(
            self.mytask.name, tid, message.headers,
            message.body, message.content_type,
            message.content_encoding, app=self.app,
        )
        assert R == repr(4 ** 4)

def test_worker_task_trace_handle_failure(self):
        tid = uuid()
        self.mytask.push_request()
        try:
            self.mytask.request.id = tid
            try:
                raise ValueError('foo')
            except Exception as exc:
                w = TraceInfo(states.FAILURE, exc)
                w.handle_failure(
                    self.mytask, self.mytask.request, store_errors=False,
                )
                assert self.mytask.backend.get_status(tid) == states.PENDING
                w.handle_failure(
                    self.mytask, self.mytask.request, store_errors=True,
                )
                assert self.mytask.backend.get_status(tid) == states.FAILURE
        finally:

def _next_delivery_tag(self):
        return uuid()

def freeze(self, _id=None, group_id=None, chord=None,
               root_id=None, parent_id=None):
        # pylint: disable=redefined-outer-name
        #   XXX chord is also a class in outer scope.
        opts = self.options
        try:
            gid = opts['task_id']
        except KeyError:
            gid = opts['task_id'] = group_id or uuid()
        if group_id:
            opts['group_id'] = group_id
        if chord:
            opts['chord'] = chord
        root_id = opts.setdefault('root_id', root_id)
        parent_id = opts.setdefault('parent_id', parent_id)
        new_tasks = []
        # Need to unroll subgroups early so that chord gets the
        # right result instance for chord_unlock etc.
        results = list(self._freeze_unroll(
            new_tasks, group_id, chord, root_id, parent_id,
        ))
        if isinstance(self.tasks, MutableSequence):
            self.tasks[:] = new_tasks
        else:
            self.tasks = new_tasks

def _freeze_gid(self, options):
        # remove task_id and use that as the group_id,
        # if we don't remove it then every task will have the same id...
        options = dict(self.options, **options)
        options['group_id'] = group_id = (
            options.pop('task_id', uuid()))
        return options, group_id, options.get('root_id')

Arguments:
            args (Tuple): positional arguments passed on to the task.
            kwargs (Dict): keyword arguments passed on to the task.
            throw (bool): Re-raise task exceptions.
                Defaults to the :setting:`task_eager_propagates` setting.

        Returns:
            celery.result.EagerResult: pre-evaluated result.
        """
        # trace imports Task, so need to import inline.
        from celery.app.trace import build_tracer

        app = self._get_app()
        args = args or ()
        kwargs = kwargs or {}
        task_id = task_id or uuid()
        retries = retries or 0
        if throw is None:
            throw = app.conf.task_eager_propagates

        # Make sure we get the task instance, not class.
        task = app._tasks[self.name]

        request = {
            'id': task_id,
            'retries': retries,
            'is_eager': True,
            'logfile': logfile,
            'loglevel': loglevel or 0,
            'hostname': gethostname(),
            'callbacks': maybe_list(link),
            'errbacks': maybe_list(link_error),