I'm using google-cloud=0.27.0 currently and now trying to use latest google-cloud-pubsub=0.28.4

But its break with current psq implementation. Any workaround so psq can work with latest pubsub?

Code snippet for existing implementation (works):

client = pubsub.Client(project=current_app.config['PROJECT_ID'])
psq.Queue(client, 'feed_queue', extra_context=current_app.app_context)

New implementation (breaks):

client = pubsub.SubscriberClient()
psq.Queue(client, 'feed_queue', extra_context=current_app.app_context)
(Error msg: AttributeError: 'Client' object has no attribute 'topic')

Thanks