platypush/platypush/backend/google/pubsub/manifest.yaml

manifest:
  events:
    platypush.message.event.google.pubsub.GooglePubsubMessageEvent: when a new message
      is received ona subscribed topic.
  install:
    pip:
    - google-cloud-pubsub
  package: platypush.backend.google.pubsub
  type: backend