Google Cloud Pub/Sub Client Library

The `google-cloud-pubsub` Python client library provides a fully-managed, real-time messaging service for Google Cloud Pub/Sub. It facilitates asynchronous communication, decoupling services that produce messages from those that consume them, offering 'at least once' delivery, low latency, and on-demand scalability. The library is actively maintained with frequent, often weekly, releases for bug fixes and minor features within the broader `google-cloud-python` monorepo.