As a Google Cloud client library developer, I would like an easy way of specifying a timeout when making API calls using the requests.AuthorizedSession transport, for example:

transport = AuthorizedSession(...)
transport.request(..., timeout=42)

Motivation:
Sometimes the BigQuery client gets stuck at the transport layer. Having a timeout parameter that can be passed to the transport is necessary for fixing several issue, for example: googleapis/google-cloud-python#9875 (comment)