* fix: add request timeout for MDS requests

* add seconds

* chore: refactor BigQueryStorageVersions

* address comments in #1680

* add unit test

Earlier the last chunk was being flushed while calling the close()
method. Now it will be done inside the append method itself.

PR created by the Librarian CLI to initialize a release. Merging this PR
will auto trigger a release.

Librarian Version: v0.7.0
Language Image:
us-central1-docker.pkg.dev/cloud-sdk-librarian-prod/images-prod/python-librarian-generator@sha256:8e2c32496077054105bd06c54a59d6a6694287bc053588e24debe6da6920ad91
<details><summary>google-cloud-storage: 3.8.0</summary>

##
[3.8.0](googleapis/python-storage@v3.7.0...v3.8.0)
(2026-01-13)

### Features

* expose persisted size in mrd (#1671)
([0e2961be](googleapis/python-storage@0e2961be))

* implement &#34;append_from_file&#34; (#1686)
([1333c956](googleapis/python-storage@1333c956))

* compute chunk wise checksum for bidi_writes (#1675)
([139390cb](googleapis/python-storage@139390cb))

* flush the last chunk in append method (#1699)
([89bfe7a5](googleapis/python-storage@89bfe7a5))

* add write resumption strategy (#1663)
([a57ea0ec](googleapis/python-storage@a57ea0ec))

* add bidi stream retry manager. (#1632)
([d90f0ee0](googleapis/python-storage@d90f0ee0))

* make flush size configurable (#1677)
([f7095faf](googleapis/python-storage@f7095faf))

### Bug Fixes

* no state lookup while opening bidi-write stream
([2d5a7b16](googleapis/python-storage@2d5a7b16))

* no state lookup while opening bidi-write stream (#1636)
([2d5a7b16](googleapis/python-storage@2d5a7b16))

* close write object stream always (#1661)
([4a609a4b](googleapis/python-storage@4a609a4b))

* add system test for opening with read_handle (#1672)
([6dc711da](googleapis/python-storage@6dc711da))

</details>

---------

Co-authored-by: Victor Chudnovsky <vchudnov@google.com>

This change improves the code snippet in https://cloud.google.com/bigquery/docs/explore-data-colab#explore_the_data