* test: deflake system test

* lint

Co-authored-by: Astha Mohta <35952883+asthamohta@users.noreply.github.com>

* feat: Inline Begin transction for RW transactions

* ILB with lock for execute update and batch update

* Added lock for execute sql and read method

* fix: lint fix and testcases

* fix: lint

* fix: Set transction id along with resume token

* fix: lint

* fix: test cases

* fix: few more test case for restart on unavailable

* test: Batch update error test case

* fix: lint

* fix: Code review comments

* fix: test cases + lint

* fix: code review comments

* fix: deprecate transactionpingingpool msg

* fix: review comments

Co-authored-by: larkee <31196561+larkee@users.noreply.github.com>

* fix: Apply suggestions from code review

Co-authored-by: larkee <31196561+larkee@users.noreply.github.com>

* fix: review comments

* fix: review comment Update tests/unit/test_session.py

Co-authored-by: larkee <31196561+larkee@users.noreply.github.com>

Co-authored-by: larkee <31196561+larkee@users.noreply.github.com>

…cp/templates/python_library/.kokoro (#861)

Source-Link: googleapis/synthtool@b4fe62e
Post-Processor: gcr.io/cloud-devrel-public-resources/owlbot-python:latest@sha256:3bf87e47c2173d7eed42714589dc4da2c07c3268610f1e47f8e1a30decbfc7f1

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>
Co-authored-by: Anthonios Partheniou <partheniou@google.com>

)

* feat:fgac changes and samples

* linting

* fixing samples

* linting

* linting

* Update database.py

* Update pool.py

* Update snippets.py

* fixing pools

* fixing tests

* changes

🤖 I have created a release *beep* *boop*
---


## [3.26.0](https://togithub.com/googleapis/python-spanner/compare/v3.25.0...v3.26.0) (2022-12-15)


### Features

* Inline Begin transction for RW transactions ([#840](https://togithub.com/googleapis/python-spanner/issues/840)) ([c2456be](https://togithub.com/googleapis/python-spanner/commit/c2456bed513dc4ab8954e5227605fca12e776b63))


### Bug Fixes

* Fix for binding of pinging and bursty pool with database role ([#871](https://togithub.com/googleapis/python-spanner/issues/871)) ([89da17e](https://togithub.com/googleapis/python-spanner/commit/89da17efccdf4f686f73f87f997128a96c614839))

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This PR was generated with [Release Please](https://togithub.com/googleapis/release-please). See [documentation](https://togithub.com/googleapis/release-please#release-please).