* chore: loosen opentelemetry dependencies

* test: fix opentelemetry test skip

* test: fix skipUnless call

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

* feat: add samples for CMEK support

* test: fix backups cleanup

* test: correctly use database id for cmek restore

* test: add clean up for databases

* refactor: remove version time from sample

* refactor: use user-provided key for creating encrypted backup message

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

See googleapis/synthtool#1011

…QueryOptions (#288)

* changes without context

        autosynth cannot find the source of changes triggered by earlier changes in this
        repository, or by version upgrades to tools such as linters.

* chore: update gapic-generator-python to 0.40.11

PiperOrigin-RevId: 359562873

Source-Author: Google APIs <noreply@google.com>
Source-Date: Thu Feb 25 10:52:32 2021 -0800
Source-Repo: googleapis/googleapis
Source-Sha: 07932bb995e7dc91b43620ea8402c6668c7d102c
Source-Link: googleapis/googleapis@07932bb

* feat(spanner): add `optimizer_statistics_package` field in `QueryOptions`

PiperOrigin-RevId: 360758638

Source-Author: Google APIs <noreply@google.com>
Source-Date: Wed Mar 3 14:32:33 2021 -0800
Source-Repo: googleapis/googleapis
Source-Sha: dff6e4625d4ea0a16fc44d3b9be115219c403f07
Source-Link: googleapis/googleapis@dff6e46

* chore: upgrade gapic-generator-python to 0.42.2

PiperOrigin-RevId: 361662015

Source-Author: Google APIs <noreply@google.com>
Source-Date: Mon Mar 8 14:47:18 2021 -0800
Source-Repo: googleapis/googleapis
Source-Sha: 28a591963253d52ce3a25a918cafbdd9928de8cf
Source-Link: googleapis/googleapis@28a5919

* chore: upgrade gapic-generator-python to 0.43.1

PiperOrigin-RevId: 364411656

Source-Author: Google APIs <noreply@google.com>
Source-Date: Mon Mar 22 14:40:22 2021 -0700
Source-Repo: googleapis/googleapis
Source-Sha: 149a3a84c29c9b8189576c7442ccb6dcf6a8f95b
Source-Link: googleapis/googleapis@149a3a8

* feat: add RPC Priority request options

PiperOrigin-RevId: 364449524

Source-Author: Google APIs <noreply@google.com>
Source-Date: Mon Mar 22 17:39:37 2021 -0700
Source-Repo: googleapis/googleapis
Source-Sha: 6598bb829c9e9a534be674649ffd1b4671a821f9
Source-Link: googleapis/googleapis@6598bb8

* feat: add tagging request options

PiperOrigin-RevId: 365498709

Source-Author: Google APIs <noreply@google.com>
Source-Date: Sun Mar 28 20:54:25 2021 -0700
Source-Repo: googleapis/googleapis
Source-Sha: 6ce40ff8faf68226782f507ca6b2d497a77044de
Source-Link: googleapis/googleapis@6ce40ff

* fix: fix dependencies

* chore: revert changes taht break tests

* style: fix lint

Co-authored-by: Bu Sun Kim <busunkim@google.com>
Co-authored-by: larkee <larkee@users.noreply.github.com>

* fix: support INSERT from SELECT clause with args

* the fix itself

* update docstrings

* chore: prevent normalization of semver versioning

* chore: update workaround to make sic work

* feat: updated googleapis proto changes for request tags

* feat: added support for numberic for python decimal value

* feat: added support for numberic for python decimal value

* feat: updated googleapis proto changes for request tags

* feat: added support for numberic for python decimal value

* feat: added support for converting decimal field to numeric field and removed it's conversion to string

* fix: correctly set resume token for restarting streams

* style: fix lint

* docs: update docstring

* test: fix assertion

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

This PR migrates from autosynth to [owl bot](https://github.com/googleapis/repo-automation-bots/tree/master/packages/owl-bot).  owl bot will save time for maintainers as it will automatically open PRs when there are updates in [googleapis-gen](https://github.com/googleapis/googleapis-gen/tree/master/google) without requiring maintainers to run `synthtool` to build the client from protos. Additionally, similar to autosynth, PRs will be automatically opened when there are template updates. With owl bot, on every PR, a post-processor image will run so that we won't have to ask contributors to run [blacken](https://github.com/googleapis/python-spanner/blob/master/synth.py#L88).

* perf: use protobuf for metadata to reduce type conversions

* fix: ensure the metadata return type remains the same

* fix: only wrap non-None metadata pbs

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

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>