chore: release 2.2.0 (#497)
chore: release 2.2.0 (#497)

:robot: I have created a release \*beep\* \*boop\* 
---
## [2.2.0](https://www.github.com/googleapis/nodejs-tasks/compare/v2.1.3...v2.2.0) (2021-01-09)


### Features

* introduces style enumeration ([#496](https://www.github.com/googleapis/nodejs-tasks/issues/496)) ([680f1dc](https://www.github.com/googleapis/nodejs-tasks/commit/680f1dcd269d25247a54157108c524f8946dc624))


### Bug Fixes

* **samples:** remove unused variables ([#492](https://www.github.com/googleapis/nodejs-tasks/issues/492)) ([81c4b4e](https://www.github.com/googleapis/nodejs-tasks/commit/81c4b4ece21eb99cec582d3256192de6c402d771))
---


This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please).
GoogleCloudPlatform/nodejs-docs-samples,GoogleCloudPlatform/nodejs-docs-samples,GoogleCloudPlatform/nodejs-docs-samples,GoogleCloudPlatform/nodejs-docs-samples