Thank you for opening a Pull Request! Before submitting your PR, there are a few things you can do to make sure it goes smoothly:
- [ ] Make sure to open an issue as a [bug/issue](https://github.com/googleapis/python-storage/issues/new/choose) before writing your code!  That way we can discuss the change, evaluate designs, and agree on the general idea
- [ ] Ensure the tests and linter pass
- [ ] Code coverage does not decrease (if any source code was changed)
- [ ] Appropriate docs were updated (if necessary)

Fixes #<issue_number_goes_here> 🦕

* add s4 never idempotent methods to json schema

* add project based method test cases

* add hmacKey.update method test case

* add ACL methods test cases

* add instruction cases and update test names

* fix typo

* use subprocess to pull and run testbench docker image

* remove env var check. testbench default host is set and launched in the conf tests

…nss (#586)

* add preconditions and retry config support to ACL patch operations

* update existing unit tests

* add unit tests

* add preconditions and retry config to bucket make public/private

* add preconditions and retry config to blob make public/private

* update docstrings

* add system tests acl with metegeneration match

* revise to use permitted group email

* fix: pin six as a required dependency

* chore: pin protobuf for older Python 2.7

* update acl patch methods with preconditions

* address comments

Co-authored-by: Tres Seaver <[email protected]>

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