Octue

Summary
Improve code quality control by adding docstring linting and PEP8 naming checks to `pre-commit` hooks.

<!--- SKIP AUTOGENERATED NOTES --->
Contents ([282](https://github.com/octue/octue-sdk-python/pull/282))

Operations
- Add `pep8-naming` `flake8` extension to pre-commit hooks
- Add `pydocstyle` pre-commit hook
- Add style branch prefix
- Only exclude .git directory from pre-commit hooks
- Enforce PEP8 naming throughout repository
- Apply the new docstring linter throughout repository

Refactoring
- Remove unused test method
<!--- END AUTOGENERATED NOTES --->

Summary
Add the ability for parents to monitor the progress of their children's analyses.

<!--- SKIP AUTOGENERATED NOTES --->
Contents (281)

New features
- Add ability to validate (against the schema in `twine.json`) and send monitoring updates from a child to its parent
- Allow parents to provide a callback function that handles monitoring updates for e.g. plotting or other visualisation

Fixes
- Log receipt of questions in Google Cloud Run

Operations
- Use latest conventional commits pre-commit hook

Refactoring
- Rename `Service.parse_question` to `Service._parse_question`
- Rename `Service.send_delivery_acknowledgement_to_asker` to `Service._send_delivery_acknowledgement`

<!--- STOP AUTOGENERATED NOTES --->

Quality Checklist
- [x] New features are fully tested (No matter how much Coverage Karma you have)
- [ ] [v0.2 onward] New features are included in the documentation

Summary
Stop recurrent redelivery and costly reprocessing of questions on Google Cloud Run via Pub/Sub.

Note: Child services must be updated to this version of `octue-sdk-python` to work with parents of this version or above. Parents do not need to be updated to this version to ask questions to children updated to this version.

<!--- SKIP AUTOGENERATED NOTES --->

Contents ([279](https://github.com/octue/octue-sdk-python/pull/279))
**IMPORTANT:** There is 1 breaking change.

Enhancements
- Make children acknowledge the delivery of questions from their parents
- **BREAKING CHANGE:** Make parents retry question delivery if initial delivery is not acknowledged

Fixes
- Prevent recurrent redelivery of Pub/Sub messages to Cloud Run services
- Use single instance of answer topic in Cloud Run to avoid potential missing messages from the child to the parent

Refactoring
- Move message pulling into `OrderedMessageHandler`
- Move `OrderedMessageHandler` into its own module

<!--- END AUTOGENERATED NOTES --->

<!--- START AUTOGENERATED NOTES --->
Contents ([278](https://github.com/octue/octue-sdk-python/pull/278))

Enhancements
- Allow getting of Google Cloud credentials as a dictionary
<!--- END AUTOGENERATED NOTES --->

Summary
Stop high number of retries of publishing answers from child when the parent has timed out.

<!--- SKIP AUTOGENERATED NOTES --->
Contents ([277](https://github.com/octue/octue-sdk-python/pull/277))

Enhancements
- Make subscription retry policy exponential and allow customisation

Fixes
- Stop deleting question topic when stopping waiting for answer

<!--- END AUTOGENERATED NOTES --->

<!--- SKIP AUTOGENERATED NOTES --->
Contents ([276](https://github.com/octue/octue-sdk-python/pull/276))

Fixes
- Retry topic existence check if it initially fails by adding timeout parameter

<!--- END AUTOGENERATED NOTES --->