Asynchronous Pyxis GQL module

[FernandesMF]

(This is the continuation or PR #218)

This commit introduces the asynchronous Pyxis GQL module. It will hopefully allow for a better performance when interfacing with the Pyxis GQL endpoint.

The changes include:

• the pyxis gql async module itself
• unit tests of the module
• a documentation page with usage examples
• updates to the dependencies

Most of the code is reused from the synchronous Pyxis GQL module.

Caching (dogpile)

While trying to use dogpile (which is used by the sync module for caching), I kept running into this error: RuntimeError: cannot reuse already awaited coroutine.
It seems that, unfortunately, dogpile still does not support async functions:
sqlalchemy/dogpile.cache#200
sqlalchemy/dogpile.cache#199

I guess we can try another module for caching the async functions in the future, for example https://github.com/aio-libs/aiocache. I didn't implement caching for now.

Testing

I believe tox is failing due to things ouside the scope of this PR. But all tests passed in my local machine, I swear! xD

I made manual tests for the new module to make sure things are working fine. I didn't include them in the final contribution, though.

Documentation

And here is the zippe documentation again, in case you want to check it out:
docs.zip

Question

• I found that the docstring of PyxisGQL.find_images_by_name_version, in the sync module, is outdated. I fixed it in the async version, do you want me to update the sync version as well?

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Thanks again for your time, and sorry for the big PR! 😁
JIRA: [CWFHEALTH-2039]

[qixiang]

I guess we can try another module for caching the async functions in the future, for example https://github.com/aio-libs/aiocache. I didn't implement caching for now.

It's fine without caching at this moment, please file a jira card for tracking that.

I found that the docstring of PyxisGQL.find_images_by_name_version, in the sync module, is outdated. I fixed it in the async version, do you want me to update the sync version as well?

yes, please open a new PR to fix that.

I believe tox is failing due to things ouside the scope of this PR.

yes, the pyxis branch is having the old tox.ini which uses the deprecated runner, it has been fixed in main branch and we will merge this pyxis branch to main very soon.

[qixiang]

I found that the docstring of PyxisGQL.find_images_by_name_version, in the sync module, is outdated. I fixed it in the async version, do you want me to update the sync version as well?

yes, please open a new PR to fix that.

This is fixed in #220