replace individual calls to asyncio.run with global event loop

[pmeier]

This Pull request fixes #93

• I completed the issue numbers (#xx) in the sentence above. The word "fixes" should remain in front of each issue
• My PR is tagged as draft when I'm still working on it, and I remove the draft flag when it is ready for review.
• I added one or several changelog.md entries in the appropriate "in progress" section (not the last release one)

b - My PR fixes some issues:

(Delete this section if not relevant)

• Each issue is well-described, well-labeled, and contains reproducible code examples.

@smarie This PR needs cleanup, but I wanted to get early feedback from you if the overall functionality is what you want.

I think it would make sense to move all the async stuff to a dedicated module or put them into utils. Any opinion here?

[smarie]

Thanks @pmeier for this nice contribution.
The issue description thread looks good and the proposed solution as well.

I think that it would be a good idea, if not too difficult, to have a specific test in your test file reproducing the issue #93 explicitly, so that it can ensure non-regression in the future.

Indeed some utils_asyncio.py module could be a good idea, if enough material is to go there. But don't rush into this, you can also keep using utils.py if the amount of code for async is not too much. I let you decide what is most convenient for you.