This is intentional but I don't remember all the details. It has to do with how Python does abstract methods for async generators IIRC. If there is a better solution, I'd be happy to see one come forward though.

I'm afraid I don't have much experience with async methods, so I cannot help much.

It's just that:

• I've seen abstract base classes add async to the method definition - and perhaps add an empty yield so that linters are happy. See for example How to properly type class abstract async methods and override them in child classes microsoft/pyright#4741.
• Some linters complain about the current situation:
  https://app.deepsource.com/gh/DimitriPapadopoulos/zarr-python/issue/PYL-W0236/occurrences

I could start a PR where I try to add async to the abstract base class methods, so we can see what happens. How does it sound?

Go for it @DimitriPapadopoulos!