API mismatch between mapping and implementations

[d-v-b]

the delitems method in FSMap expects the underlying filesystem to have an rm method that accepts a list of strings. However, this behavior of FSMap appears to be untested, and if tested would certainly fail for at least LocalFileSystem.rm, which accepts only a single string as input. Would a PR changing the behavior of LocalFileSystem.rm + adding tests be welcome? This would help move this Zarr PR forward: zarr-developers/zarr-python#738 (comment)

[martindurant]

Would a PR changing the behavior of LocalFileSystem.rm + adding tests be welcome?

Yes please!