[v3]: Add Store method for getting the size of an item. #2420
Description
Zarr version
v3
Numcodecs version
n/a
Python Version
n/a
Operating System
n/a
Installation
n/a
Description
In #2400, we need a method for getting the size of some object from a Store to support .info. The cleanest way to do this is a new method in the Store API.
We could implement an inefficient version that basically does
def size(self, key: str) -> int:
return len(await self.get(key))Many backends will have more efficient methods for getting the size of a file / object without actually reading it.
Steps to reproduce
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Additional output
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