In scikit-learn we use array values as dict keys, but trying this with array_api_strict array dtypes fails:

import array_api_strict

labels= array_api_strict.asarray([4, 5, 6])
label_to_index = {entry: idx for idx, entry in enumerate(labels)}

TypeError: unhashable type: 'Array'

Since the dtypes are all numbers or boolean, they are immutable and - I was thinking - also hashable? For numpy and torch arrays they are.

Is this a bug or on purpose for some reason?