Fix deprecated typing aliases to use collections.abc #418
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This PR updates deprecated typing aliases to their modern collections.abc counterparts to follow PEP 585 and avoid future Python 3.14+ issues and beartype warnings.
Changes:
from typing import Iterator, Sequence, Mapping, Iterablewithfrom collections.abc import Iterator, Sequence, Mapping, Iterablein chex/_src modules.Testing:
python -m pip install -e ".[dev]".python -m pyteston Windows / Python 3.14.2. One async checkify test aborted with a JAX runtime error that appears environment-specific; no failures observed that seem related to these type-hint edits.