FIX methodcaller kwarg support - #551
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Copilot review overview
🟢 Approval recommended
The implementation correctly preserves kwargs, maintains backward compatibility, and includes focused regression coverage.
Review effort: Balanced
Findings: None
What changed in this PR
Adds keyword-argument persistence for operator.methodcaller while preserving protocol-2 compatibility.
Changes:
- Serializes and reconstructs operator keyword arguments.
- Bumps the persistence protocol to 3 and registers the protocol-2 loader.
- Adds round-trip and backward-compatibility tests.
| File | Description |
|---|---|
skops/io/_general.py |
Persists and loads operator kwargs. |
skops/io/_protocol.py |
Bumps protocol to 3. |
skops/io/_persist.py |
Registers the protocol-2 loader. |
skops/io/old/_general_v2.py |
Preserves protocol-2 operator loading. |
skops/io/tests/test_persist.py |
Tests methodcaller round trips. |
skops/io/tests/test_persist_old.py |
Tests protocol-2 compatibility. |
docs/changes.rst |
Documents the fix and protocol bump. |
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methodcallershould supportkwarg, and this PR does that. However, it requires a protocol bump.