Run 25476246731 surfaced two missing deps that Repo tests (CPU) does not
need (because it --ignores tests/saving and tests/utils, the directories
that pull these in):
- google.protobuf (via `from transformers.utils import sentencepiece_model_pb2`
in tests/saving/test_fix_sentencepiece_gguf_robustness.py:7). Not in
transformers' base install. Adding `protobuf` + `sentencepiece` for
completeness.
- triton (via unsloth/_gpu_init.py:232's unconditional `import triton`).
The triton PyPI wheel installs cleanly on Linux x86_64 without CUDA;
the import is what unsloth needs, no GPU work runs.
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