Repository: huggingface/transformers
Pull request: Fix config dtype parsing for Emu3 edge case

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Fixes https://github.com/vllm-project/vllm/pull/24447#issuecomment-3268847418
- "dtype" is one of token in `Emu3Config`'s `vocabulary_map`, so current config `dtype` parsing logic can run into issue for vocab_map `{'dtype': 47727}`.
- This PR makes the dtype parsing logic more robust.

**Reproduction code**
```python3
from transformers import AutoConfig

config = AutoConfig.from_pretrained("BAAI/Emu3-Chat-hf")
print(config)
```


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Changed files:
filename: src/transformers/configuration_utils.py
patch: @@ -1058,7 +1058,9 @@ def dict_dtype_to_str(self, d: dict[str, Any]) -> None:
         if d.get("dtype") is not None:
             if isinstance(d["dtype"], dict):
                 d["dtype"] = {k: str(v).split(".")[-1] for k, v in d["dtype"].items()}
-            elif not isinstance(d["dtype"], str):
+            # models like Emu3 can have "dtype" as token in config's vocabulary map,
+            # so we also exclude int type here to avoid error in this special case.
+            elif not isinstance(d["dtype"], (str, int)):
                 d["dtype"] = str(d["dtype"]).split(".")[1]
         for value in d.values():
             if isinstance(value, dict):