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fix(config): annotate PreTrainedConfig.dtype as Any to fix pydantic schema generation (#45070) #45129

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fix(config): annotate PreTrainedConfig.dtype as Any to fix pydantic schema generation (#45070) #45129

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6 changes: 5 additions & 1 deletion src/transformers/configuration_utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -224,7 +224,11 @@ class PreTrainedConfig(PushToHubMixin, RotaryEmbeddingConfigMixin):
# Common attributes for all models
output_hidden_states: bool | None = False
return_dict: bool | None = True
dtype: Union[str, "torch.dtype"] | None = None
# NOTE: annotated as Any (rather than Union[str, "torch.dtype"] | None) so that pydantic can
# build a schema for classes that include PreTrainedConfig as a field without needing torch
# in the resolution namespace. The runtime type is still Union[str, torch.dtype] | None.
# See https://github.com/huggingface/transformers/issues/45070
dtype: Any = None
chunk_size_feed_forward: int = 0
is_encoder_decoder: bool = False

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