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WIP: fix(huggingface): add Pydantic structured output support (Issue #32197) #33141

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WIP: fix(huggingface): add Pydantic structured output support (Issue #32197) #33141

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15 changes: 11 additions & 4 deletions libs/partners/huggingface/langchain_huggingface/chat_models/huggingface.py
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Original file line number Diff line number Diff line change
Expand Up @@ -39,7 +39,7 @@
)
from langchain_core.messages.tool import ToolCallChunk
from langchain_core.messages.tool import tool_call_chunk as create_tool_call_chunk
from langchain_core.output_parsers import JsonOutputParser
from langchain_core.output_parsers import JsonOutputParser, PydanticOutputParser
from langchain_core.output_parsers.openai_tools import (
JsonOutputKeyToolsParser,
make_invalid_tool_call,
Expand Down Expand Up @@ -966,9 +966,16 @@ def with_structured_output(
"schema": schema,
},
)
output_parser: Union[ # type: ignore[no-redef]
JsonOutputKeyToolsParser, JsonOutputParser
] = JsonOutputParser() # type: ignore[arg-type]

if is_pydantic_schema:
output_parser: Union[ # type: ignore[no-redef]
JsonOutputKeyToolsParser, JsonOutputParser, PydanticOutputParser
] = JsonOutputParser() # type: ignore[arg-type]
else:
output_parser = JsonOutputParser()



elif method == "json_mode":
llm = self.bind(
response_format={"type": "json_object"},
Expand Down
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