create_tagging_chain_pydantic#

langchain.chains.openai_functions.tagging.create_tagging_chain_pydantic(pydantic_schema: Any, llm: BaseLanguageModel, prompt: ChatPromptTemplate | None = None, **kwargs: Any) → Chain[source]#

Deprecated since version 0.2.13: LangChain has introduced a method called with_structured_output that is available on ChatModels capable of tool calling. See API reference for this function for replacement: <https://api.python.langchain.com/en/latest/chains/langchain.chains.openai_functions.tagging.create_tagging_chain_pydantic.html> You can read more about with_structured_output here: <https://python.langchain.com/v0.2/docs/how_to/structured_output/>. If you notice other issues, please provide feedback here: <langchain-ai/langchain#18154>

Create a chain that extracts information from a passage

based on a pydantic schema.

This function is deprecated. Please use with_structured_output instead. See example usage below:

from langchain_core.pydantic_v1 import BaseModel, Field
from langchain_anthropic import ChatAnthropic

class Joke(BaseModel):
    setup: str = Field(description="The setup of the joke")
    punchline: str = Field(description="The punchline to the joke")

# Or any other chat model that supports tools.
# Please reference to to the documentation of structured_output
# to see an up to date list of which models support
# with_structured_output.
model = ChatAnthropic(model="claude-3-opus-20240229", temperature=0)
structured_llm = model.with_structured_output(Joke)
structured_llm.invoke(
    "Why did the cat cross the road? To get to the other "
    "side... and then lay down in the middle of it!"
)

Parameters:

pydantic_schema (Any) – The pydantic schema of the entities to extract.
llm (BaseLanguageModel) – The language model to use.
prompt (ChatPromptTemplate | None) –
kwargs (Any) –

Returns:

Chain (LLMChain) that can be used to extract information from a passage.

Return type:

Chain