langchain.retrievers.document_compressors.chain_filter.LLMChainFilter¶
class langchain.retrievers.document_compressors.chain_filter.LLMChainFilter[source]¶
Bases: BaseDocumentCompressor
Filter that drops documents that aren’t relevant to the query.
Create a new model by parsing and validating input data from keyword arguments.
Raises ValidationError if the input data cannot be parsed to form a valid model.
param get_input: Callable[[str, langchain.schema.document.Document], dict] = <function default_get_input>¶
Callable for constructing the chain input from the query and a Document.
param llm_chain: langchain.chains.llm.LLMChain [Required]¶
LLM wrapper to use for filtering documents.
The chain prompt is expected to have a BooleanOutputParser.
async acompress_documents(documents: Sequence[Document], query: str, callbacks: Optional[Union[List[BaseCallbackHandler], BaseCallbackManager]] = None) → Sequence[Document][source]¶
Filter down documents.
compress_documents(documents: Sequence[Document], query: str, callbacks: Optional[Union[List[BaseCallbackHandler], BaseCallbackManager]] = None) → Sequence[Document][source]¶
Filter down documents based on their relevance to the query.
classmethod construct(_fields_set: Optional[SetStr] = None, **values: Any) → Model¶
Creates a new model setting __dict__ and __fields_set__ from trusted or pre-validated data.
Default values are respected, but no other validation is performed.
Behaves as if Config.extra = ‘allow’ was set since it adds all passed values