langchain Architecture Docs
Home / Function/ compress_documents() — langchain Function Reference

compress_documents() — langchain Function Reference

Architecture documentation for the compress_documents() function in chain_extract.py from the langchain codebase.

Function python LangChainCore Runnables calls 1

Entity Profile

Dependency Diagram

graph TD
  c30de1e5_c8f8_7d2c_ba90_0a2c651a4a79["compress_documents()"]
  d6c70f63_58ba_abd9_fdbd_d94844756192["LLMChainExtractor"]
  c30de1e5_c8f8_7d2c_ba90_0a2c651a4a79 -->|defined in| d6c70f63_58ba_abd9_fdbd_d94844756192
  c90495a0_aae6_38c6_c997_5e8b5e7e15f4["parse()"]
  c30de1e5_c8f8_7d2c_ba90_0a2c651a4a79 -->|calls| c90495a0_aae6_38c6_c997_5e8b5e7e15f4
  style c30de1e5_c8f8_7d2c_ba90_0a2c651a4a79 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain/langchain_classic/retrievers/document_compressors/chain_extract.py lines 68–90

    def compress_documents(
        self,
        documents: Sequence[Document],
        query: str,
        callbacks: Callbacks | None = None,
    ) -> Sequence[Document]:
        """Compress page content of raw documents."""
        compressed_docs = []
        for doc in documents:
            _input = self.get_input(query, doc)
            output_ = self.llm_chain.invoke(_input, config={"callbacks": callbacks})
            if isinstance(self.llm_chain, LLMChain):
                output = output_[self.llm_chain.output_key]
                if self.llm_chain.prompt.output_parser is not None:
                    output = self.llm_chain.prompt.output_parser.parse(output)
            else:
                output = output_
            if len(output) == 0:
                continue
            compressed_docs.append(
                Document(page_content=cast("str", output), metadata=doc.metadata),
            )
        return compressed_docs

Domain

Subdomains

Defined In

Calls

Source

Frequently Asked Questions

What does compress_documents() do?
compress_documents() is a function in the langchain codebase, defined in libs/langchain/langchain_classic/retrievers/document_compressors/chain_extract.py.
Where is compress_documents() defined?
compress_documents() is defined in libs/langchain/langchain_classic/retrievers/document_compressors/chain_extract.py at line 68.
What does compress_documents() call?
compress_documents() calls 1 function(s): parse.

Analyze Your Own Codebase

Get architecture documentation, dependency graphs, and domain analysis for your codebase in minutes.

Try Supermodel Free