create_kv_docstore() — langchain Function Reference

Architecture documentation for the create_kv_docstore() function in _lc_store.py from the langchain codebase.

Function python LangChainCore ApiManagement

Entity Profile

LangChainCore→ ApiManagement→ create_kv_docstore() — langchain Function Reference

Dependency Diagram

graph TD
  6896bb51_3719_86a4_4161_a27cf2759c97["create_kv_docstore()"]
  b62a282c_e004_7e47_33d5_aaacd87a9220["_lc_store.py"]
  6896bb51_3719_86a4_4161_a27cf2759c97 -->|defined in| b62a282c_e004_7e47_33d5_aaacd87a9220
  style 6896bb51_3719_86a4_4161_a27cf2759c97 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain/langchain_classic/storage/_lc_store.py lines 70–92

def create_kv_docstore(
    store: ByteStore,
    *,
    key_encoder: Callable[[str], str] | None = None,
) -> BaseStore[str, Document]:
    """Create a store for langchain `Document` objects from a bytes store.

    This store does run time type checking to ensure that the values are
    `Document` objects.

    Args:
        store: A bytes store to use as the underlying store.
        key_encoder: A function to encode keys; if `None`, uses identity function.

    Returns:
        A key-value store for `Document` objects.
    """
    return EncoderBackedStore(
        store,
        key_encoder or _identity,
        _dump_document_as_bytes,
        _load_document_from_bytes,
    )