_collection() — langchain Function Reference

Architecture documentation for the _collection() function in vectorstores.py from the langchain codebase.

Function python CoreAbstractions MessageSchema

Entity Profile

CoreAbstractions→ MessageSchema→ _collection() — langchain Function Reference

Dependency Diagram

graph TD
  13e731c1_dd84_1521_13d7_e6e72dedc9f8["_collection()"]
  d25f9e94_3ec0_b9ca_7d2f_eb7ef487ccab["Chroma"]
  13e731c1_dd84_1521_13d7_e6e72dedc9f8 -->|defined in| d25f9e94_3ec0_b9ca_7d2f_eb7ef487ccab
  style 13e731c1_dd84_1521_13d7_e6e72dedc9f8 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/partners/chroma/langchain_chroma/vectorstores.py lines 432–442

    def _collection(self) -> chromadb.Collection:
        """Returns the underlying Chroma collection or throws an exception."""
        if self._chroma_collection is None:
            msg = (
                "Chroma collection not initialized. "
                "Use `reset_collection` to re-create and initialize the collection. "
            )
            raise ValueError(
                msg,
            )
        return self._chroma_collection