_call() — langchain Function Reference

Architecture documentation for the _call() function in embedding_router.py from the langchain codebase.

Function python AgentOrchestration ClassicChains

Entity Profile

AgentOrchestration→ ClassicChains→ _call() — langchain Function Reference

Dependency Diagram

graph TD
  99c33227_8d8c_86d2_ed9b_a32d7e686fc7["_call()"]
  a9ecc02f_6a92_622a_70dc_826e973e25bd["EmbeddingRouterChain"]
  99c33227_8d8c_86d2_ed9b_a32d7e686fc7 -->|defined in| a9ecc02f_6a92_622a_70dc_826e973e25bd
  style 99c33227_8d8c_86d2_ed9b_a32d7e686fc7 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain/langchain_classic/chains/router/embedding_router.py lines 36–43

    def _call(
        self,
        inputs: dict[str, Any],
        run_manager: CallbackManagerForChainRun | None = None,
    ) -> dict[str, Any]:
        _input = ", ".join([inputs[k] for k in self.routing_keys])
        results = self.vectorstore.similarity_search(_input, k=1)
        return {"next_inputs": inputs, "destination": results[0].metadata["name"]}