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input_keys() — langchain Function Reference

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

Entity Profile

Dependency Diagram

graph TD
  ca68184b_585d_32c0_72a1_a03f49e51e5b["input_keys()"]
  a9ecc02f_6a92_622a_70dc_826e973e25bd["EmbeddingRouterChain"]
  ca68184b_585d_32c0_72a1_a03f49e51e5b -->|defined in| a9ecc02f_6a92_622a_70dc_826e973e25bd
  style ca68184b_585d_32c0_72a1_a03f49e51e5b fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain/langchain_classic/chains/router/embedding_router.py lines 31–33

    def input_keys(self) -> list[str]:
        """Will be whatever keys the LLM chain prompt expects."""
        return self.routing_keys

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Frequently Asked Questions

What does input_keys() do?
input_keys() is a function in the langchain codebase, defined in libs/langchain/langchain_classic/chains/router/embedding_router.py.
Where is input_keys() defined?
input_keys() is defined in libs/langchain/langchain_classic/chains/router/embedding_router.py at line 31.

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