_call() — langchain Function Reference

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

Function python LangChainCore ApiManagement

Entity Profile

LangChainCore→ ApiManagement→ _call() — langchain Function Reference

Dependency Diagram

graph TD
  c67d5411_5f94_302a_30e0_f2d760476ea7["_call()"]
  44b18a62_9f79_40e0_f9b2_f3eb9bd8536e["FakeChain"]
  c67d5411_5f94_302a_30e0_f2d760476ea7 -->|defined in| 44b18a62_9f79_40e0_f9b2_f3eb9bd8536e
  style c67d5411_5f94_302a_30e0_f2d760476ea7 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain/tests/unit_tests/chains/test_sequential.py lines 36–45

    def _call(
        self,
        inputs: dict[str, str],
        run_manager: CallbackManagerForChainRun | None = None,
    ) -> dict[str, str]:
        outputs = {}
        for var in self.output_variables:
            variables = [inputs[k] for k in self.input_variables]
            outputs[var] = f"{' '.join(variables)}foo"
        return outputs