transform() — langchain Function Reference

Architecture documentation for the transform() function in base.py from the langchain codebase.

Function python LangChainCore Runnables calls 1 called by 2

Entity Profile

LangChainCore→ Runnables→ transform() — langchain Function Reference

Dependency Diagram

graph TD
  f619bab3_d5a5_2218_b91d_c55d57073715["transform()"]
  c4bf8d59_69f9_f8e5_efba_837c20df2360["RunnableSequence"]
  f619bab3_d5a5_2218_b91d_c55d57073715 -->|defined in| c4bf8d59_69f9_f8e5_efba_837c20df2360
  46c65f5f_c86a_f3da_aae3_1eb4fbec5cf8["stream()"]
  46c65f5f_c86a_f3da_aae3_1eb4fbec5cf8 -->|calls| f619bab3_d5a5_2218_b91d_c55d57073715
  ec8ef184_f283_14ce_8075_7b1a5a02aeee["transform()"]
  ec8ef184_f283_14ce_8075_7b1a5a02aeee -->|calls| f619bab3_d5a5_2218_b91d_c55d57073715
  3b190320_b896_da9c_12ee_4d17ddfcf59e["_transform_stream_with_config()"]
  f619bab3_d5a5_2218_b91d_c55d57073715 -->|calls| 3b190320_b896_da9c_12ee_4d17ddfcf59e
  style f619bab3_d5a5_2218_b91d_c55d57073715 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/runnables/base.py lines 3514–3525

    def transform(
        self,
        input: Iterator[Input],
        config: RunnableConfig | None = None,
        **kwargs: Any | None,
    ) -> Iterator[Output]:
        yield from self._transform_stream_with_config(
            input,
            self._transform,
            patch_config(config, run_name=(config or {}).get("run_name") or self.name),
            **kwargs,
        )