invoke() — langchain Function Reference

Architecture documentation for the invoke() function in llms.py from the langchain codebase.

Function python LangChainCore LanguageModelBase calls 2 called by 1

Entity Profile

LangChainCore→ LanguageModelBase→ invoke() — langchain Function Reference

Dependency Diagram

graph TD
  ca82d7c2_13eb_a458_db91_e70859a9fdaa["invoke()"]
  ce4aa464_3868_179e_5d99_df48bc307c5f["BaseLLM"]
  ca82d7c2_13eb_a458_db91_e70859a9fdaa -->|defined in| ce4aa464_3868_179e_5d99_df48bc307c5f
  c1366477_d684_c841_c3d0_845479ea9a84["stream()"]
  c1366477_d684_c841_c3d0_845479ea9a84 -->|calls| ca82d7c2_13eb_a458_db91_e70859a9fdaa
  bb2bf093_28c4_0d6f_65af_734ed19d76d4["generate_prompt()"]
  ca82d7c2_13eb_a458_db91_e70859a9fdaa -->|calls| bb2bf093_28c4_0d6f_65af_734ed19d76d4
  38007078_b49e_18a9_9c2b_bb8361fa3fb3["_convert_input()"]
  ca82d7c2_13eb_a458_db91_e70859a9fdaa -->|calls| 38007078_b49e_18a9_9c2b_bb8361fa3fb3
  style ca82d7c2_13eb_a458_db91_e70859a9fdaa fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/language_models/llms.py lines 368–390

    def invoke(
        self,
        input: LanguageModelInput,
        config: RunnableConfig | None = None,
        *,
        stop: list[str] | None = None,
        **kwargs: Any,
    ) -> str:
        config = ensure_config(config)
        return (
            self.generate_prompt(
                [self._convert_input(input)],
                stop=stop,
                callbacks=config.get("callbacks"),
                tags=config.get("tags"),
                metadata=config.get("metadata"),
                run_name=config.get("run_name"),
                run_id=config.pop("run_id", None),
                **kwargs,
            )
            .generations[0][0]
            .text
        )