update() — langchain Function Reference

Architecture documentation for the update() function in caches.py from the langchain codebase.

Function python LangChainCore ApiManagement calls 1 called by 2

Entity Profile

LangChainCore→ ApiManagement→ update() — langchain Function Reference

Dependency Diagram

graph TD
  d94616cb_4243_24aa_5cad_1bce1940f0b8["update()"]
  374b7b0c_f4fd_ba00_b93d_1a3cbb3b05cb["BaseCache"]
  d94616cb_4243_24aa_5cad_1bce1940f0b8 -->|defined in| 374b7b0c_f4fd_ba00_b93d_1a3cbb3b05cb
  5d456e9b_8125_c661_378a_257f7a88bcf3["update()"]
  5d456e9b_8125_c661_378a_257f7a88bcf3 -->|calls| d94616cb_4243_24aa_5cad_1bce1940f0b8
  ea890aa7_5e0f_70ac_d2f0_6bc39ac36227["aupdate()"]
  ea890aa7_5e0f_70ac_d2f0_6bc39ac36227 -->|calls| d94616cb_4243_24aa_5cad_1bce1940f0b8
  5d456e9b_8125_c661_378a_257f7a88bcf3["update()"]
  d94616cb_4243_24aa_5cad_1bce1940f0b8 -->|calls| 5d456e9b_8125_c661_378a_257f7a88bcf3
  style d94616cb_4243_24aa_5cad_1bce1940f0b8 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/caches.py lines 73–94

    def update(self, prompt: str, llm_string: str, return_val: RETURN_VAL_TYPE) -> None:
        """Update cache based on `prompt` and `llm_string`.

        The `prompt` and `llm_string` are used to generate a key for the cache. The key
        should match that of the lookup method.

        Args:
            prompt: A string representation of the prompt.

                In the case of a chat model, the prompt is a non-trivial
                serialization of the prompt into the language model.
            llm_string: A string representation of the LLM configuration.

                This is used to capture the invocation parameters of the LLM
                (e.g., model name, temperature, stop tokens, max tokens, etc.).

                These invocation parameters are serialized into a string
                representation.
            return_val: The value to be cached.

                The value is a list of `Generation` (or subclasses).
        """