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
  5d456e9b_8125_c661_378a_257f7a88bcf3["update()"]
  4d0ff6e4_41b7_2651_42a4_d1f2735b32e1["InMemoryCache"]
  5d456e9b_8125_c661_378a_257f7a88bcf3 -->|defined in| 4d0ff6e4_41b7_2651_42a4_d1f2735b32e1
  d94616cb_4243_24aa_5cad_1bce1940f0b8["update()"]
  d94616cb_4243_24aa_5cad_1bce1940f0b8 -->|calls| 5d456e9b_8125_c661_378a_257f7a88bcf3
  ea890aa7_5e0f_70ac_d2f0_6bc39ac36227["aupdate()"]
  ea890aa7_5e0f_70ac_d2f0_6bc39ac36227 -->|calls| 5d456e9b_8125_c661_378a_257f7a88bcf3
  d94616cb_4243_24aa_5cad_1bce1940f0b8["update()"]
  5d456e9b_8125_c661_378a_257f7a88bcf3 -->|calls| d94616cb_4243_24aa_5cad_1bce1940f0b8
  style 5d456e9b_8125_c661_378a_257f7a88bcf3 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/caches.py lines 216–231

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

        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.
            return_val: The value to be cached.

                The value is a list of `Generation` (or subclasses).
        """
        if self._maxsize is not None and len(self._cache) == self._maxsize:
            del self._cache[next(iter(self._cache))]
        self._cache[prompt, llm_string] = return_val