on_chat_model_start() — langchain Function Reference

Architecture documentation for the on_chat_model_start() function in chat_models.py from the langchain codebase.

Function python LangChainCore LanguageModelBase

Entity Profile

LangChainCore→ LanguageModelBase→ on_chat_model_start() — langchain Function Reference

Dependency Diagram

graph TD
  d2be06ee_6238_03bd_b802_0d4846c579c2["on_chat_model_start()"]
  212e5aee_8449_326c_9647_f58e4e338d9a["_TestCallbackHandler"]
  d2be06ee_6238_03bd_b802_0d4846c579c2 -->|defined in| 212e5aee_8449_326c_9647_f58e4e338d9a
  style d2be06ee_6238_03bd_b802_0d4846c579c2 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/standard-tests/langchain_tests/integration_tests/chat_models.py lines 85–93

    def on_chat_model_start(
        self,
        serialized: Any,
        messages: Any,
        *,
        options: dict[str, Any] | None = None,
        **kwargs: Any,
    ) -> None:
        self.options.append(options)