on_llm_start() — langchain Function Reference

Architecture documentation for the on_llm_start() function in test_async_callback_manager.py from the langchain codebase.

Function python LangChainCore ApiManagement calls 1 called by 1

Entity Profile

LangChainCore→ ApiManagement→ on_llm_start() — langchain Function Reference

Dependency Diagram

graph TD
  fdcaaad0_e09a_41dc_1031_f54f3bb1a8a7["on_llm_start()"]
  da945e6d_2d8b_640e_5b6c_6ea1e0cdc9d9["CustomHandler"]
  fdcaaad0_e09a_41dc_1031_f54f3bb1a8a7 -->|defined in| da945e6d_2d8b_640e_5b6c_6ea1e0cdc9d9
  2916e273_7429_5c51_38d6_6936f07ce55b["on_llm_start()"]
  2916e273_7429_5c51_38d6_6936f07ce55b -->|calls| fdcaaad0_e09a_41dc_1031_f54f3bb1a8a7
  2916e273_7429_5c51_38d6_6936f07ce55b["on_llm_start()"]
  fdcaaad0_e09a_41dc_1031_f54f3bb1a8a7 -->|calls| 2916e273_7429_5c51_38d6_6936f07ce55b
  style fdcaaad0_e09a_41dc_1031_f54f3bb1a8a7 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/tests/unit_tests/callbacks/test_async_callback_manager.py lines 51–53

        async def on_llm_start(self, *args: Any, **kwargs: Any) -> None:
            """Update the callstack with the name of the callback."""
            some_var.set("on_llm_start")