AsyncOnlyMiddleware Class — langchain Architecture

Architecture documentation for the AsyncOnlyMiddleware class in test_framework.py from the langchain codebase.

Class python

Entity Profile

Dependency Diagram

graph TD
  3bba53d6_a162_22a9_9648_5f62eeb0d2fc["AsyncOnlyMiddleware"]
  949c7cf4_56fe_f3b4_cd89_9631a7e9cb1e["AgentMiddleware"]
  3bba53d6_a162_22a9_9648_5f62eeb0d2fc -->|extends| 949c7cf4_56fe_f3b4_cd89_9631a7e9cb1e
  8310d669_2524_e019_e333_8473b50a4990["test_framework.py"]
  3bba53d6_a162_22a9_9648_5f62eeb0d2fc -->|defined in| 8310d669_2524_e019_e333_8473b50a4990
  8c235727_8567_e1cd_5403_61b47aac135c["awrap_model_call()"]
  3bba53d6_a162_22a9_9648_5f62eeb0d2fc -->|method| 8c235727_8567_e1cd_5403_61b47aac135c

Relationship Graph

Source Code

libs/langchain_v1/tests/unit_tests/agents/middleware/core/test_framework.py lines 484–490

    class AsyncOnlyMiddleware(AgentMiddleware):
        async def awrap_model_call(
            self,
            request: ModelRequest,
            handler: Callable[[ModelRequest], Awaitable[ModelResponse]],
        ) -> ModelCallResult:
            return await handler(request)