langchain Architecture Docs
Home / Class/ PassthroughMiddleware Class — langchain Architecture

PassthroughMiddleware Class — langchain Architecture

Architecture documentation for the PassthroughMiddleware class in test_wrap_model_call_state_update.py from the langchain codebase.

Class python

Entity Profile

Dependency Diagram

graph TD
  02396c32_887b_a9d0_764d_c3271a7af765["PassthroughMiddleware"]
  949c7cf4_56fe_f3b4_cd89_9631a7e9cb1e["AgentMiddleware"]
  02396c32_887b_a9d0_764d_c3271a7af765 -->|extends| 949c7cf4_56fe_f3b4_cd89_9631a7e9cb1e
  08361e76_a995_1e57_f200_e292474e2f00["test_wrap_model_call_state_update.py"]
  02396c32_887b_a9d0_764d_c3271a7af765 -->|defined in| 08361e76_a995_1e57_f200_e292474e2f00
  dea12531_0427_e379_fd6c_465fc2f0b272["wrap_model_call()"]
  02396c32_887b_a9d0_764d_c3271a7af765 -->|method| dea12531_0427_e379_fd6c_465fc2f0b272

Relationship Graph

Source Code

libs/langchain_v1/tests/unit_tests/agents/middleware/core/test_wrap_model_call_state_update.py lines 204–210

        class PassthroughMiddleware(AgentMiddleware):
            def wrap_model_call(
                self,
                request: ModelRequest,
                handler: Callable[[ModelRequest], ModelResponse],
            ) -> ModelResponse:
                return handler(request)

Defined In

Extends

Source

Frequently Asked Questions

What is the PassthroughMiddleware class?
PassthroughMiddleware is a class in the langchain codebase, defined in libs/langchain_v1/tests/unit_tests/agents/middleware/core/test_wrap_model_call_state_update.py.
Where is PassthroughMiddleware defined?
PassthroughMiddleware is defined in libs/langchain_v1/tests/unit_tests/agents/middleware/core/test_wrap_model_call_state_update.py at line 204.
What does PassthroughMiddleware extend?
PassthroughMiddleware extends AgentMiddleware.

Analyze Your Own Codebase

Get architecture documentation, dependency graphs, and domain analysis for your codebase in minutes.

Try Supermodel Free