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GraphMiddleware Class — langchain Architecture

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

Class python

Entity Profile

Dependency Diagram

graph TD
  17d46171_0a11_c336_eb66_622308282310["GraphMiddleware"]
  949c7cf4_56fe_f3b4_cd89_9631a7e9cb1e["AgentMiddleware"]
  17d46171_0a11_c336_eb66_622308282310 -->|extends| 949c7cf4_56fe_f3b4_cd89_9631a7e9cb1e
  08361e76_a995_1e57_f200_e292474e2f00["test_wrap_model_call_state_update.py"]
  17d46171_0a11_c336_eb66_622308282310 -->|defined in| 08361e76_a995_1e57_f200_e292474e2f00
  dce8d7d6_7cd4_9f06_95eb_8cf4701b6414["wrap_model_call()"]
  17d46171_0a11_c336_eb66_622308282310 -->|method| dce8d7d6_7cd4_9f06_95eb_8cf4701b6414

Relationship Graph

Source Code

libs/langchain_v1/tests/unit_tests/agents/middleware/core/test_wrap_model_call_state_update.py lines 880–890

        class GraphMiddleware(AgentMiddleware):
            def wrap_model_call(
                self,
                request: ModelRequest,
                handler: Callable[[ModelRequest], ModelResponse],
            ) -> ExtendedModelResponse:
                response = handler(request)
                return ExtendedModelResponse(
                    model_response=response,
                    command=Command(graph=Command.PARENT, update={"messages": []}),
                )

Defined In

Extends

Source

Frequently Asked Questions

What is the GraphMiddleware class?
GraphMiddleware 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 GraphMiddleware defined?
GraphMiddleware is defined in libs/langchain_v1/tests/unit_tests/agents/middleware/core/test_wrap_model_call_state_update.py at line 880.
What does GraphMiddleware extend?
GraphMiddleware extends AgentMiddleware.

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