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StructuredMiddleware Class — langchain Architecture

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

Class python

Entity Profile

Dependency Diagram

graph TD
  76699f6f_3f6f_b620_d4bc_c75f91d80b20["StructuredMiddleware"]
  949c7cf4_56fe_f3b4_cd89_9631a7e9cb1e["AgentMiddleware"]
  76699f6f_3f6f_b620_d4bc_c75f91d80b20 -->|extends| 949c7cf4_56fe_f3b4_cd89_9631a7e9cb1e
  08361e76_a995_1e57_f200_e292474e2f00["test_wrap_model_call_state_update.py"]
  76699f6f_3f6f_b620_d4bc_c75f91d80b20 -->|defined in| 08361e76_a995_1e57_f200_e292474e2f00
  8baac756_dcec_8c6a_e27b_64e0fa0d2d6d["wrap_model_call()"]
  76699f6f_3f6f_b620_d4bc_c75f91d80b20 -->|method| 8baac756_dcec_8c6a_e27b_64e0fa0d2d6d

Relationship Graph

Source Code

libs/langchain_v1/tests/unit_tests/agents/middleware/core/test_wrap_model_call_state_update.py lines 613–626

        class StructuredMiddleware(AgentMiddleware):
            def wrap_model_call(
                self,
                request: ModelRequest,
                handler: Callable[[ModelRequest], ModelResponse],
            ) -> ExtendedModelResponse:
                response = handler(request)
                response_with_structured = ModelResponse(
                    result=response.result,
                    structured_response={"key": "value"},
                )
                return ExtendedModelResponse(
                    model_response=response_with_structured,
                )

Defined In

Extends

Source

Frequently Asked Questions

What is the StructuredMiddleware class?
StructuredMiddleware 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 StructuredMiddleware defined?
StructuredMiddleware is defined in libs/langchain_v1/tests/unit_tests/agents/middleware/core/test_wrap_model_call_state_update.py at line 613.
What does StructuredMiddleware extend?
StructuredMiddleware extends AgentMiddleware.

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