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RequestModifyingMiddleware Class — langchain Architecture

Architecture documentation for the RequestModifyingMiddleware class in test_wrap_model_call.py from the langchain codebase.

Class python

Entity Profile

Dependency Diagram

graph TD
  8d7e4236_9f72_fe61_8876_39c05d2cbb8e["RequestModifyingMiddleware"]
  949c7cf4_56fe_f3b4_cd89_9631a7e9cb1e["AgentMiddleware"]
  8d7e4236_9f72_fe61_8876_39c05d2cbb8e -->|extends| 949c7cf4_56fe_f3b4_cd89_9631a7e9cb1e
  573473e5_eb93_a7d7_84ba_c975071c09af["test_wrap_model_call.py"]
  8d7e4236_9f72_fe61_8876_39c05d2cbb8e -->|defined in| 573473e5_eb93_a7d7_84ba_c975071c09af
  8a7ce17f_e842_cc3f_73b1_cf3a771db47b["wrap_model_call()"]
  8d7e4236_9f72_fe61_8876_39c05d2cbb8e -->|method| 8a7ce17f_e842_cc3f_73b1_cf3a771db47b

Relationship Graph

Source Code

libs/langchain_v1/tests/unit_tests/agents/middleware/core/test_wrap_model_call.py lines 1542–1551

        class RequestModifyingMiddleware(AgentMiddleware):
            def wrap_model_call(
                self,
                request: ModelRequest,
                handler: Callable[[ModelRequest], ModelResponse],
            ) -> ModelCallResult:
                # Add a system message to the request
                modified_request = request
                modified_messages.append(len(modified_request.messages))
                return handler(modified_request)

Defined In

Extends

Source

Frequently Asked Questions

What is the RequestModifyingMiddleware class?
RequestModifyingMiddleware is a class in the langchain codebase, defined in libs/langchain_v1/tests/unit_tests/agents/middleware/core/test_wrap_model_call.py.
Where is RequestModifyingMiddleware defined?
RequestModifyingMiddleware is defined in libs/langchain_v1/tests/unit_tests/agents/middleware/core/test_wrap_model_call.py at line 1542.
What does RequestModifyingMiddleware extend?
RequestModifyingMiddleware extends AgentMiddleware.

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