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MiddleRetryMiddleware Class — langchain Architecture

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

Class python

Entity Profile

Dependency Diagram

graph TD
  b5e58f87_c3d8_dec4_d358_2c3db52d02cc["MiddleRetryMiddleware"]
  949c7cf4_56fe_f3b4_cd89_9631a7e9cb1e["AgentMiddleware"]
  b5e58f87_c3d8_dec4_d358_2c3db52d02cc -->|extends| 949c7cf4_56fe_f3b4_cd89_9631a7e9cb1e
  573473e5_eb93_a7d7_84ba_c975071c09af["test_wrap_model_call.py"]
  b5e58f87_c3d8_dec4_d358_2c3db52d02cc -->|defined in| 573473e5_eb93_a7d7_84ba_c975071c09af
  9a83bb7a_fde7_0640_99f0_86df7adcbba7["wrap_model_call()"]
  b5e58f87_c3d8_dec4_d358_2c3db52d02cc -->|method| 9a83bb7a_fde7_0640_99f0_86df7adcbba7

Relationship Graph

Source Code

libs/langchain_v1/tests/unit_tests/agents/middleware/core/test_wrap_model_call.py lines 942–954

        class MiddleRetryMiddleware(AgentMiddleware):
            def wrap_model_call(
                self,
                request: ModelRequest,
                handler: Callable[[ModelRequest], ModelResponse],
            ) -> ModelCallResult:
                execution_order.append("middle-before")
                # Always retry once (call handler twice)
                result = handler(request)
                execution_order.append("middle-retry")
                result = handler(request)
                execution_order.append("middle-after")
                return result

Defined In

Extends

Source

Frequently Asked Questions

What is the MiddleRetryMiddleware class?
MiddleRetryMiddleware 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 MiddleRetryMiddleware defined?
MiddleRetryMiddleware is defined in libs/langchain_v1/tests/unit_tests/agents/middleware/core/test_wrap_model_call.py at line 942.
What does MiddleRetryMiddleware extend?
MiddleRetryMiddleware extends AgentMiddleware.

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