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wrap_model_call() — langchain Function Reference

Architecture documentation for the wrap_model_call() function in test_wrap_model_call.py from the langchain codebase.

Function python LangChainCore LanguageModelBase

Entity Profile

Dependency Diagram

graph TD
  d149d7ab_e978_d671_f585_520776475696["wrap_model_call()"]
  feae28b2_c94b_7ad9_e85f_c28adc953c1a["MultiTransformMiddleware"]
  d149d7ab_e978_d671_f585_520776475696 -->|defined in| feae28b2_c94b_7ad9_e85f_c28adc953c1a
  style d149d7ab_e978_d671_f585_520776475696 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain_v1/tests/unit_tests/agents/middleware/core/test_wrap_model_call.py lines 350–364

            def wrap_model_call(
                self,
                request: ModelRequest,
                handler: Callable[[ModelRequest], ModelResponse],
            ) -> ModelCallResult:
                result = handler(request)
                # result is ModelResponse, extract AIMessage from it
                ai_message = result.result[0]

                # First transformation: uppercase
                assert isinstance(ai_message.content, str)
                content = ai_message.content.upper()
                # Second transformation: add prefix and suffix
                content = f"[START] {content} [END]"
                return AIMessage(content=content)

Domain

Subdomains

Defined In

Source

Frequently Asked Questions

What does wrap_model_call() do?
wrap_model_call() is a function in the langchain codebase, defined in libs/langchain_v1/tests/unit_tests/agents/middleware/core/test_wrap_model_call.py.
Where is wrap_model_call() defined?
wrap_model_call() is defined in libs/langchain_v1/tests/unit_tests/agents/middleware/core/test_wrap_model_call.py at line 350.

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