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before_model() — langchain Function Reference

Architecture documentation for the before_model() function in test_framework.py from the langchain codebase.

Function python LangChainCore LanguageModelBase calls 1

Entity Profile

Dependency Diagram

graph TD
  79d43dca_0561_c279_c472_317e6bd19324["before_model()"]
  90ee81dd_26cf_08d8_d185_e5ea9052946b["MostlySyncMiddleware"]
  79d43dca_0561_c279_c472_317e6bd19324 -->|defined in| 90ee81dd_26cf_08d8_d185_e5ea9052946b
  8eb23e9c_37a8_6540_bfd3_b42a64a7cbee["before_model()"]
  79d43dca_0561_c279_c472_317e6bd19324 -->|calls| 8eb23e9c_37a8_6540_bfd3_b42a64a7cbee
  style 79d43dca_0561_c279_c472_317e6bd19324 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain_v1/tests/unit_tests/agents/middleware/core/test_framework.py lines 705–706

        def before_model(self, state: AgentState[Any], runtime: Runtime) -> None:
            calls.append("MostlySyncMiddleware.before_model")

Domain

Subdomains

Defined In

Calls

Source

Frequently Asked Questions

What does before_model() do?
before_model() is a function in the langchain codebase, defined in libs/langchain_v1/tests/unit_tests/agents/middleware/core/test_framework.py.
Where is before_model() defined?
before_model() is defined in libs/langchain_v1/tests/unit_tests/agents/middleware/core/test_framework.py at line 705.
What does before_model() call?
before_model() calls 1 function(s): before_model.

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