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before_agent() — langchain Function Reference

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

Function python LangChainCore MessageInterface calls 1 called by 2

Entity Profile

Dependency Diagram

graph TD
  1ce8d842_781b_35a8_8aae_44bd2c3e3f46["before_agent()"]
  9273b6e4_1831_711f_cd8d_6a3b85ae11a8["NoopZero"]
  1ce8d842_781b_35a8_8aae_44bd2c3e3f46 -->|defined in| 9273b6e4_1831_711f_cd8d_6a3b85ae11a8
  4014cea1_1c2d_cca6_4f48_176441158497["before_agent()"]
  4014cea1_1c2d_cca6_4f48_176441158497 -->|calls| 1ce8d842_781b_35a8_8aae_44bd2c3e3f46
  be0cd5a4_9570_ba6b_5732_5308ca1f3a9a["test_agent_graph_with_jump_to_end_as_after_agent()"]
  be0cd5a4_9570_ba6b_5732_5308ca1f3a9a -->|calls| 1ce8d842_781b_35a8_8aae_44bd2c3e3f46
  4014cea1_1c2d_cca6_4f48_176441158497["before_agent()"]
  1ce8d842_781b_35a8_8aae_44bd2c3e3f46 -->|calls| 4014cea1_1c2d_cca6_4f48_176441158497
  style 1ce8d842_781b_35a8_8aae_44bd2c3e3f46 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain_v1/tests/unit_tests/agents/middleware/core/test_framework.py lines 227–228

        def before_agent(self, state: AgentState[Any], runtime: Runtime) -> None:
            return None

Domain

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Defined In

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Source

Frequently Asked Questions

What does before_agent() do?
before_agent() is a function in the langchain codebase, defined in libs/langchain_v1/tests/unit_tests/agents/middleware/core/test_framework.py.
Where is before_agent() defined?
before_agent() is defined in libs/langchain_v1/tests/unit_tests/agents/middleware/core/test_framework.py at line 227.
What does before_agent() call?
before_agent() calls 1 function(s): before_agent.
What calls before_agent()?
before_agent() is called by 2 function(s): before_agent, test_agent_graph_with_jump_to_end_as_after_agent.

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