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before_model() — langchain Function Reference

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

Function python LangChainCore LanguageModelBase calls 1 called by 1

Entity Profile

Dependency Diagram

graph TD
  ed036ea2_7468_131b_6107_944e0f738c3a["before_model()"]
  11af10c7_4150_b78c_f01b_9e5dfc840a42["types.py"]
  ed036ea2_7468_131b_6107_944e0f738c3a -->|defined in| 11af10c7_4150_b78c_f01b_9e5dfc840a42
  5035a06c_c77b_7c86_b1e5_6e9c163797b3["before_model()"]
  5035a06c_c77b_7c86_b1e5_6e9c163797b3 -->|calls| ed036ea2_7468_131b_6107_944e0f738c3a
  5035a06c_c77b_7c86_b1e5_6e9c163797b3["before_model()"]
  ed036ea2_7468_131b_6107_944e0f738c3a -->|calls| 5035a06c_c77b_7c86_b1e5_6e9c163797b3
  style ed036ea2_7468_131b_6107_944e0f738c3a fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain_v1/langchain/agents/middleware/types.py lines 911–913

def before_model(
    func: _CallableWithStateAndRuntime[StateT, ContextT],
) -> AgentMiddleware[StateT, ContextT]: ...

Domain

Subdomains

Defined In

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Called By

Source

Frequently Asked Questions

What does before_model() do?
before_model() is a function in the langchain codebase, defined in libs/langchain_v1/langchain/agents/middleware/types.py.
Where is before_model() defined?
before_model() is defined in libs/langchain_v1/langchain/agents/middleware/types.py at line 911.
What does before_model() call?
before_model() calls 1 function(s): before_model.
What calls before_model()?
before_model() is called by 1 function(s): before_model.

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