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fake_model() — langchain Function Reference

Architecture documentation for the fake_model() function in test_middleware_backwards_compat.py from the langchain codebase.

Function python LangChainCore LanguageModelBase

Entity Profile

Dependency Diagram

graph TD
  6226b3ac_1075_9b76_98bf_9640db3d982f["fake_model()"]
  74d2d22f_07ae_c5bb_33c3_7da58e2da5a0["test_middleware_backwards_compat.py"]
  6226b3ac_1075_9b76_98bf_9640db3d982f -->|defined in| 74d2d22f_07ae_c5bb_33c3_7da58e2da5a0
  style 6226b3ac_1075_9b76_98bf_9640db3d982f fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain_v1/tests/unit_tests/agents/middleware_typing/test_middleware_backwards_compat.py lines 149–151

def fake_model() -> GenericFakeChatModel:
    """Create a fake model for testing."""
    return GenericFakeChatModel(messages=iter([AIMessage(content="Hello")]))

Domain

Subdomains

Defined In

Source

Frequently Asked Questions

What does fake_model() do?
fake_model() is a function in the langchain codebase, defined in libs/langchain_v1/tests/unit_tests/agents/middleware_typing/test_middleware_backwards_compat.py.
Where is fake_model() defined?
fake_model() is defined in libs/langchain_v1/tests/unit_tests/agents/middleware_typing/test_middleware_backwards_compat.py at line 149.

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