test_model_response_backwards_compat() — langchain Function Reference
Architecture documentation for the test_model_response_backwards_compat() function in test_middleware_backwards_compat.py from the langchain codebase.
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Dependency Diagram
graph TD 3cfa4d6d_6f2d_648c_e5fd_e7bb90452028["test_model_response_backwards_compat()"] 74d2d22f_07ae_c5bb_33c3_7da58e2da5a0["test_middleware_backwards_compat.py"] 3cfa4d6d_6f2d_648c_e5fd_e7bb90452028 -->|defined in| 74d2d22f_07ae_c5bb_33c3_7da58e2da5a0 style 3cfa4d6d_6f2d_648c_e5fd_e7bb90452028 fill:#6366f1,stroke:#818cf8,color:#fff
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Source Code
libs/langchain_v1/tests/unit_tests/agents/middleware_typing/test_middleware_backwards_compat.py lines 254–265
def test_model_response_backwards_compat() -> None:
"""ModelResponse can be instantiated without type params."""
# Old way - no type param
response = ModelResponse(result=[AIMessage(content="test")])
assert response.structured_response is None
# Old way - accessing fields
response2 = ModelResponse(
result=[AIMessage(content="test")],
structured_response={"key": "value"},
)
assert response2.structured_response == {"key": "value"}Domain
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Defined In
Source
Frequently Asked Questions
What does test_model_response_backwards_compat() do?
test_model_response_backwards_compat() 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 test_model_response_backwards_compat() defined?
test_model_response_backwards_compat() is defined in libs/langchain_v1/tests/unit_tests/agents/middleware_typing/test_middleware_backwards_compat.py at line 254.
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