test_stream_usage_override() — langchain Function Reference

Architecture documentation for the test_stream_usage_override() function in test_chat_models.py from the langchain codebase.

Function python LangChainCore LanguageModelBase

Entity Profile

LangChainCore→ LanguageModelBase→ test_stream_usage_override() — langchain Function Reference

Dependency Diagram

graph TD
  7c8b71f6_0db6_3cc1_57f5_e227e9e05867["test_stream_usage_override()"]
  f27640dd_3870_5548_d153_f9504ae1021f["test_chat_models.py"]
  7c8b71f6_0db6_3cc1_57f5_e227e9e05867 -->|defined in| f27640dd_3870_5548_d153_f9504ae1021f
  style 7c8b71f6_0db6_3cc1_57f5_e227e9e05867 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/partners/anthropic/tests/integration_tests/test_chat_models.py lines 157–163

async def test_stream_usage_override() -> None:
    # check we override with kwarg
    model = ChatAnthropic(model_name=MODEL_NAME)  # type: ignore[call-arg]
    assert model.stream_usage
    async for token in model.astream("hi", stream_usage=False):
        assert isinstance(token, AIMessageChunk)
        assert token.usage_metadata is None