_stream() — langchain Function Reference

Architecture documentation for the _stream() function in test_base.py from the langchain codebase.

Function python LangChainCore LanguageModelBase calls 1 called by 2

Entity Profile

LangChainCore→ LanguageModelBase→ _stream() — langchain Function Reference

Dependency Diagram

graph TD
  f41f032e_fabc_8233_a43f_f5d5b8b4e23e["_stream()"]
  646624f5_ff18_d537_ea46_b3a9a3a498f8["StreamingModel"]
  f41f032e_fabc_8233_a43f_f5d5b8b4e23e -->|defined in| 646624f5_ff18_d537_ea46_b3a9a3a498f8
  e1cdab52_3997_e14b_771a_5ee6f3d1ae95["_stream()"]
  e1cdab52_3997_e14b_771a_5ee6f3d1ae95 -->|calls| f41f032e_fabc_8233_a43f_f5d5b8b4e23e
  826cdfdf_a32e_1080_fe16_c8e5d570fa61["_stream()"]
  826cdfdf_a32e_1080_fe16_c8e5d570fa61 -->|calls| f41f032e_fabc_8233_a43f_f5d5b8b4e23e
  e1cdab52_3997_e14b_771a_5ee6f3d1ae95["_stream()"]
  f41f032e_fabc_8233_a43f_f5d5b8b4e23e -->|calls| e1cdab52_3997_e14b_771a_5ee6f3d1ae95
  style f41f032e_fabc_8233_a43f_f5d5b8b4e23e fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/tests/unit_tests/language_models/chat_models/test_base.py lines 372–379

    def _stream(
        self,
        messages: list[BaseMessage],
        stop: list[str] | None = None,
        run_manager: CallbackManagerForLLMRun | None = None,
        **kwargs: Any,
    ) -> Iterator[ChatGenerationChunk]:
        yield ChatGenerationChunk(message=AIMessageChunk(content="stream"))