FakeChatOpenAI Class — langchain Architecture

Architecture documentation for the FakeChatOpenAI class in test_openai_functions.py from the langchain codebase.

Class python

Entity Profile

Dependency Diagram

graph TD
  1d1c5ebb_b952_3bf6_00c1_6dcb5a40551f["FakeChatOpenAI"]
  48aa29b8_65e7_522f_a445_a441eeb6baff["BaseChatModel"]
  1d1c5ebb_b952_3bf6_00c1_6dcb5a40551f -->|extends| 48aa29b8_65e7_522f_a445_a441eeb6baff
  3902d5af_33d3_b3c3_3360_35220294d3e8["test_openai_functions.py"]
  1d1c5ebb_b952_3bf6_00c1_6dcb5a40551f -->|defined in| 3902d5af_33d3_b3c3_3360_35220294d3e8
  a2460ed0_a13e_76a6_d1b5_285c794c4c9f["_llm_type()"]
  1d1c5ebb_b952_3bf6_00c1_6dcb5a40551f -->|method| a2460ed0_a13e_76a6_d1b5_285c794c4c9f
  eaca9bb5_780b_83f3_2553_127322cb796b["_generate()"]
  1d1c5ebb_b952_3bf6_00c1_6dcb5a40551f -->|method| eaca9bb5_780b_83f3_2553_127322cb796b

Relationship Graph

Source Code

libs/langchain/tests/unit_tests/runnables/test_openai_functions.py lines 14–41

class FakeChatOpenAI(BaseChatModel):
    @property
    def _llm_type(self) -> str:
        return "fake-openai-chat-model"

    @override
    def _generate(
        self,
        messages: list[BaseMessage],
        stop: list[str] | None = None,
        run_manager: CallbackManagerForLLMRun | None = None,
        **kwargs: Any,
    ) -> ChatResult:
        return ChatResult(
            generations=[
                ChatGeneration(
                    message=AIMessage(
                        content="",
                        additional_kwargs={
                            "function_call": {
                                "name": "accept",
                                "arguments": '{\n  "draft": "turtles"\n}',
                            },
                        },
                    ),
                ),
            ],
        )